P4KE33A Unidirectional TVS diode from Littelfuse, rated for 400W peak pulse power. Features 28.2V reverse standoff voltage and 45.7V clamping voltage in a DO-204AL (DO-41) through-hole package.
Mfr Part #:

P4KE33A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Unidirectional TVS diode from Littelfuse, rated for 400W peak pulse power. Features 28.2V reverse standoff voltage and 45.7V clamping voltage in a DO-204AL (DO-41) through-hole package.
Total Stock: 249 pcs
$ Price Range: $0.11 - $0.69

P4KE33A Available from 1 distributor

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P4KE33A Specifications Quick View

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

P4KE33A Description

Short technical summary and product information.

The P4KE33A is a 400W unidirectional TVS diode from Littelfuse, part of the P4KE series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning, ESD, and EFT events. The device offers a reverse standoff voltage of 28.2V and a maximum clamping voltage of 45.7V at a peak pulse current of 9A (10/1000μs waveform).

 

Key electrical characteristics include a fast response time of less than 1.0ps from 0V to breakdown voltage, and a peak forward surge current rating of 60A (8.3ms half sine wave). The diode is unidirectional and has a glass passivated chip junction for reliability. Operating temperature range is -55°C to 175°C.

 

The P4KE33A is housed in a DO-204AL (DO-41) axial leaded package, suitable for through-hole mounting. It is RoHS compliant, halogen free, and Pb-free (E3). The device is ideal for general purpose applications such as I/O interfaces, VCC bus, and telecom equipment.

P4KE33A Quick Information

Product Type: TVS Diode
Series: P4KE
Canonical Name: TVS Diode, Unidirectional, 28.2V Reverse Standoff, 45.7V Clamping, 400W, DO-204AL (DO-41)
Subcategory: Unidirectional TVS Diode

P4KE33A Compliance

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

P4KE33A 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.

P4KE33A Features

  • 400W peak pulse power dissipation.
  • 28.2V reverse standoff voltage.
  • 45.7V clamping voltage at 9A.
  • Fast response time under 1.0ps.
  • Unidirectional design with axial leads.

P4KE33A Applications

  • Protects I/O interfaces and VCC buses.
  • Ideal for telecom and industrial equipment.
  • Surge protection for consumer electronics.
  • Suitable for ESD and EFT protection.
  • Used in general purpose circuit protection.

P4KE33A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the P4KE33A?

28.2V.

What is the clamping voltage of the P4KE33A?

45.7V maximum at 9A peak pulse current.

What is the peak pulse current rating of the P4KE33A?

9A maximum (10/1000μs waveform).

What is the package type of the P4KE33A?

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

What is the operating temperature range of the P4KE33A?

-55°C to 175°C (junction temperature).

What is the response time of the P4KE33A?

Typically less than 1.0ps from 0V to breakdown voltage.

What is the ESD rating of the P4KE33A?

30kV air and 30kV contact per IEC 61000-4-2.

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