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Varactors


Varactor Diodes for Radio Tuning
NTE Type
Number		 Material Forward Voltage Drop (Volts) Maximum Ratings
Forward
DC Current
(mA)		 Surge Current
for 10msec
(Amps)		 Reverse Characteristics
@ 100V
(mA)
VF IF IFSM IR
Min Typ Max @ IF mA
607 Silicon 2.10
2.70		 2.35
3.00		 2.60
3.30		 1
70		 100 25 10
Tstg: -40°C to +130°C, Top: -25°C to +70°C
 
(TEMPERATURE COMPENSATING DIODES)
NTE Type
Number		 Application Reverse
Breakdown
Voltage
(Volts)		 Maximum
Forward
Current
(mA)		 Power
Dissipation
(mW)		 Minimum
Figure of
Merit		 Minimum Diode
Capacitance
(pF)		 Capacitance
Ratio
V(BR) IF PD Q CT CR
618 AM Tuning 18 50 280 150 @ 1V 440 @ 1V 15
 
Voltage Variable Capacitance Diodes
(Tuning Diodes)
NTE Type
Number		 Nominal Diode
Capacitance @
VR = 4V, f = 1MHz
(pF)		 Typical Tuning
ratio C2 / C30
@ f = 1MHz
(Volts)		 Maximum
Reverse
Breakdown
Voltage
(Volts)		 Maximum
Forward
Current
(mA)		 Maximum
Power
Dissipation
(Watts)		 Minimum
Figure of Merit @
VR = 4Vdc, f = 50MHz
CT TR V(BR) IF PD Q
610 6.8 2.7 30 200 280 450
611 10 2.9 30 200 280 400
612 12 2.9 30 200 280 400
613 22 2.9 30 200 280 350
614 33 3.0 30 200 280 200




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