Bourns · Electronic Components
SMAJ18A
DIODE TVS 18V 400W UNI 5% SMD
Part NumberSMAJ18A
ManufacturerBourns
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-644-3758 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
Current Rating1.0 MILLIAMPERES NOMINAL REVERSE CURRENT, AVERAGE
Overall Length4.60 MILLIMETERS NOMINAL
Overall Width2.92 MILLIMETERS NOMINAL
Overall Height2.43 MILLIMETERS NOMINAL
Power Rating Per Characteristic400.0 WATTS NOMINAL TOTAL POWER DISSIPATION
Function For Which DesignedTRANSIENT SUPPRESSOR
Voltage Rating In Volts Per Charac18.0 NOMINAL REVERSE VOLTAGE, PEAK
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
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 SMAJ18A available?
We can source SMAJ18A 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 SMAJ18A by Bourns obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SMAJ18A 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 SMAJ18A?
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 SMAJ18A?
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.