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Product Detailed Parameters
- Description：DIODE TUNING SS 30V SOT23
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：16.5pF @ 4V, 1MHz
- Capacitance Ratio：3.2
- Capacitance Ratio Condition：C2/C30
- Voltage - Peak Reverse (Max)：30 V
- Diode Type：Single
- Q @ Vr, F：400 @ 4V, 50MHz
- Operating Temperature：150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
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Overview
The MMBV2105LT1 is a silicon tuning diode designed for high-volume FM radio and TV tuning applications. It operates with a maximum reverse voltage of 30 Vdc and supports a forward current of 200 mAdc. The device features a typical capacitance of 15 pF at 4.0 Vdc, with a range of 13.5 to 16.5 pF. It provides a minimum figure of merit (Q) of 400 at 50 MHz and a typical tuning ratio of 2.9. Packaged in SOT-23, it serves as a solid-state replacement for mechanical tuning methods.
Feature Summary
- High Q factor for improved signal quality
- Controlled and uniform tuning ratio
- Standard capacitance tolerance of 10%
- Available in lead-free packages
Applications
- FM Radio tuning circuits
- TV tuning and AFC systems
- General frequency control applications
Procurement Notes
Verify the specific ordering suffix to confirm package type and compliance status. The base part number indicates surface mount packaging. Confirm availability of lead-free variants if required by environmental regulations. Check datasheet revision dates for updated electrical characteristics before finalizing procurement specifications.
Selection Notes
Select this component when a standard capacitance around 15 pF is required for RF tuning. Ensure the operating reverse voltage does not exceed 30 Vdc. Consider the thermal derating requirements above 25°C for power dissipation limits. Verify that the SOT-23 package dimensions fit the PCB layout constraints.
Part Context
This device belongs to the MMBV21xxLT1 series of silicon tuning diodes from onsemi. It is part of a family including variants like MMBV2101LT1 and MMBV2107LT1, differentiated primarily by their capacitance values. These components are engineered to replace mechanical tuning capacitors in consumer electronics.
Replacement Considerations
Direct replacements include other members of the MMBV21xxLT1 series with similar capacitance values, such as MMBV2103LT1 or MMBV2107LT1, provided the specific capacitance tolerance meets design requirements. Cross-reference with MV2105 for through-hole equivalents if package changes are permissible.
