Overview
The ESDA18-1K is a single line Transil diode designed by STMicroelectronics for the protection of integrated circuits in portable equipment and miniaturized electronics devices. It is specifically engineered to safeguard against Electrostatic Discharge (ESD) and Electrical Overstress (EOS) transient overvoltages. This component is part of the Transil series, known for its high protection levels and compact design, making it suitable for high-density boards and small form factor devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Breakdown Voltage | 18 V | V |
| Peak Pulse Power Dissipation (8/20 µs) | 400 W | W |
| Peak Pulse Current (8/20 µs) | 12 A | A |
| ESD Protection Level | Better than IEC 61000-4-2 level 4: 30 kV contact discharge | - |
| Leakage Current at 5 V | < 0.5 µA | µA |
| Operating Junction Temperature Range | -40 to +150 °C | °C |
| Storage Temperature Range | -65 to +150 °C | °C |
| Maximum Lead Temperature for Soldering | 260 °C | °C |
| Package Type | SOD-523 | - |
Key Features
- High EOS and ESD protection level, compliant with IEC 61000-4-2 level 4 and MIL STD 883G - Method 3015-7 Class 3B.
- Unidirectional device with high peak power dissipation.
- Low leakage current (< 0.5 µA at 5 V).
- Compact SOD-523 package, suitable for high-density boards.
- Lead-free and RoHS compliant, with ECOPACK® packaging options.
- High integration and small footprint (PCB area: 1.3 mm²).
Applications
The ESDA18-1K is designed for use in various ESD-sensitive equipment, including:
- Computers and printers.
- Communication systems.
- Cellular phone handsets and accessories.
- Video equipment.
Q & A
- What is the primary function of the ESDA18-1K? The ESDA18-1K is designed to protect integrated circuits from Electrostatic Discharge (ESD) and Electrical Overstress (EOS) transient overvoltages.
- What are the breakdown voltage and peak pulse power dissipation of the ESDA18-1K? The breakdown voltage is 18 V, and the peak pulse power dissipation is 400 W (8/20 µs waveform).
- What is the ESD protection level of the ESDA18-1K? It is better than IEC 61000-4-2 level 4: 30 kV contact discharge.
- What is the leakage current of the ESDA18-1K at 5 V? The leakage current is less than 0.5 µA at 5 V.
- What is the operating junction temperature range of the ESDA18-1K? The operating junction temperature range is -40 to +150 °C.
- What package type is used for the ESDA18-1K? The ESDA18-1K comes in a SOD-523 package.
- Is the ESDA18-1K RoHS compliant? Yes, the ESDA18-1K is lead-free and RoHS compliant.
- What are some typical applications for the ESDA18-1K? Typical applications include computers, printers, communication systems, cellular phone handsets and accessories, and video equipment.
- How should the ESDA18-1K be soldered onto a PCB? It is recommended to use halide-free flux, “no clean” solder paste, and follow specific reflow profile guidelines to ensure proper soldering.
- What are the dimensions of the SOD-523 package for the ESDA18-1K? The dimensions of the SOD-523 package are detailed in the datasheet, with key dimensions including A (0.50-0.70 mm), E (1.50-1.70 mm), and D (0.70-0.90 mm).
