What Is a M7 Diode
The M7 diode is a surface-mount (SMD) diode widely used for its compact size, high reliability, and stable performance. Its DO-214AC package is perfect for space-constrained PCB designs, making it ideal for modern electronics.
๐ M7 Diode Key Specifications
- M7 diode voltage: 1000V
- 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 2-5ยตs
- M7 diode package: SMA/DO-214AC
Why M7 Diodes are Ideal for Compact Circuits?
- Compact SMD Design โ Fits high-density PCB layouts without compromising performance
- High Reverse Voltage Tolerance โ Protects circuits from voltage spikes
- Low Forward Voltage Drop โ Reduces heat generation and energy loss
- Reliable Performance โ Ensures stable operation for consumer and industrial electronics
With these advantages, M7 diodes help engineers achieve efficient AC/DC conversion while maintaining circuit safety.
๐ M7 Diode Pinout
Applications of M7 Diode
M7 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
๐ก Quick Tips
- 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 800V is likely to cause damage to the diode, and a margin should be left in the design stage
โ FAQs โ M7 Diodes
- Q1: What is the difference between M7 and 1N4007 diodes?
A: Both are general-purpose rectifier diodes, but the M7 is an SMD package suitable for compact circuits, while the 1N4007 is typically a through-hole diode with higher voltage handling (up to 1000V). M7 is more suitable for space-constrained PCB designs, whereas 1N4007 is preferred when higher surge tolerance or through-hole mounting is needed. - Q2: Can M7 diodes handle high-voltage spikes?
A: Yes, the M7 diode supports up to 1000V reverse voltage, providing effective protection in AC/DC conversion circuits. - Q3: Where can I find the M7 datasheet?
A: Download it directly from our product page: M7 Diode Datasheet
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