Audio Transformers

Manufacturer	Packaging	Series	ProductStatus	TurnsRatio-Primary:Secondary	Impedance-Primary(Ohms)	Impedance-Secondary(Ohms)	DCResistance(DCR)-Primary	DCResistance(DCR)-Secondary	TransformerType	FrequencyRange	FrequencyResponse	Voltage-Isolation	InsertionLoss	ReturnLoss	PowerLevel	OperatingTemperature	ApprovalAgency	MountingType	Size/Dimension	Height-Seated(Max)
Allied Components International Classic Tone Hammond Manufacturing Murata Electronics Pulse Electronics Network Pulse Electronics Power Radio Design Labs SensComp, Inc. Sumida America Components Inc. Tamura TE Connectivity AMP Connectors Triad Magnetics Visaton GmbH & Co. KG	- Box Bulk Tape & Box (TB) Tape & Reel (TR) Tape & Reel (TR),Cut Tape (CT) Tape & Reel (TR),Cut Tape (CT),Digi-Reel® Tray Tube	* - 101 102 104 106 107 108 109 1140 117 119 124 125 125SE 126 140 140EX 141 143 144 145 146 148 149 150 151 1600 1750 1760 290 560 800 800A 850 850A A ESMIT JTM MET Peter W. Dahl Design, Hallicrafters SX-28 Peter W. Dahl Design, Johnson Valiant, 22.1285, P2998 Peter W. Dahl Design, Johnson Viking 500 Red-Spec TTC Tweed Fender® Deluxe™ TX™ TY	Active Discontinued at Mosen Last Time Buy Obsolete	- 0.659:1 0.918:1 1.22:1 1.29:1 1.35:1:1 1.52:1 1.55:1 1.58:1 1.81:1 10.14:1 10.40:1 10:1 11.11:1 13.68:1 13.71:1 13.7:1 14.1:1 14.21:1 14.24:1 14.30:1 15.86:1 15.93:1 19.4:1 1:0.02 1:0.397 1:0.5 1:0.5:0.5 1:0.736 1:0.90 1:1 1:1, 1:2, 1:4 1:1, 2:1 1:1.033 1:1.04 1:1.05 1:1.06 1:1.07 1:1.1 1:1.27 1:1.416 1:1.42 1:1.47 1:1.49 1:122 1:13.27 1:1:1 1:1:2 1:2 1:2.21 1:2.48 1:2.97, 1:5.94 1:3 1:34:5 1:4 1:45 1:5 1:5.47 1:5:5 1CT:1CT 2.1:1 2.23:1 2.24:1 2.43:1 2.58:1 2.88:1 21.46:1 22.35:1 22.4:1 22.93:1 25:1 27.87:1 28.72:1 29.19:1 2:1 2:1:1 2:5 3.16:1 3.53:1 3.54:1 31.11:1 31.16:1 32.61:1 4.07:1 4.08:1 4.47:1 4.48:1:1 4.4:1 4.7:1 40.62:1, 28.72:1, 20.31:1 44.61:1 44.67:1 49.16:1 5.07:1 5.16:1 53.11:1 55.3:1 55.8:1 5:1 6.12:1 6.45:1 6.88:1 7.07:1 7.1:1 8.13:1 8.62:1 8.66:1 8:1	- 1.2k 1.2k ~ 25k 1.2kCT 1.5k 1.5kCT 1.6kCT 1.7kCT 1.9kCT 100 100CT 100k 100kCT 10k 10kCT 11.25k 120CT 135 150 150CT 15k 15kCT 16 16, 8 160 1k 1kCT 2.35kCT/25m 2.5k 2.5k ~ 10k 2.5k, 4k 2.5kCT 200, 50/50 200CT 200k 200kCT 20k 20k, 5k/5k 22.8k 23kCT 250CT 25k 25kCT 25kCT, 20kCT 2k 2kCT 3.2 3.2kCT 3.4kCT 3.5k 3.8kCT 30 30, 7.5/7.5 300 300CT 30k 30kCT 320CT 3k 3kCT 4 4.15kCT 4.25kCT 4.2kCT 4.3kCT 40k, 10k/10k 450 48, 12/12 48CT 4k 4kCT 5.482k 50 500 500, 125/125 500CT 50k 50kCT 5k 5k, 8k 5kCT 6.2kCT 6.5k 6.6kCT 6.95kCT 600 600, 150/150 600/600 600CT 6k 6kCT 7.371kCT 7.3kCT 7.5, 30 7.5kCT 7.6kCT 75 7kCT 7kCT, 15k 8 8.5kCT 8kCT 900CT 9kCT	- 1.2k, 300/300 1.2k, 600/600 1.2kCT 1.2kCT, 600/600 1.5 ~ 15 1.5k 1.5kCT 1.6k, 400/400 10k 10k, 2.5k/2.5k 10k, 40k 10kCT 12 120, 30/30 125 135CT 135k, 33.8k/33.8k 15.8kCT 150 150/150 150CT 15kCT 160, 40/40 1k 1k, 250/250 1kCT 1kCT, 800CT 2 2, 4, 8 2, 4, 8, 16 2.1kCT 2.4k 2.4k, 600/600 2.5kCT 2.6kCT 200, 50/50 200CT 20k 20k, 5k/5k 240, 60/60 250CT 25V 260 287 2k, 500/500 2kCT 3.2 3.2, 4, 6, 8 3.2, 8, 16 3.2CT 3.5, 8, 16, 250, 500 3.8k 301 30k 320 330 346 348 374 392 4 4 ~ 32 4, 8 4, 8, 16 4, 8, 16, 70V 4.8k, 1.2k/1.2k 40k, 10k/10k 40kCT 470 490CT 4k 4kCT 50 500, 