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Diotec Semiconductor 1.5SMCJ22A-AQ — Circuit Protection

1.5SMCJ22A-AQ TVS Diode 22V 35.5V Clamping DO-214AB

MPN1.5SMCJ22A-AQ
Active

Diotec Semiconductor 1.5SMCJ22A-AQ unidirectional TVS Zener diode, 22V standoff 24.4V min breakdown 35.5V max clamping, 42.3A peak pulse, 1500W peak pulse power, DO-214AB (SMC) surface mount strip packaging.

$0.9260Ref. price · indicative, final on quote
Diotec Semiconductor 1.5SMCJ22A-AQ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMCJ22A-AQ specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown24.4V
Voltage - clamping (Max) @ ipp35.5V
Voltage - reverse standoff22V
Current - peak pulse (10/1000μs)42.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-50°C~150°C(TJ)
PackageStrip
ApplicationsAutomotive
CaseDO-214AB, SMC
Unidirectional channels1

Product details

TVS clamping and standoff ratings

The 1.5SMCJ22A-AQ is a unidirectional TVS Zener diode rated to suppress transients on a 22 V nominal rail. Peak pulse power handling of 1500 W (1.5 kW) means the part absorbs the transient energy without degradation during the clamping event — a figure that matters for automotive input lines where load-dump transients can inject joules into the protection node in milliseconds.

Junction temperature and automotive environment

Junction operating range is rated -50°C to 150°C (TJ), covering the cold-start and engine-compartment thermal excursions typical in automotive deployments. The diode is listed for automotive applications, and the SMC (DO-214AB) package provides the thermal pad area needed to conduct the clamping dissipation to the board.

Frequently asked questions

What package does the 1.5SMCJ22A-AQ come in?

The part ships in strip packaging with a SMC/DO-214AB (DO-214AB) surface-mount footprint — the same body as the common SMC package, sized for reflow assembly onto the board.

What compliance documentation does Diotec provide for this TVS diode?

The evidence does not list specific certifications (RoHS, REACH, AEC-Q) for this order code. The applications field confirms automotive end-use designation, but compliance documentation availability should be confirmed directly with Diotec at RFQ.