Overview
The BB149A,115 is a UHF variable capacitance diode manufactured by NXP USA Inc. This component is designed for applications requiring tunable capacitance in ultra-high frequency (UHF) ranges. Despite being marked as obsolete, it remains a significant component in legacy systems and specific niche applications. The diode is encapsulated in a very small SMD plastic package, specifically the SOD323 (SC-76) package, which is suitable for surface mount technology.
Key Specifications
| Category | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | BB149A,115 |
| Description | DIODE UHF VAR CAP 30V SOD323 |
| Package / Case | SC-76, SOD-323 |
| Mounting Type | Surface Mount |
| Diode Type | Single |
| Part Status | Obsolete |
| Operating Temperature | -55°C ~ 125°C (TJ) |
| Voltage - Peak Reverse (Max) | 30 V |
| Capacitance @ Vr, F | 2.225 pF @ 28 V, 1 MHz |
| Capacitance Ratio | 10.9 |
| Capacitance Ratio Condition | C1/C28 |
| RoHS Status | RoHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Terminal Finish | Tin (Sn) |
Key Features
- Variable Capacitance: The BB149A,115 offers tunable capacitance, making it suitable for applications requiring adjustable capacitance in UHF ranges.
- Small Package Size: Encapsulated in the SOD323 (SC-76) package, this diode is ideal for space-constrained designs.
- Wide Operating Temperature Range: Operates from -55°C to 125°C, ensuring reliability in various environmental conditions.
- High Capacitance Ratio: With a capacitance ratio of 10.9, this diode provides significant capacitance variation with voltage changes.
- Surface Mount Technology: Designed for surface mount applications, facilitating easy integration into modern PCB designs.
Applications
- RF and Microwave Circuits: Suitable for use in radio frequency (RF) and microwave circuits where tunable capacitance is required.
- Tuning and Matching Networks: Often used in tuning and matching networks for antennas, filters, and amplifiers.
- Legacy Systems: Despite being obsolete, it remains relevant for maintenance and repair of older systems that rely on this component.
- Niche Electronic Devices: Used in specialized electronic devices where specific capacitance characteristics are necessary.
Q & A
- What is the BB149A,115 used for?
The BB149A,115 is a UHF variable capacitance diode used in applications requiring tunable capacitance in ultra-high frequency ranges.
- What is the package type of the BB149A,115?
The BB149A,115 is packaged in the SOD323 (SC-76) package.
- What is the operating temperature range of the BB149A,115?
The operating temperature range is from -55°C to 125°C (TJ).
- What is the peak reverse voltage of the BB149A,115?
The peak reverse voltage is 30 V.
- What is the capacitance ratio of the BB149A,115?
The capacitance ratio is 10.9.
- Is the BB149A,115 RoHS compliant?
Yes, the BB149A,115 is RoHS3 compliant.
- What is the moisture sensitivity level (MSL) of the BB149A,115?
The MSL is 1 (Unlimited).
- Why is the BB149A,115 marked as obsolete?
The BB149A,115 is marked as obsolete, meaning it is no longer in production, but it may still be available from inventory or through secondary sources.
- What are some common applications of the BB149A,115?
Common applications include RF and microwave circuits, tuning and matching networks, and legacy systems.
- How is the BB149A,115 mounted?
The BB149A,115 is mounted using surface mount technology.
- What is the terminal finish of the BB149A,115?
The terminal finish is Tin (Sn).
