Honeywell · Electronic Components
21B18-1B
Regulator, Voltage
Part Number21B18-1B
ManufacturerHoneywell
AvailabilityAvailable to order — request a quote
Specifications
NSN6110-00-782-7193 (NSN)
Federal Item NameREGULATOR,VOLTAGE
Federal Supply Class6110 — Electrical Control Equipment
Input Current TypeAC
Input Voltage Rating In Volts208.0 NOMINAL
Electronic Device TypeTRANSISTOR
Mounting MethodTHREADED HOLE(S) OR UNTHREADED HOLE(S)
Mounting Hole Quantity4
Input Frequency Rating In Hertz420.0 NOMINAL
Overall Length12.750 INCHES NOMINAL
Regulation Percent1.00
Enclosure FeatureENVIRONMENTAL PROOF
Input PhaseTHREE
Regulation MethodELECTRONIC
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 21B18-1B available?
We can source 21B18-1B 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 21B18-1B by Honeywell obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21B18-1B 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 21B18-1B?
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 21B18-1B?
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.