MMBD7000

Overview

The onsemi MMBD7000 is a small-signal switching diode housed in an SOT-23 surface-mount package. It features a dual series configuration with a common cathode, providing two silicon junctions within a single three-terminal component. The device supports a peak repetitive reverse voltage of 100 V and a maximum continuous forward current of 200 mA. Key electrical characteristics include a low reverse recovery time of 4 ns and a maximum forward voltage drop of 1.1 V at specified currents. It operates reliably across a temperature range from -55°C to +150°C.

Feature Summary

• Dual series-connected diode structure integrated into a compact three-pin surface-mount footprint
• High-speed switching capability enabled by ultra-low minority carrier lifetime and minimal capacitance
• Low reverse leakage current ensures stable performance in high-impedance circuit environments

Applications

• Automotive electronic systems requiring robust signal switching
• General-purpose power management circuits
• Safety logic and protection applications

Procurement Notes

Verify the specific suffix (e.g., LT3G, LT1G) against the original design specification, as packaging formats vary between tape-and-reel and cut-tape options. Confirm RoHS compliance status and halogen-free requirements for environmental regulations. Ensure the selected variant matches the required operating temperature range and thermal dissipation limits for the target application environment.

Selection Notes

Select this component for designs requiring fast switching speeds and low parasitic capacitance in space-constrained layouts. The dual-series configuration allows for efficient use of board area compared to discrete components. Verify that the 200 mA continuous current rating and 100 V reverse voltage withstand sufficient margin for the specific circuit conditions and transient loads encountered during operation.

Part Context

This component belongs to the MMBD7000L family of small-signal switching diodes manufactured by onsemi. These devices are engineered for high-speed digital and analog switching applications where rapid transition times are critical. The family utilizes advanced silicon junction technology to minimize storage time and reverse recovery duration while maintaining low forward voltage characteristics.

Replacement Considerations

• MMBD7000LT1G
• MMBD7000LT3G

FAQ

What is the internal configuration of the MMBD7000?

The MMBD7000 contains two individual silicon junction diodes connected in series with a common cathode terminal.

What is the maximum operating junction temperature?

The maximum operating junction temperature for this device is 150°C.

How does the reverse recovery time affect performance?

The 4 ns reverse recovery time enables the diode to switch states rapidly, minimizing signal distortion and power loss in high-frequency switching applications.