SA28 SA28 is a 500W unidirectional TVS diode from Littelfuse Inc. It features a reverse standoff voltage of 28V and a clamping voltage of 47.67V at 11.2A peak pulse current.
Mfr Part #:

SA28

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SA28 is a 500W unidirectional TVS diode from Littelfuse Inc. It features a reverse standoff voltage of 28V and a clamping voltage of 47.67V at 11.2A peak pulse current.
Total Stock: 48 pcs

SA28 Available from 1 distributor

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SA28 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Forward Surge Current (8.3ms)
Forward Voltage
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Power
Power Line Protection
Steady State Power Dissipation
Supplier Device Package
Termination Style
Type
Unidirectional Channels
Voltage

SA28 Description

Short technical summary and product information.

The SA28 is a 500W unidirectional TVS diode designed to protect sensitive electronic equipment from voltage transients. It is part of Littelfuse's SA series, featuring a glass passivated chip junction in a DO-15 package. The device offers a peak pulse power dissipation of 500W at 10/1000μs waveform, with a clamping voltage of 47.67V at 11.2A. It has a fast response time of less than 1.0ps from 0V to breakdown voltage minimum. The SA28 is suitable for general purpose applications such as I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. It is through-hole mounted with axial leads, operating over a temperature range of -55°C to 175°C. The device is halogen free, RoHS compliant, and has a matte tin lead-free finish.

SA28 Quick Information

Product Type: TVS Diode
Series: SA
Canonical Name: SA28 TVS Diode, 500W, Unidirectional, DO-204AC (DO-15)
Subcategory: Unidirectional TVS Diode

SA28 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free (Pb-free E3)

SA28 Features

  • 500W peak pulse power dissipation.
  • Unidirectional TVS protection.
  • Clamping voltage of 47.67V.
  • Through-hole DO-204AC package.
  • Operating temperature -55°C to 175°C.

SA28 Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection.
  • Used in telecom and computer equipment.
  • Ideal for consumer electronics.
  • General purpose transient suppression.

SA28 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the SA28?

The clamping voltage is 47.67V at 11.2A (10/1000μs waveform).

What is the peak pulse current rating?

The peak pulse current is 11.2A at 10/1000μs waveform.

What package is the SA28 available in?

The SA28 is available in a DO-204AC (DO-15) axial leaded package.

What is the peak pulse power dissipation?

The peak pulse power dissipation is 500W at 10/1000μs waveform.

What is the operating temperature range?

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

Is the SA28 RoHS compliant?

Yes, it is listed as RoHS3 compliant, but this is unverified.

What is the mounting type?

Through hole with axial leads.

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