ISO 9001:2015 and AS9100D Certified
Serving the Aviation Industry since 1973
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903E Noice Canceling Electret Microphone
P/N 903-1341--with PJ-068 connector
P/N 903-1342--with A4M connector

EMI and RFI protected
Tailored voice response for high articulation per RTCA/D0-170
Immune to aircraft generated magnetic fields

Generating Element Electret condenser
Polar Pattern Differential (close-talking)
Impedance Matches standard aircraft' carbon circuitry
Sensitivity 400 mV ±3 dB for 114 dB SPL (re 20µ pascals)
Power Requirements 8-16V, polarized
Current Drain 8V: 11 mA, 16V: 27 mA
Color & Case Material Fire-retardent black ABS
Dimensions 3.6" L, 2.4" W, 1.4" D
Weight 180 g
Mating Connector PJ-068 (P/N 903-0937)
A4M (P/N 903-0938)
FAA Approval TSO C58a, category B