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1SV279,H3F Toshiba 1SV279,H3F is a silicon epitaxial planar varactor diode with 15V reverse voltage, typical capacitance ratio of 2.5, and low series resistance of 0.2 Ω, designed for VCO applications in V/UHF bands.
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1SV279,H3F

Available from 1 distributors
Mfr Name: Toshiba
Toshiba
Toshiba 1SV279,H3F is a silicon epitaxial planar varactor diode with 15V reverse voltage, typical capacitance ratio of 2.5, and low series resistance of 0.2 Ω, designed for VCO applications in V/UHF bands.
✓ Total Stock: 254 pcs

1SV279,H3F Available from 1 distributor

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1SV279,H3F 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
Industrial Grade
Lead Spacing
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Package / Case
Reverse Current
Reverse Voltage
Supplier Device Package
Tape & Reel
Voltage
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1SV279,H3F Description

Short technical summary and product information.

The Toshiba 1SV279,H3F is a variable capacitance diode (varactor) manufactured using silicon epitaxial planar technology. It is specifically designed for voltage-controlled oscillator (VCO) applications in the VHF and UHF frequency bands.

 

Key electrical characteristics include a reverse voltage rating of 15V, reverse current of 3 nA maximum, and a typical capacitance ratio of 2.5 (C2V / C10V). The diode offers low series resistance of 0.2 Ω typical (0.4 Ω max) at 5V and 470 MHz, enabling efficient high-frequency operation.

 

The device is available in a surface-mount SC-79 (SOD-523) package, suitable for compact designs. Operating junction temperature range is up to 125°C, with storage from -55°C to 125°C.

1SV279,H3F Quick Information

Product Type: Variable Capacitance Diode (Varicap, Varactor)
Series: 1SV279
Canonical Name: Toshiba 1SV279,H3F Variable Capacitance Diode
Subcategory: Varicap / Varactor

1SV279,H3F Compliance

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

1SV279,H3F Features

  • High capacitance ratio of 2.5 typical.
  • Low series resistance of 0.2 Ω.
  • Surface mount SC-79 package.
  • 15V reverse voltage rating.
  • Designed for V/UHF band VCO.

1SV279,H3F Applications

  • Voltage-controlled oscillators for V/UHF.
  • RF tuning circuits in radio equipment.
  • Compact frequency synthesizer modules.
  • Signal filtering and impedance matching.
  • Portable communication devices.

1SV279,H3F FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse voltage rating of the 1SV279,H3F?

The reverse voltage (VR) is rated at 15V absolute maximum.

What is the capacitance ratio of this varactor diode?

The typical capacitance ratio C2V/C10V is 2.5.

What package is the 1SV279,H3F available in?

It is available in SC-79 (SOD-523) surface mount package.

What is the series resistance of the 1SV279,H3F?

The typical series resistance (rs) is 0.2 Ω at VR=5V and f=470 MHz, with a maximum of 0.4 Ω.

What is the operating temperature range for this device?

The junction temperature can reach up to 125°C, and storage temperature range is -55 to 125°C.

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