Howell Instruments, Inc. · Electronic Components
C1991
Capacitor, Fixed, Electrolytic
Part NumberC1991
ManufacturerHowell Instruments, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-00-998-5615 (NSN)
Federal Item NameCAPACITOR,FIXED,ELECTROLYTIC
Federal Supply Class5910 — Capacitors
Nonderated Operating Temp-30.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM
Terminal Diameter0.032 INCHES NOMINAL
Body Diameter0.395 INCHES NOMINAL
Tolerance Range Per Section-10.00 TO 150.00 PERCENT SINGLE SECTION
Terminal Length2.000 INCHES NOMINAL
Nonderated Continuous Voltage Rati50.0 DC SINGLE SECTION
Electrical PolarizationPOLARIZED
Anode TypeETCHED FOIL
Body Length1.062 INCHES NOMINAL
Schematic Diagram DesignatorELECTRODE(S) GROUNDED TO CASE, W/GND TERMINAL
Capacitance Value Per Section35.000 MICROFARADS SINGLE SECTION
Vendor Part NumbersTT50M35A
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 C1991 available?
We can source C1991 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 C1991 by Howell Instruments, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C1991 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 C1991?
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 C1991?
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.