Shop — Transformers

300 ohm CT primary, 600 ohm CT secondary
Useful impedance range 150/300 to 600/1200 ohms
100 mW (20 dBm) output, 300 Hz to 100 kHz +/- 0.5 dB
Primary and secondary are interchangeable

600:600 Ohm 1:1 Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101F

600 ohm CT to 600 ohm CT, 1:1 turns ratio
0.100 W output, +/-0.5 dB from 200 Hz to 100 kHz
288 mH inductance per winding, 0.40 mH leakage
Operating temperature -40 to 85 degrees C

1200:600 Ohm Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101H

1200 ohm CT primary, 600 ohm CT secondary
Useful impedance range 600/300 to 2400/1200 ohms
DC resistance 80 ohms primary, 53 ohms secondary
300 Hz to 100 kHz +/- 0.5 dB at 100 mW

2500:600 Ohm Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101J

2500 ohm CT primary, 600 ohm CT secondary
Useful impedance range 1250/300 to 5000/1200 ohms
100 mW, 300 Hz to 100 kHz at 1 kHz 0 dB level
DCR 150.0 ohms (pins 1-3) and 54.00 ohms (pins 6-8), +/-20%

300:50 Ohm Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101P

300 ohm CT primary, 50 ohm CT secondary
Useful impedance range 150/25 to 600/100 ohms
DC resistance 20.4 ohms primary, 4.8 ohms secondary
+/- 0.5 dB from 300 Hz to 100 kHz at 100 mW

600:50 Ohm Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101R

600 ohm CT primary, 50 ohm CT secondary
Useful impedance range 300/25 to 1200/100 ohms
DC resistance 44 ohms primary, 4.7 ohms secondary
300 Hz to 100 kHz +/- 0.5 dB at 100 mW

2500:50 Ohm Center-Tapped PCB Audio Transformer

Hammond Manufacturing · MPN: 101V

2500 ohm CT primary, 50 ohm CT secondary
Useful impedance range 1250/25 to 5000/100 ohms
DC resistance 150.7 ohms primary, 4.9 ohms secondary
+/- 0.5 dB, 300 Hz to 100 kHz at 100 mW

50:1500 Ohm Epoxy Potted PCB Input Transformer

Hammond Manufacturing · MPN: 102B

50 ohm primary to 1500 ohm secondary input transformer
20 mW output, 1.5 dB insertion loss
-1 dB low frequency roll-off at 310 Hz
DCR 4 ohms primary, 95 ohms secondary (+/- 15%)

600:1500 Ohm Epoxy Potted PCB Input Transformer

Hammond Manufacturing · MPN: 102D

600 ohm primary to 1500 ohm secondary input transformer
20 mW output rating
1.5 dB insertion loss; -1 dB at 310 Hz
DCR 43 ohms primary, 85 ohms secondary (+/- 15%)

2000:500 Ohm CT Interstage PCB Audio Transformer

Hammond Manufacturing · MPN: 102H

Interstage: 2000 ohm primary to 500 ohm CT secondary
Up to 5.6 mA primary DC
Bifilar-wound center-tapped secondary for balance
20 mW output, 1.5 dB insertion loss, 310 Hz -1 dB

6000:2000 Ohm CT Interstage PCB Audio Transformer

Hammond Manufacturing · MPN: 102J

Out of StockSave 50%

Interstage: 6000 ohm primary, 2000 ohm CT secondary
2.8 mA max primary DC
Bifilar center-tapped secondary
20 mW output, 1.5 dB insertion loss

Ships when back in stock

10k:2k Ohm CT Interstage PCB Audio Transformer

Hammond Manufacturing · MPN: 102K

Interstage: 10000 ohm primary to 2000 ohm CT secondary
2.5 mA max primary DC
Bifilar-wound center-tapped secondary
20 mW, 1.5 dB insertion loss, -1 dB at 310 Hz

150:80k Ohm Epoxy Potted PCB Input Transformer

Hammond Manufacturing · MPN: 104B

150 ohm primary to 80000 ohm secondary input transformer
5 mW, 60 Hz - 20 kHz at 1 kHz 0 dB level
1 dB insertion loss; -1 dB roll-off at 60 Hz
Sealed black epoxy meeting MIL-T-27 (Grade 5, Class S) conditions

104D Audio TX Matching Potted

Hammond Manufacturing · MPN: 104D

Out of Stock

RoHS and REACH compliant
Genuine Hammond Manufacturing part, sold by an authorized partner

Call for Price

10k:2k Ohm CT 35 mW Interstage Audio Transformer

Hammond Manufacturing · MPN: 104H

$22.05$44.08Business pricing available

Interstage: 10000 ohm primary, 2000 ohm CT secondary
35 mW output, 1 dB insertion loss
3.2 mA max primary DC
-1 dB low frequency roll-off at 200 Hz

20k:1k Ohm CT Interstage PCB Audio Transformer

Hammond Manufacturing · MPN: 104K

$22.05$44.08Business pricing available

Interstage: 20000 ohm primary, 1000 ohm CT secondary
35 mW output with 1 dB insertion loss
3.2 mA max primary DC
-1 dB at 200 Hz low frequency roll-off

25k:600 Ohm CT Interstage PCB Audio Transformer

Hammond Manufacturing · MPN: 104L

$22.05$44.08Business pricing available

Interstage: 25000 ohm primary to 600 ohm CT secondary
2 mA max primary DC
35 mW output, 1 dB insertion loss
-1 dB roll-off at 200 Hz

500:3.2 Ohm CT-Primary Potted Output Transformer

Hammond Manufacturing · MPN: 104Q

Output: 500 ohm CT primary to 3.2 ohm secondary
500 mW output rating
6 mA max primary DC
1 dB insertion loss, -1 dB at 200 Hz

500:8 Ohm CT-Primary Potted Output Transformer

Hammond Manufacturing · MPN: 104R

Output: 500 ohm CT primary to 8 ohm secondary
500 mW output
6 mA max primary DC
1 dB insertion loss; 200 Hz -1 dB roll-off

600:150 Ohm CT 500 mW Potted Output Transformer

Hammond Manufacturing · MPN: 104S

Output: 600 ohm CT primary to 150 ohm CT secondary
500 mW output, 1 dB insertion loss
6 mA max primary DC
-1 dB low frequency roll-off at 200 Hz

600:150 Ohm CT Output Transformer, Long Version

Hammond Manufacturing · MPN: 104SL

$25.44$50.85Business pricing available

Long version of the 104S output transformer
600 ohm CT primary to 150 ohm CT secondary
500 mW output, 1 dB insertion loss
6 mA max primary DC

50k:1500 Ohm CT Epoxy Potted Input Transformer

Hammond Manufacturing · MPN: 106C

$27.15$54.27Business pricing available

Input: 50000 ohm primary to 1500 ohm CT secondary
10 mW output, 1 dB insertion loss
+/-1.0 dB from 215 Hz to 20 kHz at 10 dBu (drawing)
27 H primary inductance, 167.28 mH leakage

600:600 Ohm CT-Primary 500 mW Input Transformer

Hammond Manufacturing · MPN: 106E

Input: 600 ohm CT primary to 600 ohm secondary
500 mW output, 1 dB insertion loss
+/-1 dB, 150 Hz to 20 kHz at full power
Up to 9 mA primary DC

600:600 Ohm Dual Center-Tapped Input Transformer

Hammond Manufacturing · MPN: 106EE

Out of StockSave 50%

Input: 600 ohm CT primary to 600 ohm CT secondary
Center taps on both windings, bifilar wound
500 mW output, 1 dB insertion loss
9 mA max primary DC