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Vishay SMAJ18AHM3AH Transient Voltage Suppressor

The Vishay SMAJ18AHM3AH is a high-performance surface mount transient voltage suppressor designed to safeguard sensitive electronic equipment from voltage transients and surges. It features a peak pulse power dissipation of 400 W with a very fast response time, making it ideal for automotive, industrial, and telecommunication applications. The device complies with RoHS and AEC-Q101 standards, ensuring reliability and safety in demanding environments. Its low-profile SMA package supports automated PCB assembly, providing robust circuit protection and enhancing system longevity.

Authorized Distributors
Source:Newark
Part No:SMAJ18AHM3_A/H
Stock:4719
Inv Date:06-09-2026
Price: Unit price: $0.621
Buy/RFQ:
Source:DigiKey
Part No:SMAJ18AHM3_A/H
Stock:3250
Inv Date:06-09-2026
Price: Unit price: $0.68
Buy/RFQ:
Part No:SMAJ18AHM3_A/H
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.134
Buy/RFQ:
Part No:SMAJ18AHM3-A/H
Stock:0
Inv Date:06-10-2026
Price: N/A
Buy/RFQ:

Vishay SMAJ18AHM3AH Transient Voltage Suppressor Specifications:

  • Peak pulse power dissipation: 400 W with 10/1000 us waveform
  • Peak surge current: 40 A
  • Maximum clamping voltage at 5 A: 18.2 V
  • Maximum reverse leakage current: 0.91 µA
  • Maximum breakdown voltage: 20.0 V at 1 mA
  • Temperature range: -55°C to +150°C
  • Thermal resistance junction to ambient: 120 °C/W
  • Thermal resistance junction to lead: 30 °C/W
  • Package: SMA (D0-214AC), 7° width, surface mount, RoHS and AEC-Q101 compliant
  • Terminals: Matte tin plated leads, solderable per J-STD-002
  • Mechanical dimensions: length 0.177 inches (4.50 mm), width 0.157 inches (3.99 mm), height 0.090 inches (2.29 mm)
  • Mounting: On minimum recommended copper pads for optimal heat dissipation

Buy the Vishay Series Transient Voltage Suppressor: SMAJ18AHM3AH

Purchase the Vishay SMAJ18AHM3AH transient voltage suppressor online today. Engineered for high pulse power, rapid response, and robust protection, it ensures your sensitive electronics are shielded from voltage transients effectively. Its compliance with RoHS and AEC-Q101 standards guarantees reliability in automotive, industrial, and communication systems. Designed with surface-mount SMA package for automated assembly, this device provides a compact, durable, and efficient solution to safeguard against switching surges and voltage spikes, enhancing device lifespan and system stability.

Get Vishay SMAJ18AHM3AH today—built for precision and long-lasting durability in circuit protection.

Frequently Asked Questions

Where can I buy Vishay SMAJ18AHM3AH?

You can click on the BUY or RFQ button to purchase SMAJ18AHM3AH from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part SMAJ18AHM3AH?

You can download the SMAJ18AHM3AH datasheet or visit the Vishay website for support.

Who is the manufacturer of SMAJ18AHM3AH?

Vishay

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