Vishay · Electronic Components
SFH691AT
OPTOCOUPLER, TRANSISTOR, 3.75KV, SOP-4
Part NumberSFH691AT
ManufacturerVishay
LifecycleStocked
AvailabilityAvailable to order — request a quote
Specifications
RohscompliantYES
Hazardousfalse
RohsphthalatescompliantYES
Isolation Voltage3.75 kV
Product Range-
IscanonicalY
SvhcNo SVHC (07-Nov-2024)
Collector Emitter Voltage V Br Ceo70 V
Ctr Min50 %
Forward Current If Max50 mA
ProducttraceabilityNo
UseccnUnknown
No Of Pins4 Pins
No Of Channels1 Channel
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
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is SFH691AT available?
We can source SFH691AT 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 SFH691AT by Vishay obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SFH691AT 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 SFH691AT?
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 SFH691AT?
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.