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SMAJ170A The SMAJ170A is a 400W surface mount TVS diode from Littelfuse, designed for protecting sensitive electronics from voltage transients. Key specs include 170V reverse standoff voltage and 275V clamping voltage.
Mfr Part #:

SMAJ170A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The SMAJ170A is a 400W surface mount TVS diode from Littelfuse, designed for protecting sensitive electronics from voltage transients. Key specs include 170V reverse standoff voltage and 275V clamping voltage.
✓ Total Stock: 300 pcs

SMAJ170A Available from 1 distributor

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Bristol Electronics ✓
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300 pcs
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SMAJ170A 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
Response Time
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
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SMAJ170A Description

Short technical summary and product information.

The Littelfuse SMAJ170A is a unidirectional transient voltage suppression (TVS) diode designed for general-purpose circuit protection. It provides a reverse standoff voltage of 170 V and a maximum clamping voltage of 275 V under a 10/1000µs waveform, with a peak pulse power rating of 400 W. The device responds to transient events in less than 1.0 ps (typical) and meets IEC 61000-4-2 ESD protection up to 30 kV (air and contact).

 

This TVS diode is housed in a compact DO-214AC (SMA) surface-mount package, suitable for automated assembly. It features glass passivated junction for reliability and operates across a junction temperature range of -65°C to 150°C. The device is RoHS3 compliant, halogen free, and has an MSL rating of 1 (unlimited).

 

Typical applications include protecting I/O interfaces, VCC buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic devices. The SMAJ170A is a single-channel unidirectional device with a peak forward surge current rating of 60 A (8.3ms).

SMAJ170A Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: Littelfuse SMAJ170A TVS Diode, 170V Reverse Standoff, 275V Clamping, DO-214AC
Subcategory: Unidirectional TVS Diode

SMAJ170A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: Non-Compliant
Lead Free: Pb-free E3

SMAJ170A Features

  • 400W peak pulse power at 10/1000µs.
  • 170V reverse standoff voltage protection.
  • 275V clamping voltage with 1.5A peak current.
  • Fast response time less than 1.0ps.
  • Unidirectional TVS diode in DO-214AC (SMA).

SMAJ170A Applications

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

SMAJ170A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage (VRWM) of SMAJ170A?

170 V

What is the clamping voltage of SMAJ170A?

275 V (maximum at 10/1000µs waveform)

What is the peak pulse current rating of SMAJ170A?

1.5 A (maximum at 10/1000µs waveform)

What package does SMAJ170A come in?

DO-214AC (SMA) surface mount package

What is the peak pulse power rating of SMAJ170A?

400 W (maximum at 10/1000µs waveform)

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