SMAJ28CA-TR SMAJ28CA-TR is a bidirectional TVS diode from STMicroelectronics with 28V reverse standoff voltage and 59V clamping voltage. It offers 400W peak pulse power capability in a surface-mount DO-214AC (SMA) package.
Mfr Part #:

SMAJ28CA-TR

Available from 5 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMAJ28CA-TR is a bidirectional TVS diode from STMicroelectronics with 28V reverse standoff voltage and 59V clamping voltage. It offers 400W peak pulse power capability in a surface-mount DO-214AC (SMA) package.
Total Stock: 1,028,429 pcs
$ Price Range: $0.10 - $0.61

SMAJ28CA-TR Available from 5 distributors

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SMAJ28CA-TR Specifications Quick View

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

SMAJ28CA-TR Description

Short technical summary and product information.

The SMAJ28CA-TR is a bidirectional Zener-type TVS diode from STMicroelectronics designed for general purpose transient voltage suppression. It features a typical reverse standoff voltage of 28V and a maximum clamping voltage of 59V at a peak pulse current of 39A (8/20µs waveform). The device can handle 400W of peak pulse power, making it suitable for protecting sensitive electronics from voltage spikes.

 

This TVS diode is housed in a surface-mount DO-214AC (SMA) package, which is compact and suitable for automated assembly. It supports an operating temperature range of -55°C to 150°C, allowing use in harsh environments. The component does not include power line protection and is intended for general purpose applications such as I/O interfaces, power supply lines, and data lines.

 

The SMAJ28CA-TR is supplied in tape and reel packaging for high-volume manufacturing. Its bidirectional configuration allows it to clamp both positive and negative transients with a single device, simplifying circuit design and reducing component count.

SMAJ28CA-TR Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: SMAJ28CA-TR TVS Diode, 28V Reverse Standoff, 59V Clamping, 400W, DO-214AC (SMA)
Subcategory: Bidirectional TVS Diode

SMAJ28CA-TR Compliance

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

SMAJ28CA-TR Estimated Pricing

Qty Low High
1+ $0.61 $0.61
10+ $0.37 $0.37
100+ $0.24 $0.24
500+ $0.18 $0.18
1,000+ $0.15 $0.15
5,000+ $0.12 $0.12
10,000+ $0.12 $0.12
25,000+ $0.10 $0.10
50,000+ $0.10 $0.10

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

SMAJ28CA-TR Features

  • Bidirectional TVS diode for transient protection.
  • 28V reverse standoff voltage rating.
  • 59V maximum clamping voltage.
  • 400W peak pulse power dissipation.
  • Surface-mount DO-214AC (SMA) package.

SMAJ28CA-TR Applications

  • Protects sensitive electronics from voltage transients.
  • Suitable for general purpose circuit protection.
  • Used in power supply and I/O interfaces.
  • Ideal for space-constrained surface-mount designs.

SMAJ28CA-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SMAJ28CA-TR?

The reverse standoff voltage is 28V typical.

What is the clamping voltage of SMAJ28CA-TR?

The maximum clamping voltage is 59V.

What is the peak pulse current rating?

The peak pulse current is 39A (8/20µs waveform).

What package does SMAJ28CA-TR come in?

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

What is the peak pulse power rating?

The peak pulse power is 400W.

What is the operating temperature range?

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

Is SMAJ28CA-TR bidirectional?

Yes, it has 1 bidirectional channel.

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