SMBJ48A-E3/52

The SMBJ48A-E3/52 is a transient voltage suppressor (TVS) diode manufactured by Vishay, designed to protect sensitive electronic components from voltage spikes and transients. Here’s a detailed description of its features and specifications:

General Description:

• Type: Transient Voltage Suppressor (TVS) Diode
• Package: SMB (DO-214AA) package, which is a surface-mount device (SMD) that provides a compact footprint suitable for various applications.
• Polarity: Unidirectional, meaning it is designed to conduct current in one direction, making it ideal for protecting DC circuits.

Electrical Characteristics:

• Reverse Stand-Off Voltage (V_RWM): 48V, which indicates the maximum voltage that can be applied across the device without causing it to conduct.
• Clamping Voltage (V_C): Typically around 76V at a specified peak pulse current, which is the maximum voltage the device will allow during a transient event.
• Peak Pulse Power (P_PP): Rated at 600W for a 10/1000 µs waveform, indicating the maximum power the device can handle during a transient event without failure.
• Peak Pulse Current (I_PP): Can handle up to 30A, which is the maximum current the device can conduct during a transient event.

Thermal and Mechanical Properties:

• Operating Temperature Range: -55°C to +150°C, allowing it to function in a wide range of environmental conditions.
• Storage Temperature Range: -55°C to +150°C, ensuring reliability during storage and handling.
• Junction Capacitance: Typically around 100 pF at 0V, which is important for high-speed applications as it affects the signal integrity.

Applications:

The SMBJ48A-E3/52 is suitable for a variety of applications, including:

• Protection of sensitive electronic components in automotive, telecommunications, and consumer electronics.
• Circuit protection in power supplies and data lines.
• General-purpose transient voltage suppression in various electronic devices.

Compliance and Standards:

• The device is compliant with RoHS (Restriction of Hazardous Substances) standards, making it environmentally friendly and suitable for use in modern electronic manufacturing processes.

Summary:

The SMBJ48A-E3/52 from Vishay is a robust and reliable transient voltage suppressor diode that offers effective protection against voltage transients in a compact SMB package. Its high power handling capability, wide operating temperature range, and compliance with industry standards make it an excellent choice for protecting sensitive electronic circuits in a variety of applications.