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Product Detailed Parameters
- Description：DIODE VHF VAR CAP 32V SOD523
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Capacitance @ Vr, F：2.89pF @ 28V, 1MHz
- Capacitance Ratio：22
- Capacitance Ratio Condition：C1/C28
- Voltage - Peak Reverse (Max)：32 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：SOD-523
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Overview
The BB182 is a planar technology variable capacitance diode housed in an SOD523 (SC-79) ultra-small plastic package. It features high linearity and excellent matching performance achieved through gliding matching and Direct Matching Assembly (DMA). The device operates with a maximum reverse voltage of 32 V and a peak reverse voltage of 35 V. At 1 MHz, the diode capacitance ranges from 52 pF to 62 pF at 1 V reverse bias, and from 2.48 pF to 2.89 pF at 28 V reverse bias. The Cd(1V)/Cd(28V) ratio is typically 22, with a minimum of 20.6. Series resistance is typically 1.0 Ω at 100 MHz.
Feature Summary
- High linearity for signal integrity
- Excellent matching to 2% via DMA procedure
- Ultra-small plastic SMD package
Applications
- Electronic tuning in VHF television tuners, Band A up to 160 MHz
- Voltage Controlled Oscillators (VCO)
Procurement Notes
Verify the specific ordering suffix against current NXP documentation to confirm availability and packaging details. Ensure the component status matches design requirements, as product statuses may change over time. Cross-reference the marking code '2' on the physical component to validate authenticity and correct part identification before integration into production.
Selection Notes
Select the BB182 when compact form factors are required for VHF applications due to its SOD523 package. Consider the tight 2% capacitance matching if precise tuning across multiple channels or balanced circuits is necessary. Evaluate the low series resistance and high capacitance ratio for efficient frequency modulation performance in oscillator designs.
Part Context
The BB182 belongs to the category of VHF variable capacitance diodes manufactured by NXP Semiconductors. It utilizes planar technology to ensure consistent electrical characteristics within the specified operating temperature range. The component is designed specifically for surface-mount assembly, supporting automated manufacturing processes while maintaining high reliability in consumer electronics applications.
Replacement Considerations
No public confirmed substitute part numbers are documented in the provided source material.
FAQ
How is the cathode identified on the BB182?
The marking bar on the component indicates the cathode.
What is the typical capacitance ratio between 1 V and 28 V reverse bias?
The Cd(1V)/Cd(28V) ratio is typically 22 at 1 MHz.
What is the maximum storage temperature for the BB182?
The maximum storage temperature is +150 °C.
