SMV2025 Series

Surface Mount, Silicon Hyperabrupt Tuning Varactor Diodes

The SMV2025 series are silicon surface mount, hyperabrupt tuning varactor diodes, excellent for use as high-Q tuning elements in an RF Voltage Controlled Oscillator (VCO), voltage-controlled phase shifter, or tunable bandpass filter.

The minimum capacitance ratio from 2 V to 10 V is 2.2 makes the SMV2025 series suitable for wide bandwidth VCOs and wide phase range phase shifters.

The SMV2025 is manufactured in a surface mount, industry-standard SC-79 package and an ultra-small SOD-882 package that offer very low parasitic inductance and capacitance.


    • Low series resistance and leakage current for low phase noise VCOs
    • High capacitance ratio: CT (2 V)/CT (10 V) = 2.2 minimum
    • Broad 18 V tuning range
    • Competitive cross to Toshiba 1SV280 varactor diode
    • SC-79 and ultra-small SOD-882 packages (MSL1, 260 °C per JEDEC J-STD-020)

Images & Diagrams


    • Package Type
    • SC-79, SOD-882
    • Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min.
    • 20
    • Ct Total Capacitance3 Vr=1 V (pF) Typ.
    • 5.88
    • Ct Total Capacitance3 Vr=4 V (pF) Typ.
    • 3.44
    • Ct Total Capacitance3 Vr=8 V (pF) Typ.
    • 2.24
    • Ct Total Capacitance3 Vr=12 V (pF) Typ.
    • 1.5
    • Ct Total Capacitance3 Vr=20 V (pF) Typ.
    • 1.15
    • Total Capacitance Ratio Min.1
    • 3.0
    • Capacitance Ratio Range (V)
    • 4 to 20
    • Rs Series Resistance Max2 (Ω)
    • 1.0

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