Hyperabrupt Junction Tuning Varactor
SMV1245-011
Features
s
High Tuning Ratio
s
Low Series Resistance
s
SOD-323 Package
s
Designed for High Volume, Low Cost
Applications
s
Available in Tape and Reel Packaging
Description
The SMV1245-011 is a surface mount varactor diode in the
SOD-323 plastic package. It is designed for very low series
resistance applications such as RF and microwave
VCOs.
Absolute Maximum Ratings
Characteristic
Forward Current (I
F
)
Power Dissipation (P
D
)
Storage Temperature (T
ST
)
Operating Temperature (T
OP
)
Value
20 mA
250 mW
-55°C to +150°C
-55°C to +125°C
Electrical Specifications at 25°C
Parameter
Breakdown Voltage (V
BR
)
Reverse Current (I
R
)
Capacitance (C
T
)
Capacitance Ratio (C
TR
)
Capacitance Ratio (C
TR
)
Series Resistance (R
S
)
I
R
= 10
µA
V
R
= 10 V
C
T
@ 1 V, V
R
= 1 V, F = 1 MHz
C
T
(1 V)/C
T
(3 V)
C
T
(1 V)/C
T
(9 V)
V
R
= 1 V, F = 500 MHz
4.40
1.47
3.50
Condition
Frequency
Min.
26.00
50.00
5.40
1.76
4.20
2.00
Ω
Typ.
Max.
Unit
V
nA
pF
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 5/99A
1
Hyperabrupt Junction Tuning Varactor
SMV1245-011
Typical Performance Data
10
Capacitance vs. Voltage
V
R
(V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
C
T
(pF)
7.37
5.84
4.93
4.28
3.79
3.40
3.06
2.76
2.51
2.28
2.09
1.92
1.78
1.66
1.55
1.46
1.38
1.32
1.26
1.20
1.16
1.12
1.08
1.05
1.02
Capacitance (pF)
1
4.0
0
1
2
3
4
5
6
7
8
9 10 11 12
4.5
5.0
5.5
6.0
Varactor Voltage (V)
Capacitance vs. Voltage
SOD-323
0.090 (2.30 mm) MIN.
0.108 (2.70 mm) MAX.
0.010
(0.25 mm) MIN.
0.016
(0.40 mm) MAX.
0.063 (1.60 mm) MIN.
0.071 (1.80 mm) MAX.
6.5
7.0
7.5
8.0
8.5
9.0
9.5
CATHODE
INDICATOR
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
1
2
10.0
10.5
11.0
0.008 (0.20 mm) NOM.
0.006
(0.15 mm) TYP.
0.050
(1.25 mm) MAX.
11.5
12.0
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
2
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 5/99A
