SMBJ40A The SMBJ40A is a 600W unidirectional TVS diode from Littelfuse. It features a 40V reverse standoff voltage and 64.5V clamping voltage in a DO-214AA surface mount package.
Mfr Part #:

SMBJ40A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The SMBJ40A is a 600W unidirectional TVS diode from Littelfuse. It features a 40V reverse standoff voltage and 64.5V clamping voltage in a DO-214AA surface mount package.
✓ Total Stock: 149 pcs
$ Price Range: $0.07 - $0.50

SMBJ40A Available from 1 distributor

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✓ Non-Authorised
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149 pcs
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SMBJ40A 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
Response Time
SVHC Present
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMBJ40A Description

Short technical summary and product information.

The SMBJ40A is a 600W unidirectional TVS diode from Littelfuse, designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. It offers excellent clamping capability and low incremental surge resistance.

 

This device features a reverse standoff voltage of 40V and a maximum clamping voltage of 64.5V at a peak pulse current of 9.3A (10/1000µs waveform). It can handle 600W of peak pulse power. The response time is typically less than 1.0ps from 0V to breakdown voltage. It operates over a junction temperature range of -65°C to 150°C.

 

The SMBJ40A is housed in a DO-214AA (SMB) surface mount package, suitable for automated assembly. It is compliant with RoHS, Halogen Free, and Pb-free E3 standards, and meets MSL level 1 per J-STD-020.

 

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

SMBJ40A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ40A TVS Diode
Subcategory: TVS Diodes

SMBJ40A Compliance

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

SMBJ40A Estimated Pricing

Qty Low High
1+ $0.50 $0.50
10+ $0.31 $0.31
100+ $0.20 $0.20
500+ $0.15 $0.15
1,000+ $0.13 $0.13
3,000+ $0.09 $0.09
6,000+ $0.08 $0.08
9,000+ $0.08 $0.08
15,000+ $0.07 $0.07
21,000+ $0.07 $0.07
30,000+ $0.07 $0.07

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

SMBJ40A Features

  • 600W peak pulse power capability.
  • 40V reverse standoff voltage.
  • Fast response time less than 1ps.
  • Surface mount DO-214AA package.
  • Compliant with RoHS and Halogen Free.

SMBJ40A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for VCC bus protection.
  • Used in telecom and computer equipment.
  • Suitable for industrial and consumer electronics.

SMBJ40A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ40A?

The reverse standoff voltage is 40V.

What is the clamping voltage of the SMBJ40A?

The maximum clamping voltage is 64.5V at a peak pulse current of 9.3A.

What is the peak pulse current rating?

The peak pulse current is 9.3A for a 10/1000µs waveform.

What package is the SMBJ40A available in?

The SMBJ40A is available in a DO-214AA (SMB) surface mount package.

What is the peak pulse power dissipation?

The peak pulse power dissipation is 600W for a 10/1000µs waveform.

What is the operating temperature range?

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

Is the SMBJ40A RoHS compliant?

Yes, the SMBJ40A is RoHS3 compliant and Halogen Free according to the datasheet.

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