Through Hole Audio Transformer 1 + 1kΩ
- RS Stock No.:
- 123-7198
- Mfr. Part No.:
- A187A10C
- Brand:
- OEP
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Subtotal (1 unit)*
£57.21
(exc. VAT)
£68.65
(inc. VAT)
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In Stock
- 2 unit(s) ready to ship
- Plus 25 unit(s) shipping from 06 November 2025
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Units | Per unit |
|---|---|
| 1 - 9 | £57.21 |
| 10 + | £51.49 |
*price indicative
- RS Stock No.:
- 123-7198
- Mfr. Part No.:
- A187A10C
- Brand:
- OEP
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | OEP | |
| Primary Impedance | 140kΩ | |
| Secondary Impedance | 1 + 1kΩ | |
| Primary DC Resistance | 3.2kΩ | |
| Secondary DC Resistance | 314Ω | |
| 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 | |
| Core Type | Laminated | |
| Isolation Voltage | 250V | |
| Turns Ratio | 11.5:1+1 | |
| Minimum Operating Frequency | 10Hz | |
| Maximum Operating Frequency | 25kHz | |
| Minimum Temperature | 0°C | |
| Construction | Enclosed | |
| Maximum Temperature | +70°C | |
Select all | ||
|---|---|---|
Brand OEP | ||
Primary Impedance 140kΩ | ||
Secondary Impedance 1 + 1kΩ | ||
Primary DC Resistance 3.2kΩ | ||
Secondary DC Resistance 314Ω | ||
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 | ||
Core Type Laminated | ||
Isolation Voltage 250V | ||
Turns Ratio 11.5:1+1 | ||
Minimum Operating Frequency 10Hz | ||
Maximum Operating Frequency 25kHz | ||
Minimum Temperature 0°C | ||
Construction Enclosed | ||
Maximum Temperature +70°C | ||
- COO (Country of Origin):
- GB
OEP A187A10C Audio Input Transformers
A187A10C audio input transformers from OEP have multiple electrostatic and magnetic shields and provide galvanic isolation. The A187A10C transformer is a high ratio step down transformer featuring Faraday shielding that reduces hum and stray magnetic interference.
+21.5dbu maximum input level at 20 Hz with >1% distortion
250 Vrms proof voltage from winding to winding and screens to winding
155 mH primary leakage inductance at 1 kHz
42 pF interwinding capacitance at 1 kHz for primary to secondary 1
63 pF interwinding capacitance at 1 kHz for primary to secondary 2
39 pF interwinding capacitance at 1 kHz for primary to shield
250 Vrms proof voltage from winding to winding and screens to winding
155 mH primary leakage inductance at 1 kHz
42 pF interwinding capacitance at 1 kHz for primary to secondary 1
63 pF interwinding capacitance at 1 kHz for primary to secondary 2
39 pF interwinding capacitance at 1 kHz for primary to shield
Product Application Information
These audio input transformers are suitable for long cable runs without HF loss. They can be used for coupling instrument pickups to low impedance microphone inputs and unbalanced line level to balanced microphone outputs.
Note
Do not pass DC through the windings.