Low Phase Noise Varactor Diode SKYWORKS SMV1405-040LF for in Wireless Systems Operating Above 10 GHz
Key Attributes
Model Number:
SMV1405-040LF
Product Custom Attributes
Capacitance Ratio:
4.1@C0V/C30V
Diode Configuration:
Independent
DC Reverse Voltage(Vr):
30V
Series Resistance (Rs):
800mΩ
Diode Capacitance:
1.45pF@4V,1MHz
Mfr. Part #:
SMV1405-040LF
Package:
0402
Product Description
Product Overview
The Skyworks SMV1405 to SMV1430 series are silicon abrupt junction varactor diodes designed for Voltage Controlled Oscillators (VCOs) in wireless systems. These diodes feature high Q and low series resistance, making them suitable for high-Q resonators and achieving low phase noise in applications operating at frequencies above 10 GHz. They are characterized for capacitance over temperature and are available in various plastic packages.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Product Family: SMV1405 to SMV1430 Series
- Compliance: Skyworks Green, Halogen-free, RoHS-compliant
- Moisture Sensitivity Level: MSL1 at 260 C
- Lead Finish: Lead-free or Tin/lead (Sn/Pb) packaging available; Tin/lead not recommended for new designs.
Technical Specifications
| Parameter | Symbol | Minimum | Maximum | Units | Notes |
|---|---|---|---|---|---|
| Reverse voltage | VR | - | 30 | V | Absolute Maximum Rating |
| Forward current | IF | - | 20 | mA | Absolute Maximum Rating |
| Power dissipation | PD | - | 250 | mW | Absolute Maximum Rating |
| Operating temperature | TOP | -55 | +125 | C | Absolute Maximum Rating |
| Storage temperature | TSTG | -55 | +150 | C | Absolute Maximum Rating |
Electrical Specifications (TOP = 25 C)
| Part Number | CT @ 0.5 V (pF) | CT @ 1 V (pF) | CT @ 4 V (pF) | CT @ 0 V CT @ 30 V (Ratio) | RS @ 4 V, 500 MHz () | Q @ 4 V, 50 MHz (Typ.) |
|---|---|---|---|---|---|---|
| SMV1405 | 2.1 | 1.80 | 1.21 | 1.45 | 0.80 | 3200 |
| SMV1408 | 3.4 | 2.90 | 1.71 | 2.11 | 0.60 | 2900 |
| SMV1413 | 7.4 | 6.40 | 3.64 | 4.42 | 0.35 | 2400 |
| SMV1430 | 1.01 | 0.88 | 0.46 | 0.70 | 3.15 | 1680 |
Capacitance vs Reverse Voltage (Typical)
| VR (V) | CT (pF) SMV1405 | CT (pF) SMV1408 | CT (pF) SMV1413 | CT (pF) SMV1430 |
|---|---|---|---|---|
| 0 | 2.67 | 4.08 | 9.24 | 1.24 |
| 0.5 | 2.12 | 3.36 | 7.39 | 1.01 |
| 1.0 | 1.84 | 2.94 | 6.37 | 0.88 |
| 1.5 | 1.70 | 2.60 | 5.71 | 0.80 |
| 2.0 | 1.55 | 2.38 | 5.22 | 0.74 |
| 2.5 | 1.44 | 2.24 | 4.85 | 0.68 |
| 3.0 | 1.34 | 2.08 | 4.55 | 0.65 |
| 4.0 | 1.25 | 1.88 | 4.10 | 0.60 |
| 5.0 | 1.17 | 1.72 | 3.77 | 0.56 |
| 10.0 | 0.95 | 1.28 | 2.85 | 0.44 |
| 20.0 | 0.77 | 1.01 | 2.12 | 0.35 |
| 30.0 | 0.63 | 0.95 | 1.77 | 0.31 |
Packaging and Marking
| Package Type | Marking | Inductance (LS) |
|---|---|---|
| SC-79 | Cathode and A3 (SMV1405-079LF) | 0.7 nH |
| SC-79 | Cathode and A4 (SMV1413-079LF) | 0.7 nH |
| SOT-23 | 5 (SMV1405-040LF) | 1.5 nH |
| SOT-23 | DV (SMV1408-040LF) | 1.5 nH |
| SOT-23 | ER1 (SMV1413-001LF) | 0.45 nH |
| SOT-23 | ER3 (SMV1413-004LF) | 0.45 nH |
| SOD-882 | 7 (SMV1430-040LF) | 1.5 nH |
2504101957_SKYWORKS-SMV1405-040LF_C17456081.pdf
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