125/125 500CT 50CT 510 525 530 5k 5k, 500, 100 600 600, 150/150 600, 300/300 600/600 600CT 60k 70V 70V, 25V 8 8, 16 80, 20/20 80k 80k, 20k/20k 8CT 8k 900 90kCT	- 1.05kOhm 1.065kOhm 1.18kOhm 1.18Ohm 1.1kOhm 1.1Ohm, 1.24Ohm, 1.34Ohm 1.24kOhm 1.2kOhm 1.3kOhm 1.4kOhm 1.52Ohm 1.585kOhm 1.645kOhm 1.6kOhm 1.76kOhm 1.7kOhm 1.89kOhm 10.5Ohm 100.5Ohm 100Ohm 102.2Ohm, 114.3Ohm 102Ohm 104Ohm 108Ohm 10Ohm 11.3Ohm 11.4Ohm 110.1Ohm 110Ohm 111Ohm 115Ohm 11Ohm 120Ohm 125Ohm 127Ohm 135Ohm 138Ohm 13Ohm 140Ohm 145Ohm 148Ohm 149Ohm 14Ohm 15.36Ohm, 16.56Ohm 15.65Ohm, 17.19Ohm 150.7Ohm 150Ohm 150Ohm, 300Ohm 152Ohm 155Ohm 15Ohm 160Ohm 165Ohm 168Ohm 170Ohm 172Ohm 175Ohm 178Ohm 17Ohm, 19Ohm 185Ohm 18Ohm 190Ohm, 380Ohm 19Ohm 1kOhm 2.23kOhm 2.24kOhm 2.4kOhm 2.4Ohm 20.4Ohm 20Ohm 210Ohm 218Ohm, 236Ohm 22.07Ohm, 24.85Ohm 22.5Ohm 220Ohm 225Ohm 22Ohm 23.8Ohm 230mOhm 230Ohm 241.7 Ohm 24Ohm 25.72Ohm, 12.86Ohm 250mOhm 254.8Ohm 25Ohm 260Ohm 265Ohm 26Ohm 27Ohm 280Ohm 284.2Ohm 289Ohm 28Ohm 3.11Ohm 3.66kOhm 3.6kOhm 3.775kOhm 3.8kOhm 300Ohm 30Ohm 30Ohm, 47.44Ohm 314.2Ohm 31Ohm 31Ohm, 31Ohm 32.74Ohm, 36.71Ohm 32Ohm 33.09Ohm, 34.82Ohm, 370mOhm 330Ohm 33Ohm 340Ohm 341Ohm 347.8Ohm 34Ohm 350Ohm 35Ohm 36.65Ohm 36Ohm 37.19Ohm, 42.17Ohm 370Ohm 373Ohm, 355Ohm 375Ohm 380Ohm 384Ohm 38Ohm 4.14Ohm 4.4Ohm 4.5kOhm 4.89kOhm 40.38Ohm 400mOhm 405Ohm 40Ohm 41.3Ohm, 40.5Ohm, 81.8Ohm 41.74Ohm, 3.14Ohm 410Ohm 41Ohm 424Ohm 428Ohm 42Ohm 43.16Ohm, 46.28Ohm 438Ohm 43Ohm 44Ohm 44Ohm, 98.5Ohm 45.53Ohm, 49.09Ohm 450mOhm 45Ohm 46.48Ohm, 51.04Ohm 46Ohm 47.43Ohm, 54.65Ohm 47Ohm 480Ohm 485Ohm 49Ohm 4Ohm 5.03Ohm, 12.3Ohm, 7.16Ohm 5.3kOhm 5.3Ohm 5.43kOhm 50Ohm 510mOhm 52Ohm 53Ohm 540Ohm 54Ohm 54Ohm, 60Ohm 550Ohm 55Ohm 56.5Ohm 56.93Ohm, 60.95Ohm 56Ohm 575Ohm 57Ohm 58Ohm 598.7Ohm 59Ohm 6.6Ohm 60Ohm 63.69Ohm, 71.33Ohm 63Ohm 64Ohm 65.4Ohm, 74.6Ohm 650Ohm 65mOhm 65Ohm 66.16Ohm, 74.93Ohm 66.5Ohm 66.8Ohm, 160.5Ohm 660Ohm 67Ohm 68Ohm 690Ohm 69Ohm 6Ohm 700Ohm 70Ohm 71.34Ohm, 80.42Ohm 710Ohm 71Ohm 72.11Ohm, 79.35Ohm 72.4Ohm 720Ohm 72Ohm 73.2Ohm, 74.41Ohm, 147.4Ohm 74Ohm 750Ohm 75Ohm 76.53Ohm 76.5Ohm 790Ohm 796Ohm 79Ohm 8.03Ohm 8.054Ohm, 9.752Ohm 80Ohm 81.61Ohm, 78.63Ohm 82.5Ohm 820Ohm 82Ohm, 108.3Ohm 84.46Ohm, 96.25Ohm 850Ohm 85Ohm 886Ohm 88Ohm 89.43Ohm 89.7Ohm 900Ohm 90Ohm 91.31Ohm, 102.3Ohm 92.16Ohm, 102.8Ohm 92Ohm 94Ohm 95.61Ohm 95Ohm 97.36Ohm, 194.7Ohm 97Ohm 98.98Ohm, 101.9Ohm	- 1.02Ohm 1.07kOhm 1.08kOhm 1.3kOhm 1.432kOhm 1.525kOhm 1.5Ohm 1.63kOhm, 2.25kOhm 1.6kOhm 1.85Ohm 10.6Ohm 10.8Ohm 100mOhm 100mOhm, 1.68Ohm, 4.72Ohm 100mOhm, 120mOhm 100Ohm 105Ohm 107Ohm 108Ohm 10Ohm 11.64Ohm 110Ohm 112Ohm 115Ohm 116.5Ohm 117Ohm 118Ohm 120mOhm, 150mOhm, 210mOhm 120mOhm, 190mOhm, 270mOhm 120Ohm 122Ohm 123Ohm 125Ohm 126Ohm 130mOhm, 210mOhm, 270mOhm 135Ohm 139Ohm 14.5Ohm, 22Ohm 140mOhm 140mOhm, 3.7Ohm, 40.72Ohm 140Ohm 145Ohm 146/168Ohm 14Ohm 14Ohm, 62Ohm 150Ohm 152mOhm, 203mOhm, 217mOhm 152Ohm 154mOhm, 218mOhm, 303mOhm 159Ohm 160mOhm 165Ohm 166mOhm, 4.776Ohm, 52.25Ohm 170mOhm 170mOhm, 240mOhm, 360mOhm 170mOhm, 300mOhm, 440mOhm 170mOhm, 350mOhm 170Ohm 171mOhm, 245mOhm, 476mOhm 172Ohm 175Ohm 178Ohm 17Ohm 18.2Ohm 180mOhm 180Ohm 190Ohm 19Ohm 1kOhm 1Ohm 2.5Ohm 2.7Ohm 2.9Ohm 200mOhm 200Ohm 20mOhm, 30mOhm, 50mOhm 