SA20CA SA20CA is a 20V bidirectional TVS diode from Littelfuse Inc. It offers 500W peak pulse power dissipation and 32.4V clamping voltage in a through-hole DO-15 package.
Mfr Part #:

SA20CA

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SA20CA is a 20V bidirectional TVS diode from Littelfuse Inc. It offers 500W peak pulse power dissipation and 32.4V clamping voltage in a through-hole DO-15 package.
✓ Total Stock: 30 pcs
$ Price Range: $0.18 - $0.71

SA20CA Available from 1 distributor

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✓ Non-Authorised
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SA20CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
Halogen Free
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Supplier Device Package
Type
Voltage

SA20CA Description

Short technical summary and product information.

The SA20CA is a bidirectional TVS diode from Littelfuse Inc. designed to protect sensitive electronic equipment from voltage transients caused by lightning and other transient events. It is part of the SA series offering 500W peak pulse power capability at 10/1000µs waveform.

 

Key electrical characteristics include a reverse standoff voltage of 20V, typical breakdown voltage of 22.2V at 1mA test current, and clamping voltage of 32.4V at 15.7A peak pulse current. The device features a fast response time of less than 1 picosecond and low incremental surge resistance. Typical leakage current is less than 1µA for breakdown voltages above 13V.

 

The SA20CA is housed in a through-hole DO-15 (DO-204AC) axial leaded package with matte tin lead-free plating. It is halogen free and RoHS compliant. Operating junction temperature range is -65°C to 175°C, with steady-state power dissipation of 3.0W at 75°C lead temperature. The plastic package is flammability rated V-0 per UL.

 

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. The device meets IEC 61000-4-2 ESD protection (30kV air/contact) and IEC 61000-4-4 EFT protection.

SA20CA Quick Information

Product Type: TVS Diode
Series: SA
Canonical Name: TVS Diode SA20CA Bidirectional 20V 500W DO-15
Subcategory: Bidirectional TVS Diode

SA20CA Compliance

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

SA20CA Estimated Pricing

Qty Low High
1+ $0.71 $0.71
10+ $0.44 $0.44
100+ $0.28 $0.28
500+ $0.22 $0.22
1,000+ $0.20 $0.20
2,000+ $0.18 $0.18
4,000+ $0.18 $0.18
8,000+ $0.18 $0.18

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

SA20CA Features

  • 500W peak pulse power dissipation at 10/1000µs.
  • Fast response time less than 1 picosecond.
  • Bidirectional protection for single channel.
  • Through-hole DO-15 axial leaded package.
  • RoHS compliant and halogen free.

SA20CA Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection in electronics.
  • Used in telecom, computer, and industrial systems.
  • Guards against ESD and EFT per IEC standards.

SA20CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SA20CA?

The reverse standoff voltage is 20V.

What is the breakdown voltage of the SA20CA?

The typical breakdown voltage is 22.2V at 1mA test current.

What is the clamping voltage of the SA20CA?

The clamping voltage is 32.4V at 15.7A peak pulse current (10/1000µs).

What is the peak pulse current rating of the SA20CA?

The peak pulse current is 15.7A for a 10/1000µs waveform.

What package is the SA20CA available in?

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

What is the response time of the SA20CA?

The response time is less than 1 picosecond.

What are the typical applications of the SA20CA?

General purpose transient voltage protection, including I/O interfaces, VCC bus, telecom, computer, industrial, and consumer electronics.

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