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Bourns Inc. 1.5SMBJ33CA-H — Circuit Protection

Bourns 1.5SMBJ33CA-H TVS Diode, 1500W, 33V, DO-214AA

MPN1.5SMBJ33CA-H
Active

Bourns Inc. Automotive, AEC-Q101, 1.5SMBJ series bidirectional TVS diode, 1500W peak pulse power, 33V reverse standoff, 36.7V breakdown, 53.3V clamping, DO-214AA (SMB) package, Tape & Reel.

$0.2743Ref. price · indicative, final on quote
Bourns Inc. 1.5SMBJ33CA-H datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMBJ33CA-H specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMBJ
MountingSurface Mount
Voltage - breakdown36.7V
Voltage - clamping (Max) @ ipp53.3V
Voltage - reverse standoff33V
Current - peak pulse (10/1000μs)28.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AA, SMB
Bidirectional channels1

Product details

What the 1500W rating means on a 33V rail

The 1.5SMBJ33CA-H: On a 33V nominal rail (reverse standoff voltage 33V), it clamps transients to 53.3V maximum, shunting up to 28.2A peak pulse current. That 1500W rating means it absorbs high-energy surges like automotive load dump or lightning-induced spikes without failing — not just ESD-level events.

Automotive grade and temperature range

If you are building an ECU, BMS, or ADAS sensor module, this is the temperature grade you need.

Package and field replacement

The bidirectional configuration means a single device protects both polarities, reducing component count on the board. Polarity orientation is not an issue; it clips the same either way.

Frequently asked questions

What compliance documentation does Bourns provide for 1.5SMBJ33CA-H?

The part is AEC-Q101 qualified for automotive applications. Bourns typically provides RoHS and REACH compliance documentation; check the product page or request at RFQ.