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Diotec Semiconductor 1.5SMCJ36A-AQ — Circuit Protection

Diotec 1.5SMCJ36A-AQ TVS Diode, 36V standoff, 58.1V clamp

MPN1.5SMCJ36A-AQ
Active

Diotec Semiconductor, Zener TVS, 1.5SMCJ36A-AQ, unidirectional, 36 V standoff, 40 V min breakdown, 58.1 V clamping @ 25.8 A, 1500 W peak pulse, -50°C to 150°C junction, DO-214AB (SMC), surface mount, automotive.

$0.9260Ref. price · indicative, final on quote
Diotec Semiconductor 1.5SMCJ36A-AQ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMCJ36A-AQ specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown40V
Voltage - clamping (Max) @ ipp58.1V
Voltage - reverse standoff36V
Current - peak pulse (10/1000μs)25.8A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-50°C~150°C(TJ)
PackageStrip
ApplicationsAutomotive
CaseDO-214AB, SMC
Unidirectional channels1

Product details

What the 36 V standoff rating means for the rail

The 1.5SMCJ36A-AQ: The 36 V reverse standoff (typ) is the working voltage — the TVS sees 36 V on the line continuously without conducting. A transient that pushes the rail above 40 V min triggers breakdown and the clamp engages at 58.1 V max. This is a unidirectional device — it clamps only positive transients. Circuits that need bidirectional protection (AC rails, differential pairs) need a dual-polarity part; a unidirectional TVS on those rails will not respond to negative-going spikes. Check the line polarity before committing this to the BOM.

Peak pulse rating and clamping performance

The 25.8 A peak pulse current at that waveform sets the real clamping shoulder; the 58.1 V ceiling is what the downstream semiconductor sees when the surge arrives.

Listed Active by Diotec Semiconductor — this part is in normal production and supported for new designs.

Frequently asked questions

Where can I source the 1.5SMCJ36A-AQ and how is it quoted?

Quoted to order through independent distribution against the BOM quantity. The DO-214AB (SMC) surface-mount package is standard for this series — confirm the BOM pad layout matches before committing.

What is the closest alternative to the 1.5SMCJ36A-AQ in this Diotec family?

Pin-compatible alternatives exist within the 1.5SMCJ series at different standoff voltages — a different Vstandoff rating changes the protected rail ceiling. The 36 V standoff rating of this part is the primary selection parameter; a voltage-step alternative in the same package would need to be evaluated against the target line voltage before substituting.