SA20A SA20A is a unidirectional TVS diode from Littelfuse's SA series. It offers 500W peak pulse power protection with 20V reverse standoff voltage.
Mfr Part #:

SA20A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SA20A is a unidirectional TVS diode from Littelfuse's SA series. It offers 500W peak pulse power protection with 20V reverse standoff voltage.
Total Stock: 115 pcs
$ Price Range: $0.10 - $0.64

SA20A Available from 1 distributor

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SA20A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Forward Voltage
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Reverse Standoff Voltage
Steady State Power Dissipation
Supplier Device Package
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

SA20A Description

Short technical summary and product information.

The SA20A is a unidirectional TVS (Transient Voltage Suppression) diode manufactured by Littelfuse Inc. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. The device is part of the SA series of axial-leaded TVS diodes.

 

It has a reverse standoff voltage (VRWM) of 20V and a clamping voltage of 32.4V at a peak pulse current of 15.7A (10/1000μs waveform). The device can handle 500W peak pulse power dissipation. It is a Zener-type unidirectional diode with no power line protection.

 

The SA20A is housed in a DO-204AC (DO-15) through-hole package with axial leads. It operates over a temperature range of -55°C to 175°C. The package is flame retardant rated V-0 and features matte tin lead-free plating.

 

As part of the SA series, this TVS diode offers fast response time (typically less than 1.0ps from 0V to breakdown voltage), low incremental surge resistance, and ESD protection up to 30kV (air and contact) per IEC 61000-4-2. The device is halogen-free and RoHS compliant.

SA20A Quick Information

Product Type: TVS Diode
Series: SA
Canonical Name: SA20A Littelfuse TVS Diode, Unidirectional, 20V Reverse Standoff, DO-204AC (DO-15)
Subcategory: Unidirectional

SA20A Compliance

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

SA20A Estimated Pricing

Qty Low High
1+ $0.64 $0.64
10+ $0.40 $0.40
100+ $0.25 $0.25
500+ $0.19 $0.19
1,000+ $0.17 $0.17
2,000+ $0.15 $0.15
4,000+ $0.12 $0.12
8,000+ $0.11 $0.11
12,000+ $0.10 $0.10
20,000+ $0.10 $0.10

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

SA20A Features

  • 500W peak pulse power dissipation.
  • 20V reverse standoff voltage rating.
  • Unidirectional Zener TVS protection.
  • DO-204AC (DO-15) through-hole package.
  • Fast response time under 1.0 picosecond.

SA20A Applications

  • Protect I/O interfaces from voltage transients.
  • Safeguard VCC bus in telecom equipment.
  • Used in industrial and consumer electronics.
  • Ideal for lightning surge protection applications.

SA20A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SA20A?

20V.

What is the clamping voltage of the SA20A?

32.4V.

What is the peak pulse current rating?

15.7A at 10/1000μs waveform.

What package does the SA20A come in?

DO-204AC (DO-15) through-hole package.

Is the SA20A unidirectional or bidirectional?

Unidirectional.

What is the operating temperature range?

-55°C to 175°C.

What is the peak pulse power rating?

500W at 10/1000μs waveform.

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