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Diodes Incorporated SMAJ40CA-13-F — Circuit Protection

SMAJ40CA-13-F Diodes Inc TVS, 400W, 40V Bidirectional, SMA

MPNSMAJ40CA-13-F
Active

Diodes Incorporated SMAJ40CA-13-F, bidirectional TVS diode, 400W peak pulse power, 40V reverse standoff, 64.5V clamping, DO-214AC SMA package, Tape & Reel.

$0.4300Ref. price · indicative, final on quote
Diodes Incorporated SMAJ40CA-13-F datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ40CA-13-F specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown44.4V
Voltage - clamping (Max) @ ipp64.5V
Voltage - reverse standoff40V
Current - peak pulse (10/1000μs)6.2A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR) Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Bidirectional channels1

Product details

Clamping profile and what it means for your rail

The SMAJ40CA-13-F: Breakdown occurs at 44.4V minimum, and clamping is specified at 64.5V maximum when the peak pulse current reaches 6.2A. That 64.5V clamp is the voltage the protected circuit must survive; if your downstream components have a 60V absolute maximum, this TVS may not hold them safe on a high-energy surge. The device operates from -55°C to 150°C junction temperature, covering industrial and automotive ambient ranges.

DO-214AC SMA footprint and board integration

Housed in a DO-214AC (SMA) surface-mount package, the SMAJ40CA-13-F mates with a standard SMA footprint. The supplier device package is also designated SMA. Tape & Reel packaging (Cut Tape available) supports automated pick-and-place assembly.