Technical Document
Specifications
Brand
OEPPrimary Impedance
577Ω
Secondary Impedance
1 + 1kΩ
Primary DC Resistance
49.8Ω
Secondary DC Resistance
48.5 (Secondary 1) Ω, 50 (Secondary 2) Ω
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
Construction
Enclosed
Maximum Operating Frequency
50kHz
Core Type
Laminated
Minimum Temperature
0°C
Turns Ratio
1:1:1
Maximum Temperature
+70°C
Minimum Operating Frequency
15Hz
Isolation Voltage
250V
Country of Origin
United Kingdom
Product details
OEP A187A11C Microphone Transformers
A187A11C microphone transformers from OEP are ideal for signal splitting and impedance matching. These audio transformers provide two isolated balance outputs when loaded with 1 kΩ. Constructed with multiple electrostatic screens, these dual output microphone transformers have excellent common mode rejection. They are encapsulated in a mumetal screening can.
Proof voltage of 250 Vrms from windings to screen and from primary to secondaries
2.85 H nominal inductance at 1 kHz, 0.1 V
Interwinding capacitance of 180 pF at 1 kHz for primary to screens
Interwinding capacitance of 71 pF for secondary 1 to screens
Interwinding capacitance of 113 pF for secondary 2 to screens
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SR 376.90
Each (ex VAT)
SR 433.44
Each (inc VAT)
1
SR 376.90
Each (ex VAT)
SR 433.44
Each (inc VAT)
1
Technical Document
Specifications
Brand
OEPPrimary Impedance
577Ω
Secondary Impedance
1 + 1kΩ
Primary DC Resistance
49.8Ω
Secondary DC Resistance
48.5 (Secondary 1) Ω, 50 (Secondary 2) Ω
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
Construction
Enclosed
Maximum Operating Frequency
50kHz
Core Type
Laminated
Minimum Temperature
0°C
Turns Ratio
1:1:1
Maximum Temperature
+70°C
Minimum Operating Frequency
15Hz
Isolation Voltage
250V
Country of Origin
United Kingdom
Product details
OEP A187A11C Microphone Transformers
A187A11C microphone transformers from OEP are ideal for signal splitting and impedance matching. These audio transformers provide two isolated balance outputs when loaded with 1 kΩ. Constructed with multiple electrostatic screens, these dual output microphone transformers have excellent common mode rejection. They are encapsulated in a mumetal screening can.
Proof voltage of 250 Vrms from windings to screen and from primary to secondaries
2.85 H nominal inductance at 1 kHz, 0.1 V
Interwinding capacitance of 180 pF at 1 kHz for primary to screens
Interwinding capacitance of 71 pF for secondary 1 to screens
Interwinding capacitance of 113 pF for secondary 2 to screens