SMAJ400CA SMAJ400CA is a 400W bidirectional TVS diode from Littelfuse. It features 400V reverse standoff voltage and 648V clamping voltage in a DO-214AC surface mount package.
Mfr Part #:

SMAJ400CA

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMAJ400CA is a 400W bidirectional TVS diode from Littelfuse. It features 400V reverse standoff voltage and 648V clamping voltage in a DO-214AC surface mount package.
Total Stock: 6,191 pcs
$ Price Range: $0.16 - $0.91

SMAJ400CA Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
956 pcs
956 pcs On Request 1 On Request On Request On Request On Request On Request
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235 pcs
235 pcs On Request 1 On Request On Request On Request On Request On Request

SMAJ400CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
ESD Rating (IEC 61000-4-2)
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Voltage

SMAJ400CA Description

Short technical summary and product information.

The SMAJ400CA is a bidirectional transient voltage suppression (TVS) diode from Littelfuse, designed to protect sensitive electronic equipment from voltage transients. With a reverse standoff voltage of 400V and a clamping voltage of 648V at 400W peak pulse power (10/1000µs waveform), it offers robust protection. The device can handle a peak pulse current of 600mA and features a fast response time of less than 1ps. It operates over a temperature range of -65°C to 150°C and is rated for ESD protection up to 30kV (air and contact) per IEC 61000-4-2. Housed in a surface mount DO-214AC (SMA) package, it is suitable for general purpose applications including I/O interface, VCC bus, telecom, computer, industrial, and consumer electronics.

SMAJ400CA Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: SMAJ400CA TVS Diode
Subcategory: Bidirectional TVS Diode

SMAJ400CA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free E3

SMAJ400CA Estimated Pricing

Qty Low High
1+ $0.91 $0.91
10+ $0.56 $0.56
100+ $0.36 $0.36
500+ $0.28 $0.28
1,000+ $0.25 $0.25
2,000+ $0.23 $0.23
5,000+ $0.17 $0.17
10,000+ $0.16 $0.16

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

SMAJ400CA Features

  • Bidirectional TVS diode for overvoltage protection.
  • 400V reverse standoff voltage rating.
  • 648V clamping voltage with 400W peak pulse power.
  • Surface mount DO-214AC package.
  • Fast response time less than 1ps.

SMAJ400CA Applications

  • Ideal for I/O interface protection.
  • Suitable for VCC bus protection.
  • Used in telecom and computer equipment.
  • Applicable in industrial electronics systems.

SMAJ400CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ400CA?

The reverse standoff voltage is 400V.

What is the clamping voltage of this TVS diode?

The clamping voltage is 648V.

What is the peak pulse current rating?

The peak pulse current is 600mA (0.6A).

What package does the SMAJ400CA come in?

It comes in a DO-214AC (SMA) surface mount package.

What is the peak pulse power rating?

The peak pulse power is 400W.

What is the operating temperature range?

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

Does the SMAJ400CA have ESD protection?

Yes, it is rated for ESD protection of 30kV (air) and 30kV (contact) per IEC 61000-4-2.

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