210mOhm, 239mOhm, 309mOhm 210mOhm, 344mOhm 217Ohm 21Ohm 220mOhm, 270mOhm 222mOhm 229mOhm, 323mOhm, 463mOhm, 670mOhm 230mOhm 230mOhm, 370mOhm 230Ohm 232mOhm, 270mOhm 232mOhm, 333mOhm, 343mOhm 237mOhm, 364mOhm, 473mOhm 238Ohm 240mOhm, 185.4Ohm 244mOhm, 377mOhm, 490mOhm 245Ohm 24Ohm 24Ohm, 24Ohm 25.4Ohm 250mOhm 251mOhm, 334mOhm, 359mOhm 252mOhm, 480mOhm, 714mOhm 253mOhm, 462mOhm 259mOhm, 364mOhm, 496mOhm, 6.727Ohm, 9.55Ohm 25Ohm 260Ohm 270mOhm 276mOhm, 391mOhm, 464mOhm, 9.304Ohm 27Ohm 28Ohm 292mOhm 295mOhm 297Ohm, 394Ohm 3.4Ohm 3.73kOhm 300mOhm 300mOhm, 580mOhm, 820mOhm 300mOhm, 690mOhm, 860mOhm 300Ohm 300Ohm, 450mOhm 306mOhm, 432mOhm, 540mOhm 30Ohm 310mOhm, 500mOhm 321mOhm, 365mOhm, 476mOhm 330mOhm 330Ohm 33Ohm 340mOhm 350Ohm 35Ohm 360mOhm 375Ohm 38Ohm 390Ohm 39Ohm 4.7Ohm 4.8Ohm 4.98kOhm 4.9Ohm 40.7Ohm, 40.7Ohm 400mOhm 402mOhm, 502mOhm, 700mOhm 409mOhm 40mOhm, 3.76Ohm, 5.865Ohm 40Ohm 40Ohm, 45Ohm 420mOhm 420Ohm 426Ohm 42Ohm 430Ohm 450mOhm 45Ohm 47.8Ohm 470mOhm 47Ohm 480mOhm 485Ohm 500mOhm 500Ohm 50Ohm 51.5Ohm 51Ohm 52.32Ohm 52Ohm 53Ohm 54Ohm 55mOhm 565/650Ohm 56Ohm 56Ohm, 56Ohm 570Ohm 58Ohm 590mOhm 59Ohm 6.2Ohm 600mOhm 60Ohm 61Ohm 62Ohm 634mOhm 63Ohm 64Ohm 65Ohm 66Ohm 66Ohm, 66Ohm 680Ohm 686mOhm, 803mOhm, 1.157Ohm 68Ohm 69Ohm 7.3Ohm 700mOhm 70mOhm, 80mOhm, 6.14Ohm, 46.16Ohm 70Ohm 71Ohm 72.4Ohm 720mOhm 73.5Ohm 735 ~ 390Ohm, 850 ~ 455Ohm 74mOhm, 223mOhm, 258mOhm 75Ohm 76Ohm 78Ohm 79.19Ohm 7Ohm 8.2Ohm 80mOhm, 4.75Ohm, 10.34Ohm 80mOhm, 4.8Ohm, 44.94Ohm 80Ohm 82Ohm 83Ohm 85Ohm 89.7Ohm 89Ohm 8Ohm 900mOhm 903.5Ohm 90Ohm 91mOhm, 183mOhm, 219mOhm 92Ohm 95Ohm 96Ohm 97Ohm 98Ohm 9Ohm Parallel @ 565Ohm, Series @ 650Ohm	- Audio Coupling Broadcast Quality Data/Voice Data/Voice Coupling Economical Open Type General Purpose Impedance Matching Line (Audio Power Distribution) Low Profile, Open Type Miniature Epoxy Potted Push-Pull Audiophile, Ultra-Linear - Tube Output Push-Pull Potted, Ultra-Linear - Tube Output Shielded Single Ended Audiophile Single Ended Audiophile, Ultra-Linear - Tube Output Sound Distribution Tube Driver and Speaker Matching Voice	- 100Hz ~ 15kHz 100Hz ~ 9kHz 100kHz ~ 55MHz 150Hz 150Hz ~ 15kHz 170Hz 200Hz 200Hz ~ 100kHz 200Hz ~ 15kHz 200Hz ~ 3.5kHz 200Hz ~ 4kHz 200Hz ~ 50kHz 20Hz ~ 20kHz 215Hz 300Hz ~ 100kHz 300Hz ~ 20kHz 300Hz ~ 3.4kHz 300Hz ~ 3.5kHz 300Hz ~ 4kHz 300Hz ~ 50kHz 30Hz ~ 15kHz 30Hz ~ 20kHz 30Hz ~ 22kHz 30Hz ~ 30kHz 310Hz 50Hz ~ 10kHz 50Hz ~ 12kHz 50Hz ~ 15kHz 50Hz ~ 19kHz 60Hz 660Hz ~ 3.5kHz 70Hz ~ 10kHz 70Hz ~ 11kHz 70Hz ~ 15kHz	- -0.35dB ~ 0.15dB -1.6dB ~ 0.3dB -1.8dB ~ 0.5dB -1dB -1dB ~ 0.7dB -2.5dB ~ 0.3dB -2dB ~ 0.2dB -3dB 0.5dB 1dB 3dB ±0.16dB ±0.1dB ±0.25dB ±0.2dB ±0.35dB ±0.3dB ±0.3dB ~ ±0.5dB ±0.4dB ±0.5dB ±0.7dB ±1.5dB ±1.75dB ±1dB ±1dB ~ ±4dB ±2.5dB ±2dB ±3dB	- 1000V 1000VRMS @ 1 Minute 1000VRMS @ 1 Second 1000VRMS @ 30 Seconds 100V 100VAC 100VRMS 120/240VAC 1200VAC 1500V 1500V @ 1 Second 1500VAC 1500Vrms 1500VRMS @ 1 Minute 1500Vrms @ 1 Second 1750V @ 1 Second 1850V @ 1 Second 1875VRMS @ 1 Second 2000V 2000V @ 1 Second 2000Vrms 200V 2500V @ 1 Second 250V 250VAC @ 1 Sec 25V, 70V 2828VDC @ 1 Second 3000VRMS @ 1 Minute 3500Vrms 3535VDC @ 1 Second 3750Vrms 4000VRMS @ 1 Minute 400VDC 500Vrms 