MMSD4148_G

Single Diodes Overview

The onsemi MMSD4148_G is a silicon junction switching diode designed for surface-mount applications. It features a single diode configuration housed in an SOD-123 package with two pins. The component supports a maximum continuous forward current of 300 mA and a peak reverse repetitive voltage of 75 V. Key electrical characteristics include a peak non-repetitive forward surge current of 2 A, a peak reverse recovery time of 4 ns, and a maximum power dissipation of 350 mW. The forward voltage is rated at 1 V, while the operating temperature range spans from -55°C to +150°C.

Single Diodes Feature Summary

• Ultra-fast switching capability with a 4 ns peak reverse recovery time
• High conductance design for efficient signal handling
• Robust thermal performance supporting operation up to 150°C

Single Diodes Applications

• General purpose signal switching circuits
• High-speed digital logic interfaces
• Clamping and protection in low-voltage systems

Single Diodes Procurement Notes

Verify the specific suffix designation against official onsemi documentation to confirm exact electrical tolerances and packaging specifications. Ensure the selected variant matches the required voltage rating of 75 Vrrm for the intended application. Cross-reference the SOD-123 footprint dimensions during PCB layout to guarantee mechanical compatibility. Confirm compliance with relevant environmental standards prior to integration.

Single Diodes Selection Notes

Select this component when a compact surface-mount solution is required for fast switching applications. The SOD-123 package offers space efficiency compared to through-hole alternatives. Consider the 75 V reverse voltage limit when designing for higher voltage environments. Evaluate the 300 mA forward current capacity against peak load requirements to ensure reliable long-term operation under thermal stress.

Single Diodes Part Context

This part belongs to the MMSD series of high-conductance ultra-fast switching diodes manufactured by onsemi. It serves as a surface-mount alternative to traditional through-hole switching diodes like the 1N4148. The series is engineered for applications demanding rapid response times and small form factors within consumer electronics and industrial control systems.

Single Diodes Replacement Considerations

Verify pinout compatibility with existing designs. Check if the 75 V rating meets system requirements, as some substitutes offer 100 V. Confirm that the SOD-123 package dimensions align with the current board layout.