• SMCJ18CA DO-214AB
SMCJ18CA DO-214AB

SMCJ18CA

Diode TVS Single Bi-Dir 18V 1.5KW 2-Pin SMC T/R

Quantity Unit Price(USD) Ext. Price
5 $0.089 $0.44
50 $0.078 $3.90
150 $0.073 $10.95
500 $0.069 $34.50
3000 $0.058 $174.00
6000 $0.056 $336.00

Inventory:5,023

*The price is for reference only.
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Overview of SMCJ18CA

The SMCJ18CA is a TVS (transient voltage suppressor) diode designed to protect sensitive electronic devices from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). This diode offers a high surge capability and low clamping voltage, making it suitable for use in a wide range of applications requiring transient voltage protection.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • Cathode (K): Connect to the cathode terminal of the protected circuit.
  • Anode (A): Connect to the anode terminal of the protected circuit.

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the SMCJ18CA TVS diode for a visual representation.

Key Features

  • Transient Voltage Suppression: The SMCJ18CA provides robust protection against voltage transients caused by various sources, safeguarding sensitive components.
  • High Surge Capability: With its high surge current and energy handling capability, this diode can effectively absorb large transient currents.
  • Low Clamping Voltage: The low voltage at which the diode clamps during a transient event helps in minimizing the stress on the protected circuit.
  • Fast Response Time: The diode responds quickly to transient events, diverting excess current away from the sensitive components.
  • ESD Protection: It offers protection against electrostatic discharge, enhancing the reliability of electronic systems.

Note: For detailed technical specifications, please refer to the SMCJ18CA datasheet.

Application

  • Power Supply Protection: Ideal for protecting power supplies and electronic equipment from voltage spikes and surges.
  • Telecommunication Systems: Used in telecommunication infrastructure to protect against lightning-induced surges and ESD.
  • Industrial Control Systems: Suitable for industrial control and automation applications to safeguard sensitive electronics.

Functionality

The SMCJ18CA TVS diode provides robust transient voltage suppression, offering reliable protection against voltage transients and surges. It ensures the safety and integrity of sensitive electronic circuits in various applications.

Usage Guide

  • Connection: Connect the cathode and anode terminals of the diode in parallel with the circuit to be protected.
  • Mounting: Ensure proper heat dissipation and mechanical stability during the mounting process for effective transient voltage protection.
  • Replacement: Periodically replace the diode if it has been exposed to transient events or has reached the end of its service life.

Frequently Asked Questions

Q: What is the maximum clamping voltage of the SMCJ18CA?
A: The SMCJ18CA has a low clamping voltage, typically around 29.2V under standard test conditions.

Q: Can the SMCJ18CA be used for surge protection in outdoor installations?
A: Yes, the SMCJ18CA is suitable for outdoor surge protection due to its high surge capability and robust design.

Equivalent

For similar functionalities, consider these alternatives to the SMCJ18CA:

  • SMCG18A: This TVS diode offers similar surge protection capabilities with a slightly different form factor.
  • P6SMBJ18CA: A surface mount TVS diode with comparable transient voltage suppression characteristics suitable for compact designs.

SMCJ18CA

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Reverse Standoff Voltage (VR) (Vso) 18 Watts (W) 1500
Peak Pulse Current (Ipp) 10x1000 (A) 51.4 Breakdown Voltage (MIN VBR@IT ) (V) 20
Breakdown Voltage (VBR@IT) (V) 22.1 Ir @Vso( μA) 1
On-State Current (IT) (mA) 1 Peak Pulse Current (Ipp) 8x20μs (A) 282.7
Max Clamp Voltage (Vc) (V) 29.2 Uni / Bi-Directional Bidirectional
Operating Temperature Maximum Celsius 150 Package DO-214AB

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