SMV1408 Series

Plastic Packaged Abrupt Junction Tuning Varactors


Please note: SMV1408-001LF is being discontinued and is not recommended for new designs. The suggested replacement is SMV1408-040LF.

SMV1408 Series includes SMV1408-001LF and SMV1408-040LF.

The SMV1405-SMV1430 group of silicon abrupt junction varactor diodes is designed for use in Voltage Controlled Oscillators (VCOs) requiring tight capacitance tolerances. The low resistance of these varactors makes them appropriate for high-Q resonators in wireless system VCOs to frequencies above 10 GHz. This family of varactors is characterized for capacitance over temperature.

Specifications

Package Type SOT-23
Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min.30
Ct Total Capacitance1 Vr=1 V (pF) Typ.2.94
Ct Total Capacitance1 Vr=4 V (pF) Typ.1.88
Ct Total Capacitance1 Vr=10 V (pF) Typ.1.28
Ct Total Capacitance1 Vr=30 V (pF) Typ.0.95
Total Capacitance Ratio Ct=0 V / Ct=30 V Min.4.1
Rs Series Resistance 500 MHz (Ω) Max.0.6
Q Vr=4 V @ 50 MHz Min.2900

Features

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

Product Documents