onsemi · Electronic Components
1SMB5918BT3
DIODE ZENER 5.1V 3W SMB
Part Number1SMB5918BT3
Manufactureronsemi
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-507-5101 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR; PLASTIC ENCLOSURE
Current Rating294.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT
Terminals2 PRINTED CIRCUIT
Mounting MethodTERMINAL
Overall Length5.2 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM
Overall Width3.3 MILLIMETERS MINIMUM AND 3.8 MILLIMETERS MAXIMUM
Overall Height1.9 MILLIMETERS MINIMUM AND 2.4 MILLIMETERS MAXIMUM
Mounting Facility Quantity2
Voltage Rating In Volts Per Charac4.8 MINIMUM REGULATOR VOLTAGE, DC AND 5.1 MAXIMUM REGULATOR VOLTAGE, DC
Power Rating Per Characteristic3.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
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 1SMB5918BT3 available?
We can source 1SMB5918BT3 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 1SMB5918BT3 by onsemi obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1SMB5918BT3 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 1SMB5918BT3?
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 1SMB5918BT3?
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.