Through Hole Audio Transformer 10 kΩ, 49 kΩ
- RS Stock No.:
- 123-7204
- Mfr. Part No.:
- A187A16C/1
- Brand:
- OEP
Bulk discount available
Subtotal (1 unit)*
£64.24
(exc. VAT)
£77.09
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 5 unit(s) ready to ship
- Plus 15 unit(s) shipping from 21 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 - 9 | £64.24 |
| 10 + | £56.21 |
*price indicative
- RS Stock No.:
- 123-7204
- Mfr. Part No.:
- A187A16C/1
- 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 | 30 Ω, 100 Ω | |
| Secondary Impedance | 10 kΩ, 49 kΩ | |
| Primary DC Resistance | 19Ω | |
| Secondary DC Resistance | 647Ω | |
| 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 | |
| Turns Ratio | 1 C.T :7+10 | |
| Core Type | Laminated | |
| Maximum Operating Frequency | 30kHz | |
| Isolation Voltage | 500V | |
| Maximum Temperature | +70°C | |
| Minimum Temperature | 0°C | |
| Minimum Operating Frequency | 10Hz | |
| Construction | Enclosed | |
| Select all | ||
|---|---|---|
Brand OEP | ||
Primary Impedance 30 Ω, 100 Ω | ||
Secondary Impedance 10 kΩ, 49 kΩ | ||
Primary DC Resistance 19Ω | ||
Secondary DC Resistance 647Ω | ||
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 | ||
Turns Ratio 1 C.T :7+10 | ||
Core Type Laminated | ||
Maximum Operating Frequency 30kHz | ||
Isolation Voltage 500V | ||
Maximum Temperature +70°C | ||
Minimum Temperature 0°C | ||
Minimum Operating Frequency 10Hz | ||
Construction Enclosed | ||
- COO (Country of Origin):
- GB
OEP A187A16C/1 Microphone Transformers
A187A16C/1 microphone transformers from OEP have been designed for matching low output moving coil pickups to balanced valve pre-amplifiers. These audio transformers are ideal for impedance matching and signal splitting. A low distortion core enables low harmonic distortion while multi-layered winding enables improved coupling and reduces leakage inductance.
500uV maximum input voltage
640 mH nominal primary inductance tolerance at 1 kHz, 0.1 V
430 μH typical primary leakage inductance at 1 kHz, 0.1 V
35 pF interwinding capacitance at 20 kHz, 0.1 V (screens earthed)
10 Hz to 30 kHz ±0.5dB frequency response
640 mH nominal primary inductance tolerance at 1 kHz, 0.1 V
430 μH typical primary leakage inductance at 1 kHz, 0.1 V
35 pF interwinding capacitance at 20 kHz, 0.1 V (screens earthed)
10 Hz to 30 kHz ±0.5dB frequency response
Note
Do not pass DC through windings.
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