Instruments and Flight Research · Electronic Components
120-90DF
Relay, Thermal
Part Number120-90DF
ManufacturerInstruments and Flight Research
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-615-5739 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Overall Height2.500 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S)
Heater Voltage Rating In Volts120.0
Contact Maximum Voltage Rating In120.0 AC
Overall Length1.375 INCHES NOMINAL
Heater Power Rating In Watts4.4
Delay Time In Seconds90.0 FIXED OPERATE NOMINAL
Terminal Type And Quantity8 WIRE HOOK
Overall Width1.000 INCHES NOMINAL
Contact ArrangementSINGLE POLE, DOUBLE THROW
Contact Maximum Current Rating In3.0 AC
Vendor Part NumbersL218875-2
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 120-90DF available?
We can source 120-90DF 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 120-90DF by Instruments and Flight Research obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 120-90DF 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 120-90DF?
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 120-90DF?
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.