SA22A The SA22A is a 500W unidirectional TVS diode from ON Semiconductor with a 22V reverse stand-off voltage and 35.5V clamping voltage. It is housed in a through-hole DO-15 package.
Mfr Part #:

SA22A

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The SA22A is a 500W unidirectional TVS diode from ON Semiconductor with a 22V reverse stand-off voltage and 35.5V clamping voltage. It is housed in a through-hole DO-15 package.
Total Stock: 280 pcs
$ Price Range: $0.55

SA22A Available from 1 distributor

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280 pcs
280 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

SA22A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Breakdown Voltage (Vbr)
Current
Junction Temperature
Lead Style
Mounting Type
Non-Repetitive Peak Forward Surge Current
Operating Temperature
Power
Power Dissipation
Power Line Protection
Reverse Leakage @ VRWM
Reverse Stand-off Voltage (VRWM)
Storage Temperature Range
Supplier Device Package
Tape & Reel
Test Current (IT)
Type
Unidirectional Channels
Voltage

SA22A Description

Short technical summary and product information.

The SA22A is a 500W transient voltage suppressor (TVS) diode from ON Semiconductor, designed for general-purpose circuit protection. It features a reverse stand-off voltage (VRWM) of 22V and a breakdown voltage range of 24.4V to 26.9V at a test current of 1 mA. The device clamps transient overvoltages to 35.5V at a peak pulse current (IPPM) of 14.1A, based on a 10/1000 µs waveform.

 

This unidirectional TVS diode offers a peak pulse power dissipation of 500W and a non-repetitive peak forward surge current rating of 70A (8.3 ms half-sine wave). It has a low reverse leakage current of 1 µA at the stand-off voltage and a fast response time typically less than 1.0 ps. The device is glass passivated for reliability and operates over a junction temperature range of -55°C to 175°C.

 

The SA22A is supplied in a through-hole DO-204AC (DO-15) axial leaded package, suitable for automated insertion or manual assembly. It is intended for use in power supplies, industrial controls, and other electronic systems requiring robust transient protection.

SA22A Quick Information

Product Type: TVS Diode
Series: SA
Canonical Name: SA22A Transient Voltage Suppressor Diode
Subcategory: Unidirectional TVS Diode

SA22A Compliance

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

SA22A Estimated Pricing

Qty Low High
550+ $0.55 $0.55

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

SA22A Features

  • 500W peak pulse power dissipation.
  • 22V reverse stand-off voltage.
  • 35.5V clamping voltage at 14.1A.
  • Through-hole DO-15 axial package.
  • Fast response time less than 1.0 ps.

SA22A Applications

  • Used in power supply transient protection.
  • Ideal for industrial control systems.
  • Suitable for general-purpose circuit protection.

SA22A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse stand-off voltage (VRWM) of the SA22A?

The reverse stand-off voltage (VRWM) is 22 V.

What is the breakdown voltage range of the SA22A?

The breakdown voltage (VBR) is 24.4 V minimum and 26.9 V maximum at a test current of 1 mA.

What is the clamping voltage of the SA22A?

The clamping voltage is 35.5 V at a peak pulse current (IPPM) of 14.1 A.

What is the peak pulse current (IPPM) rating of the SA22A?

The peak pulse current (IPPM) is 14.1 A on a 10/1000 µs waveform.

What package does the SA22A come in?

The SA22A is available in a DO-204AC (DO-15) axial leaded through-hole package.

What is the operating temperature range for the SA22A?

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

Is the SA22A a unidirectional or bidirectional TVS diode?

The SA22A is a unidirectional TVS diode, with 1 unidirectional channel.

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