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Taiwan Semiconductor Corporation 1.5KE91CAHB0G — Circuit Protection
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RoHS Compliant · Lead-Free EIA-481 Standard
Taiwan Semiconductor Corporation / Circuit Protection

1.5KE91CAHB0G TVS Diode, 1500W, Bidirectional, DO-201

MPN 1.5KE91CAHB0G
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Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, 1500W peak pulse power, 77.8V reverse standoff, 86.5V breakdown, 125V clamping, DO-201 axial, AEC-Q101 qualified.

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MOQ: 1 pcs
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP

Full Technical Specifications

15 Parameters
1.5KE91CAHB0G specifications
Parameter / AttributeSpecification / Value
TypeZener
Series1.5KE
MountingThrough Hole
Voltage - breakdown86.5V
Voltage - clamping (Max) @ ipp125V
Voltage - reverse standoff77.8V
Current - peak pulse (10/1000μs)12.6A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageBulk
QualificationAEC-Q101
CaseDO-201AA, DO-27, Axial
Bidirectional channels1
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Technical Details & Description

AEC-Q101 qualified 1500 W bidirectional TVS

The 1.5KE91CAHB0G: It clamps at 125 V maximum with a 12.6 A peak pulse current, protecting downstream circuitry from transients on 77.8 V nominal rails.

Clamping voltage and breakdown margin

Reverse standoff voltage is 77.8 V typical, with breakdown guaranteed at 86.5 V minimum. The 125 V clamping ceiling at 12.6 A peak pulse means a 77.8 V rail sees the TVS stay transparent during normal operation and only conduct when a transient pushes the line above the breakdown threshold.

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