Hyperabrupt Tuning Varactors
SMV1232–SMV1237
Electrical Specifications at 25°C
C
@ 3 V
(pF)
C
@ 6 V
(pF)
C
C
@ 1 V
@ 3 V
C
C
@ 1 V
@ 6 V
R @ 3 V
S
500 MHz
Q
T
T
T
T
Part
C
T
@ 1 V
@ 3 V
50 MHz
T
T
Number
(pF)
(Ratio)
(Ratio)
(Ω)
Min.
Max.
2.86
Typ.
1.5
Typ.
0.94
1.10
2.00
3.60
5.30
14.40
Min.
1.5
1.5
1.6
1.6
1.6
1.6
Max.
1.9
1.9
2.0
2.0
2.0
2.0
Min.
2.6
2.6
2.8
2.9
3.0
3.0
Max.
3.3
3.3
3.4
3.4
3.5
3.5
Max.
1.50
1.20
0.80
0.60
0.50
0.25
Typ.
1400
1200
1000
750
SMV1232
SMV1233
SMV1234
SMV1235
SMV1236
SMV1237
2.34
3.00
3.60
1.8
5.85
7.15
3.6
10.35
15.50
45.00
12.65
18.50
54.00
6.4
9.2
700
26.9
500
Reverse Voltage VR (IR = 10 µA): 15 V
Reverse Current IR (VR = 12 V): 20 nA
Typical Performance Data
100.0
2
SMV1237
SMV1232
SMV1233
SMV1236
SMV1234
SMV1235
10.0
1
0
SMV1235
SMV1234
1.0
0.1
SMV1236
SMV1237
1
SMV1232
SMV1233
4.0
0
2.0
6.0
8.0
0
2
3
4
5
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Reverse Voltage
@ 500 MHz
5
10
8
4
3
6
2
4
VR = 1 V
1
2
0
0
-1
-2
-3
-4
-2
-4
-6
-8
VR = 3 V
20 40
-40
-20
0
60
80
-40
-20
0
20
40
60
80
Temperature (˚C)
Temperature (˚C)
Relative Capacitance Change
vs. Temperature
Relative Series Resistance Change
vs. Temperature @ 500 MHz
2
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 6/99A
ALPHA [ ALPHA INDUSTRIES ]
