Coupling between galvanically isolated coils is usually the desired characteristic of transformers. They range from miniature devices for low power signal applications to larger isolation transformers for mains 50/60Hz or switch mode power applications.

The types below are merely examples taken from our standard range, but do not limit what we can do in Full Custom or 'build-to-print'. Please contact us with your exact requirements.


Current Transformers

B5051 10 Amp / 1 Volt
B5051.1 10 Amp / 1 Volt (Ruggedized)
B5051.3 5 Amp / 1 Volt

HDSL Transformers

B5045 1168 kbps 2000V Isolation (Matched to Brooktree Bt8952)
B5046 786 kbps 2000V Isolation (Matched to Brooktree Bt8952)
B5047 1168 kbps 2000V Isolation (Matched to Brooktree Bt8921)
B5048 784 kbps 2000V Isolation (Matched to Level One SK70704)
B5057 784 kbps 2000V Isolation  (Matched to Level One SK70704)
B5058 1168 kbps 2000V Isolation (Matched to Level One SK70704)
B5107 416 kbps 6500V Isolation (Matched to Brooktree Bt8970)

ISDN and E1/T1 Transformers

02840 E1/T1
02905 E1, 75 Ohm or 120 Ohm, Output
02908 E1, Input, Reinforced Insulation
02912 E1, Output, Supplementary Insulation
02920 E1, Input
02921 U Interface with 30mA DC
02927 T1, Input
02930 E1/T1 Reinforced Insulation
02932 U Interface with 50mA DC
02933 U Interface with 20mA DC
B5001 2Mbps Very Low Profile
B5002 2Mbps Very Low Profile
B5004 ISDN S-Interface Transformer
B5022 64 KBPS 1:1:1 Encapsulated
B5023 64 KBPS 1:1+0.24
B5025 128kbps 1:1+0.24
B5026 128kbps 1:1+1
B5077 8Mbps 1:1:1 75 Ohm
B5097 SMD 50 Ohm 2Mbps
B5098 SMD 100 Ohm 2Mbps
B5425 E1/T1 G.703 Balun 120=CE=A9/75=CE=A9
P2030 2Mbps High Isolation
P2031 2Mbps High Isolation
P2231 2Mbps High Isolation
P2638 2Mbps High Isolation

Pulse Transformers

B5049 8kV Impulse Isolation Transformer
B5118 1:1:1 Pulse Transformer
B5257 2CT:1 (76614/1 equivalent)
B5258 1CT:1 (76614/3 equivalent)
B5265 4:1 (76610/1 equivalent)
B5268 1:1 (76601/1 equivalent)

Data over Mains/Powerline Carrier Transformers

B5050 125kHz Tuneable
B5073 Very High Isolation (Low Cost) / Application Notes
P1207 Very High Isolation

Power across PSTN barrier Transformers

P1682 High Isolation 270mW Rated / Application Notes
P2904 Power Transfer Transformer
B5036 Switch Mode Transformer
B5160 SMP Transformer - Intrinsically Safe
B5180 SMP Transformer - Intrinsically Safe

Audio Transformers

03138 600 Ohm with 120mA DC
B5104 600 Ohm : 600 Ohm Screened
B5105 10 kOhm : 10 kOhm Screened
B5108 600 Ohm C.T.: 600 Ohm C.T. Screened
B5109 10 kOhm C.T.: 10 kOhm C.T. Screened
B5148 1 : 0.5 + 0.5 Screened
B5169 1 : 0.5 + 0.5 Screened

Digital Audio Transformers

B5229 1:1 wideband with screen
B5274 1:2 wideband with screen

High Impedance Pick-Off Transformers

P1487 Pick-Off Transformer 3:1 impedance match
P1910 High Isolation Low Profile
P2647 High Impedance Shunt Line Drive Transformer

600 ohm Line Matching Transformers

00214 600 Ohm, Low Insertion Loss
B5031 600 Ohm:600 Ohm Low Insertion Loss
B5081 600 Ohm:600 Ohm Small Footprint
B5127 600 Ohm:600 Ohm Wet (40mA Min)
P1201 600 Ohm:600 Ohm C.T
P1312 Low Profile Line Match Transformer
P1318 600 Ohm Wet Transformer
P2281 Microprofile ine Matching Transformer

Cross impedance and <600 ohm line matching Transformers

B5003.5 120 Ohm 1:1
P1001 High Isolation Baseband Transformer
P1208 High Isolation 600 Ohm:140 Ohm Coupling
P1524 300 Ohm:600 Ohm C.T
P2697 Low Profile Signal Transformer 62 Ohm / Application Notes

Loop Control Transformers

804194 Loop Control Transformer 145-270uH
804195 Loop Control Transformer 259-431uH

Transducer Drive Transformers

B5167 Transducer Driver Transformer 6:1 ratio
B5204 Transducer Driver Transformer 4.05:1 ratio

Intrinsically Safe Transformers

B5160 SMP Transformer - Intrinsically Safe
B5180 SMP Transformer - Intrinsically Safe
B5201 Line Txfr 600: 600 ohm Intrinsically Safe
B5202 Line Txfr 600: 600 ohm c.t. Intrinsically Safe

SMPS Transformers

03015 Push-Pull, 5V to 15V
B5089 Step-Up Switched Mode
B5138 Flyback Transformer

Video 'braid breaker' Transformer

B5184.1 75 ohm Braid Breaker Transformer

50Hz/60Hz Transformers

02847 120 / 240V, 8V+8V, 4VA
B5052 6V - 6V Isolation Transformer

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