Pro Audio 577Ω Mic. Splitting Transformer

  • RS Stock No. 123-7199
  • Mfr. Part No. A187A11C
  • Manufacturer OEP
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
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

Note

Do not pass DC through the windings

Specifications
Attribute Value
Primary 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
Isolation Voltage 250V
Maximum Temperature +70°C
Construction Enclosed
Maximum Operating Frequency 50kHz
Core Type Laminated
Minimum Operating Frequency 15Hz
Turns Ratio 1:1:1
Minimum Temperature 0°C
On back order for despatch 22/10/2020, delivery within 7 working days from despatch date.
Price (ex. GST) Each
$ 58.38
(exc. GST)
$ 64.22
(inc. GST)
units
Per unit
1 - 9
$58.38
10 +
$56.35
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