Fairchild Semiconductor · Electronic Components
4027B
CD4000-series CMOS dual JK flip-flop
Part Number4027B
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5962-01-108-8046 (NSN)
Federal Item NameMICROCIRCUIT,DIGITAL-LINEAR
Operating Temp Range-55.0 TO 105.0 CELSIUS
Storage Temp Range-55.0 TO 125.0 CELSIUS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Design Function1 CONVERTER, RESOLVER TO DIGITAL
Enclosure ConfigurationDUAL-IN-LINE
Enclosure MaterialCERAMIC AND GLASS
Terminal Surface TreatmentSOLDER
Features ProvidedHYBRID
Input Circuit Pattern4 INPUT
Body Width2.625 INCHES NOMINAL
Federal Supply Class5962 — Microcircuits, Electronic
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 4027B available?
We can source 4027B 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 4027B by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4027B 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 4027B?
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 4027B?
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.