500VRMS @ 1 Minute 500VRMS @ 1 Second 500VRMS @ 30 Seconds 700V 70V 750V	- -1dB Max @ 100kHz ~ 100MHz -3.5dB Max @ 6-9MHz 0.5dB 0.65dB Typ 0.75dB Max @ 1kHz 0.7dB 0.8dB Typ 0.9dB Typ 1.1dB Typ 1.1dB Typ @ 1kHz 1.25dB 1.25dB @ 1kHz 1.2dB @ 200Hz, 1dB @ 1kHz, 1dB @ 20kHz, 1.7dB @ 100kHz 1.2dB Max @ 1kHz 1.2dB Typ 1.4dB 1.4dB Max @ 1kHz 1.5dB 1.5dB @ 1kHz 1.5dB @ 1kHz Max 1.5dB Max @ 1kHz 1.5dB Typ 1.6dB Max @ 1kHz 1.75dB Typ 1.7dB Max @ 1.8kHz 1.7dB Max @ 1kHz 1.8dB Max @ 2kHz 1.9dB Max @ 1.8kHz 1dB 1dB @ 1kHz Max 1dB @ 200Hz, 1dB @ 1kHz, 1dB @ 20kHz, 1.9dB @ 100kHz 1dB Max 1dB Max @ 1kHz 1dB Typ 1dB Typ @ 1kHz 2.2dB Max @ 1kHz 2.5dB 2.5dB Max @ 1kHz 2.5dB Typ 2.7dB @ 1kHz 2.8dB Max @ 1kHz 2dB 2dB Max @ 1kHz 2dB Max @ 2kHz 2dB Typ 3.25dB Max @ 1kHz 3.2dB Max @ 1kHz 3.75dB 3.75dB Max @ 1kHz 3.85dB Max @ 1kHz 3.8dB Max @ 1kHz 3dB Max @ 2kHz 3dB Max @ 660Hz ~ 800Hz, 2.5dB Max @ 800Hz @ 3.5kHz 4dB Max @ 1kHz 4dB Max @ 2kHz ±1dB	- -12dB Min @ 6-9MHz -18dB Min @ 1MHz ~ 30MHz 10dB Typ 12dB 13dB Typ 14dB Min @ 1.8kHz 14dB Min @ 1kHz 14dB Min @ 200Hz ~ 4kHz 14dB Typ 15dB Typ 1650R 16dB Min @ 200Hz ~ 4kHz 16dB Min @ 300Hz ~ 3.5kHz 18dB 18dB @ 200Hz, 18dB @ 1kHz, 18dB @ 10kHz 18dB Min @ 200Hz ~ 4kHz 18dB Typ 20dB @ 200Hz, 1dB @ 1kHz, 25dB @ 10kHz 20dB @ 200Hz, 30dB @ 1kHz, 25dB @ 10kHz 20dB Min @ 100kHz ~ 10MHz 20dB Min @ 1kHz 20dB Min @ 200Hz ~ 4kHz 20dB Typ 22.5dB Typ 24dB 24dB @ 300Hz ~ 3.5kHz Min 25dB Min @ 1kHz 25dB Min @ 300Hz ~ 3.5kHz 26dB 26dB Min 26dB Min @ 1kHz 26dB Min @ 300Hz 26dB Typ 28dB Typ 30dB Typ 32dB Typ 36dB 8dB Min @ 200Hz ~ 4kHz 9dB	- -20dB ~ 4dB -40dB ~ 4dB -40dB ~ 7dB -45dB ~ 10dB -45dB ~ 7dB 1.5W 1000mW 100mW 100W 10dB 10mW 10mW Max @ 300Hz 10W 120W 12mW 12W 135mW 150mW 15dB 15mW 15W 16W 1W 200mW 20dB Max 20mW 20W 250W 25mW 25W 280W 2W 3.5dB 3.5W 300mW 30mW 30W 32A 35mW 35W 3mW 3W 40mW 40W 45W 460mW 4mW 4W 500mW 50mW 50W 5mW 5W 60W 65mW 65mW Max @ 300Hz 700mW 75mW 75W 7dB 8W	- -10°C ~ 60°C -20°C ~ 80°C -20°C ~ 85°C -34°C ~ 185°C -34°C ~ 85°C -40°C ~ 105°C -40°C ~ 125°C -40°C ~ 85°C -40°C ~ 90°C 0°C ~ 105°C 0°C ~ 55°C 0°C ~ 70°C	- CE CSA, UR CSA-C22.2 No. 66-M1988, UL1459 CSA-C22.2 No. 66-M1988, UL1862 CSA-C22.2 No. 66-M1988, UL1863 CSA-C22.2 No. 950-95, UL1950 CSA-C22.2 No. 950-M89, UL1459, UL1950 UL1950 UL1950, UL60950 UL1950, UL60950, EN60950 UL60950 UL60950, EN60950	- Chassis Mount Surface Mount Through Hole	- 0.256 L x 0.244 W (6.50mm x 6.20mm) 0.272 L x 0.150 W (6.90mm x 3.80mm) 0.280 L x 0.205 W (7.10mm x 5.20mm) 0.330 L x 0.402 W (8.38mm x 10.20mm) 0.333 L x 0.315 W (8.45mm x 8.00mm) 0.335 L x 0.330 W (8.51mm x 8.38mm) 0.335 L x 0.642 W (8.50mm x 16.30mm) 0.375 L x 0.310 W (9.53mm x 7.87mm) 0.378 L x 0.492 W (9.60mm x 12.50mm) 0.390 L x 0.665 W (9.90mm x 17.80mm) 0.390 L x 0.701 W (9.90mm x 17.80mm) 0.409 L x 0.310 W (10.40mm x 7.87mm) 0.410 L x 0.310 W (10.41mm x 7.87mm) 0.450 L x 0.450 W (11.43mm x 11.43mm) 0.461 L x 0.394 W (11.70mm x 10.00mm) 0.492 L x 0.378 W (12.50mm x 9.60mm) 0.500 L x 0.343 W (12.70mm x 8.70mm) 0.500 L x 0.350 W (12.70mm x 8.89mm) 0.528 L x 0.512 W (13.40mm x 13.00mm) 0.530 L x 0.516 W (13.46mm x 13.11mm) 0.532 L x 0.551 W (13.50mm x 14.00mm) 0.570 L x 0.570 W (14.48mm x 