SMAJ40C - Product Overview and Specifications

Introduction

The SMAJ40C is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMAJ40C is specifically designed for use in various applications where protection against transient overvoltage conditions is required.

Basic Information Overview

Category: Transient Voltage Suppressor (TVS) Diode
Use: Protection against voltage spikes and transients
Characteristics: Fast response time, low clamping voltage
Package: DO-214AC (SMA), SMC package
Essence: Safeguarding sensitive electronic components
Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

Peak Pulse Power: 400W
Breakdown Voltage: 40V
Operating Temperature Range: -55°C to +150°C
Reverse Standoff Voltage: 40V
Forward Voltage: 3.5V at 5A
RoHS Compliant: Yes

Detailed Pin Configuration

The SMAJ40C TVS diode typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

Fast response time to transient overvoltage conditions
Low clamping voltage to limit the voltage across sensitive components
RoHS compliant, ensuring environmental friendliness

Advantages and Disadvantages

Advantages

Effective protection against voltage spikes
Fast response time
RoHS compliant

Disadvantages

Limited to specific voltage and power ratings
May require additional components for comprehensive protection in complex circuits

Working Principles

The SMAJ40C operates based on the principle of avalanche breakdown. When a transient overvoltage condition occurs, the diode rapidly conducts, diverting the excess current away from the protected circuitry and limiting the voltage across it.

Detailed Application Field Plans

The SMAJ40C is widely used in various applications, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

1. P6SMBJ40CA: Similar specifications, different package (DO-214AA)
2. 1.5SMCJ40CA: Higher peak pulse power (1500W), similar breakdown voltage
3. SMBJ40CA: Lower peak pulse power (600W), similar breakdown voltage

In conclusion, the SMAJ40C TVS diode offers effective protection against transient overvoltage conditions and finds widespread use in diverse electronic applications.

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