SMAJ28A-Q The Bourns SMAJ28A-Q is a Transient Voltage Suppressor (TVS) diode designed for overvoltage protection. It offers 400W of power dissipation in a compact SMA package.
Mfr Part #:

SMAJ28A-Q

Available from 1 distributors
Mfr Name: Bourns
Bourns
The Bourns SMAJ28A-Q is a Transient Voltage Suppressor (TVS) diode designed for overvoltage protection. It offers 400W of power dissipation in a compact SMA package.
Total Stock: 9,000 pcs
$ Price Range: $0.55

SMAJ28A-Q Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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9,000 pcs
9000 pcs On Request 1 On Request On Request 18+ On Request On Request

SMAJ28A-Q Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Breakdown Voltage
Breakdown Voltage Maximum
Clamping Voltage (Maximum @ 10/1000 µs)
Clamping Voltage (Maximum @ Ipp (10/1000 μs)
Current
Mounting Type
Operating Temperature
Operating Temperature Range
Peak Forward Surge Current
Peak Pulse Current (Maximum @ 10/1000 µs)
Peak Pulse Power Dissipation
Power
Power Line Protection
Reverse Leakage (Maximum @ @VRWM)
Standoff Voltage
Storage Temperature Range
Supplier Device Package
Type
Unidirectional Channels
Voltage
Working Peak Reverse Voltage

SMAJ28A-Q Description

Short technical summary and product information.

The Bourns SMAJ28A-Q is a surface mount Transient Voltage Suppressor (TVS) diode from the SMAJ-Q series. It is designed to protect power buses and I/O interfaces from overvoltage transients.

 

Key electrical characteristics include a 400W peak pulse power dissipation (1ms) and a 40A peak forward surge current (8.3ms). The device operates over a temperature range of -55°C to +150°C.

 

This TVS diode is suitable for applications in telecom, computer, industrial, and consumer electronics. Its SMA package (DO-214AC) is compatible with standard pick-and-place equipment, and its flat configuration minimizes roll-away.

 

The series offers a wide range of standoff voltages from 5V to 220V, with fast response times of less than 1.0 picosecond. The SMAJ28A-Q specifically has a working peak reverse voltage of 28V and a maximum clamping voltage of 45.4V at 8.8A peak pulse current.

SMAJ28A-Q Quick Information

Product Type: TVS Diode
Series: SMAJ-Q
Canonical Name: Bourns SMAJ28A-Q Transient Voltage Suppressor Diode
Subcategory: TVS Diodes

SMAJ28A-Q Compliance

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

SMAJ28A-Q Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

SMAJ28A-Q Features

  • 400W peak pulse power dissipation.
  • Surface mount SMA package.
  • Wide standoff voltage range.
  • Fast response time.
  • Automotive and telecom applications.

SMAJ28A-Q Applications

  • Protects power buses.
  • Protects I/O interfaces.
  • Handles overvoltage transients.
  • Used in telecom equipment.
  • Suitable for industrial electronics.

SMAJ28A-Q FAQs

5 frequently asked questions generated from this part’s specifications.
What is the peak pulse power dissipation of the SMAJ28A-Q?

The peak pulse power dissipation is 400 Watts for a 1 ms pulse.

What is the operating temperature range for this TVS diode?

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

What is the working peak reverse voltage for the SMAJ28A-Q?

The working peak reverse voltage is 28V.

What is the maximum clamping voltage at 8.8A?

The maximum clamping voltage at 8.8A is 45.4V.

What package type is the SMAJ28A-Q supplied in?

The SMAJ28A-Q is supplied in a DO-214AC, SMA package.

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