Low Series Resistance Varactor Diode SKYWORKS SMV1275-079LF Ideal for Wireless UHF VHF VCO Circuits
Key Attributes
Model Number:
SMV1275-079LF
Product Custom Attributes
Capacitance Ratio:
1.8@C1V/C4V
Diode Configuration:
Independent
DC Reverse Voltage(Vr):
10V
Series Resistance (Rs):
-
Diode Capacitance:
1.81pF@4V,1MHz
Mfr. Part #:
SMV1275-079LF
Package:
SC-79
Product Description
Product Overview
The Skyworks SMV1275-079LF is a silicon hyperabrupt junction tuning varactor diode engineered for battery-operated applications. Its design features a high-capacitance ratio and low-series resistance, making it suitable for low phase-noise Voltage-Controlled Oscillators (VCOs) operating at frequencies up to and beyond 2.5 GHz. This varactor is specifically recommended for low-noise and wideband UHF and VHF VCOs in wireless systems, including GSM, PCS, CDMA, and analog phones. It offers a cross-reference to the Toshiba JDV2S01E and is housed in an ultra-small SC-79 package.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Product Line: Skyworks Green
- Package Type: SC-79
- Moisture Sensitivity Level: MSL1 (260 C per JEDEC J-STD-020)
- Compliance: RoHS-compliant (Pb-free indicated by "LF" in part number)
- Cross Reference: Toshiba JDV2S01E
Technical Specifications
| Parameter | Symbol | Test Condition | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|---|---|
| Absolute Maximum Ratings | ||||||
| Reverse voltage | VR | 10 | V | |||
| Forward current | IF | 20 | mA | |||
| Power dissipation | PDIS | 250 | mW | |||
| Operating temperature | TOP | -55 | 125 | C | ||
| Storage temperature | TSTG | -55 | 150 | C | ||
| Electrical Specifications | ||||||
| Reverse current | IR | VR = 10 V | 10 | nA | ||
| Capacitance | CT | f = 1 MHz, VR = 1 V | 2.85 | 3.45 | pF | |
| f = 1 MHz, VR = 4 V | 1.35 | 1.81 | pF | |||
| Capacitance ratio | CTR | CT @ 1 V / CT @ 4 V | 1.8 | |||
| Series resistance | RS | f = 470 MHz, VR = 1 V | 0.7 | |||
| Breakdown voltage | VBR | IR = 10 A | 10 | V | ||
| SPICE Model Parameters | ||||||
| CJO | 4.7 | pF | ||||
| VJ | 0.18 | V | ||||
| M | 0.41 | |||||
| CP | 0.18 | pF | ||||
| RS | 0.8 | |||||
| LS | 0.7 | nH | ||||
Package Dimensions (SC-79):
- Width: 1.50 mm (0.060 in) Min. to 1.70 mm (0.067 in) Max.
- Length: 1.10 mm (0.043 in) Min. to 1.30 mm (0.051 in) Max.
- Height: 0.70 mm (0.028 in) Min. to 0.90 mm (0.035 in) Max.
- Lead Pitch: 0.25 mm (0.010 in) Min. to 0.35 mm (0.014 in) Max.
- Lead Width: 0.50 mm (0.020 in) Min. to 0.70 mm (0.028 in) Max.
- Lead Length: 0.20 mm (0.008 in) Min.
Tape and Reel Dimensions (SC-79):
- Standard Reel Size: 7 inches
- Standard Reel Quantity: 3000 pcs
2411220046_SKYWORKS-SMV1275-079LF_C150900.pdf
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