MAPLAD18KP12CA

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MAPLAD18KP12CA is a Transient Voltage Suppression (TVS) diode, which is designed to protect the sensitive electronic devices from high-energy voltage transients and electrostatic discharge (ESD). These TVS diodes can quickly and safely clamp the voltage transients to a safe level, thereby providing protection to the electronics from the potential transient damage.

Features of MAPLAD18KP12CA

• Breakdown Voltage: 18V
  
• Peak Pulse Power: 1200W @10/1000 μs
  
• Peak Pulse Current: 43.1A @10/1000 μs
  
• Stand-off Voltage: 18V
  
• Maximum Clamping Voltage: 27.2V @ 250A

Applications

MAPLAD18KP12CA is a popular choice for protection in a wide range of applications, including automotive, industrial, communications and consumer electronics. In automotive applications, it is commonly used for ESD protection and in Line Switching Protection (LSP). It is also widely used for load switching, DC-DC converter and voltage clamping applications.

Working Principle

MAPLAD18KP12CA is a unidirectional device, that is, it conducts current in only one direction. When a transient pulse is applied, the current will immediately increase in the forward direction.

It then begins to undergo avalanche breakdown at the diode PN junction until the breakdown voltage is reached. This strains the PN junction and causes holes and electrons to recombine. The recombination of the electrons causes the current to drop to a safe level, thus limiting the maximum voltage that can be conducted by the diode.

MAPLAD18KP12CA has a very fast response time, which is typically within 25nS, so it can provide effective protection even in environments where high frequency transients are present. This makes it a suitable choice for applications with high power transients.

Conclusion

MAPLAD18KP12CA is a TVS diode designed to protect sensitive electronic devices from high-energy voltage transients and ESD. It is a unidirectional device with a breakdown voltage of 18V and peak power of 1200W @10/1000 μs making it a good choice for many applications. Its fast response time helps protect against high frequency transients.

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