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Fairchild Optoelectronics Group  · Switches

4N39

Triac & SCR Output Optocouplers DIP-6 PHOTO SCR

Part Number4N39
ManufacturerFairchild Optoelectronics Group
AvailabilityAvailable to order — request a quote

Specifications

Cancelled NSN5980-01-106-8220 (cancelled)
NSN Cancelled Date10-DEC-2002
Federal Item NameCOUPLER,OPTOELECTRONIC
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RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant

Frequently asked

Is 4N39 available?
We can source 4N39 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 4N39 by Fairchild Optoelectronics Group obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4N39 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 4N39?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 4N39?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.