MIL-SPEC · Electronic Components
5643
Electron Tube
Part Number5643
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5960-00-577-3016 (NSN)
Federal Item NameELECTRON TUBE
Federal Supply Class5960 — Electron Tubes
Nondefinitive Spec Std Data5643 TYPE
Cancelled NSN5960-00-678-6581 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
Principal Circuitry Type Per FunctCRYSTAL BLANK LOCATION NOT OTHERWISE SPECIFIED
Functional Terminal Type And Quant2 PIN GROUND THIRD FUNCTION
Body Width0.230 INCHES MAXIMUM
Reference Frequency Per Function180.0 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Features ProvidedSHOCK RESISTANT
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE
Frequency Band Width Per Function164.00 KILOHERTZ BLANK AND 196.00 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Operating Temp Range-37.0 TO 85.0 CELSIUS
Vibration Resistance Range In Hert+10.0 TO 2000.0
Overall Height0.980 INCHES NOMINAL
Body Length0.890 INCHES MAXIMUM
Vendor Part Numbers917AS6433
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 5643 available?
We can source 5643 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 5643 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5643 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 5643?
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 5643?
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.