14.48mm) 0.591 L x 0.472 W (15.01mm x 11.99mm) 0.591 L x 0.571 W (15.00mm x 14.50mm) 0.610 L x 0.689 W (15.50mm x 17.50mm) 0.630 L x 0.586 W (16.00mm x 14.88mm) 0.650 L x 0.435 W (16.51mm x 11.05mm) 0.669 L x 0.669 W (17.00mm x 17.00mm) 0.670 L x 0.781 W (17.02mm x 19.84mm) 0.689 L x 0.610 W (17.50mm x 15.50mm) 0.719 L x 0.482 W (18.25mm x 12.24mm) 0.780 L x 0.654 W (19.80mm x 16.60mm) 0.780 L x 0.660 W (19.81mm x 16.76mm) 0.790 L x 0.812 W (20.07mm x 20.62mm) 0.791 L x 0.689 W (20.09mm x 17.50mm) 0.799 L x 0.650 W (20.30mm x 16.50mm) 0.799 L x 0.689 W (20.30mm x 17.50mm) 0.799 L x 1.201 W (20.30mm x 30.50mm) 0.800 L x 0.670 W (20.32mm x 17.02mm) 0.800 L x 0.720 W (20.32mm x 18.29mm) 0.800 L x 0.770 W (20.32mm x 19.56mm) 0.810 L x 0.690 W (20.57mm x 17.53mm) 0.812 L x 0.700 W (20.62mm x 17.78mm) 0.812 L x 0.715 W (20.62mm x 18.16mm) 0.815 L x 0.650 W (20.70mm x 16.50mm) 0.815 L x 1.250 W (20.70mm x 31.75mm) 0.820 L x 0.680 W (20.83mm x 17.27mm) 0.820 L x 0.715 W (20.83mm x 18.16mm) 0.823 L x 0.752 W (20.90mm x 19.10mm) 0.827 L x 0.787 W (21.00mm x 20.00mm) 0.839 L x 0.630 W (21.30mm x 16.00mm) 0.839 L x 0.760 W (21.30mm x 19.30mm) 0.860 L x 0.710 W (21.84mm x 18.03mm) 0.866 L x 0.630 W (22.00mm x 16.00mm) 0.886 L x 0.909 W (22.50mm x 23.10mm) 0.929 L x 0.976 W (23.60mm x 24.80mm) 0.945 L x 0.906 W (24.00mm x 23.00mm) 0.955 L x 0.685 W (24.26mm x 17.40mm) 0.980 L x 0.720 W (24.89mm x 18.29mm) 1.000 L x 0.690 W (25.40mm x 17.53mm) 1.030 L x 0.770 W (26.16mm x 19.56mm) 1.040 L x 0.960 W (26.42mm x 24.38mm) 1.060 L x 0.820 W (26.92mm x 20.83mm) 1.065 L x 1.080 W (27.05mm x 27.43mm) 1.080 L x 0.880 W (27.43mm x 22.35mm) 1.232 L x 0.480 W (31.30mm x 12.20mm) 1.232 L x 0.482 W (31.30mm x 12.25mm) 1.250 Dia (31.75mm) 1.272 L x 1.299 W (32.30mm x 33.00mm) 1.290 L x 1.400 W (32.77mm x 35.56mm) 1.315 L x 0.930 W (33.40mm x 23.62mm) 1.330 L x 1.640 W (33.78mm x 41.66mm) 1.375 L x 1.187 W (34.93mm x 30.15mm) 1.500 L x 1.201 W (38.10mm x 30.50mm) 1.630 L x 0.880 W (41.40mm x 22.35mm) 1.650 L x 1.340 W (41.91mm x 34.04mm) 1.650 L x 1.370 W (41.90mm x 34.80mm) 1.650 L x 1.375 W (41.91mm x 34.93mm) 1.654 L x 1.496 W (42.00mm x 38.00mm) 1.693 L x 1.378 W (43.00mm x 35.00mm) 1.700 L x 1.200 W (43.18mm x 30.48mm) 1.730 L x 1.480 W (43.94mm x 37.59mm) 1.750 L x 1.250 W (44.45mm x 31.75mm) 1.752 L x 1.252 W (44.50mm x 31.80mm) 1.969 L x 1.575 W (50.00mm x 40.00mm) 2.000 L x 1.440 W (50.80mm x 36.58mm) 2.060 L x 1.250 W (52.32mm x 31.75mm) 2.250 L x 4.030 W (57.15mm x 102.36mm) 2.380 L x 1.350 W (60.45mm x 34.29mm) 2.380 L x 1.380 W (60.45mm x 35.05mm) 2.500 L x 3.150 W (63.50mm x 80.01mm) 2.500 L x 3.328 W (63.50mm x 84.53mm) 2.750 L x 2.500 W (69.85mm x 63.50mm) 2.810 L x 1.000 W (71.37mm x 25.40mm) 2.810 L x 1.350 W (71.37mm x 34.29mm) 2.810 L x 1.460 W (71.37mm x 37.08mm) 2.810 L x 1.500 W (71.37mm x 38.10mm) 2.813 L x 1.560 W (71.45mm x 39.62mm) 2.875 L x 1.900 W (73.02mm x 48.26mm) 2.880 L x 1.740 W (73.15mm x 44.20mm) 3.000 L x 2.465 W (76.20mm x 62.61mm) 3.000 L x 2.500 W (76.20mm x 63.50mm) 3.120 L x 2.500 W (79.25mm x 63.50mm) 3.125 L x 3.250 W (79.38mm x 82.55mm) 3.125 L x 3.280 W (79.38mm x 83.31mm) 3.125 L x 3.325 W (79.38mm x 