The SMAJ28CA diodes are part of the SMAJ series designed by Littelfuse Inc as reliable and effective transient voltage suppressors. Its fast response time, low clamping voltage, and high surge handling capability make it suitable for applications in power supplies, communication systems, industrial control systems, and consumer electronics.
Function:
SMAJ28CA diodes are designed to protect electronic circuits from voltage spikes and transients by diverting excess energy from sensitive components. It acts as a fast-acting voltage clamp to limit transient voltages and prevent damage to circuits.
parameter:
The SMAJ28CA diode has specific parameters that characterize its performance and functionality:
1. Breakdown Voltage (Vbr): The breakdown voltage of a SMAJ28CA diode is typically 31.1 volts, which represents the voltage at which it begins to conduct and transfer too much energy.
2. Turnoff Voltage (Vwm): The maximum turnoff voltage is typically 28 volts and represents the maximum voltage that can be applied across a diode when it is in a non-conducting state.
3. Peak Pulse Power Dissipation (Ppp): A diode has a specific peak pulse power dissipation rating representing the maximum power it can handle during a transient event of defined pulse duration and repetition rate.
4. Clamping Voltage (Vc): The clamping voltage is the voltage level at which a diode limits or clamps transient voltages to protect downstream components. The clamping voltage of the SMAJ28CA diode is typically lower than the breakdown voltage.
feature:
The SMAJ28CA diode offers various characteristics that contribute to its effectiveness in transient voltage suppression applications:
1. Fast Response Time: Diodes have a fast response time, allowing them to quickly transfer transient voltages and protect circuits.
2. Low clamping voltage: SMAJ28CA diode has low clamping voltage, which can effectively limit transient voltage and protect sensitive components.
3. Low Leakage Current: The diode has low leakage current in the non-conducting state, which minimizes power dissipation and ensures circuit integrity.
4. High Surge Handling Capability: SMAJ28CA diodes are designed to handle high surge currents caused by transient events, providing robust protection to circuits.
application:
Littelfuse's SMAJ28CA diodes can be used in a variety of electronic systems including, but not limited to:
1. Power supplies: Often used in power circuits to protect sensitive components from voltage surges caused by lightning strikes, electrostatic discharge (ESD), or switching transients.
2. Communication systems: This diode is suitable for communication systems, such as Ethernet interfaces, telecommunication equipment, and data transmission lines, to prevent voltage transients.
3. Industrial control system: It is used in industrial control systems, motor drivers and automation equipment that need protection from voltage spikes and transients.
4. Consumer Electronics: SMAJ28CA diodes can be used in consumer electronic equipment such as televisions, computers, and home appliances to protect circuits from transient events.
