pro_details

SMV1235 Series

Hyperabrupt Junction Tuning Varactor

The SMV123x series of silicon hyperabrupt junction varactor diodes are designed for use in Voltage Controlled Oscillators (VCOs) with a low tuning voltage operation. The low resistance of these varactors makes them appropriate for high-Q resonators in wireless system VCOs to frequencies over 10 GHz. This family of varactors is characterized for capacitance and resistance over temperature.

SMV1235 Series includes SMV1235-079LF and SMV1235-040LF.

Please note: SMV1235-040LF is being discontinued and is not recommended for new designs. The suggested replacement is SMV1235-079LF.
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Features

    • High capacitance ratio
    • Low series resistance for low phase noise
    • Packages rated MSL1, 260 °C per JEDEC J-STD-020

Images & Diagrams

Specifications

    • Package Type
    • SC-70, SC-79, SOD-323, SOD-882, SOT-23
    • Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min.
    • 15
    • Ct Total Capacitance3 Vr=1 V (pF) Typ.
    • 11.67
    • Ct Total Capacitance3 Vr=4 V (pF) Typ.
    • 4.99
    • Ct Total Capacitance3 Vr=8 V (pF) Typ.
    • 2.91
    • Ct Total Capacitance3 Vr=12 V (pF) Typ.
    • 2.47
    • Ct Total Capacitance3 Vr=20 V (pF) Typ.
    • Total Capacitance Ratio Min.1
    • 1.6
    • Capacitance Ratio Range (V)
    • 1 to 3
    • Rs Series Resistance Max2 (Ω)
    • 0.6

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