Hyperabrupt Junction Tuning Varactor

The SMVA1248-079LF silicon hyperabrupt junction varactor diode is designed for use in voltage controlled oscillators (VCOs) with a low tuning voltage operation and is ideal for in-vehicle infotainment applications. This varactor is characterized for capacitance and resistance over temperature.


    • AEC-Q101 qualified
    • High capacitance ratio: C0.3V/C4.7V = 12 typical
    • Packages rated MSL1, 260 °C per JEDEC J-STD-020

Images & Diagrams


    • Package Type
    • SC-79
    • Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min.
    • 15
    • Ct Total Capacitance3 Vr=1 V (pF) Typ.
    • 12.33
    • Ct Total Capacitance3 Vr=4 V (pF) Typ.
    • 1.71
    • Ct Total Capacitance3 Vr=8 V (pF) Typ.
    • 1.3
    • Ct Total Capacitance3 Vr=12 V (pF) Typ.
    • Ct Total Capacitance3 Vr=20 V (pF) Typ.
    • Total Capacitance Ratio Min.1
    • 10.8
    • Capacitance Ratio Range (V)
    • 0.3 to 4.7
    • Rs Series Resistance Max2 (Ω)
    • 3.3

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