SMAJ20A TVS diode, unidirectional, 20V reverse standoff voltage, 32.4V max clamping, 400W peak pulse power, DO-214AC (SMA) package.
Mfr Part #:

SMAJ20A

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TVS diode, unidirectional, 20V reverse standoff voltage, 32.4V max clamping, 400W peak pulse power, DO-214AC (SMA) package.
Total Stock: 10,954 pcs
$ Price Range: $0.06 - $0.48

SMAJ20A Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
7,000 pcs
7000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
3,834 pcs
3834 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
120 pcs
120 pcs On Request 1 On Request On Request On Request On Request On Request

SMAJ20A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMAJ20A Description

Short technical summary and product information.

The SMAJ20A is a unidirectional TVS diode from Littelfuse designed for protecting sensitive electronics from voltage transients. It features a reverse standoff voltage of 20V and a maximum clamping voltage of 32.4V at 12.3A peak pulse current. With a peak pulse power rating of 400W (10/1000µs waveform), it is suitable for general purpose circuit protection.

 

This device is packaged in a surface mount DO-214AC (SMA) package, enabling compact PCB layouts. It operates over a temperature range of -65°C to 150°C. The SMAJ series is known for excellent clamping capability and fast response time.

 

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

SMAJ20A Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: TVS Diode, Unidirectional, 20V Standoff, 400W, DO-214AC (SMA)
Subcategory: Unidirectional TVS Diodes

SMAJ20A Compliance

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

SMAJ20A Estimated Pricing

Qty Low High
1+ $0.48 $0.48
10+ $0.30 $0.30
100+ $0.19 $0.19
500+ $0.14 $0.14
1,000+ $0.12 $0.12
2,000+ $0.11 $0.11
5,000+ $0.08 $0.08
10,000+ $0.07 $0.07
15,000+ $0.07 $0.07
25,000+ $0.07 $0.07
35,000+ $0.06 $0.06

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

SMAJ20A Features

  • Unidirectional TVS diode with 20V standoff.
  • Maximum clamping voltage of 32.4V.
  • 400W peak pulse power capability.
  • Surface mount DO-214AC (SMA) package.
  • Operating temperature range -65°C to 150°C.

SMAJ20A Applications

  • Protect I/O interfaces from voltage transients.
  • Safeguard VCC bus in electronic circuits.
  • Used in telecom and computer equipment.
  • Ideal for industrial and consumer electronics.

SMAJ20A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ20A?

The reverse standoff voltage is 20V.

What is the clamping voltage of the SMAJ20A?

The maximum clamping voltage is 32.4V.

What is the peak pulse current rating?

The peak pulse current is 12.3A (10/1000µs waveform).

What is the peak pulse power of the SMAJ20A?

The peak pulse power is 400W (10/1000µs waveform).

What package is the SMAJ20A available in?

It is available in a DO-214AC (SMA) surface mount package.

Is the SMAJ20A unidirectional?

Yes, it has 1 unidirectional channel.

What is the operating temperature range of the SMAJ20A?

It operates from -65°C to 150°C.

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