Audio Transformers
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Mfr Part #
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Quantity Available
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Price
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Product Status
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Turns Ratio - Primary:Secondary
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Impedance - Primary (Ohms)
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Impedance - Secondary (Ohms)
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DC Resistance (DCR) - Primary
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DC Resistance (DCR) - Secondary
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Transformer Type
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Frequency Range
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Frequency Response
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Voltage - Isolation
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Insertion Loss
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Return Loss
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Power Level
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Operating Temperature
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Approval Agency
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Mounting Type
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Size / Dimension
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Height - Seated (Max)
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Termination Style
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1046 In Stock |
155.36000 |
Active |
- |
5kCT |
4, 8, 16, 70V |
72.11Ohm, 79.35Ohm |
276mOhm, 391mOhm, 464mOhm, 9.304Ohm |
Push-Pull Audiophile, Ultra-Linear - Tube Output |
30Hz ~ 30kHz |
±1dB |
2000V @ 1 Second |
- |
- |
30W |
- |
- |
Chassis Mount |
3.750" L x 2.500" W (95.25mm x 63.50mm) |
3.060" (77.72mm) |
Wire Leads |
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 |
4 In Stock |
146.55000 |
Active |
- |
48, 12/12 |
600, 150/150 |
6Ohm |
70Ohm |
- |
20Hz ~ 20kHz |
±0.5dB |
- |
1dB |
- |
15dB |
- |
- |
Chassis Mount |
1.700" L x 1.200" W (43.18mm x 30.48mm) |
1.650" (41.90mm) |
Wire Leads |
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 |
2 In Stock |
51.78000 |
Active |
32.61:1 |
8.5kCT |
4, 8, 16 |
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) |
Wire Leads |
|
 |
8 In Stock |
23.80000 |
Active |
4.07:1 |
10kCT |
600 |
710Ohm |
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) |
PC Pin |
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4593 In Stock |
3.27000 |
Active |
1:1.033 |
600 |
600 |
36Ohm |
50Ohm |
Data/Voice Coupling |
300Hz ~ 3.5kHz |
±0.5dB |
1500VRMS @ 1 Minute |
1.2dB Max @ 1kHz |
- |
-40dB ~ 7dB |
- |
CSA-C22.2 No. 66-M1988, UL1459 |
Through Hole |
0.799" L x 0.650" W (20.30mm x 16.50mm) |
0.736" (18.70mm) |
PC Pin |
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550 In Stock |
6.44000 |
Active |
1:1 |
600CT |
600CT |
44Ohm |
56Ohm |
Data/Voice Coupling |
300Hz ~ 3.5kHz |
±0.5dB |
1500VRMS @ 1 Minute |
1.4dB Max @ 1kHz |
- |
-45dB ~ 7dB |
- |
CSA-C22.2 No. 66-M1988, UL1459 |
Through Hole |
0.799" L x 0.689" W (20.30mm x 17.50mm) |
0.752" (19.10mm) |
PC Pin |
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1 In Stock |
66.21000 |
Active |
- |
200, 50/50 |
600, 150/150 |
- |
- |
Broadcast Quality |
30Hz ~ 30kHz |
±1dB |
- |
1dB Max |
- |
- |
- |
- |
Through Hole |
1.330" L x 1.640" W (33.78mm x 41.66mm) |
0.850" (21.59mm) |
PC Pin |
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 |
1 In Stock |
151.58000 |
Active |
- |
3.4kCT |
4, 8, 16 |
- |
- |
Push-Pull Audiophile, Ultra-Linear - Tube Output |
30Hz ~ 30kHz |
±1dB |
- |
±1dB |
- |
50W |
- |
- |
Chassis Mount |
4.000" L x 3.130" W (101.60mm x 79.50mm) |
3.810" (96.77mm) |
Wire Leads |
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1568 In Stock |
11.60000 |
Active |
22.4:1 |
1.6kCT |
3.2 |
230Ohm |
1Ohm |
Data/Voice Coupling |
300Hz ~ 100kHz |
±3dB |
500VRMS @ 30 Seconds |
- |
- |
65mW Max @ 300Hz |
-20°C ~ 85°C |
