P4KE91CA Bidirectional TVS diode from Littelfuse, rated at 400W peak pulse power. Features 77.8V reverse standoff voltage, 125V clamping, and 3.3A peak pulse current in a through-hole DO-204AL package.
Mfr Part #:

P4KE91CA

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Bidirectional TVS diode from Littelfuse, rated at 400W peak pulse power. Features 77.8V reverse standoff voltage, 125V clamping, and 3.3A peak pulse current in a through-hole DO-204AL package.
Total Stock: 100 pcs
$ Price Range: $0.16 - $0.94

P4KE91CA Available from 1 distributor

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P4KE91CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
Halogen Free
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Supplier Device Package
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Voltage

P4KE91CA Description

Short technical summary and product information.

The P4KE91CA is a 400W bidirectional transient voltage suppression (TVS) diode from Littelfuse, designed to protect sensitive electronic equipment from electrostatic discharge (ESD), electrical fast transients (EFT), and induced lightning surges.

 

Key electrical specifications include a reverse standoff voltage of 77.8V, a maximum clamping voltage of 125V at a peak pulse current of 3.3A, and a typical response time of less than 1ps. The device is rated for 400W peak pulse power dissipation under a 10/1000μs waveform and features a low incremental surge resistance.

 

The P4KE91CA is housed in a through-hole DO-204AL (DO-41) axial leaded package, with an operating junction temperature range of -55°C to 175°C. Typical thermal resistance is 60°C/W junction-to-lead and 100°C/W junction-to-ambient. The component is lead-free (Pb-free E3) and halogen free per the datasheet, with RoHS3 and REACH unaffected compliance flags.

 

Ideal for use in I/O interfaces, VCC bus lines, telecom, computer, industrial ICT equipment, and consumer electronics, this TVS diode offers robust transient protection in a compact axial package.

P4KE91CA Quick Information

Product Type: TVS Diode
Series: P4KE
Canonical Name: Transient Voltage Suppression Diode, P4KE91CA, Bidirectional, 77.8V Standoff, 125V Clamp, DO-204AL
Subcategory: Bidirectional TVS Diode

P4KE91CA Compliance

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

P4KE91CA Estimated Pricing

Qty Low High
1+ $0.94 $0.94
10+ $0.58 $0.58
100+ $0.38 $0.38
500+ $0.29 $0.29
1,000+ $0.26 $0.26
2,000+ $0.24 $0.24
5,000+ $0.18 $0.18
10,000+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

P4KE91CA Features

  • 400W peak pulse power capability.
  • 77.8V reverse standoff voltage.
  • 125V clamping voltage at 3.3A.
  • Bidirectional TVS protection.
  • Through-hole DO-204AL package.

P4KE91CA Applications

  • Protects I/O interfaces from ESD.
  • Safeguards VCC bus from transients.
  • Used in telecom and industrial gear.
  • Compatible with IEC 61000-4-2 ESD.

P4KE91CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the P4KE91CA?

77.8V

What is the clamping voltage?

125V

What is the peak pulse current rating?

3.3A

What package does the P4KE91CA come in?

DO-204AL (DO-41) axial leaded through-hole package

What is the operating temperature range?

-55°C to 175°C (junction)

Is the P4KE91CA bidirectional or unidirectional?

Bidirectional (one bidirectional channel)

What is the response time of this TVS diode?

Typically less than 1ps from 0V to VBR min

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