SMAJ33A-TR The SMAJ33A-TR is a unidirectional TVS diode from STMicroelectronics with 33V reverse standoff voltage, 69.7V clamping voltage, and 400W peak pulse power capability. It is surface-mount packaged in DO-214AC (SMA).
Mfr Part #:

SMAJ33A-TR

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The SMAJ33A-TR is a unidirectional TVS diode from STMicroelectronics with 33V reverse standoff voltage, 69.7V clamping voltage, and 400W peak pulse power capability. It is surface-mount packaged in DO-214AC (SMA).
Total Stock: 466,656 pcs
$ Price Range: $0.09 - $0.56

SMAJ33A-TR Available from 4 distributors

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440,000 pcs
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SMAJ33A-TR Specifications Quick View

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

SMAJ33A-TR Description

Short technical summary and product information.

The SMAJ33A-TR is a unidirectional TVS (Transient Voltage Suppressor) diode from STMicroelectronics designed to protect sensitive electronic circuits from overvoltage transients. It features a reverse standoff voltage of 33 V and a maximum clamping voltage of 69.7 V when subjected to a 33 A peak pulse current (8/20 µs waveform). With a peak pulse power rating of 400 W, it is suitable for general purpose circuit protection applications.

 

The device utilizes a Zener technology structure and provides protection for a single channel with unidirectional polarity. It is designed for surface mount assembly and is offered in the compact DO-214AC (SMA) package. The operating temperature range spans from -55°C to 150°C, allowing operation in a wide range of environments. The component does not include power line protection and is intended for general purpose use.

 

The SMAJ33A-TR is compliant with RoHS3 regulations and has a Moisture Sensitivity Level (MSL) rating of 1 (unlimited). It is also classified as unaffected under REACH. These attributes, combined with its electrical specifications, make it a viable choice for overvoltage protection in consumer, industrial, and communication equipment.

SMAJ33A-TR Quick Information

Product Type: TVS Diode (Unidirectional)
Series: SMAJ
Canonical Name: TVS Diode, Unidirectional, 33V Reverse Standoff, 400W, DO-214AC (SMA)
Subcategory: Unidirectional

SMAJ33A-TR Compliance

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

SMAJ33A-TR Estimated Pricing

Qty Low High
1+ $0.56 $0.56
10+ $0.31 $0.31
100+ $0.22 $0.22
500+ $0.18 $0.18
1,000+ $0.15 $0.15
2,500+ $0.13 $0.13
5,000+ $0.10 $0.10
10,000+ $0.09 $0.09

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

SMAJ33A-TR Features

  • 33V reverse standoff voltage rating.
  • 69.7V clamping voltage at 33A.
  • 400W peak pulse power capability.
  • Unidirectional Zener TVS protection.
  • Surface mount DO-214AC (SMA) package.

SMAJ33A-TR Applications

  • General purpose circuit protection applications.
  • Suitable for sensitive electronics ESD protection.
  • Used in power supply input protection.
  • Ideal for consumer electronics transient suppression.

SMAJ33A-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ33A-TR?

The reverse standoff voltage is 33 V.

What is the clamping voltage of this TVS diode?

The maximum clamping voltage is 69.7 V at a peak pulse current of 33 A (8/20 µs waveform).

What is the peak pulse current rating?

The peak pulse current is 33 A (8/20 µs waveform).

What is the peak pulse power rating?

The peak pulse power rating is 400 W.

What package is the SMAJ33A-TR available in?

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

Is the SMAJ33A-TR unidirectional or bidirectional?

It is a unidirectional TVS diode.

What is the operating temperature range?

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

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