SMV1249 Series

Hyperabrupt Junction Tuning Varactor


The SMV1247-SMV1255 group of silicon hyperabrupt junction varactor diodes is designed for use in Voltage Controlled Oscillators (VCOs) with a low tuning voltage operation. This group of varactors is characterized for capacitance and resistance over temperature.

SMV1249 Series includes SMV1249-079LF, SMV1249-011LF and SMV1249-040LF.

Specifications

Package Type SC-70, SC-79, SOD-323, SOT-23
Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min.15
Ct Total Capacitance3 Vr=1 V (pF) Typ.18.18
Ct Total Capacitance3 Vr=4 V (pF) Typ.2.72
Ct Total Capacitance3 Vr=8 V (pF) Typ.2.03
Ct Total Capacitance3 Vr=12 V (pF) Typ.
Ct Total Capacitance3 Vr=20 V (pF) Typ.
Total Capacitance Ratio Min.111
Capacitance Ratio Range (V)0.3 to 4.7
Rs Series Resistance Max2 (Ω)2.2

Features

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

Product Documents