MMBD1204_D87Z

Overview

The MMBD1204_D87Z is a dual common cathode switching diode manufactured by onsemi, formerly Fairchild Semiconductor. It is housed in an SOT-23 surface-mount package with a height of 0.93 mm. The device supports a peak reverse voltage of 100 V and a maximum forward current of 0.2 A. Key electrical characteristics include a fast recovery time of 4 ns, a forward voltage of 1.1 V at rated current, and a reverse leakage current of 0.05 uA. It operates within a temperature range of -55 C to +150 C and can withstand a surge current of 2 A.

Feature Summary

• Dual common cathode configuration for efficient circuit design
• Ultra-fast recovery time suitable for high-speed switching applications
• Compact SOT-23 surface-mount package for space-constrained layouts

Applications

• General purpose switching circuits
• Power supply rectification
• Signal demodulation

Procurement Notes

Verify the manufacturer designation carefully, as the part may be listed under Fairchild Semiconductor due to historical acquisition records. Confirm the specific suffix _D87Z corresponds to the required packaging format, such as cut tape or reel, when placing orders. Ensure the component meets RoHS compliance requirements if mandated by your project specifications. Cross-reference the datasheet revision date to ensure access to the most current electrical parameters and mechanical drawings.

Selection Notes

Select this component when a compact dual diode solution with ultra-fast switching capabilities is required. The low forward voltage drop contributes to reduced power loss in signal paths. The wide operating temperature range makes it suitable for industrial environments. Consider the 100 V reverse voltage rating to ensure adequate margin against transient spikes in the target application circuit.

Part Context

This component belongs to the general-purpose diode category within onsemi's discrete semiconductor portfolio. It serves as a replacement for legacy Fairchild parts following corporate restructuring. The dual common cathode arrangement allows designers to utilize two independent diodes in a single footprint, optimizing board space compared to using individual single diodes.

Replacement Considerations

Direct substitutes include the MMBD1204 from other manufacturers offering identical pinouts and electrical specifications. Verify that any alternative maintains the 4 ns recovery time and 100 V reverse voltage rating to ensure functional equivalence in high-speed switching applications.