SMBJ28A-TR SMBJ28A-TR is a 600W unidirectional Zener TVS diode from STMicroelectronics, with 28V reverse standoff voltage and 45.4V clamping voltage, in a surface mount DO-214AA (SMB) package.
Mfr Part #:

SMBJ28A-TR

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMBJ28A-TR is a 600W unidirectional Zener TVS diode from STMicroelectronics, with 28V reverse standoff voltage and 45.4V clamping voltage, in a surface mount DO-214AA (SMB) package.
Total Stock: 327,176 pcs
$ Price Range: $0.10 - $0.48

SMBJ28A-TR Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
325,000 pcs
325000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,176 pcs
2176 pcs On Request 1 On Request On Request On Request On Request On Request

SMBJ28A-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
Reverse Standoff Voltage (Vrwm)
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMBJ28A-TR Description

Short technical summary and product information.

The SMBJ28A-TR is a unidirectional Zener TVS diode designed for general purpose transient voltage suppression. It features a reverse standoff voltage of 28V and a maximum clamping voltage of 45.4V at a peak pulse current of 13.8A. The device can handle 600W of peak pulse power (10/1000μs waveform), making it suitable for protecting sensitive electronics from voltage transients.

 

This TVS diode is housed in a DO-214AA (SMB) surface mount package, which is ideal for automated assembly and space-constrained designs. It operates over a junction temperature range of -55°C to 150°C, ensuring reliable performance in harsh environments. The part is RoHS3 compliant and has an MSL of 1 (unlimited), simplifying handling and storage.

 

Typical applications include general purpose circuit protection in consumer, industrial, and communication equipment. The SMBJ28A-TR is a direct replacement for industry-standard SMBJ28A devices and is available in tape and reel packaging for high-volume production.

SMBJ28A-TR Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ28A-TR TVS Diode, 28V Reverse Standoff, 45.4V Clamping, 600W, DO-214AA
Subcategory: Zener TVS

SMBJ28A-TR Compliance

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

SMBJ28A-TR Estimated Pricing

Qty Low High
1+ $0.48 $0.48
10+ $0.30 $0.30
100+ $0.21 $0.21
500+ $0.17 $0.17
1,000+ $0.16 $0.16
2,500+ $0.12 $0.12
5,000+ $0.11 $0.11
10,000+ $0.10 $0.10

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

SMBJ28A-TR Features

  • 600W peak pulse power dissipation.
  • 28V reverse standoff voltage rating.
  • 45.4V maximum clamping voltage.
  • Surface mount DO-214AA (SMB) package.
  • Unidirectional Zener TVS protection.

SMBJ28A-TR Applications

  • General purpose transient voltage suppression.
  • Protection for power supply lines.
  • Used in consumer electronics equipment.
  • Ideal for industrial control systems.

SMBJ28A-TR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ28A-TR?

The reverse standoff voltage (Vrwm) is 28V.

What is the clamping voltage of this TVS diode?

The maximum clamping voltage (Vc) at Ipp is 45.4V.

What is the peak pulse power rating?

The peak pulse power (Ppp) is 600W.

What package does the SMBJ28A-TR come in?

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

What is the peak pulse current capability?

The peak pulse current (Ipp) is 13.8A.

Is this device unidirectional?

Yes, it has 1 unidirectional channel.

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