84.46mm) 3.125 L x 3.350 W (79.38mm x 85.09mm) 3.125 L x 3.810 W (79.38mm x 96.77mm) 3.169 L x 1.752 W (80.50mm x 44.50mm) 3.250 L x 1.500 W (82.55mm x 38.10mm) 3.250 L x 1.630 W (82.55mm x 41.40mm) 3.250 L x 1.687 W (82.55mm x 42.85mm) 3.250 L x 1.750 W (82.55mm x 44.45mm) 3.250 L x 2.085 W (82.55mm x 52.96mm) 3.250 L x 2.360 W (82.55mm x 59.94mm) 3.250 L x 2.500 W (82.55mm x 63.50mm) 3.280 L x 2.350 W (83.31mm x 59.69mm) 3.375 L x 2.385 W (85.73mm x 60.58mm) 3.438 L x 4.300 W (87.33mm x 109.22mm) 3.500 L x 2.500 W (88.90mm x 63.50mm) 3.500 L x 3.130 W (88.90mm x 79.50mm) 3.686 L x 3.125 W (93.62mm x 79.38mm) 3.690 L x 1.860 W (93.73mm x 47.24mm) 3.690 L x 2.000 W (93.73mm x 50.80mm) 3.710 L x 2.400 W (94.23mm x 60.96mm) 3.750 L x 2.500 W (95.25mm x 63.50mm) 3.750 L x 2.805 W (95.25mm x 71.25mm) 3.750 L x 3.090 W (95.25mm x 78.49mm) 3.750 L x 3.130 W (95.25mm x 79.50mm) 3.750 L x 3.320 W (95.25mm x 84.33mm) 3.750 L x 3.594 W (95.25mm x 91.29mm) 3.750 L x 3.936 W (95.25mm x 99.97mm) 3.750 L x 4.020 W (95.25mm x 102.11mm) 3.750 L x 5.125 W (95.25mm x 130.18mm) 3.750 L x 5.625 W (95.25mm x 142.88mm) 3.756 L x 5.580 W (95.40mm x 141.73mm) 3.760 L x 2.520 W (95.50mm x 64.01mm) 3.786 L x 4.049 W (96.16mm x 102.84mm) 3.880 L x 3.310 W (98.55mm x 84.07mm) 4.000 L x 2.100 W (101.60mm x 53.34mm) 4.000 L x 3.130 W (101.60mm x 79.50mm) 4.030 L x 2.250 W (102.36mm x 57.15mm) 4.050 L x 3.050 W (102.87mm x 77.47mm) 4.050 L x 3.136 W (102.87mm x 79.65mm) 4.050 L x 3.150 W (102.87mm x 80.01mm) 4.050 L x 3.465 W (102.87mm x 88.01mm) 4.050 L x 3.715 W (102.87mm x 94.36mm) 4.063 L x 3.125 W (103.20mm x 79.38mm) 4.063 L x 3.450 W (103.20mm x 87.63mm) 4.076 L x 3.170 W (103.53mm x 80.52mm) 4.125 L x 3.985 W (104.77mm x 101.22mm) 4.150 L x 2.880 W (105.41mm x 73.15mm) 4.185 L x 3.125 W (106.30mm x 79.38mm) 4.250 L x 3.130 W (107.95mm x 79.50mm) 4.250 L x 3.750 W (107.95mm x 95.25mm) 4.500 L x 2.360 W (114.30mm x 59.94mm) 4.500 L x 3.750 W (114.30mm x 95.25mm) 4.880 L x 3.750 W (123.95mm x 95.25mm) 4.950 L x 3.750 W (125.73mm x 95.20mm) 4.980 L x 3.750 W (126.49mm x 95.25mm) 5.000 L x 3.750 W (127.00mm x 95.20mm) 5.000 L x 3.750 W (127.00mm x 95.25mm) 5.000 L x 4.250 W (127.00mm x 107.95mm) 5.313 L x 5.250 W (134.95mm x 133.35mm) 7.500 L x 4.380 W (190.50mm x 111.25mm)	- 0.138 (3.50mm) 0.164 (4.16mm) 0.173 (4.40mm) 0.181 (4.60mm) 0.193 (4.90mm) 0.200 (5.08mm) 0.244 (6.20mm) 0.250 (6.35mm) 0.260 (6.60mm) 0.285 (7.24mm) 0.295 (7.50mm) 0.299 (7.60mm) 0.331 (8.40mm) 0.340 (8.64mm) 0.346 (8.80mm) 0.350 (8.89mm) 0.400 (10.16mm) 0.409 (10.40mm) 0.421 (10.70mm) 0.453 (11.51mm) 0.460 (11.68mm) 0.465 (11.80mm) 0.469 (11.90mm) 0.470 (11.94mm) 0.472 (12.00mm) 0.480 (12.19mm) 0.485 (12.32mm) 0.488 (12.40mm) 0.490 (12.45mm) 0.500 (12.70mm) 0.530 (13.46mm) 0.543 (13.80mm) 0.551 (14.00mm) 0.583 (14.80mm) 0.626 (15.90mm) 0.630 (16.00mm) 0.640 (16.26mm) 0.650 (16.51mm) 0.657 (16.70mm) 0.669 (16.99mm) 0.680 (17.27mm) 0.690 (17.53mm) 0.700 (17.78mm) 0.730 (18.54mm) 0.736 (18.70mm) 0.740 (18.80mm) 0.748 (19.00mm) 0.750 (19.05mm) 0.752 (19.10mm) 0.770 (19.56mm) 0.810 (20.57mm) 0.820 (20.83mm) 0.850 (21.59mm) 0.870 (22.10mm) 0.920 (23.37mm) 0.950 (24.13mm) 