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Product Detailed Parameters
- Description：DIODE VARACTOR 15V 20MA SC-79
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：5.3pF @ 6V, 50MHz
- Capacitance Ratio：3.5
- Capacitance Ratio Condition：C1/C6
- Voltage - Peak Reverse (Max)：15 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-79, SOD-523
- Supplier Device Package：SC-79
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Overview
The SMV1236-079LF is a silicon hyperabrupt junction tuning varactor diode from the SMV123x series, manufactured by Skyworks Solutions. It is housed in an SC-79 surface-mount package with a parasitic series inductance of 0.7 nH. The device supports a maximum reverse voltage of 15 V and a forward current of 20 mA. At 1 V reverse bias, the typical capacitance is 18.50 pF, decreasing to 5.30 pF at 6 V. The series resistance is typically 0.50 Ω at 3 V and 500 MHz. Operating temperature ranges from -55 °C to +125 °C.
Feature Summary
- Designed for low tuning voltage Voltage Controlled Oscillators (VCOs) operating at frequencies over 10 GHz.
- Low series resistance enables high-Q resonators suitable for wireless system applications.
- Characterized for capacitance and resistance stability across the full operating temperature range.
Applications
- Low tuning voltage VCOs
- High-Q resonators in wireless system VCOs
- High-volume commercial systems
Procurement Notes
Verify component authenticity against official Skyworks documentation before integration. Confirm that the specific ordering suffix matches the required package type and lead-free compliance standards. Ensure handling procedures adhere to industry-standard ESD precautions during storage and assembly.
Selection Notes
Select this component when a high capacitance ratio and minimal series resistance are required for low phase noise performance. Verify that the 15 V reverse voltage rating aligns with the circuit's tuning requirements. Consider the SC-79 footprint dimensions and tape-and-reel packaging specifications for automated manufacturing processes.
Part Context
This part belongs to the SMV123x family of hyperabrupt junction varactors. Other members include the SMV1231 through SMV1237, which offer varying capacitance values while sharing similar electrical characteristics and package options such as SOD-323, SOT-23, and SC-70.
Replacement Considerations
No direct public substitute part numbers are documented for this specific model. Designers should evaluate other members of the SMV123x series or consult manufacturer application notes for alternative components with compatible electrical parameters.
FAQ
What is the package inductance for the SMV1236-079LF?
The package inductance (LS) for the SMV1236-079LF is 0.7 nH.
What is the typical capacitance ratio for this device?
The typical capacitance ratio (CT @ 1V / CT @ 6V) is 3.5.
Is this component RoHS compliant?
Yes, the 'LF' designation indicates that the component is lead-free and RoHS compliant.
