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Diodes Incorporated SMAJ48A-13-F — Circuit Protection

SMAJ48A-13-F Diodes Inc TVS, 48V Standoff, 77.4V Clamp

MPNSMAJ48A-13-F
Active

Diodes Incorporated SMAJ48A-13-F Zener TVS diode, 400W peak pulse power, 48V reverse standoff voltage, 77.4V clamping, DO-214AC SMA package, Tape & Reel.

$0.3900Ref. price · indicative, final on quote
Diodes Incorporated SMAJ48A-13-F datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ48A-13-F specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown53.3V
Voltage - clamping (Max) @ ipp77.4V
Voltage - reverse standoff48V
Current - peak pulse (10/1000μs)5.2A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

400W peak pulse clamping for 48V rails

The SMAJ48A-13-F: For a 48V supply bus, the 77.4V clamp stays below typical downstream component absolute maximum ratings, which is the key protection margin.

Package and assembly fit

Housed in the standard DO-214AC (SMA) surface-mount package, this part reflows with standard lead-free profiles and suits automated pick-and-place. The single unidirectional channel is the common choice for DC rail clamping — a single device per rail.