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1.5KE91A TVS diode from Littelfuse, 77.8V reverse standoff voltage, 125V clamping, 1500W peak pulse power in DO-201 through-hole package.
Mfr Part #:

1.5KE91A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TVS diode from Littelfuse, 77.8V reverse standoff voltage, 125V clamping, 1500W peak pulse power in DO-201 through-hole package.
✓ Total Stock: 25 pcs

1.5KE91A Available from 1 distributor

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✓ Non-Authorised
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Bristol Electronics ✓
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25 pcs
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25 pcs On Request 1 On Request On Request On Request On Request On Request
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1.5KE91A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Halogen Free
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Package / Case
Power
Power Line Protection
Response Time
SVHC Present
Supplier Device Package
Tape & Reel
Termination Finish
Type
Unidirectional Channels
Voltage
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1.5KE91A Description

Short technical summary and product information.

The 1.5KE91A is a 1500W transient voltage suppression diode from Littelfuse's 1.5KE series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. Key electrical characteristics include a reverse standoff voltage of 77.8V, a minimum breakdown voltage of 86.45V, and a maximum clamping voltage of 125V at a peak pulse current of 12.2A (10/1000μs waveform). The device offers a fast response time of typically less than 1.0ps. It is unidirectional with one channel. The DO-201 package (DO-201AA, DO-27, Axial) supports through-hole mounting. Operating temperature range is -55°C to 175°C. The device is RoHS3 compliant, REACH unaffected, and has MSL 1 unlimited. It features matte tin lead-free plated termination. Applications include general purpose protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

1.5KE91A Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: 1.5KE91A TVS Diode, 77.8V Standoff, 125V Clamping, DO-201
Subcategory: TVS Diode

1.5KE91A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free E3

1.5KE91A Features

  • 1500W peak pulse power dissipation capability.
  • 77.8V reverse standoff voltage rating.
  • 125V maximum clamping voltage at 12.2A.
  • Fast response time less than 1.0ps.
  • DO-201 through-hole axial leaded package.

1.5KE91A Applications

  • Protects I/O interfaces from voltage transients.
  • Safeguards VCC bus in electronic circuits.
  • Used in telecom and industrial equipment.
  • Ideal for consumer electronics transient protection.

1.5KE91A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE91A?

77.8V.

What is the breakdown voltage of the 1.5KE91A?

Minimum 86.45V.

What is the clamping voltage of the 1.5KE91A?

125V at 12.2A peak pulse current.

What is the peak pulse current rating?

12.2A for 10/1000μs waveform.

What package is the 1.5KE91A available in?

DO-201AA, DO-27, Axial (through-hole).

What is the peak pulse power rating?

1500W for 10/1000μs waveform.

What is the operating temperature range?

-55°C to 175°C.

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