Overview
The BB187,135 is a VHF variable capacitance diode produced by NXP USA Inc. This component is designed using planar technology and is packaged in an ultra-small SOD523 (SC-79) surface mount plastic SMD package. It is particularly noted for its excellent matching performance, which is achieved through a gliding process. This diode is suitable for applications requiring precise capacitance control and low series resistance.
Key Specifications
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| VR | Reverse Voltage | - | - | 32 | V | |
| VRM | Peak Reverse Voltage | in series with a 10 kΩ resistor | - | - | 35 | V |
| IF | Forward Current | - | - | 20 | mA | |
| Tstg | Storage Temperature | - | -55 | +150 | °C | |
| Tj | Junction Temperature | - | -55 | +125 | °C | |
| IR | Reverse Current | VR = 30 V; Tj = 25 °C | - | - | 10 | nA |
| rs | Diode Series Resistance | f = 470 MHz; VR = 5 V | - | - | 0.75 | Ω |
| Cd | Diode Capacitance | f = 1 MHz; VR = 2 V | 29.3 | - | 34.2 | pF |
| Cd | Diode Capacitance | f = 1 MHz; VR = 25 V | 2.57 | 2.75 | 2.92 | pF |
| Capacitance Ratio | - | f = 1 MHz | - | - | 11 | - |
| Capacitance Matching | - | VR = 2 V to 25 V; in a sequence of 10 diodes (gliding) | - | - | 2% | - |
Key Features
- Planar Technology: The BB187,135 is manufactured using planar technology, ensuring high reliability and performance.
- Ultra-Small Package: It is packaged in a SOD523 (SC-79) ultra-small plastic SMD package, making it ideal for space-constrained applications.
- Excellent Matching Performance: Achieved through a gliding process, this diode offers excellent capacitance matching, which is crucial for precise capacitance control.
- Low Series Resistance: With a series resistance of up to 0.75 Ω at 470 MHz, it minimizes signal loss and ensures efficient operation.
- Wide Operating Temperature Range: The diode can operate over a storage temperature range of -55°C to +150°C and a junction temperature range of -55°C to +125°C.
Applications
- VHF Applications: The BB187,135 is specifically designed for VHF (Very High Frequency) applications, making it suitable for use in radio frequency circuits.
- Tuning and Filtering Circuits: Its variable capacitance feature makes it ideal for tuning and filtering circuits in various electronic devices.
- Communication Systems: It can be used in communication systems where precise capacitance control is necessary.
- Consumer Electronics: The diode is also used in consumer electronics such as radios, TVs, and other devices requiring VHF tuning.
Q & A
- What is the BB187,135 used for?
The BB187,135 is a VHF variable capacitance diode used in applications requiring precise capacitance control, such as tuning and filtering circuits in radio frequency systems.
- What is the package type of the BB187,135?
The BB187,135 is packaged in an ultra-small SOD523 (SC-79) surface mount plastic SMD package.
- What is the maximum reverse voltage of the BB187,135?
The maximum reverse voltage of the BB187,135 is 32 V.
- What is the typical series resistance of the BB187,135?
The typical series resistance of the BB187,135 is up to 0.75 Ω at 470 MHz.
- What is the operating temperature range of the BB187,135?
The storage temperature range is -55°C to +150°C, and the junction temperature range is -55°C to +125°C.
- Is the BB187,135 suitable for automotive applications?
No, the BB187,135 is not qualified for automotive use unless specifically stated by NXP Semiconductors. Using it in automotive applications is at the customer's own risk and without warranty from NXP Semiconductors.
- What is the capacitance range of the BB187,135?
The diode capacitance ranges from 29.3 pF at 2 V to 2.57 pF at 25 V, measured at 1 MHz.
- How is the capacitance matching of the BB187,135?
The capacitance matching is excellent, with a variation of up to 2% in a sequence of 10 diodes (gliding process).
- What is the forward current limit of the BB187,135?
The maximum forward current is 20 mA.
- Where can I find more detailed specifications of the BB187,135?
More detailed specifications can be found in the product data sheet available on the NXP Semiconductors website or through distributors like Digi-Key.
