P4SMA39CA Bidirectional TVS diode from Littelfuse, rated for 400W peak pulse power (10/1000µs waveform). Features 53.9V clamping voltage, DO-214AC (SMA) surface mount package.
Mfr Part #:

P4SMA39CA

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Bidirectional TVS diode from Littelfuse, rated for 400W peak pulse power (10/1000µs waveform). Features 53.9V clamping voltage, DO-214AC (SMA) surface mount package.
Total Stock: 7,402 pcs

P4SMA39CA Available from 3 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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7,000 pcs
7000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
257 pcs
257 pcs On Request 1 On Request On Request On Request On Request On Request
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145 pcs
145 pcs On Request 1 On Request On Request On Request On Request On Request

P4SMA39CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
ESD Rating
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Response Time
Supplier Device Package
Tape & Reel
Type
Voltage

P4SMA39CA Description

Short technical summary and product information.

The P4SMA39CA is a bidirectional TVS diode manufactured by Littelfuse Inc., designed to protect sensitive electronic circuits from voltage transients. It offers 400W peak pulse power dissipation at 10/1000µs waveform, with a maximum clamping voltage of 53.9V and peak pulse current of 7.6A. The device provides fast response time of less than 1 picosecond and meets IEC 61000-4-2 ESD requirements of 30kV air and 30kV contact discharge.

 

Packaged in a surface mount DO-214AC (SMA) case, this component is suitable for automated assembly and compact PCB layouts. It operates over a junction temperature range of -65°C to 150°C. The P4SMA39CA is designed for general purpose applications including I/O interface protection, VCC bus protection, and sensitive equipment in telecom, computer, industrial, and consumer electronics.

 

The part is RoHS compliant, halogen-free, lead-free (Pb-free), and meets MSL level 1 (unlimited floor life). It is not intended for power line protection. The device's bidirectional polarity simplifies design by eliminating orientation concerns.

P4SMA39CA Quick Information

Product Type: TVS Diode
Series: P4SMA
Canonical Name: TVS Diode, Bidirectional, 400W, DO-214AC (SMA)
Subcategory: Bidirectional TVS Diode

P4SMA39CA Compliance

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

P4SMA39CA Features

  • Bidirectional TVS for polarity-independent protection.
  • 400W peak pulse power at 10/1000µs.
  • Fast response time less than 1ps.
  • Surface mount DO-214AC (SMA) package.
  • RoHS and halogen-free compliant.

P4SMA39CA Applications

  • Ideal for I/O interface voltage transient protection.
  • Used in telecom and computer power supply circuits.
  • Suitable for consumer electronics transient suppression.
  • Protects VCC bus in industrial control systems.

P4SMA39CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the P4SMA39CA?

The maximum clamping voltage is 53.9V.

What is the peak pulse power rating?

400W at 10/1000µs waveform.

What package does this TVS diode use?

DO-214AC (SMA) surface mount package.

What is the peak pulse current rating?

7.6A maximum.

Is this component RoHS compliant?

Yes, it is RoHS3 compliant and halogen-free.

What ESD rating does it have?

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

What is the operating temperature range?

-65°C to 150°C (junction temperature).

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