Primo EM172-Z1 Microphone Capsule

  • Omni directional (non-directional)
  • Signal to Noise ratio 80dB (Self Noise 14dBA)
  • Available as single capsules , 2 matched or 4 matched
  • Also available with short wires pre-soldered
  • Sensitivity -28 dB (+/- 3dB at 1kHz, 0dB=1V/Pa)
  • Operating Voltage 3 V (2-10 V)
  • Maximum input Sound Pressure Level 119 dB
  • Diameter 10 mm, depth 4.5 mm, Weight 0.9 grammes.
  • Primo EM 172 Z-1 Data sheet

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£ 10.50

  • 2 Matched
  • Single
  • 4 matched

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Ultra low noise - High Sensitivity - Wide Dynamic range - Omni Directional  *Available as single capsules, matched pairs (2) or 4 matched

Superb quality electret condenser mic capsule, its extraordinarily low noise and high sensitivity makes this ideal for recording nature sounds, backgrounds and ambiences.

Primo EM 172 Z-1 Data sheet

These blogs give helpful information and examples of how to use the Primo EM172 capsules.

Should I use an EM172-Z1 or EM173?

The EM172-Z1 and EM173 are physically identical, they share the same housing and diaphragm.

  • The EM172 has a 2 wire connection and is the easiest to use, it can be wired directly directly to most domestic recorders which have 3.5 mm microphone sockets and supply plug in power.
  • The EM173 has a 3 wire connection, its the 3 wire version of the EM172. It has no internal resistor from the source to ground, if you add a 100 ohm resistor between source and ground on the EM173 its identical to the EM172, of course you can select a higher value for less sensitivity.

Soldering information:

  • These electret capsules have solder pads for electrical connection.
  • The FET is mounted within the case and can be damaged by overheating or over voltage.
  • We recommend use of a low power or temperature controlled soldering iron (for instance 18 watts) and to keep contact of the iron to the pad as brief as possible.
  • We also supply the capsules with presoldered wires item FC012 etc


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