P4SMA12A The P4SMA12A is a 400W unidirectional Zener TVS diode from Littelfuse Inc. It features a reverse standoff voltage of 10.2V, clamping voltage of 16.7V, and peak pulse current of 24.6A.
Mfr Part #:

P4SMA12A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The P4SMA12A is a 400W unidirectional Zener TVS diode from Littelfuse Inc. It features a reverse standoff voltage of 10.2V, clamping voltage of 16.7V, and peak pulse current of 24.6A.
Total Stock: 178 pcs

P4SMA12A Available from 1 distributor

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P4SMA12A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Reverse Standoff Voltage (Vrwm)
Supplier Device Package
Tape & Reel
Termination Finish
Type
Unidirectional Channels
Voltage

P4SMA12A Description

Short technical summary and product information.

The P4SMA12A is a 400W peak pulse power TVS diode from Littelfuse Inc., part of the P4SMA series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This unidirectional Zener diode offers a reverse standoff voltage of 10.2V and a clamping voltage of 16.7V, with a peak pulse current rating of 24.6A.

 

The device features a fast response time of less than 1.0ps from 0V to breakdown voltage, ensuring rapid clamping of transients. It is capable of withstanding a peak forward surge current of 60A (8.3ms single half sine wave). The operating junction temperature range is -65°C to 150°C. It meets IEC 61000-4-2 ESD protection up to 30kV (air and contact).

 

The P4SMA12A is housed in a surface mount DO-214AC (SMA) package with matte tin lead-free plating. It is RoHS3 compliant, halogen-free, and meets MSL level 1 (unlimited). The plastic package is flammability rated V-0 per UL-94.

 

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

P4SMA12A Quick Information

Product Type: TVS Diode
Series: P4SMA
Canonical Name: P4SMA12A TVS Diode, 400W, Unidirectional, 10.2V Standoff
Subcategory: Unidirectional

P4SMA12A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Non-Compliant

P4SMA12A Features

  • 400W peak pulse power dissipation.
  • Unidirectional Zener TVS protection.
  • Fast response time less than 1.0ps.
  • Surface mount DO-214AC package.
  • IEC 61000-4-2 ESD protection up to 30kV.

P4SMA12A Applications

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

P4SMA12A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the P4SMA12A?

The reverse standoff voltage (VRWM) is 10.2V.

What is the clamping voltage of the P4SMA12A?

The clamping voltage is 16.7V.

What is the peak pulse current rating of the P4SMA12A?

The peak pulse current is 24.6A.

What is the package type of the P4SMA12A?

The P4SMA12A is available in a DO-214AC (SMA) surface mount package.

What is the peak pulse power rating of the P4SMA12A?

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

What is the operating temperature range of the P4SMA12A?

The operating temperature range is -65°C to 150°C (junction temperature).

What is the response time of the P4SMA12A?

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

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