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 1T399
Variable Capacitance Diode
Description The 1T399 is a variable capacitance diode designed for the electronic tuning of wide-band CATV tuners, and it has a super miniature package. Features * Super miniature package * Small series resistance 0.75 Max. (f=470 MHz) * Large capacitance ratio 11.7 Typ. (C2/C25) 18.0 Typ. (C1/C28) * Small leak current 10 nA Max. (VR=28 V) * Capacitance deviation in a matching group: within 2 % Applications Electronic tuning of wide-band CATV tuners Structure Silicon epitaxial planar-type diode M-235
Absolute Maximum Ratings (Ta=25 C) * Reverse voltage VR 34 * Operating temperature Topr -20 to +75 * Storage temperature Tstg -65 to +150
V C C
Electrical Characteristics Item Reverse current Diode capacitance Capacitance ratio Series resistance Capacitance deviation in a matching group Symbol IR C2 C25 C2/C25 C25/C28 rs C Conditions VR=28 V VR=2 V, f=1 MHz VR=25 V, f=1 MHz Min. 29.50 2.53 11.0 1.03 Typ. Max. 10 35.50 2.93
(Ta=25 C) Unit nA pF pF
11.7 0.75 2 %
CD=14 pF, f=470 MHz VR=2 to 25 V, f=1 MHz
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E97454A82-TE
1T399
Example of Representative Characteristics
Diode capacitance vs. Reverse voltage 100 Ta = 25C 50
Reverse current vs. Ambient temperature VR = 28V
C - Diode capacitance (pF)
20 10 5
100
2 1 1 2 5 10 20 50 VR - Reverse voltage (V)
IR - Reverse current (pA)
10
1 -20
0
20
40
60
80
Ta - Ambient temperature [C]
Forward voltage vs. Ambient temperature 0.80 IF = 1mA 50
Reverse voltage vs. Ambient temperature IR = 10A
VR - Reverse voltage (V)
0 20 40 60 80
VF - Forward voltage (V)
0.70
45
0.60
40
0.50 -20
35 -20
0
20
40
60
80
Ta - Ambient temperature (C)
Ta - Ambient temperature (C)
--2--
1T399
Diode capacitance vs. Ambient temperature 1.03 VR = 1V VR = 2V
C (Ta)/C (25C) - Diode capacitance
1.02
1.01
VR = 7V VR = 15V VR = 25V
1.00
0.99
0.98 -20
0
20
40
60
80
Ta - Ambient temperature (C)
Reverse current vs. Reverse voltage 100 Ta = 80C Ta = 60C 1000
Temperature coefficient of diode capacitance
Temperature coefficient (ppm/C)
500
Ta = 25C
IR - Reverse current (pA)
10
200
100
50 1 1 2 5 10 20 50 VR - Reverse voltage (V)
0.1 1 3 10 30 VR - Reverse voltage (V)
--3--
1T399
Package Outline
Unit : mm
M-235
+ 0.2 1.25 - 0.1 + 0.1 0.3 - 0.05 0.2
0.9 0.1
2
1.7 0.1
1 + 0.1 0.3 - 0.05
2.5 0.2
0 0.05 + 0.1 0.11 - 0.06
0 to 10
NOTE: Dimension "" does not include mold protrusion.
SONY CODE EIAJ CODE JEDEC CODE
M-235
PACKAGE WEIGHT
0.1g
Marking
CATHODE MARK
2
99 B
Notes 1) B:Lot No.(Year and Month of manufacture) Year;Last one digit Month;A,B,C(for Oct. to Dec.) 1 to 9(for Jan.to Sept.)
1
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