1.000 (25.40mm) 1.070 (27.18mm) 1.187 (30.15mm) 1.190 (30.23mm) 1.250 (31.75mm) 1.380 (35.05mm) 1.417 (36.00mm) 1.430 (36.32mm) 1.630 (41.40mm) 1.650 (41.90mm) 1.650 (41.91mm) 1.680 (42.67mm) 1.690 (42.93mm) 1.693 (43.00mm) 1.746 (44.35mm) 1.750 (44.45mm) 1.773 (45.03mm) 1.940 (49.28mm) 2.000 (50.80mm) 2.013 (51.13mm) 2.047 (52.00mm) 2.058 (52.27mm) 2.059 (52.30mm) 2.310 (58.67mm) 2.370 (60.20mm) 2.371 (60.22mm) 2.433 (61.80mm) 2.525 (64.14mm) 2.559 (65.00mm) 2.560 (65.02mm) 2.630 (66.80mm) 2.790 (70.87mm) 2.876 (73.05mm) 2.940 (74.68mm) 3.000 (76.20mm) 3.060 (77.72mm) 3.120 (79.25mm) 3.123 (79.32mm) 3.150 (80.01mm) 3.188 (80.98mm) 3.193 (81.10mm) 3.238 (85.25mm) 3.319 (84.30mm) 3.438 (87.33mm) 3.460 (87.88mm) 3.513 (89.23mm) 3.516 (89.31mm) 3.523 (89.48mm) 3.563 (90.50mm) 3.750 (95.25mm) 3.795 (96.39mm) 3.800 (96.52mm) 3.810 (96.77mm) 3.813 (96.85mm) 3.843 (97.61mm) 3.858 (97.99mm) 3.859 (98.02mm) 3.863 (98.12mm) 3.873 (98.37mm) 4.188 (106.38mm) 4.250 (107.95mm) 4.500 (114.30mm) 4.560 (115.82mm) 4.600 (116.84mm) 4.623 (117.42mm) 4.650 (118.11mm) 4.663 (118.44mm) 4.750 (120.65mm) 4.813 (122.25mm) 5.250 (133.35mm) 6.375 (161.93mm) 7.438 (188.93mm)

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Packaging	Series	ProductStatus	TurnsRatio-Primary:Secondary	Impedance-Primary(Ohms)	Impedance-Secondary(Ohms)	DCResistance(DCR)-Primary	DCResistance(DCR)-Secondary	TransformerType	FrequencyRange	FrequencyResponse	Voltage-Isolation	InsertionLoss	ReturnLoss	PowerLevel	OperatingTemperature	ApprovalAgency	MountingType	Size/Dimension	Height-Seated(Max)
MET-35 TRANSFORMER 600CT:8 4.5MADC Tamura	4,912	11.80	RFQ	Datasheet	Tube	MET	Active	8.66:1	600CT	8	60Ohm	1.5Ohm	Data/Voice Coupling	300Hz ~ 100kHz	±2dB	1000VRMS @ 30 Seconds	-	-	50mW	-20°C ~ 85°C	-	Through Hole	0.409 L x 0.310 W (10.40mm x 7.87mm)	0.465 (11.80mm)
SP-48 TRANSER 7.5K CT/ 12 OHM AUDIO Triad Magnetics	4,367	18.41	RFQ	Datasheet	Bulk	Red-Spec	Active	25:1	7.5kCT	12	796Ohm	2.9Ohm	Audio Coupling	300Hz ~ 100kHz	±2dB	1000VRMS @ 1 Second	-	-	50mW	-40°C ~ 85°C	-	Through Hole	0.410 L x 0.310 W (10.41mm x 7.87mm)	0.465 (11.80mm)
1750E TRANSFORMER TUBE GUITAR AMP Hammond Manufacturing	2,101	44.45	RFQ	Datasheet	Box	1750	Active	32.61:1	8kCT	8	150Ohm, 300Ohm	450mOhm	Push-Pull Audiophile, Ultra-Linear - Tube Output	70Hz ~ 15kHz	±1dB	-	-	-	15W	-	-	Chassis Mount	3.250 L x 2.085 W (82.55mm x 52.96mm)	2.058 (52.27mm)
1627SEA AUDIOPHILE TUBE OUTPUT TRANSFRMR Hammond Manufacturing	930	180.79	RFQ	Datasheet	Box	1600	Active	-	2.5k	4, 8, 16	30Ohm, 47.44Ohm	402mOhm, 502mOhm, 700mOhm	Single Ended Audiophile, Ultra-Linear - Tube Output	20Hz ~ 20kHz	±1dB	2828VDC @ 1 Second	±1dB	-	30W	-	-	Chassis Mount	4.500 L x 3.750 W (114.30mm x 95.25mm)	4.560 (115.82mm)
TY-303P TRANSF 4000 OHM PRI. 0MA DC TEL Triad Magnetics	7,515	5.88	RFQ	Datasheet	Bulk	TY	Active	2.43:1	4k	600	260Ohm	52Ohm	Data/Voice Coupling	300Hz ~ 3.5kHz	±0.5dB	1500VAC	1dB Typ	26dB Typ	-45dB ~ 7dB	-20°C ~ 85°C	-	Through Hole	0.812 L x 0.715 W (20.62mm x 18.16mm)	0.740 (18.80mm)
SP-50 TRANSER 500 CT/ 600 OHM AUDIO Triad Magnetics	4,402	19.92	RFQ	Datasheet	Bulk	Red-Spec	Active	1:1.1	500CT	600	67Ohm	98Ohm	Audio Coupling	300Hz ~ 100kHz	±2dB	1000VRMS @ 1 Second	-	-	50mW	-40°C ~ 85°C	-	Through Hole	0.410 L x 0.310 W (10.41mm x 7.87mm)	0.465 (11.80mm)
