BB439 The Infineon BB439 is a Silicon Variable Capacitance Diode designed for VHF tuned circuit applications. It offers a high figure of merit and comes in a SOD323 package.
Mfr Part #:

BB439

Available from 2 distributors
Mfr Name: Infineon
Infineon
The Infineon BB439 is a Silicon Variable Capacitance Diode designed for VHF tuned circuit applications. It offers a high figure of merit and comes in a SOD323 package.
✓ Total Stock: 4,278 pcs
$ Price Range: $0.99

BB439 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,139 pcs
2139 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,139 pcs
2139 pcs On Request 1 On Request On Request On Request On Request On Request

BB439 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Forward Current
Inductance
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
SVHC Present
Storage Temperature

BB439 Description

Short technical summary and product information.

The Infineon BB439 is a Silicon Variable Capacitance Diode specifically engineered for VHF tuned circuit applications. This component is characterized by its high figure of merit, making it suitable for demanding RF applications.

 

The diode operates with a maximum reverse voltage of 28V and a peak reverse voltage of 30V. It can handle a forward current of up to 20mA. The operating temperature range is from -55°C to 125°C, with storage temperatures ranging from -55°C to 150°C.

 

Key electrical characteristics include a typical diode capacitance of 31.5pF at 2V and 1MHz, and a capacitance ratio (CT2/CT25) of 6.9. The series resistance is typically 0.35 Ohms at 100MHz, and the figure of merit (Q) is 280 at 50MHz (VR=3V) and 600 at 200MHz (VR=25V).

 

The BB439 is supplied in a compact SOD323 surface-mount package. It is Pb-free and RoHS compliant.

BB439 Quick Information

Product Type: Variable Capacitance Diode
Canonical Name: BB439 Silicon Variable Capacitance Diode
Subcategory: Variable Capacitance Diode

BB439 Compliance

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

BB439 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

BB439 Features

  • Silicon Variable Capacitance Diode
  • Designed for VHF tuned circuit applications
  • High figure of merit
  • Pb-free (RoHS compliant) package
  • SOD323 surface mount package

BB439 Applications

  • Used in voltage-controlled oscillator (VCO) circuits.
  • Ideal for RF filter tuning applications.
  • Suitable for phase shifter designs.
  • Employed in automatic frequency control (AFC) systems.

BB439 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the BB439?

28V.

What is the maximum forward current?

20mA.

What package is the BB439 available in?

SOD323 surface-mount package.

What is the capacitance at 2V reverse bias?

31.5pF typical.

What is the capacitance ratio?

6.9 typical from 2V to 25V.

What is the operating temperature range?

-55°C to 125°C.

What is the series resistance?

0.35Ω typical at VR=10V and 100MHz.

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