SMAJ180A SMAJ180A is a unidirectional TVS diode from Littelfuse with 180V reverse standoff voltage, 292V clamping voltage, and 400W peak pulse power dissipation. It comes in a surface mount DO-214AC (SMA) package.
Mfr Part #:

SMAJ180A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMAJ180A is a unidirectional TVS diode from Littelfuse with 180V reverse standoff voltage, 292V clamping voltage, and 400W peak pulse power dissipation. It comes in a surface mount DO-214AC (SMA) package.
Total Stock: 34 pcs

SMAJ180A Available from 1 distributor

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SMAJ180A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Forward Surge Current
Forward Voltage
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Storage Temperature Range
Supplier Device Package
Tape & Reel
Technology
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

SMAJ180A Description

Short technical summary and product information.

The SMAJ180A is a unidirectional TVS diode from Littelfuse, part of the SMAJ series, designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It offers a reverse standoff voltage of 180V and a clamping voltage of 292V.

 

Key electrical specifications include a peak pulse power dissipation of 400W (10/1000μs waveform), a peak pulse current of 1.4A, and a fast response time of less than 1.0ps. The device can handle a forward surge current of 60A (8.3ms single half sine wave) and operates over a junction temperature range of -65°C to 150°C. Typical thermal resistance is 30°C/W junction-to-lead and 120°C/W junction-to-ambient.

 

The SMAJ180A is housed in a surface mount DO-214AC (SMA) package, suitable for compact PCB layouts. It is ideal for protecting I/O interfaces, Vcc buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic applications. The diode features a glass passivated junction and built-in strain relief, with ESD protection per IEC 61000-4-2 (30kV air/contact) and EFT protection per IEC 61000-4-4.

SMAJ180A Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: TVS Diode, Unidirectional, 180V Reverse Standoff, 400W, DO-214AC (SMA), Littelfuse
Subcategory: Unidirectional TVS Diode

SMAJ180A Compliance

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

SMAJ180A Features

  • 400W peak pulse power dissipation.
  • 180V reverse standoff voltage.
  • 292V clamping voltage at 1.4A.
  • Fast response time under 1.0ps.
  • Surface mount DO-214AC (SMA) package.

SMAJ180A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for Vcc bus protection circuits.
  • Suitable for telecom and consumer electronics.
  • Used in industrial equipment protection.

SMAJ180A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ180A?

The reverse standoff voltage is 180V.

What is the clamping voltage of the SMAJ180A?

The clamping voltage is 292V.

What is the peak pulse current rating?

The peak pulse current is 1.4A.

What package does the SMAJ180A come in?

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

What is the peak pulse power rating?

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

What is the forward surge current capability?

The forward surge current is 60A (8.3ms single half sine wave).

What is the operating temperature range?

The operating junction temperature range is -65°C to 150°C.

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