Overview
The SMCJ18CA-TR is a Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. This component is part of the SMCJ series, designed to protect sensitive electronic equipment from transient overvoltages and electrostatic discharges. The SMCJ18CA-TR is a bidirectional TVS diode, meaning it can protect against voltage surges in both directions. It is packaged in a DO-214AB (SMC) surface mount package, making it suitable for applications where space is limited.
Key Specifications
| Property | Value |
|---|---|
| VR (V standoff) | 18 V |
| Peak Pulse Power - 10x1000 (W) | 1500 W (1.5 kW) |
| VBR @ IT (Min/Max) | 20 V / 22.1 V |
| VC (Clamping Voltage) | 29.2 V |
| IPP 10x1000µs (A) | 51.4 A |
| IT (mA) | 1 mA |
| Ir @ Vr (µA) | 1 µA |
| Operating Temperature Max (°C) | 150 °C |
| Package | DO-214AB (SMC) |
| Uni / Bi-Directional | Bidirectional |
Key Features
- Halogen-free and RoHS compliant, ensuring environmental sustainability and compliance with regulatory standards.
- Designed for surface mount applications to optimize board space, with a low profile package and built-in strain relief.
- Glass passivated junction for enhanced reliability and durability.
- Low inductance and excellent clamping capability, providing effective transient voltage suppression.
- Fast response time, typically less than 1 ps from 0 V to VBRmin.
- Typical IR less than 1 mA above 10 V, indicating low leakage current).
Applications
The SMCJ18CA-TR is suitable for a variety of applications, including:
- General purpose transient voltage suppression to protect sensitive electronic equipment from voltage surges and electrostatic discharges.
- Medical devices, where reliable and robust protection against transient voltages is critical).
- Other applications requiring surface mount TVS diodes with high peak pulse power handling and bidirectional protection).
Q & A
- What is the primary function of the SMCJ18CA-TR?
The primary function of the SMCJ18CA-TR is to protect sensitive electronic equipment from transient overvoltages and electrostatic discharges.
- What is the voltage standoff (VR) of the SMCJ18CA-TR?
The voltage standoff (VR) of the SMCJ18CA-TR is 18 V.
- What is the peak pulse power handling of the SMCJ18CA-TR?
The peak pulse power handling of the SMCJ18CA-TR is 1500 W (1.5 kW).
- Is the SMCJ18CA-TR bidirectional or unidirectional?
The SMCJ18CA-TR is a bidirectional TVS diode.
- What is the operating temperature range of the SMCJ18CA-TR?
The operating temperature range of the SMCJ18CA-TR is -55°C to 150°C.
- Is the SMCJ18CA-TR RoHS compliant?
Yes, the SMCJ18CA-TR is RoHS compliant and halogen-free.
- What package type does the SMCJ18CA-TR use?
The SMCJ18CA-TR is packaged in a DO-214AB (SMC) surface mount package.
- What are some typical applications for the SMCJ18CA-TR?
Typical applications include general purpose transient voltage suppression, medical devices, and other applications requiring surface mount TVS diodes.
- What is the clamping voltage (VC) of the SMCJ18CA-TR?
The clamping voltage (VC) of the SMCJ18CA-TR is 29.2 V.
- Does the SMCJ18CA-TR have built-in strain relief?
Yes, the SMCJ18CA-TR has built-in strain relief.
