Overview
The BB181,135 is a variable capacitance diode produced by NXP USA Inc. This component is fabricated using planar technology and is encapsulated in the ultra-small plastic SMD package SOD523 (SC-79). It is designed for applications requiring precise capacitance control over a range of reverse voltages.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Reverse Voltage (VR) | - | - | - | 30 | V |
| Forward Current (IF) | - | - | - | 20 | mA |
| Storage Temperature (Tstg) | - | -55 | - | 150 | °C |
| Junction Temperature (Tj) | - | -55 | - | 150 | °C |
| Reverse Current (IR) at VR = 30 V, Tj = 25 °C | - | - | - | 10 | nA |
| Reverse Current (IR) at VR = 30 V, Tj = 85 °C | - | - | - | 200 | nA |
| Diode Series Resistance (rs) at f = 470 MHz, Cd = 9 pF | - | - | - | 3 | Ω |
| Diode Capacitance (Cd) at f = 1 MHz, VR = 0.5 V | - | 8 | - | 17 | pF |
| Diode Capacitance (Cd) at f = 1 MHz, VR = 28 V | - | 0.7 | - | 1.055 | pF |
| Diode Capacitance Ratio (Cd(0.5V)/Cd(28V)) at f = 1 MHz | - | 12 | - | 16 | - |
Key Features
- Excellent linearity
- Ultra small plastic SMD package (SOD523 / SC-79)
- High capacitance ratio (Cd(0.5V)/Cd(28V)) of 12 to 16
Applications
- Electronic tuning in satellite tuners
- Tunable coupling
- Voltage Controlled Oscillators (VCO)
Q & A
- What is the BB181,135 used for?
The BB181,135 is used for electronic tuning in satellite tuners, tunable coupling, and Voltage Controlled Oscillators (VCO).
- What is the package type of the BB181,135?
The BB181,135 is encapsulated in the ultra-small plastic SMD package SOD523 (SC-79).
- What is the maximum reverse voltage for the BB181,135?
The maximum reverse voltage for the BB181,135 is 30 V.
- What is the typical capacitance range of the BB181,135 at 1 MHz?
The typical capacitance range at 1 MHz is from 8 pF at 0.5 V to 1.055 pF at 28 V.
- What is the diode series resistance of the BB181,135?
The diode series resistance is up to 3 Ω at f = 470 MHz and Cd = 9 pF.
- What are the storage and junction temperature limits for the BB181,135?
The storage and junction temperature limits are from -55 °C to +150 °C.
- Is the BB181,135 RoHS compliant?
Yes, the BB181,135 is lead-free and RoHS compliant.
- What is the forward current limit for the BB181,135?
The forward current limit is 20 mA.
- How does the capacitance of the BB181,135 change with temperature?
The capacitance changes with temperature as shown in the temperature coefficient of diode capacitance graph in the datasheet.
- What is the typical reverse current at 25 °C and 85 °C?
The typical reverse current is up to 10 nA at 25 °C and up to 200 nA at 85 °C, both at VR = 30 V.
