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Electret Condenser Microphone Cartridge, Mic Element Various, Cardioid and Omni

EUR 1,69 Buy It Now 17d, EUR 4,47 Shipping, 30-Day Returns

Seller: vila_restor (32.699) 99.8%, Location: Southampton, Ships to: Worldwide, Item: 120807337827 Electret Condenser Microphone Cartridge, Mic Element Various Types This is one item of new condenser microphone element of varying type as shown in the variation pictures. WM-55A103 is a directional cardioid type. WM-55A103 is a genuine Panasonic type and I've shown the factory packaging and lot codes in the secondary pictures. There were helpful links to the pdf datasheets for all the mics below which covered typical electrical connections etc. Ebay in their wisdom have banned access to such helpful hard work from their listings. Generally you need a low noise d.c. supply voltage between 1.5V and 10V and a bias resistor and d.c. blocking capacitor as specified. The resistor and the microphone broadly set the output impedance. WM-55A103 specifies a 680 Ohm resistor at 1.5V supply voltage, though you can go for higher voltages in an attempt to get lower noise. WM-55A103 has less than 680 Ohm output impedance. For the omni generic type, a 2.2K bias resistor and 2V would be typical. In addition there are various good quality mics from PUI which are widely used as replacements for the obsolete Panasonic elements, and the reported frequency response curves are more convincing than the idealised straight-line Panasonic graphs. The POM2735 and POM3535 6mm diameter types are electrically similar and about the same size a the WM-61A with the same sensitivity. The POM2735 is 2.7mm high and -35dB sensitivity and the POM3535 is 3.5mm high and -35dB. The various suffixes indicate the different connection types which you can see in the pictures. One is available with internal 10pf and 33pF capacitors for GSM band TDMA noise filtering. PUI ANM-5254L-R Headline Specs Directivity: Noise Cancelling Sensitivity: -54dB +/-4dB Standard Supply Voltage: 1.5V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 680 Ohm S/N ratio minimum: 60dB Diameter: 9.7mm Height: 5.2mm Connection type: solder pads AOM-6738L-R Headline Specs Directivity: Omni-Directional Sensitivity: -38dB +/-3dB Standard Supply Voltage: 1.5V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 9.7mm Height: 6.7mm Connection type: solder pads PUI AUM-5047L Headline Specs Directivity: Uni-Directional Sensitivity: -47dB +/-4dB Standard Supply Voltage: 1.5V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 680 Ohm S/N ratio minimum: 55dB Diameter: 9.7mm Height: 5.0mm Electret Type: Back Electret Connection type: solder pads PUI AUM-5247L Headline Specs Directivity: Uni-Directional Sensitivity: -47dB +/-4dB Standard Supply Voltage: 1.5V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 680 Ohm S/N ratio minimum: 55dB Diameter: 9.7mm Height: 5.2mm Connection type: solder pads POM3546L-R Headline Specs Directivity: Omni-Directional Sensitivity: -46dB +/-3dB Standard Supply Voltage: 1.5V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 6.0mm Height: 3.5mm Connection type: solder pads POM2735P-R Headline Specs Directivity: Omni-Directional Sensitivity: -35dB +/-3dB Standard Supply Voltage: 3V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 6.0mm Height: 2.7mm Connection type: PCB pins POM3535L-3-R Headline Specs Directivity: Omni-Directional Sensitivity: -35dB +/-3dB Standard Supply Voltage: 3V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 6.0mm Height: 3.5mm Connection type: solder pads Internal Caps: 10pF and 33pF for GSM TDMA noise filtering POM3535P-3-R Headline Specs Directivity: Omni-Directional Sensitivity: -35dB +/-3dB Standard Supply Voltage: 3V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 6.0mm Height: 3.5mm Connection type: PCB pins POM 3535L-3-LW100-R Headline Specs Directivity: Omni-Directional Sensitivity: -35dB +/-3dB Standard Supply Voltage: 3V Max Supply Voltage: 10V Current Consumption Max: 0.5mA Impedance: 2.2K Ohm S/N ratio minimum: 60dB Diameter: 6.0mm Height: 3.5mm Connection type: 100mm flying leads UK postage is charged at a low, fixed price for any number of different items from any listing. Overseas postage is a low fixed amount for any number of different items from any listing. If in doubt, please use the shopping basket on ebay.uk or the "request a final total" button during payment. Paypal payment is welcomed. I am happy to ship worldwide by small packet airmail. Please check my "Post and Dispatch" and "Useful Components" Ebay shop pages for some genuinely useful information and other available parts. I am also no longer allowed to link you to these pages directly from here due to Ebay stupidity. Brand: Unbranded/Generic, MPN: condenser

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