Ohmite Holding · Electronic Components
4K40F3R0
Resistor, Fixed, Wire Wound
Part Number4K40F3R0
ManufacturerOhmite Holding
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-279-2909 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-10.000 TO 10.000
Terminal TypeTAB, SOLDER LUG
Reliability IndicatorNOT ESTABLISHED
Terminal Length0.690 INCHES MAXIMUM
Style DesignatorRADIAL TERMINAL EACH END
Cubic Measure0.215 CUBIC INCHES
Body Length4.000 INCHES NOMINAL
Ambient Temp At Full Rated Power40.0 CELSIUS
Power Dissipation Rating In Watts50.000 FREE AIR
Body Diameter0.690 INCHES MAXIMUM
Inclosure TypeENCAPSULATED
Vendor Part Numbers2656-603, 0400LABZUG, L50J3R0
Cancelled NSN5950-00-169-3305 (cancelled)
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 4K40F3R0 available?
We can source 4K40F3R0 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 4K40F3R0 by Ohmite Holding obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4K40F3R0 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 4K40F3R0?
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 4K40F3R0?
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.