MMBD4148CC

Overview

The MMBD4148CC is a small signal switching diode manufactured by Taiwan Semiconductor Corporation. It features a dual common cathode configuration housed in an SOT-23-3 surface-mount package. The device supports a peak reverse voltage of 100 V and a maximum forward current of 200 mA, with a surge current rating of 2 A. Key electrical characteristics include a fast recovery time of 4 ns, a forward voltage of 1 V, and a reverse current of 5 uA. It operates within a temperature range of -55°C to +150°C and has a power dissipation capacity of 350 mW.

Feature Summary

• Dual common cathode configuration for compact circuit integration
• Ultra-fast switching performance with 4 ns recovery time
• High thermal stability supporting operation up to 150°C

Applications

• Industrial signal processing circuits
• General purpose high-speed switching applications
• Clamping and protection in electronic systems

Procurement Notes

Verify the manufacturer designation on the component marking, as the MMBD4148CC part number is utilized by multiple vendors including onsemi and Taiwan Semiconductor. Confirm the specific datasheet version corresponding to Taiwan Semiconductor to ensure accurate electrical parameters. Cross-reference the package dimensions and pinout against the official Taiwan Semiconductor documentation before finalizing procurement specifications.

Selection Notes

Select this component when a dual common cathode arrangement is required in a minimal footprint. The SOT-23-3 package offers space efficiency for dense PCB layouts. Ensure the application demands a 100 V reverse voltage rating and 200 mA continuous forward current capability. Verify that the 4 ns recovery speed meets the timing requirements of the target switching frequency.

Part Context

This component belongs to the MMBD4148 series of small signal switching diodes. While the base model name is shared across manufacturers like onsemi and Micro Commercial Components, the suffix 'CC' specifically denotes the common cathode configuration. Taiwan Semiconductor produces this variant to provide industry-standard performance in a widely used surface-mount package.

Replacement Considerations

Direct substitutes include MMBD4148C from other manufacturers offering identical dual common cathode functionality. Verify that replacement parts maintain the same SOT-23-3 package and electrical ratings.