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BB173X The BB173X is a VHF variable capacitance diode from NXP Semiconductors, featuring a maximum reverse voltage of 32V and a typical capacitance of 2.6 pF at 28V. It is housed in an ultra-small SOD523 (SC-79) surface-mount package.
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BB173X

Available from 1 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The BB173X is a VHF variable capacitance diode from NXP Semiconductors, featuring a maximum reverse voltage of 32V and a typical capacitance of 2.6 pF at 28V. It is housed in an ultra-small SOD523 (SC-79) surface-mount package.
✓ Total Stock: 3,000 pcs

BB173X Available from 1 distributor

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BB173X Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacitance @ Vr, F
Capacitance Ratio
Capacitance Ratio Condition
Diode Type
Mounting Type
Operating Temperature
Package / Case
Storage Temperature
Supplier Device Package
Voltage
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BB173X Description

Short technical summary and product information.

The BB173X is a VHF variable capacitance diode (varactor) manufactured by NXP Semiconductors, designed for voltage-controlled oscillator (VCO) applications. It is fabricated using planar technology and encapsulated in the ultra-small SOD523 (SC-79) SMD plastic package.

 

Key electrical characteristics include a maximum reverse voltage of 32V (35V peak with a 10kΩ series resistor), a maximum forward current of 20mA, and a very low series resistance of 0.65Ω typical at 100MHz. The diode offers a capacitance of 34.65 to 42.35 pF at 1V and 2.361 to 2.754 pF at 28V, with a typical capacitance ratio (C1/C28) of 15. The operating junction temperature range is -55°C to +125°C.

 

This varactor diode is ideal for VHF tuning circuits where excellent linearity and low series resistance are required. The ultra-small SOD523 package enables compact PCB designs in portable and space-constrained equipment.

BB173X Quick Information

Product Type: Variable Capacitance Diode (Varicap, Varactor)
Canonical Name: BB173 VHF Variable Capacitance Diode
Subcategory: VHF Varactor Diode

BB173X Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BB173X Features

  • VHF variable capacitance diode for VCO applications.
  • Maximum reverse voltage of 32V.
  • Typical capacitance of 2.6 pF at 28V.
  • Low series resistance of 0.65Ω typical.
  • Ultra-small SOD523 surface-mount package.

BB173X Applications

  • Voltage Controlled Oscillators (VCO) for VHF bands.
  • RF tuning circuits in portable communication devices.
  • Frequency modulation and phase-locked loop circuits.

BB173X FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the BB173X?

The maximum reverse voltage is 32V, with a peak value of 35V when used in series with a 10kΩ resistor.

What is the capacitance of the BB173X at 28V?

At VR=28V and f=1MHz, the capacitance is 2.361 pF minimum, 2.6 pF typical, and 2.754 pF maximum.

What package does the BB173X come in?

The BB173X is available in the SOD523 (SC-79) ultra-small SMD plastic package.

What is the operating temperature range of the BB173X?

The junction temperature range is -55°C to +125°C.

What is the typical series resistance of the BB173X?

The typical series resistance is 0.65Ω, with a maximum of 0.8Ω, measured at f=100MHz and Cd=30pF.

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