Siemens · Electronic Components
B1-C-145
Arrester, Electrical Surge
Part NumberB1-C-145
ManufacturerSiemens
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-066-3709 (NSN)
Federal Item NameARRESTER,ELECTRICAL SURGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Body MaterialCERAMIC OR GLASS
Overall Diameter0.380 INCHES MAXIMUM
Line To Ground Voltage100.000 VOLTS NOMINAL
Mounting MethodTERMINAL
Mounting ConfigurationTWO LEADS AXIALLY LOCATED; 0.789 IN. LONG 0.032 IN. DIAMETER
Terminal TypeWIRE LEAD
Terminal Quantity2
Breakdown Voltage145.000 VOLTS NOMINAL
Usage DesignINDOOR
Arrester TypeAIR GAP
Overall Length0.284 INCHES MAXIMUM
Vendor Part Numbers412039, 442731, 104535-003
Cancelled NSN5920-01-303-0542 (cancelled)
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 B1-C-145 available?
We can source B1-C-145 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 B1-C-145 by Siemens obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B1-C-145 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 B1-C-145?
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 B1-C-145?
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.