SMBJ40A-E3/52 The SMBJ40A-E3/52 is a 600W unidirectional TVS diode from Vishay with a 40V reverse standoff voltage and 64.5V clamping voltage, housed in a surface-mount DO-214AA (SMB) package.
Mfr Part #:

SMBJ40A-E3/52

Available from 4 distributors
Mfr Name: Vishay
Vishay
The SMBJ40A-E3/52 is a 600W unidirectional TVS diode from Vishay with a 40V reverse standoff voltage and 64.5V clamping voltage, housed in a surface-mount DO-214AA (SMB) package.
Total Stock: 174,336 pcs
$ Price Range: $0.08 - $0.51

SMBJ40A-E3/52 Available from 4 distributors

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SMBJ40A-E3/52 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Breakdown Voltage (Minimum/Maximum @ IT=1 mA)
Clamping Voltage (Max) @ Ipp
Current
Halogen Free
Industrial Grade
MSL Level
Maximum Junction Temperature (Tj max)
Mounting Type
Operating Temperature
Peak Forward Surge Current (Ifsm)
Power
Power Dissipation (PD)
Power Line Protection
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Test Current (IT)
Type
Unidirectional Channels
Voltage

SMBJ40A-E3/52 Description

Short technical summary and product information.

The SMBJ40A-E3/52 is a 600W surface-mount transient voltage suppressor (TVS) diode from Vishay General Semiconductor, part of the SMBJ series. It is designed to protect sensitive electronics from voltage transients induced by inductive load switching and lightning.

 

This unidirectional device features a reverse standoff voltage of 40V, a minimum breakdown voltage of 44.4V at 1mA, and a maximum clamping voltage of 64.5V at a peak pulse current of 9.3A (10/1000µs waveform). It offers a peak pulse power dissipation of 600W and a steady-state power dissipation of 5.0W. The diode has a very fast response time and low incremental surge resistance.

 

The SMBJ40A-E3/52 is housed in a DO-214AA (SMB) package with matte tin plated leads, suitable for automated placement. It operates over a junction temperature range of -55°C to 150°C and meets MSL level 1 per J-STD-020. The E3 suffix indicates RoHS-compliant and lead-free construction.

SMBJ40A-E3/52 Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ40A-E3/52 Vishay General Semiconductor TVS Diode, Unidirectional, 40V Reverse Standoff, 600W Peak Pulse Power, DO-214AA (SMB)
Subcategory: Unidirectional TVS

SMBJ40A-E3/52 Compliance

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

SMBJ40A-E3/52 Estimated Pricing

Qty Low High
1+ $0.51 $0.51
10+ $0.32 $0.32
100+ $0.20 $0.20
500+ $0.10 $0.10
750+ $0.09 $0.09
2,250+ $0.08 $0.08
4,500+ $0.08 $0.08

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

SMBJ40A-E3/52 Features

  • 600W peak pulse power capability.
  • 40V reverse standoff voltage.
  • Clamps at 64.5V maximum.
  • Surface-mount DO-214AA (SMB) package.
  • RoHS-compliant and lead-free.

SMBJ40A-E3/52 Applications

  • Protects sensitive electronics from voltage transients.
  • Used in consumer and computer power supplies.
  • Ideal for industrial and telecommunication systems.
  • Suitable for sensor unit signal line protection.

SMBJ40A-E3/52 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ40A-E3/52?

The reverse standoff voltage (Vwm) is 40V.

What is the breakdown voltage range for this TVS diode?

The breakdown voltage is between 44.4V and 49.1V at a test current of 1mA.

What is the maximum clamping voltage of the SMBJ40A-E3/52?

The maximum clamping voltage is 64.5V at a peak pulse current of 9.3A (10/1000µs waveform).

What is the peak pulse power rating of this device?

The peak pulse power (Pppm) is 600W for a 10/1000µs waveform.

What package does the SMBJ40A-E3/52 come in?

It comes in a surface-mount DO-214AA (SMB) package.

What is the operating temperature range for this TVS diode?

The operating junction temperature range is -55°C to 150°C.

Is the SMBJ40A-E3/52 RoHS compliant?

Yes, the E3 suffix indicates it is RoHS-compliant and lead-free.

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