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Diotec Semiconductor 1.5SMCJ48 — Circuit Protection

Diotec 1.5SMCJ48 TVS Diode, 48V standoff, 1500W

MPN1.5SMCJ48
Active

Diotec Semiconductor 1.5SMCJ48 unidirectional Zener TVS diode, 48V reverse standoff, 1500W peak pulse, 17.5A peak pulse current, clamping max 85.5V, DO-214AB SMC surface-mount package.

$0.9158Ref. price · indicative, final on quote
Diotec Semiconductor 1.5SMCJ48 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMCJ48 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown53.3V
Voltage - clamping (Max) @ ipp85.5V
Voltage - reverse standoff48V
Current - peak pulse (10/1000μs)17.5A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-50°C~150°C(TJ)
PackageStrip
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

What the 1.5SMCJ48 does and where it fits

The clamping voltage ceiling of 85.5V at 17.5A peak pulse defines the protection window above the 48V standoff rail — when a transient exceeds the breakdown threshold of 53.3V minimum, the diode clamps the overvoltage at 85.5V and conducts the surge current away from the protected circuit. At a 48V nominal rail, that gives roughly 37.5V of headroom to the clamping ceiling under surge conditions.

Sourcing the 1.5SMCJ48

No official cross-reference or second-source alternative is listed in the record for this specific order code.

Frequently asked questions

What package does the 1.5SMCJ48 use, and is it straightforward to handle on a board?

The 1.5SMCJ48 ships in the DO-214AB (SMC) surface-mount package — a two-terminal body with a cathode band for polarity orientation. The SMC footprint is compatible with standard reflow and is easily reworkable with hot-air or soldering iron without special tooling.