MIL-SPEC · Electronic Components
RB59CE40203B
Resistor, Fixed, Wire Wound
Part NumberRB59CE40203B
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-021-6405 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-0.100 TO 0.100
Terminal TypeWIRE LEAD
Power Dissipation Rating In Watts1.250 FREE AIR
Body Length1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM
Reliability IndicatorNOT ESTABLISHED
Body Diameter0.375 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
Ambient Temp At Full Rated Power125.0 CELSIUS
Cubic Measure0.512 CUBIC INCHES
Ambient Temp In Deg Celsius At Zer145.0
Inclosure TypeENCAPSULATED
Terminal Length1.875 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
ESD/EMICode A — ESD/EMI sensitive item
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 RB59CE40203B available?
We can source RB59CE40203B 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 RB59CE40203B by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RB59CE40203B 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 RB59CE40203B?
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 RB59CE40203B?
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.