MMBV2107LT1

Overview

The MMBV2107LT1 is a silicon tuning diode from the MMBV21xx series, designed for high-volume FM radio and TV tuning applications. It provides solid-state reliability as a replacement for mechanical tuning methods. The device features a standard capacitance tolerance of 10% and controlled uniform tuning ratios. Key electrical parameters include a reverse voltage rating of 30 Vdc and a forward current of 200 mAdc. At 4.0 Vdc and 1.0 MHz, the typical diode capacitance is 22 pF with a range of 19.8 to 24.2 pF. The figure of merit (Q) at 50 MHz is typically 2.9, ranging from 2.5 to 3.2. The junction temperature maximum is +150°C.

Feature Summary

• High Q factor for efficient frequency control
• Controlled and uniform tuning ratio across operating range
• Standard 10% capacitance tolerance for design predictability

Applications

• FM Radio tuning circuits
• TV tuning and AFC systems
• General frequency control applications

Procurement Notes

Verify the specific ordering suffix when sourcing components. The 'T1' suffix indicates tape and reel packaging, while its absence denotes bulk packaging. Confirm Pb-free status by checking for the 'G' suffix or microdot marking. Ensure the part number matches the required capacitance value within the MMBV2107 variant specifications before procurement.

Selection Notes

Select this component based on the required nominal capacitance of 22 pF and the 30 Vdc reverse voltage limit. Consider the SOT-23 package constraints for surface mount assembly. Evaluate the Q factor requirements at the target operating frequency, noting that performance varies with bias voltage. Ensure thermal management supports the specified power dissipation limits at ambient temperatures above 25°C.

Part Context

This device belongs to the MMBV2101LT1 Series, which includes variants like MV2105, MV2101, MV2109, and LV2209. These parts share similar structural designs but differ in capacitance values and package types such as TO-92 and SOT-23. The series is optimized for replacing mechanical tuning elements in consumer electronics requiring reliable solid-state performance.

Replacement Considerations

Direct substitutes within the same series include MMBV2105LT1 and MMBV2109LT1, though capacitance values differ. For equivalent capacitance, verify if other manufacturers offer compatible voltage variable capacitance diodes with matching pinouts and electrical characteristics. Cross-reference datasheets for Q factor and breakdown voltage compatibility.