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Product Detailed Parameters
- Description：DIODE FM VAR CAP DUAL SOT23
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Capacitance @ Vr, F：26.3pF @ 8V, 1MHz
- Capacitance Ratio：3.3
- Capacitance Ratio Condition：C1/C7.5
- Voltage - Peak Reverse (Max)：15 V
- Diode Type：1 Pair Common Cathode
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23 (TO-236AB)
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Overview
The BB207,235 is a dual common-cathode varactor diode manufactured by NXP USA Inc. in the SOT-23 (TO-236AB) surface-mount package. It features a peak reverse voltage of 15 V and operates within a junction temperature range of -55°C to 125°C. The device exhibits a capacitance of 26.3 pF at 8 V reverse bias and 1 MHz frequency. Its capacitance ratio is specified as 3.3 under conditions of C1/C7.5. This component is classified as a variable capacitance diode designed for RF applications.
Feature Summary
- Dual common-cathode configuration for compact circuit integration
- Silicon construction optimized for FM band variable capacitance
- Surface-mount SOT-23 packaging for automated assembly
Applications
- FM radio tuner circuits
- VHF band mixer diodes
- Variable capacitance tuning networks
Procurement Notes
Verify the specific ordering suffix against current NXP documentation, as the BB207 series includes variants such as BB207,215 and BB207,235. Confirm component status, as some listings indicate discontinued status for certain suffixes. Ensure the selected part matches the required tape and reel or cut tape format for manufacturing compatibility.
Selection Notes
Select this component when a dual varactor structure is required for phase-locked loops or frequency synthesizers. The 15 V rating suits low-voltage RF tuning applications. Compare the 26.3 pF baseline capacitance and 3.3 ratio against circuit requirements to ensure adequate tuning range without exceeding voltage limits.
Part Context
The BB207 belongs to NXP's legacy FM variable capacitance double diode family. It is functionally equivalent to earlier Philips Semiconductors designs. The part serves as a discrete solution for frequency modulation tuning in consumer electronics and broadcast equipment before integration into more complex ICs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional compatibility with other dual varactor diodes if direct replacement is necessary.