102B TRANSFORMER AUDIO 50/1500 Hammond Manufacturing	2,710	23.02	RFQ	Datasheet	Bulk	102	Active	-	50	1.5k	4Ohm	95Ohm	Miniature Epoxy Potted	310Hz	-1dB	100V	1.5dB	-	20mW	-	-	Through Hole	0.570 L x 0.570 W (14.48mm x 14.48mm)	0.480 (12.19mm)
107J TRANSFORMER AUDIO 1KCT/600CT Hammond Manufacturing	3,345	23.80	RFQ	Datasheet	Bulk	107	Active	1.29:1	1kCT	600CT	92Ohm	70Ohm	Miniature Epoxy Potted	300Hz ~ 50kHz	±1.5dB	100VRMS	-	-	150mW	-	-	Through Hole	0.630 L x 0.586 W (16.00mm x 14.88mm)	0.630 (16.00mm)
107R TRANSFORMER AUDIO 10KCT/4KCT Hammond Manufacturing	3,596	23.80	RFQ	Datasheet	Bulk	107	Active	1.58:1	10kCT	4kCT	720Ohm	350Ohm	Miniature Epoxy Potted	300Hz ~ 50kHz	±1.5dB	100VRMS	-	-	150mW	-	-	Through Hole	0.630 L x 0.586 W (16.00mm x 14.88mm)	0.630 (16.00mm)
107P TRANSFORMER AUDIO 10KCT/1.5KCT Hammond Manufacturing	2,945	23.80	RFQ	Datasheet	Bulk	107	Active	2.58:1	10kCT	1.5kCT	700Ohm	122Ohm	Miniature Epoxy Potted	300Hz ~ 50kHz	±1.5dB	100VRMS	-	-	150mW	-	-	Through Hole	0.630 L x 0.586 W (16.00mm x 14.88mm)	0.630 (16.00mm)
107L TRANSFORMER AUDIO 10KCT/3.2 Hammond Manufacturing	2,939	23.80	RFQ	Datasheet	Bulk	107	Active	55.3:1	10kCT	3.2	650Ohm	360mOhm	Miniature Epoxy Potted	300Hz ~ 50kHz	±1.5dB	100VRMS	-	-	150mW	-	-	Through Hole	0.630 L x 0.586 W (16.00mm x 14.88mm)	0.630 (16.00mm)
146K TRANSFORMER AUDIO 1KCT/8 IMPED Hammond Manufacturing	4,861	24.02	RFQ	Datasheet	Bulk	146	Active	-	1kCT	8	56Ohm	700mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
145C TRANSFORMER AUDIO 50K/1.5K IMPED Hammond Manufacturing	2,486	24.02	RFQ	Datasheet	Bulk	145	Active	-	50k	1.5kCT	2.4kOhm	52Ohm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	50mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146C TRANSFORMER AUDIO 48CT/8 IMPED Hammond Manufacturing	4,846	24.02	RFQ	Datasheet	Bulk	146	Active	-	48CT	8	2.4Ohm	700mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
145H TRANSFORMER AUDIO 2K/500CT IMPED Hammond Manufacturing	3,775	24.02	RFQ	Datasheet	Bulk	145	Active	-	2k	500CT	148Ohm	17Ohm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	135mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146H TRANSFORMER AUDIO 500CT/3.2 IMP Hammond Manufacturing	3,338	24.02	RFQ	Datasheet	Bulk	146	Active	-	500CT	3.2	26Ohm	300mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146J TRANSFORMER AUDIO 1KCT/3.2 IMPED Hammond Manufacturing	4,365	24.02	RFQ	Datasheet	Bulk	146	Active	-	1kCT	3.2	56Ohm	300mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146I TRANSFORMER AUDIO 500CT/8 IMPED Hammond Manufacturing	2,813	24.02	RFQ	Datasheet	Bulk	146	Active	-	500CT	8	26Ohm	700mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146S TRANSFORMER AUDIO 4K/8 IMPEDANCE Hammond Manufacturing	3,968	24.02	RFQ	Datasheet	Bulk	146	Active	-	4kCT	8	220Ohm	700mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)
146N TRANSFORMER AUDIO 2K/8 IMPEDANCE Hammond Manufacturing	2,404	24.02	RFQ	Datasheet	Bulk	146	Active	-	2kCT	8	97Ohm	700mOhm	Economical Open Type	150Hz ~ 15kHz	±1dB	-	-	-	700mW	-	-	Chassis Mount	1.630 L x 0.880 W (41.40mm x 22.35mm)	0.810 (20.57mm)