P4KE12A Unidirectional TVS diode with 10.2V reverse standoff voltage, 16.7V clamping, and 400W peak pulse power dissipation in a DO-204AL (DO-41) through-hole package.
Mfr Part #:

P4KE12A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Unidirectional TVS diode with 10.2V reverse standoff voltage, 16.7V clamping, and 400W peak pulse power dissipation in a DO-204AL (DO-41) through-hole package.
Total Stock: 180 pcs
$ Price Range: $0.13 - $0.57

P4KE12A Available from 1 distributor

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P4KE12A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Forward Voltage (Max) @ 25A
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Package / Case
Peak Forward Surge Current (8.3ms)
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Steady State Power Dissipation
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

P4KE12A Description

Short technical summary and product information.

The P4KE12A is a unidirectional Zener TVS diode from Littelfuse designed to protect sensitive electronic equipment from voltage transients induced by lightning, ESD, and EFT events. It features a reverse standoff voltage of 10.2V and a maximum clamping voltage of 16.7V at a peak pulse current of 24.6A (10/1000μs waveform). The device can handle 400W of peak pulse power dissipation under the same waveform conditions.

 

This diode offers a fast response time of less than 1.0ps from 0V to breakdown voltage, making it suitable for high-speed data line protection. It is unidirectional with a single channel and is not intended for power line protection. The part is housed in a DO-204AL (DO-41) axial-leaded through-hole package, which allows for easy insertion in PCB or point-to-point wiring.

 

Electrical characteristics include a maximum forward voltage of 3.5V at 25A (unidirectional only) and a peak forward surge current rating of 60A for an 8.3ms half sine wave. The device operates over a junction temperature range of -55°C to 175°C and has typical thermal resistance of 60°C/W junction-to-lead and 100°C/W junction-to-ambient. Steady-state power dissipation is 1.5W when mounted on an infinite heat sink at 75°C lead temperature.

P4KE12A Quick Information

Product Type: TVS Diode
Series: P4KE
Canonical Name: P4KE12A TVS Diode, Unidirectional, 10.2V Reverse Standoff, 400W Peak Pulse, DO-204AL
Subcategory: Unidirectional TVS Diode

P4KE12A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

P4KE12A Estimated Pricing

Qty Low High
1+ $0.57 $0.57
10+ $0.35 $0.35
100+ $0.23 $0.23
500+ $0.17 $0.17
1,000+ $0.15 $0.15
2,000+ $0.14 $0.14
5,000+ $0.14 $0.14
10,000+ $0.13 $0.13

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

P4KE12A Features

  • 400W peak pulse power dissipation.
  • 10.2V reverse standoff voltage.
  • Fast response time under 1.0ps.
  • Unidirectional single channel protection.
  • Through-hole DO-204AL (DO-41) package.

P4KE12A Applications

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

P4KE12A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the P4KE12A?

The reverse standoff voltage is 10.2V.

What is the maximum clamping voltage?

The maximum clamping voltage is 16.7V at the peak pulse current.

What is the peak pulse power rating?

The peak pulse power dissipation is 400W for a 10/1000μs waveform.

What package is the P4KE12A available in?

It is available in a DO-204AL (DO-41) axial-leaded through-hole package.

Is this a unidirectional or bidirectional TVS diode?

It is a unidirectional TVS diode with one channel.

What is the operating temperature range?

The operating junction temperature range is -55°C to 175°C.

What is the response time of this TVS diode?

The typical response time is less than 1.0ps from 0V to minimum breakdown voltage.

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