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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：1.81pF @ 4V, 1MHz
- Capacitance Ratio：1.8
- Capacitance Ratio Condition：C1/C4
- Voltage - Peak Reverse (Max)：10 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 SMV1275-079LF is a silicon hyperabrupt junction tuning varactor diode designed for battery operation. It features an ultra-small SC-79 package with a series inductance of 0.7 nH. The device supports a maximum reverse voltage of 10 V and operates within a temperature range of -55 °C to +125 °C. Electrical specifications include a typical capacitance of 3.45 pF at 1 V reverse bias, 1.81 pF at 4 V, and a series resistance of 0.7 Ω at 470 MHz. The component achieves a capacitance ratio of 1.8 between 1 V and 4 V.
Feature Summary
- Cross-compatible with Toshiba JDV2S01E
- Optimized for low phase-noise Voltage-Controlled Oscillators (VCOs)
- RoHS-compliant and halogen-free construction
Applications
- VHF TV tuners
- Low-noise UHF and VHF VCOs
- Wireless systems operating up to and above 2.5 GHz
- GSM, PCS, CDMA, and analog phone applications
Procurement Notes
Verify the specific datasheet revision and manufacturing date code upon order confirmation. Confirm that the ordering suffix matches the required lead-free packaging standard. Ensure all handling instructions regarding moisture sensitivity level 1 are strictly followed during storage and solder assembly to prevent reliability issues.
Selection Notes
Select this component when a high-capacitance ratio and low-series resistance are required for wideband tuning applications. The SC-79 package is suitable for space-constrained designs. Verify that the 10 V reverse voltage rating aligns with the circuit's maximum operating conditions to ensure long-term device reliability.
Part Context
This part belongs to Skyworks Solutions' hyperabrupt junction varactor family. These components utilize specialized silicon processing to achieve superior tuning linearity compared to abrupt junction devices. The product line targets RF front-end modules requiring precise frequency control in compact form factors.
Replacement Considerations
The SMV1275-079LF is documented as cross-compatible with the Toshiba JDV2S01E. Verify pinout orientation and exact electrical tolerances before substitution.
