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DUAL 12V 20A RELAY

CAT # RLY-650 (3 Reviews) Write a Review

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Product Description
Panasonic (NAIS) ACT512.
Ultra-small automotive relay with two separate coils and sets of SPDT contacts. Rated 20 Amps. 17.4 x 14 x 13.5mm. 10 terminals. PC leads.
WARNING: May cause cancer or reproductive harm.
California Prop. 65
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Customer Reviews (3 Reviews)

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Nice

Reviewer: from SF Bay, CA

Nice little relay for H-bridges, and very quiet. Coils can be low-end driven with 2N3904 so it's easy to interface to Arduino. Datasheet here: https://www.panasonic-electric-works.com/pew/eu/downloads/ds_61205_en_ct.pdf

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Answering a question

Reviewer: from Lancaster, Ohio 43130

The diode shown is there to prevent back EMF (Electro - Magnetic Force) in an inductor that has a current flowing, stopping that current, the inductor produces an opposite voltage, can be hundreds of. The diode shorts this voltage to a diode drop. It also protects the driver circuit (switch, transistor, etc) from impact of the voltage ie does not blow it up. This is a very well accepted method in the industry

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Question About The Schematics

Reviewer: from VICTORIA, BC

I would like to thank the fellow from SF Bay for the link to the schematics. Very good info.
In the drawing, there appears to be a diode across the coil terminals. Wondering if someone could explain that to me.
Thanks!

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