P4KE39A The Littelfuse P4KE39A is a 400W unidirectional TVS diode designed for general purpose protection. It features a 33.3V standoff voltage, 53.9V clamping, and is through-hole mounted in a DO-204AL (DO-41) package.
Mfr Part #:

P4KE39A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse P4KE39A is a 400W unidirectional TVS diode designed for general purpose protection. It features a 33.3V standoff voltage, 53.9V clamping, and is through-hole mounted in a DO-204AL (DO-41) package.
Total Stock: 1,370 pcs
$ Price Range: $0.11 - $0.69

P4KE39A Available from 1 distributor

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Non-Authorised
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1,370 pcs
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P4KE39A 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
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
SVHC Present
Supplier Device Package
Technology
Type
Unidirectional Channels
Voltage

P4KE39A Description

Short technical summary and product information.

The Littelfuse P4KE39A is a 400W unidirectional transient voltage suppression (TVS) diode from the P4KE series. It is designed to protect sensitive electronic equipment from electrostatic discharge (ESD), electrical fast transients (EFT), and induced lightning surges. The device has a reverse standoff voltage (V_RWM) of 33.3V and a clamping voltage (V_CL) of 53.9V at a peak pulse current (I_PP) of 7.6A under a 10/1000µs waveform.

 

This TVS diode utilizes a glass passivated junction in a DO-204AL (DO-41) axial leaded package, making it suitable for through-hole mounting. It operates over a junction temperature range of -55°C to 175°C. The device features a fast response time of typically less than 1.0ps and typical leakage current of ≤1 µA for breakdown voltages above 12.6V.

 

Typical applications include general purpose circuit protection in telecom, computer, industrial ICT equipment, and consumer electronics. The P4KE39A is RoHS compliant and halogen free, with a peak pulse power dissipation of 400W and a peak forward surge current rating of 60A (8.3ms half sine wave for unidirectional only).

P4KE39A Quick Information

Product Type: TVS Diode
Series: P4KE
Canonical Name: Littelfuse P4KE39A TVS Diode, 400W, 33.3V Standoff
Subcategory: Unidirectional TVS Diode

P4KE39A Compliance

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

P4KE39A Estimated Pricing

Qty Low High
1+ $0.69 $0.69
10+ $0.42 $0.42
100+ $0.27 $0.27
500+ $0.21 $0.21
1,000+ $0.18 $0.18
2,000+ $0.17 $0.17
5,000+ $0.12 $0.12
10,000+ $0.11 $0.11
15,000+ $0.11 $0.11
25,000+ $0.11 $0.11

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

P4KE39A Features

  • 400W peak pulse power dissipation.
  • 33.3V reverse standoff voltage.
  • 53.9V clamping voltage at 7.6A.
  • Through-hole DO-204AL package.
  • Fast response time under 1ps.

P4KE39A Applications

  • Protects against ESD, EFT, and lightning transients.
  • Used in telecom and computer equipment.
  • Suitable for industrial ICT applications.
  • Ideal for consumer electronics protection.

P4KE39A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the P4KE39A?

The reverse standoff voltage (V_RWM) is 33.3V.

What is the clamping voltage of the P4KE39A?

The clamping voltage is 53.9V at a peak pulse current of 7.6A.

What is the peak pulse current rating?

The peak pulse current (I_PP) is 7.6A at 10/1000µs waveform.

What is the peak pulse power dissipation?

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

What package does the P4KE39A use?

The P4KE39A is available in a DO-204AL (DO-41) axial leaded through-hole package.

What is the operating temperature range?

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

Is the P4KE39A unidirectional?

Yes, it is a unidirectional TVS diode with one channel.

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