- RS Stock No.:
- 123-7202
- Mfr. Part No.:
- A187A14C
- Brand:
- OEP
- RS Stock No.:
- 123-7202
- Mfr. Part No.:
- A187A14C
- Brand:
- OEP
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- GB
Product Details
OEP A187A14C Microphone Transformers
A187A14C microphone transformers from OEP are ideal for signal splitting and impedance matching. They are encapsulated in a mumetal can and constructed with multiple electrostatic screens. These audio transformers provide dual primary impedance for matching 150 Ω to 15 kΩ.
750 mH primary inductance at 1 kHz, 0.1v
44 pF interwinding capacitance at 20 kHz (primary 1 to screens)
64 pF interwinding capacitance at 20 kHz (primary 2 to screens)
109 pF interwinding capacitance at 20khz (secondary to screens)
12 pF interwinding capacitance at 20 kHz (primaries to secondary when primaries are in series)
44 pF interwinding capacitance at 20 kHz (primary 1 to screens)
64 pF interwinding capacitance at 20 kHz (primary 2 to screens)
109 pF interwinding capacitance at 20khz (secondary to screens)
12 pF interwinding capacitance at 20 kHz (primaries to secondary when primaries are in series)
Note
Do not pass DC through windings
Specifications
Attribute | Value |
---|---|
Primary Impedance | 150 Ω, 600 Ω |
Secondary Impedance | 10kΩ |
Primary DC Resistance | 38Ω |
Secondary DC Resistance | 1.085kΩ |
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 | 500V |
Maximum Operating Frequency | 40kHz |
Construction | Enclosed |
Maximum Temperature | +70°C |
Minimum Operating Frequency | 20Hz |
Turns Ratio | 1+1:8 |
Minimum Temperature | 0°C |
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