Raytheon Company · Electronic Components
257989-40
Capacitor, Fixed, Electrolytic
Part Number257989-40
ManufacturerRaytheon Company
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-01-071-3155 (NSN)
Federal Item NameCAPACITOR,FIXED,ELECTROLYTIC
Federal Supply Class5910 — Capacitors
Dc Leakage At Reference Temp3.000 MICROAMPERES
Capacitive Electrode MaterialTANTALUM
Terminal Surface TreatmentSOLDER
Nonderated Continuous Voltage Rati35.0 DC SINGLE SECTION
Terminal Diameter0.025 INCHES NOMINAL
Terminal Length1.250 INCHES MINIMUM
Body Length1.110 INCHES MAXIMUM
Case Insulation MaterialPLASTIC
Schematic Diagram DesignatorELECTRODE(S) GROUNDED TO CASE, W/GND TERMINAL
Body Diameter0.422 INCHES MAXIMUM
Impedance At Minimum Operating Tem24.0
Vendor Part Numbers40SW507D035M1X0FM
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 257989-40 available?
We can source 257989-40 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 257989-40 by Raytheon Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 257989-40 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 257989-40?
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 257989-40?
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.