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Product Detailed Parameters
- Description：DIODE VARACTOR
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：0.83pF @ 26V, 1MHz
- Capacitance Ratio：19.5
- Capacitance Ratio Condition：C1/C26
- Voltage - Peak Reverse (Max)：28 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOD-882
- Supplier Device Package：SOD-882
Download product information
Overview
The SMV1265-040LF is a hyperabrupt junction tuning varactor diode manufactured by Skyworks Solutions, Inc. It operates within an ambient temperature range of -55 °C to +125 °C and features a single SOD-882 package with a marking code of HD1. The device exhibits a reverse breakdown voltage of 28 V at 10 μA leakage current and supports a maximum forward current of 20 mA. At 1 MHz, the capacitance ranges from 12.5 pF to 14.7 pF at 1 V reverse bias, decreasing to 0.58 pF–0.83 pF at 26 V. The typical capacitance ratio (CT1/CT26) is 19.5. Series resistance is specified at 2.4 Ω at 470 MHz under 1 V reverse bias.
Feature Summary
- High tuning ratio suitable for wideband applications
- Low series resistance for improved phase noise performance
- Designed for high-volume, low-cost manufacturing
- Small footprint package rated MSL1 at 260 °C
Applications
- Wideband RF and microwave VCOs
- Analog phase shifters
- Digital TV tuners
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status via official documentation. Check for recent discontinuation notices as availability may be restricted. Ensure storage conditions adhere to moisture sensitivity level guidelines before soldering.
Selection Notes
Select this component when high capacitance tuning ratios are required for wideband voltage-controlled oscillators. Verify that the SOD-882 package dimensions align with the target PCB layout. Ensure the operating voltage does not exceed the 28 V reverse breakdown limit. Consider the 2.4 Ω series resistance impact on circuit Q-factor at 470 MHz.
Part Context
This part belongs to the SMV1265 series of hyperabrupt junction tuning varactors. It is designed specifically for applications demanding high tuning ratios and low series resistance. The device utilizes a Green™ compliant, halogen-free packaging solution. Marking HD1 identifies the specific variant within the product line.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided datasheet. Consult Skyworks technical support for potential alternatives if this component is discontinued.
FAQ
What is the typical capacitance ratio (CT1/CT26) for the SMV1265-040LF?
The typical capacitance ratio is 19.5, calculated as the capacitance at 1 V divided by the capacitance at 26 V.
What is the maximum operating temperature for the SMV1265-040LF?
The maximum operating temperature is +125 °C.
What is the marking code for the SMV1265-040LF in the SOD-882 package?
The marking code is HD1.
