Lucent Technologies Inc. Corporate Headquarters · Electronic Components
B1-37
Relay, Electromagnetic
Part NumberB1-37
ManufacturerLucent Technologies Inc. Corporate Headquarters
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-244-1551 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Terminal Type And Quantity4 PIN ALL FUNCTIONS
Unthreaded Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Height1.680 INCHES NOMINAL
Nonpile Up Main Contact Arrangemen1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Center To Center Distance Between2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Ratin110.0 AC AND 115.0 DC
Winding Dc Resistance Rating1.1 KILOHMS NOMINAL SINGLE WINDING
Winding Quantity1
Overall Width2.500 INCHES NOMINAL
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 B1-37 available?
We can source B1-37 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 B1-37 by Lucent Technologies Inc. Corporate Headquarters obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B1-37 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 B1-37?
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 B1-37?
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.