1SMB5951BT3G

The 1SMB5951BT3G is a transient voltage suppressor (TVS) diode manufactured by ON Semiconductor, designed to protect sensitive electronic components from voltage spikes and transients. This device is particularly useful in applications where overvoltage protection is critical, such as in automotive, telecommunications, and consumer electronics.

Key Features:

1. Type and Configuration: The 1SMB5951BT3G is a unidirectional TVS diode, meaning it is designed to clamp voltage in one direction, providing effective protection against positive voltage transients.

2. Peak Power Rating: It has a peak power rating of 600 watts, which allows it to absorb significant energy from transient events without failing.

3. Reverse Stand-Off Voltage (V_RWM): The device has a reverse stand-off voltage of 51 volts, which is the maximum voltage that can be applied across the diode without causing it to conduct. This makes it suitable for protecting circuits operating at voltages up to this level.

4. Clamping Voltage (V_C): When a transient occurs, the clamping voltage is the maximum voltage that the diode will allow to pass through. For the 1SMB5951BT3G, the clamping voltage is specified at a peak pulse current of 10/1000 µs, ensuring that the voltage does not exceed safe levels for the protected components.

5. Capacitance: The device features low capacitance, which is beneficial in high-speed data applications, as it minimizes signal distortion and maintains signal integrity.

6. Package Type: The 1SMB5951BT3G is housed in a DO-214AA (SMB) package, which is a surface-mount package that is compact and suitable for automated assembly processes. This package design also aids in thermal dissipation.

7. Operating Temperature Range: The diode operates effectively over a wide temperature range, typically from -55°C to +150°C, making it suitable for various environmental conditions.

8. Compliance and Certifications: The device is compliant with various industry standards, ensuring reliability and performance in critical applications.

Applications:

• Automotive Electronics: Protecting sensitive components from voltage spikes due to load dump or inductive switching.
• Telecommunications: Safeguarding communication lines and equipment from lightning strikes and other transient events.
• Consumer Electronics: Used in devices such as smartphones, tablets, and computers to protect against ESD (electrostatic discharge) and other voltage transients.

Conclusion:

The 1SMB5951BT3G from ON Semiconductor is a robust and reliable transient voltage suppressor diode, ideal for protecting sensitive electronic circuits from damaging voltage spikes. Its combination of high power handling, low clamping voltage, and compact packaging makes it a versatile choice for a wide range of applications.