The M4 rectifier diode belongs to the surface mount (SMD) rectifier diode series. It is widely used in electronic circuits for its compact size and reliable performance. This diode adopts DO-214AC package, which is very suitable for modern electronic equipment with limited space.

Basic Parameters

  • Maximum reverse withstand voltage (VRRM): 400V
  • Average rectifier current (IO): 1A
  • Maximum forward voltage drop (VF): About 1.1V (@1A)
  • Reverse recovery time (trr): Usually a standard rectifier diode (not a fast recovery type), about 2-5µs
  • Package: SMA/DO-214AC

Features and Advantages

The M4 diode uses optimized chip design and packaging technology to achieve:

  • Low forward voltage drop, reduced conduction loss
  • Fast reverse recovery characteristics
  • Good high temperature stability
  • Excellent surge resistance

Typical Applications

M4 rectifier diode is widely used in various power supplies and power management circuits:

  • AC/DC power adapters: used for input rectifier bridges and secondary-side rectification
  • Switching power supply (SMPS): especially low-power offline switching power supplies
  • LED drive circuit: provides a unidirectional current path
  • Home appliance control board: power supply part of home appliances such as microwave ovens and washing machines
  • Industrial control systems: power modules of PLCs, sensors and other equipment
  • Consumer electronics: power circuits of TVs, audio equipment, chargers and other equipment
  • Reverse voltage protection: prevents reverse power connection from damaging sensitive circuits

Practical Application Suggestions

  • Confirm the voltage tolerance
  • Reasonable heat dissipation design
    Although the 1A current is not large, if the continuous high current is rectified, the heat dissipation capacity limitation of the SMA package should be considered, and the copper foil area should be increased to help heat dissipation if necessary.
  • Prevent reverse breakdown
    A reverse voltage exceeding 400V is likely to cause damage to the diode, and a margin should be left in the design stage

Product Line

For datasheet and more details of M4, please visit the website:

https://semiware.com/en/rectifier-diode/m4

About Semiware
Semiware has a comprehensive product lineup of circuit protection device products. The company leverages its technology in the semiconductor field and application background in end products to serve customers in the electronics, automotive and industrial markets. For more information, please visit semiware official website: https://semiware.com/en/

Welcome to contact us for more details as follows:
Email: cassie@semiware.com;
Tel: +86-18930674110;
Whatsapp: 008618123742225