SMCJ43CA-HR Encyclopedia Entry

Product Overview

The SMCJ43CA-HR belongs to the category of transient voltage suppressor diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and surges. The SMCJ43CA-HR is designed to provide robust protection against transient overvoltage conditions in a variety of applications.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage spikes and surges
• Characteristics: High reliability, fast response time, low clamping voltage
• Package: SMC (DO-214AB), 2-Pin
• Essence: Safeguarding electronic circuits from transient overvoltage events
• Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

• Peak Pulse Power: 1500W
• Breakdown Voltage: 43V
• Clamping Voltage: 77.4V
• Operating Temperature Range: -55°C to +175°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMCJ43CA-HR is a two-pin device with a standard SMC (DO-214AB) package. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

• Transient Voltage Suppression: Provides rapid response to transient overvoltage events, diverting excess current away from sensitive components.
• Low Clamping Voltage: Limits the voltage across the protected circuit during a transient event, minimizing potential damage.
• High Reliability: Designed for consistent performance and long-term reliability in demanding environments.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact and easy to integrate into circuit designs

Disadvantages

• May introduce some capacitance to the circuit
• Requires careful consideration of placement and routing for optimal performance

Working Principles

The SMCJ43CA-HR operates based on the principle of avalanche breakdown. When a transient overvoltage occurs, the diode rapidly conducts, providing a low-impedance path for the excess current. This action limits the voltage across the protected circuit, safeguarding downstream components.

Detailed Application Field Plans

The SMCJ43CA-HR is widely used in various electronic systems, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• Alternative Model 1: P6SMB43CA

  • Breakdown Voltage: 43V
  • Package: DO-214AA
  • Peak Pulse Power: 600W

• Alternative Model 2: 1.5SMC43CA

  • Breakdown Voltage: 43V
  • Package: DO-214AB
  • Peak Pulse Power: 1500W

• Alternative Model 3: SMBJ43CA

  • Breakdown Voltage: 43V
  • Package: DO-214AA
  • Peak Pulse Power: 600W

In conclusion, the SMCJ43CA-HR transient voltage suppressor diode offers reliable protection against transient overvoltage events in a wide range of electronic applications. Its high reliability, fast response time, and low clamping voltage make it a valuable component in safeguarding sensitive circuits from potential damage.

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