Overview
The SMAJ58A-TR is a Transient Voltage Suppressor (TVS) diode designed by STMicroelectronics to protect sensitive electronic equipment from various types of electrical overstress. This device is part of the SMAJ series, which is engineered to withstand electrostatic discharges according to IEC 61000-4-2 and MIL STD 883, method 3015, as well as electrical overstress as per IEC 61000-4-4 and 5. The SMAJ58A-TR is particularly suited for applications requiring protection against surges below 600 W (10/1000 μs).
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) | 58 V |
| Breakdown Voltage (VBR) | 64.4 V to 71.2 V |
| Clamping Voltage (VC) | 93.6 V |
| Maximum Forward Impulse Current (IPP) | 4.3 A |
| Leakage Current (IR) at 25 °C | 0.2 µA |
| Leakage Current (IR) at 85 °C | 1 µA |
| Operating Junction Temperature | -55 °C to 150 °C |
| Package | DO-214AC (SMA) |
| Directionality | Unidirectional |
Key Features
- Low leakage current: 0.2 µA at 25 °C and 1 µA at 85 °C.
- High junction temperature: up to 150 °C for long-term reliability and stability.
- Fast response time: typically less than 1.0 ps from 0 Volts to V(BR) for unidirectional types.
- Excellent clamping capability: clamping voltage of 93.6 V.
- Halogen-free and RoHS compliant: optimized for environmentally friendly applications.
- Low profile package with built-in strain relief: suitable for surface-mounted applications to optimize board space.
- Glass passivated junction: enhances the device's reliability and performance).
Applications
The SMAJ58A-TR is designed for various applications requiring protection against electrical overstress and electrostatic discharges. These include:
- Protection of sensitive electronic equipment in industrial, automotive, and consumer electronics.
- Surge protection in power supplies, communication systems, and data transmission lines.
- Electrostatic discharge (ESD) protection in high-reliability circuits.
- Protection against lightning-induced surges and electrical fast transients.
Q & A
- What is the peak pulse power of the SMAJ58A-TR?
The peak pulse power of the SMAJ58A-TR is 400 W (10/1000 μs) and 2.3 kW (8/20 μs)).
- What is the stand-off voltage (VRM) of the SMAJ58A-TR?
The stand-off voltage (VRM) of the SMAJ58A-TR is 58 V).
- What is the breakdown voltage range of the SMAJ58A-TR?
The breakdown voltage range of the SMAJ58A-TR is from 64.4 V to 71.2 V).
- What is the maximum forward impulse current (IPP) of the SMAJ58A-TR?
The maximum forward impulse current (IPP) of the SMAJ58A-TR is 4.3 A).
- What is the operating junction temperature range of the SMAJ58A-TR?
The operating junction temperature range of the SMAJ58A-TR is from -55 °C to 150 °C).
- Is the SMAJ58A-TR RoHS compliant?
Yes, the SMAJ58A-TR is RoHS compliant and halogen-free).
- What type of package does the SMAJ58A-TR use?
The SMAJ58A-TR uses a DO-214AC (SMA) package).
- What is the directionality of the SMAJ58A-TR?
The SMAJ58A-TR is a unidirectional TVS diode).
- What are the key applications of the SMAJ58A-TR?
The SMAJ58A-TR is used for protecting sensitive electronic equipment against electrical overstress and electrostatic discharges in various applications including industrial, automotive, and consumer electronics).
- What are the benefits of the glass passivated junction in the SMAJ58A-TR?
The glass passivated junction enhances the device's reliability and performance by providing a stable and robust junction).
