Silicon Hyperabrupt Junction Tuning Varactors Skyworks SMV2019-079LF for RF Microwave VCO Applications
Skyworks SMV2019 to SMV2023 Series: Hyperabrupt Junction Tuning Varactors
Product Overview
The Skyworks SMV2019 to SMV2023 series are silicon hyperabrupt junction varactor diodes designed for low phase noise voltage-controlled oscillators (VCOs) in wireless systems. Their high-capacitance ratio at low reverse voltage and low series resistance make them ideal for RF and microwave VCOs and phase shifters. These varactors are rated MSL1, 260 C per JEDEC J-STD-020 and are available in various package types, including SOT-23, SOD-323, SC-79, and SOD-882.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Product Type: Hyperabrupt Junction Tuning Varactors
- Material: Silicon
- Compliance: Skyworks Green products are compliant with all applicable legislation and are halogen-free. Pb-free / RoHS-compliant packages are denoted by "LF" or the Pb-free symbol.
Technical Specifications
Absolute Maximum Ratings
| Parameter | Symbol | Minimum | Maximum | Units |
|---|---|---|---|---|
| Reverse voltage | VR | 22 | 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
| Part Number | CT @ 4 V (pF) Min | CT @ 4 V (pF) Max | CT @ 20 V (pF) Min | CT @ 20 V (pF) Max | CT @ 4 V / CT @ 20 V Ratio Min | Q @ 4 V, 50 MHz Typical |
|---|---|---|---|---|---|---|
| SMV2019 | 0.65 | 0.95 | 0.26 | 0.34 | 2.30 | 500 |
| SMV2020 | 1.20 | 1.53 | 0.30 | 0.43 | 2.80 | 500 |
| SMV2022 | 2.50 | 3.30 | 0.60 | 0.85 | 3.00 | 500 |
| SMV2023 | 4.40 | 5.40 | 0.90 | 1.20 | 4.20 | 500 |
Note: Reverse current, IR (VR = 16 V): 50 nA maximum.
Capacitance vs. Reverse Voltage
| VR (V) | CT (pF) SMV2019 | CT (pF) SMV2020 | CT (pF) SMV2022 | CT (pF) SMV2023 |
|---|---|---|---|---|
| 0 | 2.22 | 3.20 | 7.41 | 12.33 |
| 0.5 | 1.77 | 2.59 | 5.94 | 9.90 |
| 1.0 | 1.51 | 2.25 | 5.14 | 8.60 |
| 1.5 | 1.33 | 2.01 | 4.56 | 7.62 |
| 2.0 | 1.20 | 1.83 | 4.14 | 6.94 |
| 2.5 | 1.08 | 1.68 | 3.78 | 6.34 |
| 3.0 | 0.98 | 1.56 | 3.49 | 5.88 |
| 3.5 | 0.89 | 1.46 | 3.23 | 5.45 |
| 4.0 | 0.81 | 1.36 | 3.01 | 5.09 |
| 5.0 | 0.66 | 1.19 | 2.54 | 4.42 |
| 6.0 | 0.55 | 1.03 | 2.18 | 3.77 |
| 7.0 | 0.48 | 0.88 | 1.80 | 3.18 |
| 8.0 | 0.44 | 0.75 | 1.50 | 2.63 |
| 9.0 | 0.40 | 0.64 | 1.29 | 2.21 |
| 10.0 | 0.38 | 0.57 | 1.11 | 1.86 |
| 11.0 | 0.37 | 0.52 | 1.03 | 1.68 |
| 12.0 | 0.35 | 0.48 | 0.96 | 1.54 |
| 13.0 | 0.34 | 0.45 | 0.91 | 1.44 |
| 14.0 | 0.33 | 0.43 | 0.87 | 1.37 |
| 15.0 | 0.32 | 0.41 | 0.83 | 1.30 |
| 16.0 | 0.32 | 0.39 | 0.81 | 1.25 |
| 17.0 | 0.31 | 0.38 | 0.78 | 1.20 |
| 18.0 | 0.31 | 0.37 | 0.76 | 1.16 |
| 19.0 | 0.30 | 0.36 | 0.75 | 1.13 |
| 20.0 | 0.30 | 0.35 | 0.73 | 1.09 |
SPICE Model Parameters
| Part Number | CJO (pF) | VJ (V) | M | CP (pF) | RS () | LS (nH) |
|---|---|---|---|---|---|---|
| SMV2019-079LF | 2.25 | 3.5 | 1.4 | 0.07 | 4.8 | 0.7 |
| SMV2019-040LF | 2.25 | 3.5 | 1.4 | 0.07 | 4.8 | 0.45 |
| SMV2020-079LF | 3.20 | 4.4 | 1.45 | 0 | 2.5 | 0.7 |
| SMV2022-004LF | 7.30 | 4.0 | 1.4 | 0 | 2.2 | 1.5 |
| SMV2023-011LF | 12.23 | 4.0 | 1.4 | 0 | 1.6 | 1.5 |
Packaging and Marking
| Part Number | Package Type | Marking | LS (nH) |
|---|---|---|---|
| SMV2019-079LF | SC-79 Green | Cathode and YX | 0.7 |
| SMV2019-040LF | SOT-23 | Z | 0.45 |
| SMV2020-079LF | SOD-323 Green | Cathode and YY | 0.7 |
| SMV2022-004LF | SOD-882 Green | DJ3 | 1.5 |
| SMV2023-011LF | Single | DK | 1.5 |
Note: The Pb-free symbol or LF in the part number denotes a lead-free, RoHS-compliant package unless otherwise noted as Green.
Moisture Sensitivity Level
The SMV2019 to SMV2023 varactors are rated to Moisture Sensitivity Level 1 (MSL1) at 260 C.
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