BB207 NXP Diode (SOT23 (3-Pin)) In Stock
NXP BB207 is an FM varicap (variable capacitance) diode rated at 20 mA forward current and 15 V reverse voltage, housed in a compact SOT-23 3-pin package. Designed for voltage-controlled tuning in FM radio and VCO circuits with high capacitance ratio. Available from authorized distributors with worldwide shipping.
- Manufacturer
- NXP
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- BB207 Datasheet PDF
- Category
- Diode
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of BB207?
- FM-band varicap diode with high capacitance-to-voltage ratio optimized for voltage-controlled oscillator (VCO) tuning from 1 V to 9 V
- Rated 15 V reverse voltage with 20 mA maximum forward current, providing safe operation margins in standard 5 V tuner supply circuits
- Compact SOT-23 3-pin package enables miniaturized RF PCB layouts in handheld FM receivers and wireless communication modules
What is BB207 used for?
The BB207 is primarily used in FM broadcast tuner circuits and voltage-controlled oscillators where the diode's capacitance varies with the applied reverse bias voltage, enabling electronic channel selection across the 87.5 MHz to 108 MHz FM band. It is also applicable in phase-locked loop (PLL) frequency synthesizers, AFC (automatic frequency control) circuits, and AM/FM car radio front ends where precise capacitance tuning over a 2:1 or greater ratio is needed. The RoHS-compliant SOT-23 package suits modern compact consumer electronics and portable radio designs.
What are the specifications of BB207?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00 |
| Country of Origin | Mainland China |
What are equivalent replacements for BB207?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What reverse voltage and capacitance range does the NXP BB207 support for FM tuner circuit design?
The BB207 supports a maximum reverse voltage of 15 V and provides a capacitance variation suitable for tuning across the 87.5 MHz to 108 MHz FM broadcast band. As reverse bias increases from approximately 1 V to 9 V, the junction capacitance changes by a ratio of 2:1 or greater, enabling smooth electronic channel sweep in FM receiver front ends.
In which RF circuit topologies is the BB207 varicap diode most commonly deployed?
The BB207 is most commonly deployed in LC tank circuits within FM radio tuners, voltage-controlled oscillators, and PLL frequency synthesizers. At 20 mA maximum forward current and 15 V reverse rating, it handles standard 5 V or 9 V supply rails safely, making it suitable for portable radios, car audio receivers, and set-top box RF front ends operating in the 88 MHz to 108 MHz range.
How does the SOT-23 package of the BB207 compare to larger varicap packages for RF board layout?
The SOT-23 3-pin package measures approximately 3 mm × 1.75 mm, which is significantly smaller than older TO-92 or SOD-323 varicap housings, reducing parasitic lead inductance at FM frequencies. This compact footprint improves RF performance by minimizing stray reactance at 100 MHz and allows tighter PCB layouts in space-constrained FM tuner modules and handheld devices.
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About NXP
NXP is a leading electronic component manufacturer. FindMyChip sources NXP ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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