Ground Loop Isolation Transformer 600Ω

  • RS Stock No. 123-7200
  • Mfr. Part No. A187A12C
  • Manufacturer OEP
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

OEP A187A12C Audio Input Transformers

A187A12C audio input transformers from OEP provide galvanic isolation and are constructed with multiple electrostatic and magnetic shields. They feature a low distortion core and reduce the audio hum and buzz between the ground at the send and receive terminations of the signal.

Proof voltage of 250 Vrms from windings to screen and from primary to secondary
140 pF interwinding capacitance at 20 Hz (primary to screens and secondary to screens)
1.2 mH primary leakage inductance at 1 kHz
2.82 H nominal inductance for each winding

Product Application Information

Suitable applications include ground loop elimination, high common mode rejection and dual electrostatic shields. Another use for these audio transformers is unbalanced line level to balanced microphone outputs.


Do not pass DC through the windings.

Attribute Value
Primary Impedance 600Ω
Secondary Impedance 600Ω
Primary DC Resistance 49.8Ω
Secondary DC Resistance 48.5Ω
Dimensions 29.4 x 25 x 24.2mm
Mounting Type Through Hole
Termination Type PC Pin
Weight 56g
Depth 24.2mm
Length 29.4mm
Width 25mm
Minimum Operating Frequency 10Hz
Construction Enclosed
Maximum Temperature +70°C
Minimum Temperature -20°C
Maximum Operating Frequency 40kHz
Turns Ratio 1:1
Isolation Voltage 250V
Core Type Laminated
7 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 161.19
Per unit
1 - 9
10 +
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