Overview
The SMAJ12A-TR is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. This component is part of the SMAJ series, designed to protect sensitive electronic equipment against electrostatic discharges and electrical overstress. The SMAJ12A-TR utilizes Planar technology, making it suitable for high-end circuits that require low leakage current and high junction temperature for long-term reliability and stability. It is packaged in the SMA (DO-214AC, SOD-106) footprint, compliant with the IPC 7531 standard.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Breakdown Voltage (Min) | 13.3 | V |
| Breakdown Voltage (Max) | 14 | V |
| Clamping Voltage (Max) | 25.3 | V |
| Directional | Uni-Directional | |
| Peak Pulse Power | 400 W (10/1000 μs), 2.3 kW (8/20 μs) | |
| Reverse Leakage Current | 0.2 µA at 25 °C, 1 µA at 85 °C | |
| Standoff Voltage | 12 V | |
| Operating Temperature Range | -55 °C to +150 °C | |
| Storage Temperature Range | -65 °C to +150 °C | |
| Package Style | SMA (DO-214AC, SOD-106) | |
| Mounting Method | Surface Mount |
Key Features
- Peak Pulse Power: 400 W (10/1000 μs) and 2.3 kW (8/20 μs)
- Low Leakage Current: 0.2 µA at 25 °C and 1 µA at 85 °C
- High Junction Temperature: Operating up to 150 °C
- Compliance with Standards: IEC 61000-4-2, IEC 61000-4-4, MIL STD 883, method 3015
- Package Compliance: JEDEC registered package outline, IPC 7531 footprint
- Material and Construction: UL94 V0 rated, J-STD-020 MSL level 1, JESD 22-B102 E3 and MIL-STD-750, method 2026 solderable matte tin plated leads
Applications
The SMAJ12A-TR is designed to protect sensitive electronic equipment in various applications, including:
- Protection against electrostatic discharges (ESD) and electrical overstress (EOS)
- Surge protection in power supplies and DC-DC converters
- Protection of high-speed data lines and communication interfaces
- Use in automotive, industrial, and consumer electronics where transient voltage protection is critical
Q & A
- What is the peak pulse power of the SMAJ12A-TR?
The peak pulse power of the SMAJ12A-TR is 400 W (10/1000 μs) and 2.3 kW (8/20 μs).
- What is the breakdown voltage range of the SMAJ12A-TR?
The breakdown voltage range is from 13.3 V to 14 V.
- What is the clamping voltage of the SMAJ12A-TR?
The maximum clamping voltage is 25.3 V.
- What is the operating temperature range of the SMAJ12A-TR?
The operating temperature range is from -55 °C to +150 °C.
- What standards does the SMAJ12A-TR comply with?
The SMAJ12A-TR complies with IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883, method 3015.
- What is the package style of the SMAJ12A-TR?
The SMAJ12A-TR is packaged in SMA (DO-214AC, SOD-106).
- What is the mounting method of the SMAJ12A-TR?
The mounting method is surface mount).
- What is the leakage current of the SMAJ12A-TR?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C).
- What are the typical applications of the SMAJ12A-TR?
Typical applications include protection against ESD and EOS, surge protection in power supplies, and protection of high-speed data lines).
- Is the SMAJ12A-TR suitable for high-end circuits?
Yes, the SMAJ12A-TR is suitable for high-end circuits due to its low leakage current and high junction temperature capabilities).
- What is the storage temperature range of the SMAJ12A-TR?
The storage temperature range is from -65 °C to +150 °C).
