SMBJ400A The SMBJ400A is a 600W transient voltage suppression diode from Littelfuse with a 400V reverse standoff voltage and 648V clamping voltage. It is designed for surface mount applications in a DO-214AA package.
Mfr Part #:

SMBJ400A

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The SMBJ400A is a 600W transient voltage suppression diode from Littelfuse with a 400V reverse standoff voltage and 648V clamping voltage. It is designed for surface mount applications in a DO-214AA package.
Total Stock: 5,111 pcs
$ Price Range: $0.14 - $0.83

SMBJ400A Available from 2 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 On Request
Non-Authorised Inventory information
111 pcs
111 pcs On Request 1 On Request On Request On Request On Request On Request

SMBJ400A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMBJ400A Description

Short technical summary and product information.

The SMBJ400A from Littelfuse is a unidirectional TVS diode designed for transient voltage protection in a variety of electronic systems. Key electrical specifications include a reverse standoff voltage of 400V, a maximum clamping voltage of 648V, and a peak pulse power dissipation of 600W under a 10/1000μs waveform. The device can handle a peak pulse current of 900mA. The operating junction temperature range is -65°C to 150°C.

 

This TVS diode features fast response time of less than 1.0ps from 0V to breakdown, making it suitable for protecting sensitive circuits from fast transients. It provides ESD protection in accordance with IEC 61000-4-2 (30kV air/contact) and EFT protection per IEC 61000-4-4. The device has low incremental surge resistance and typical leakage current less than 1μA for parts with breakdown voltage above 12V.

 

The SMBJ400A is housed in a surface mount DO-214AA (SMB) package, with a supplier package designation of DO-214AA (SMBJ). It is RoHS3 compliant, REACH unaffected, and halogen free as per the datasheet. The part is available in tape and reel packaging for automated assembly. It meets MSL level 1 and has a peak reflow temperature tolerance of 260°C for 30 seconds.

SMBJ400A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: TVS Diode, 400V Standoff, 648V Clamping, Surface Mount DO-214AA, Littelfuse SMBJ400A
Subcategory: TVS Diodes

SMBJ400A Compliance

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

SMBJ400A Estimated Pricing

Qty Low High
1+ $0.83 $0.83
10+ $0.51 $0.51
100+ $0.33 $0.33
500+ $0.25 $0.25
1,000+ $0.23 $0.23
3,000+ $0.16 $0.16
6,000+ $0.15 $0.15
9,000+ $0.14 $0.14
15,000+ $0.14 $0.14

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

SMBJ400A Features

  • 600W peak pulse power dissipation.
  • 400V reverse standoff voltage rating.
  • 648V clamping voltage at 900mA.
  • Surface mount DO-214AA package.
  • Fast response time less than 1.0ps.

SMBJ400A Applications

  • Protects I/O interfaces and VCC bus lines.
  • Used in telecom and computer equipment.
  • Suitable for data line ESD protection.
  • Ideal for industrial electronic applications.

SMBJ400A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ400A?

The reverse standoff voltage is 400V (nominal).

What is the clamping voltage of the SMBJ400A?

The maximum clamping voltage is 648V at 900mA peak pulse current (10/1000μs waveform).

What is the peak pulse current rating of the SMBJ400A?

The maximum peak pulse current is 900mA under 10/1000μs waveform conditions.

What is the package type of the SMBJ400A?

It comes in a surface mount DO-214AA (SMB) package with supplier device package DO-214AA (SMBJ).

What is the peak pulse power dissipation of the SMBJ400A?

600W maximum under 10/1000μs waveform.

What is the operating temperature range of the SMBJ400A?

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

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