[4 pc] OptoCoupler-Vactrol analog pure resistive ( Lot Qty: 4 )

Description

If you need larger quantity, please contact seller to increase available units.
OptoCoupler-Vactrol
Lot size: 4
Case: 4 pin 5mm
OptoCoupler, Analog Photocell, High dynamic range
LED - to- photoresistor
Purely resistive output
Huge dynamic range: over 100,000: 1 resistance ratio
Audio Opto Coupler ( NSL 7053)
Used extensively in audio compressors, audio level controls, audio limiters, expanders/noise gates, guitar tremolo effects, guitar amplifiers, and musical instrument effect boxes.
Photocell has light-averaging characteristics, which responds to the envelope of a changing signal.
Inside the black case is a 2 lead photocell (not a photodiode or photo-transistor) and a 2 lead LED. This is why the device finds extensive use in audio applications (photocell instead of photodiode).
The LED requires about 10-16mA current and the resistance of the photocell varies from 150K up to megohms when the LED is off to under 400ohms when the LED is on. New. NOTE: Dot on case marks the cathode (-) lead of the LED.
Purchases can only be changed or cancelled before payment.
Best Genuine USA parts from USA distribution.
Avoid Chinese counterfeit parts and Chinese seller problems!
Transit time 5-7 bus days in USA, however USPS does not guarantee these times, and can exceed them. If you have any time constraints, contact seller before bidding / buying, so we can both come to an agreement.