Cobham plc :: The most important thing we build is trust
Cobham plc
 
 
 

Silicon Hyperabrupt Tuning Varactors


VBR 20 V 
This series of silicon tuning varactors consists of hyperabrupt epitaxial devices. They incorporate a passivated mesa technology. Packaged or chip devices are available for linear electronic tuning from VHF up to Ku band. 
 
Characteristics Ta=+25°C
Reverse breakdown voltage, Vb = 10 μA: 20V min.
Reverse current, Ir 16V: 200nA
 
Temperature ranges
Operating junction (Tj):-55°C to +150°C
Storage: -65°C to +150°C

 

PACKAGED DIODES
 Figure of  MeritTotal capacitance Ct  Tuning  
  pF ratio  
Test conditionsF=50MHzF=1MHzF=1MHzF=1MHzF=1MHzCt1V / Ct12VCt1V / Ct20V
Vr=4VVr = 1V  Vr = 4V  Vr = 12V  Vr = 20V  F= 1MHz  F= 1MHz  
Type  Case (1)  typ.  typ.  ±20%  typ.  typ.  typ.  typ.  
DH76010 F27d  2200  2.5  1.2  0.6  0.5  4.1  4.9  
DH76015 F27d  2000  3.6  1.7  0.8  0.7  4.4  5.4  
DH76022 F27d  1700  5.2  2.4  1.1  0.9  4.7  5.8  
DH76033 F27d  1400  7.7  3.5  1.6  1.3  4.9  6.1  
DH76047 F27d  1000  11  4.9  2.2  1.7  5.0  6.4  
DH76068 F27d  700  16  6.9  3.0  2.4  5.1  6.5  
DH76100 F27d  400  23  10.2  4.5  3.5  5.2  6.7  
DH76150 F27d  140  34  15.2  6.6  5.1  5.2  6.8

 

(1) Custom cases available on request



  1. C2
  2. M208a
  3. M208b
  4. SOD323
  5. SOT23
  6. SOT143
  7. SOT323