Description
Microphone Bridging Transformer VTXMICB23
1:1:1:1 150(Ω) 9dBu
High performance Microphone Bridging Transformer VTXMICB23 – Used in audio applications to connect a microphone to an audio input without heavily loading the microphone’s output. It’s designed to “bridge” the connection by presenting a high impedance to the microphone while driving the input stage of the connected device effectively.
- Input +11dBu max (20Hz) <1%THD
- Fitted with multiple electrostatic screens
- Low distortion Mu-metal core
- Mu-metal screening can reduces electrical noise by up to 30dB
- Insulation resistance:
- Winding to winding: 500VDC, 50M(Ω) min
- Windings to screens: 500VDC, 50M(Ω) min
- Operating temperature range: 0 to +70 C
- Storage temperature range: -25 C to +120 C
- Chassis Mounting
Transformer Data Sheet – Click to open and DOWNLOAD
Electrical characteristics
Specification (test circuit 1):
Turns ratio: 1:1:1:1
DC resistance (Ω+/-15%)
- Primary: 39
- Secondary 1: 66
- Secondary 2: 70
- Secondary 3: 74
- Input impedance (Ω): 390 (typ.) @ 1kHz
- Output impedance (Ω): 255 (typ.) @ 1kHz
- Frequency response: 16Hz – 60kHz (+/-0.2dB)
- Maximum input @ 20Hz, <1% THD: +16dBu
- Insertion loss: 1dB (typ.)
- Leakage inductance (1 – 2) @ 1kHz: 650uH (typ.)
Capacitance @ 10kHz, 0.1V:
- Cp-scr: 350pF (typ.)
- Cs1-scr1: 260pF (typ.)
- Cs2-scr2: 280pF (typ.)
- Cs3-scr3: 285pF (typ.
