Amperite Co Inc. · Electronic Components
3-50A
Resistor, Current Regulating
Part Number3-50A
ManufacturerAmperite Co Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-549-1528 (NSN)
Federal Item NameRESISTOR,CURRENT REGULATING
Federal Supply Class5905 — Resistors
Envelope Type Per Mil E 1ST-14 (4-9) PER SPEC MIL-E-1B
Base TypeOCTAL
Threshold Voltage In Volts48.0
Current Range In Amps+0.27 TO 0.32
Resistive Element Pin Connection2 AND 7
Current TypeAC/DC
Overall Length7.500 INCHES NOMINAL
Nonderated Voltage Rating And Type800.0 AC PEAK FIRST SECTION
Adjustment Device Rotation180.0 DEGREES NOMINAL COUNTERCLOCKWISE
Capacitance Range In Picofarads+15.0 TO 301.5 SECOND SECTION
Mounting Facility Type And Quantit3 THREADED HOLE(S)
Nominal Thread Size0.164 INCHES
Shaft Length0.375 INCHES NOMINAL SINGLE SHAFT
Individual Section Quantity3
Inclosure TypeUNINCLOSED
Adjustment Device Drive Type And Q1 GEARED SHAFT
Terminal Type And Quantity6 TAB, SOLDER LUG
Vendor Part Numbers482973
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 3-50A available?
We can source 3-50A 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 3-50A by Amperite Co Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3-50A 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 3-50A?
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 3-50A?
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.