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Product Detailed Parameters
- Description：DIODE VARACTOR 15V 20MA 0402
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：0.78pF @ 4.7V, 50MHz
- Capacitance Ratio：10
- Capacitance Ratio Condition：C0.3/C4.7
- Voltage - Peak Reverse (Max)：15 V
- Diode Type：Single
- Q @ Vr, F：1500 @ 3V, 50MHz
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：0402 (1005 Metric)
- Supplier Device Package：402
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Overview
The SMV1247-040LF is a silicon hyperabrupt junction tuning varactor diode designed for low tuning voltage Voltage Controlled Oscillators (VCOs). It operates within an operating temperature range of -55°C to +125°C and features a maximum reverse voltage of 15 V. The device exhibits a typical capacitance ratio of 12 between 0.3 V and 4.7 V, with a nominal capacitance of 7 pF at 0.3 V. Electrical specifications include a series resistance of 4.6 Ω minimum at 3 V and 500 MHz, and a quality factor of 1500 minimum at 3 V and 50 MHz.
Feature Summary
- Hyperabrupt junction design optimized for high capacitance ratios in low tuning voltage applications
- Moisture Sensitivity Level 1 rated for lead-free soldering up to 260 °C per JEDEC standards
- RoHS compliant Green package construction
Applications
- Low tuning voltage Voltage Controlled Oscillators (VCOs)
- High-volume commercial systems
Procurement Notes
Verify the component against the official Skyworks Solutions datasheet document number 200061X. Confirm that the marking 'H' matches the SOD-882 package variant. Ensure compliance with RoHS directives and check for any specific handling instructions regarding moisture sensitivity level 1 during assembly processes.
Selection Notes
Select this component when designing circuits requiring a high capacitance ratio under low bias voltages. Verify that the required capacitance values align with the specified performance across the target frequency range. Ensure the application environment remains within the specified operating temperature limits to maintain electrical stability.
Part Context
This part belongs to the SMV1247-SMV1255 series of silicon hyperabrupt junction varactors. These devices are characterized for capacitance and resistance over temperature variations. The series provides various capacitance options packaged in SC-79, SOD-323, SOT-23, and SOD-882 formats for different footprint requirements.
Replacement Considerations
SMV1247-079LF
FAQ
What is the typical capacitance ratio for the SMV1247-040LF?
The typical capacitance ratio (C0.3V/C4.7V) is 12.
Is the SMV1247-040LF suitable for lead-free soldering?
Yes, it is rated MSL1 at 260 °C per JEDEC J-STD-020 and can be used for lead or lead-free soldering.
What is the maximum reverse voltage rating?
The absolute maximum reverse voltage rating is 15 V.
