Description:ESD Suppressors / TVS Diodes 400W 350V 5% Uni-Directional
400W Peak Pulse Power
capability at 10/1000µs
waveform, repetition rate
(duty cycle): 0.01%
Excellent clamping capability
Typical IR less than 1μA when
VBR min>12V
Surface mount footprint for
compact PCB layout
Low profile package
Typical failure mode is short
from over-specified voltage or
current
Whisker test is conducted
based on JEDEC JESD201A
per its table 4a and 4c
The recommended footprint and land pattern for SMAJ350A can be found in the Littelfuse application note AN9313, which provides guidelines for surface mount assembly of TVS diodes.
To ensure reliability in high-temperature applications, it's essential to follow the recommended derating curves for voltage and current, and to consider the device's thermal resistance and power dissipation. Additionally, ensure that the device is soldered correctly and that the PCB is designed to minimize thermal stress.
While SMAJ350A is primarily designed for transient voltage suppression, it can be used in high-frequency circuits. However, the device's capacitance and inductance should be considered, and the circuit should be designed to minimize resonance and ensure stability.
To select the correct SMAJ350A variant, consider the maximum voltage, current, and power requirements of your application. Refer to the datasheet and consult with Littelfuse's application engineers if necessary. Additionally, consider the device's package type, polarity, and screening level (e.g., commercial, industrial, or automotive).
SMAJ350A is designed to provide ESD protection up to ±30kV contact discharge and ±30kV air discharge, according to the IEC 61000-4-2 standard. However, the device's ESD protection capabilities may vary depending on the application and PCB design.
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SMAJ350A Overview
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