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Bourns Inc. 1.5SMC20CA-Q — Circuit Protection

Bourns 1.5SMC20CA-Q TVS Diode, 1500W Bidirectional, AEC-Q101

MPN1.5SMC20CA-Q
Active

Bourns Inc. 1.5SMC-Q series bidirectional Zener TVS diode, 1.5SMC20CA-Q, 1500W peak pulse power, 17.1V reverse standoff, 27.7V clamping, DO-214AB SMC, AEC-Q101 qualified, Tape & Reel.

$0.3210Ref. price · indicative, final on quote
Bourns Inc. 1.5SMC20CA-Q datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC20CA-Q specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC-Q
MountingSurface Mount
Voltage - breakdown19V
Voltage - clamping (Max) @ ipp27.7V
Voltage - reverse standoff17.1V
Current - peak pulse (10/1000μs)54.9A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive, Telecom
CaseDO-214AB, SMC
Bidirectional channels1

Product details

Clamping parameters and what they mean for the circuit

The 1.5SMC20CA-Q: Breakdown occurs at 19 V minimum, and clamping is held to 27.7 V at the full 54.9 A peak current. Bidirectional configuration (single channel) means the same clamping characteristic applies to positive and negative transients — no orientation concern on the PCB, which simplifies assembly for automated pick-and-place in the DO-214AB (SMC) package. The wide thermal envelope also suits telecom base-station equipment where enclosure temperatures can exceed 85°C.

Supplied in Tape & Reel packaging for surface-mount assembly.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5SMC20CA-Q?

No official second-source or pin-compatible alternative is listed in the Bourns 1.5SMC-Q series documentation. The 1.5SMC20CA-Q is the bidirectional 20 V variant of the family; unidirectional versions (1.5SMC20A-Q) share the same DO-214AB footprint but differ in clamping symmetry. For a drop-in replacement, confirm the standoff voltage and package match with the BOM position.

What compliance documentation does Bourns provide for 1.5SMC20CA-Q?

The 1.5SMC20CA-Q is AEC-Q101 qualified for automotive applications. Bourns typically provides RoHS and REACH compliance declarations for the 1.5SMC-Q series. Specific documentation (certificate of compliance, PPAP level) can be requested at RFQ time.