Overview
The SMAJ70CA-TR, produced by STMicroelectronics, is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from electrostatic discharges and electrical overstress. This device is part of the SMAJ series, which is known for its high reliability and stability in high-end circuits. The SMAJ70CA-TR is particularly suited for applications requiring protection against surges below 600 W (10/1000 μs) and is compliant with standards such as IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883, method 3015.
Key Specifications
| Parameter | Value |
|---|---|
| Peak Pulse Power (10/1000 μs) | 400 W |
| Peak Pulse Power (8/20 μs) | 2.3 kW |
| Stand-off Voltage (VRM) | 70 V |
| Breakdown Voltage (VBR) | 77.8 V to 86 V |
| Clamping Voltage (VC) | 113 V |
| Leakage Current (IR) at 25 °C | 0.2 µA |
| Leakage Current (IR) at 85 °C | 1 µA |
| Operating Junction Temperature (Tj) | -55 °C to 150 °C |
| Directionality | Bidirectional |
| Package | SMA (DO-214AC) |
Key Features
- Halogen-free and RoHS compliant.
- Low profile package with built-in strain relief.
- Glass passivated junction for enhanced reliability.
- Low inductance and excellent clamping capability.
- Fast response time, typically less than 1.0 ps from 0 Volts to V(BR) for unidirectional types.
- Low leakage current: 0.2 µA at 25 °C and 1 µA at 85 °C).
- Operating junction temperature up to 150 °C).
Applications
The SMAJ70CA-TR is ideal for various applications requiring protection against transient voltages and electrical overstress. These include:
- Protection of high-speed differential lines.
- Short-to-battery hazards in vehicles).
- General protection against electrostatic discharges and surges in sensitive electronic equipment).
Q & A
- What is the peak pulse power of the SMAJ70CA-TR?
The peak pulse power of the SMAJ70CA-TR is 400 W (10/1000 μs) and 2.3 kW (8/20 μs)).
- What is the stand-off voltage of the SMAJ70CA-TR?
The stand-off voltage (VRM) of the SMAJ70CA-TR is 70 V).
- Is the SMAJ70CA-TR RoHS compliant?
- What is the operating junction temperature range of the SMAJ70CA-TR?
The operating junction temperature range is -55 °C to 150 °C).
- What type of package does the SMAJ70CA-TR use?
The SMAJ70CA-TR is packaged in an SMA (DO-214AC) package).
- Is the SMAJ70CA-TR bidirectional or unidirectional?
The SMAJ70CA-TR is bidirectional).
- What is the leakage current of the SMAJ70CA-TR at 25 °C and 85 °C?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C).
- What are some typical applications of the SMAJ70CA-TR?
Typical applications include protection of high-speed differential lines, short-to-battery hazards in vehicles, and general protection against electrostatic discharges and surges).
- Does the SMAJ70CA-TR have built-in strain relief?
- What is the clamping voltage of the SMAJ70CA-TR?
The clamping voltage (VC) of the SMAJ70CA-TR is 113 V).
