Overview
The SMAJ28A-TR is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. This component is designed to protect sensitive electronic equipment from voltage spikes and electrostatic discharges. It complies with international standards such as IEC 61000-4-2 and MIL STD 883, method 3015, ensuring robust protection against various types of transient voltages.
Key Specifications
| Property | Value |
|---|---|
| VR (Vso) | 28 V |
| Watts (W) | 400 W |
| IPP 10x1000µs (A) | 8.8 A |
| MIN VBR@IT (V) | 31.1 V |
| MAX VBR@IT (V) | 34.4 V |
| Vc (V) | 45.4 V |
| IT (mA) | 1 mA |
| Ir@Vr (µA) | 1 µA |
| Operating Temperature Max (°C) | 150 °C |
| Polarity | Unipolar |
| Package | DO-214AC (SMA) |
| Peak Pulse Power - 10x1000 (W) | 400 W |
Key Features
- Halogen-free and RoHS compliant, ensuring environmental sustainability and compliance with regulatory standards.
- Designed for surface-mounted 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 to effectively suppress transient voltages.
- Fast response time, typically less than 1.0 ps from 0 Volts to V(BR) for unidirectional types.
- Low leakage current, with typical IR less than 1 mA above 10 V).
Applications
The SMAJ28A-TR TVS diode is suitable for a variety of applications where protection against transient voltages is crucial. These include:
- Protection of sensitive electronic equipment from electrostatic discharges and voltage spikes.
- Use in automotive, industrial, and consumer electronics where robust transient voltage suppression is required.
- Implementation in power supplies, communication systems, and other electronic circuits that need reliable voltage protection).
Q & A
- What is the peak pulse power rating of the SMAJ28A-TR?
The peak pulse power rating of the SMAJ28A-TR is 400 W).
- What is the maximum operating temperature of the SMAJ28A-TR?
The maximum operating temperature of the SMAJ28A-TR is 150 °C).
- Is the SMAJ28A-TR RoHS compliant?
Yes, the SMAJ28A-TR is RoHS compliant and halogen-free).
- What is the package type of the SMAJ28A-TR?
The SMAJ28A-TR comes in a DO-214AC (SMA) package).
- What is the polarity of the SMAJ28A-TR?
The SMAJ28A-TR is a unipolar TVS diode).
- What are the minimum and maximum breakdown voltages of the SMAJ28A-TR?
The minimum breakdown voltage is 31.1 V, and the maximum breakdown voltage is 34.4 V).
- What is the typical response time of the SMAJ28A-TR?
The typical response time of the SMAJ28A-TR is less than 1.0 ps from 0 Volts to V(BR)).
- Is the SMAJ28A-TR suitable for surface-mounted applications?
Yes, the SMAJ28A-TR is designed for surface-mounted applications to optimize board space).
- What are some common applications of the SMAJ28A-TR?
The SMAJ28A-TR is commonly used in automotive, industrial, and consumer electronics for transient voltage suppression).
- Does the SMAJ28A-TR have built-in strain relief?
Yes, the SMAJ28A-TR has built-in strain relief).
