Cpi Electron Device Business, Inc. · Electronic Components
BL744
Arrester, Electrical Surge
Part NumberBL744
ManufacturerCpi Electron Device Business, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-538-3862 (NSN)
Federal Item NameARRESTER,ELECTRICAL SURGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Overall Length2.125 INCHES MAXIMUM
Arrester TypeAIR GAP
Mounting ConfigurationMAY BE MTD BY EITHER TERMINAL OF 0.250 IN. DIA 0.500 IN. LONG
Terminal TypeFERRULE
Body MaterialGLASS
Usage DesignINDOOR
Overall Diameter1.020 INCHES MAXIMUM
Line To Ground Voltage1.500 KILOVOLTS NOMINAL
Terminal Quantity2
Mounting MethodTERMINAL
Breakdown Voltage1.500 KILOVOLTS MINIMUM AND 2.500 KILOVOLTS MAXIMUM
Vendor Part Numbers710199-001
Cancelled NSN5920-00-727-7377 (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 BL744 available?
We can source BL744 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 BL744 by Cpi Electron Device Business, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BL744 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 BL744?
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 BL744?
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.