SMV1493 Ceramic Package Buy Now
Abrupt Junction Varactor Diode Ceramic Package

The SMV1493 and SMV1494 bare die and hermetic packaged silicon abrupt junction varactor diodes are designed for use in VCOs requiring tight capacitance tolerances. The low resistance of these varactors makes them appropriate for high Q resonators in wireless system VCOs from RF to beyond 56 GHz.


  • High frequency to beyond 56 GHz
  • Low series resistance for low phase noise
  • Multiple chip and hermetic packages
  • Lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per JEDEC J-STD-020
  • SPICE models are provided
Data Sheets SMV1493, SMV1494: Silicon Abrupt Junction Tuning Varactors Packaged and Bondable Mesa Chips SMV1493_SMV1494_203255C.pdf (352 KB)
Application Notes Quality/Reliability 200149C.pdf (300 KB)
Application Notes ESD Compliance Testing and Recommended Protection Circuits for GaAs Devices 200818B.pdf (114 KB)
Application Notes Varactor Diodes 200824A.pdf (112 KB)
Application Notes Diode Chips, Beam-Lead Diodes, Capacitors: Bonding Methods and Packaging Bond_Methods_and_Pkg_App_Note_200532B.pdf (358 KB)
ProductName : SMV1493 Ceramic Package
Package Designations (mils) : -203, 210, 219, 240
Vr Reverse Breakdown Voltage Ir = 10 µA (V) Min. : 12
Ct Total Capacitance1 Vr=1 V (pF) Typ. : 19
Ct Total Capacitance1 Vr=4 V (pF) Typ. : 11.2
Ct Total Capacitance1 Vr=10 V (pF) Typ. : 7.1
Ct Total Capacitance1 Vr=30 V (pF) Typ. :
Total Capacitance Ratio Ct=0 V / Ct=30 V Min. :
Rs Series Resistance 500 MHz (Ω) Max. : 0.5
Q Vr=4 V @ 50 MHz Min. :
Product Information:
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