SMA6J40A-TR The SMA6J40A-TR is a 600W unidirectional Zener TVS diode from STMicroelectronics with a 40V reverse standoff voltage and 73.6V clamping voltage. It is housed in a surface-mount DO-214AC (SMA) package.
Mfr Part #:

SMA6J40A-TR

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The SMA6J40A-TR is a 600W unidirectional Zener TVS diode from STMicroelectronics with a 40V reverse standoff voltage and 73.6V clamping voltage. It is housed in a surface-mount DO-214AC (SMA) package.
Total Stock: 25,000 pcs
$ Price Range: $0.19 - $0.96

SMA6J40A-TR Available from 1 distributor

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SMA6J40A-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
Voltage - Breakdown (Min)
Voltage - Reverse Standoff (Typ)

SMA6J40A-TR Description

Short technical summary and product information.

The SMA6J40A-TR is a unidirectional Zener TVS diode designed to protect sensitive electronics from voltage transients. It features a 40V reverse standoff voltage and a minimum breakdown voltage of 44.4V, clamping transients at a maximum of 73.6V when subjected to a 48A peak pulse current (8/20µs waveform). With a peak pulse power rating of 600W, this device is suitable for general-purpose transient suppression in a wide range of applications.

 

The diode is housed in a compact DO-214AC (SMA) surface-mount package, enabling efficient use of board space in modern electronic designs. It operates over a junction temperature range of -55°C to 175°C, ensuring reliable performance in demanding thermal environments. The SMA6J40A-TR is not intended for power line protection and is best suited for signal line and low-voltage DC bus protection.

SMA6J40A-TR Quick Information

Product Type: TVS Diode
Series: SMA6J
Canonical Name: STMicroelectronics SMA6J40A-TR TVS Diode, 40V Reverse Standoff, 600W Peak Pulse Power, DO-214AC (SMA)
Subcategory: Zener Clamping Diode

SMA6J40A-TR Compliance

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

SMA6J40A-TR Estimated Pricing

Qty Low High
1+ $0.96 $0.96
10+ $0.59 $0.59
100+ $0.39 $0.39
500+ $0.30 $0.30
1,000+ $0.25 $0.25
2,500+ $0.24 $0.24
5,000+ $0.20 $0.20
10,000+ $0.19 $0.19

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

SMA6J40A-TR Features

  • 600W peak pulse power dissipation.
  • 40V reverse standoff voltage.
  • 73.6V maximum clamping voltage at 48A.
  • Surface mount DO-214AC (SMA) package.
  • Operates from -55°C to 175°C junction temperature.

SMA6J40A-TR Applications

  • Protects sensitive electronics from voltage transients.
  • Suitable for general-purpose signal line protection.
  • Used in low-voltage DC bus transient suppression.
  • Ideal for surface mount PCB designs.

SMA6J40A-TR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMA6J40A-TR?

The reverse standoff voltage is 40V.

What is the clamping voltage of this TVS diode?

The maximum clamping voltage is 73.6V at a peak pulse current of 48A (8/20µs waveform).

What is the peak pulse power rating?

The peak pulse power rating is 600W.

What package does the SMA6J40A-TR come in?

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

What is the operating temperature range?

The operating junction temperature range is -55°C to 175°C.

Is this TVS diode suitable for power line protection?

No, it is not intended for power line protection.

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