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Taiwan Semiconductor Corporation 1.5KE15CAHA0G — Circuit Protection

1.5KE15CAHA0G TVS Diode, 1500W, 12.8V Standoff, AEC-Q101

MPN1.5KE15CAHA0G
Active

Taiwan Semiconductor 1.5KE series bidirectional Zener TVS diode, 1.5KE15CAHA0G, 1500W peak pulse power, 12.8V standoff, 21.2V clamping, DO-201AA axial through-hole, AEC-Q101 automotive qualified.

$0.5369Ref. price · indicative, final on quote
Taiwan Semiconductor Corporation 1.5KE15CAHA0G datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE15CAHA0G specifications
ParameterValue
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown14.3V
Voltage - clamping (Max) @ ipp21.2V
Voltage - reverse standoff12.8V
Current - peak pulse (10/1000μs)74A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageTape & Box (TB)
QualificationAEC-Q101
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Active automotive-grade transient suppressor

The 1.5KE15CAHA0G: With a 12.8V reverse standoff voltage and 14.3V minimum breakdown, it clamps transients to 21.2V maximum at 74A peak pulse current — sized for 12V automotive and industrial DC bus protection where the nominal rail sits below the standoff threshold.

Bidirectional clamping for symmetrical signal pairs

Single bidirectional channel means the TVS triggers identically on positive and negative transients — a natural fit for differential signal pairs (CAN, RS-485, LIN) where the common-mode voltage swings both ways. The 12.8V standoff leaves margin on a 12V battery line that can sag to 9V during cold crank and still not clip the signal; the 21.2V clamp catches load-dump spikes before they reach the transceiver's abs-max rating.

Frequently asked questions

What compliance documentation does Taiwan Semiconductor provide for 1.5KE15CAHA0G?

The part carries AEC-Q101 automotive qualification, which includes the full suite of reliability stress tests (HTRB, H3TRB, temperature cycling, ESD) and PPAP documentation. RoHS and REACH compliance are standard for the HA0G suffix; the buyer should request the specific certificate of compliance at RFQ time.