- |
Through Hole |
0.409" L x 0.310" W (10.40mm x 7.87mm) |
0.465" (11.80mm) |
PC Pin |
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1 In Stock |
18.77000 |
Active |
8.62:1 |
10k |
125 |
1.1kOhm |
28Ohm |
Data/Voice Coupling |
300Hz ~ 100kHz |
±2dB |
1000VRMS @ 1 Second |
- |
- |
10mW |
-20°C ~ 85°C |
- |
Through Hole |
0.409" L x 0.310" W (10.40mm x 7.87mm) |
0.465" (11.80mm) |
PC Pin |
|
 |
1 In Stock |
401.82000 |
Active |
- |
1.9kCT |
4, 8, 16 |
- |
- |
Push-Pull Audiophile, Ultra-Linear - Tube Output |
30Hz ~ 30kHz |
±1dB |
- |
±1dB |
- |
280W |
- |
- |
Chassis Mount |
7.500" L x 4.380" W (190.50mm x 111.25mm) |
5.250" (133.35mm) |
Wire Leads |
|
 |
60 In Stock |
27.39000 |
Active |
1:1 |
10kCT |
10kCT |
424Ohm |
426Ohm |
Miniature Epoxy Potted |
300Hz ~ 50kHz |
±1.5dB |
500Vrms |
- |
- |
150mW |
- |
- |
Through Hole |
1.030" L x 0.770" W (26.16mm x 19.56mm) |
0.770" (19.56mm) |
PC Pin |
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 |
8638 In Stock |
3.37850 |
Active |
1:1.27 |
600 |
900 |
36Ohm |
76Ohm |
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 0.700" W (20.62mm x 17.78mm) |
0.740" (18.80mm) |
PC Pin |
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633 In Stock |
4.07000 |
Active |
1:1 |
600 |
470 |
92Ohm |
120Ohm |
Data/Voice Coupling |
300Hz ~ 3.5kHz |
±1dB ~ ±4dB |
1875VRMS @ 1 Second |
2.5dB Max @ 1kHz |
- |
-40dB ~ 4dB |
- |
CSA-C22.2 No. 950-95, UL1950 |
Through Hole |
0.886" L x 0.909" W (22.50mm x 23.10mm) |
0.583" (14.80mm) |
PC Pin |
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8906 In Stock |
87.07000 |
Active |
1:1 |
1k |
1k |
89.7Ohm |
89.7Ohm |
- |
20Hz ~ 20kHz |
±1dB |
500Vrms |
1dB Typ |
20dB Typ |
10dB |
- |
- |
Chassis Mount |
1.250" Dia (31.75mm) |
1.000" (25.40mm) |
Screw Terminal |
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3274 In Stock |
11.71000 |
Active |
1:1 |
135 |
135CT |
10.5Ohm |
10.8Ohm |
Data/Voice Coupling |
300Hz ~ 100kHz |
±2dB |
1500VRMS @ 1 Minute |
- |
- |
50mW |
-20°C ~ 85°C |
- |
Through Hole |
0.409" L x 0.310" W (10.40mm x 7.87mm) |
0.465" (11.80mm) |
PC Pin |
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2 In Stock |
148.73000 |
Active |
- |
6.6kCT |
3.5, 8, 16, 250, 500 |
56.93Ohm, 60.95Ohm |
259mOhm, 364mOhm, 496mOhm, 6.727Ohm, 9.55Ohm |
Push-Pull Audiophile, Ultra-Linear - Tube Output |
30Hz ~ 30kHz |
±1dB |
2000V @ 1 Second |
- |
- |
35W |
- |
- |
Chassis Mount |
3.750" L x 3.130" W (95.25mm x 79.50mm) |
3.810" (96.77mm) |
Wire Leads |
|
5861 In Stock |
8.59380 |
Active |
5:1 |
25kCT |
1kCT |
1.6kOhm |
95Ohm |
Data/Voice Coupling |
300Hz ~ 100kHz |
±2dB |
500VRMS @ 30 Seconds |
- |
- |
30mW |
-20°C ~ 85°C |
- |
Through Hole |
0.409" L x 0.310" W (10.40mm x 7.87mm) |
0.465" (11.80mm) |
PC Pin |
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 |
2 In Stock |
72.39000 |
Active |
- |
4.25kCT |
4, 8 |
82Ohm, 108.3Ohm |
253mOhm, 462mOhm |
- |
70Hz ~ 15kHz |
±1dB |
2000V @ 1 Second |
- |
- |
40W |
- |
- |
Chassis Mount |
2.500" L x 3.150" W (63.50mm x 80.01mm) |
3.319" (84.30mm) |
Wire Leads |
|
 |
1123 In Stock |
17.39000 |
Active |
3.54:1 |
150CT |
12 |
18Ohm |
2.7Ohm |
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) |
PC Pin |
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3996 In Stock |
6.74150 |
Active |
10:1 |
320CT |
3.2 |
35Ohm |
700mOhm |
Data/Voice Coupling |
300Hz ~ 100kHz |
±2dB |
500VRMS @ 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) |
PC Pin |
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1 In Stock |
148.18000 |
Active |
- |
- |
- |
1.18Ohm |
70mOhm, 80mOhm, 6.14Ohm, 46.16Ohm |
- |
- |
- |
120/240VAC |
- |
- |
- |
- |
- |
Chassis Mount |
3.438" L x 4.300" W (87.33mm x 109.22mm) |
4.188" (106.38mm) |
Wire Leads |
|
 |
7591 In Stock |
12.15200 |
Active |
4.48:1:1 |
10k |
2k, 500/500 |
1.05kOhm |
146/168Ohm |
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) |
PC Pin |
|
 |
8549 In Stock |
30.70000 |
Active |
- |
4k |
600CT |
340Ohm |
24Ohm |
Miniature Epoxy Potted |
215Hz |
-1dB |
200V |
1dB |
- |
150mW |
- |
- |
Through Hole |
1.080" L x 0.880" W (27.43mm x 22.35mm) |
0.950" (24.13mm) |
PC Pin |
