Hyperabrupt Junction Tuning Varactor
SMV1705-079
Typical Performance Data
35.0
30.0
Capacitance vs. Voltage
V
R
(V)
0.0
0.5
C
T
(pF)
31.5
23.5
18.3
14.3
11.9
9.7
8.3
7.1
6.1
5.5
5.2
Capacitance (pF)
25.0
20.0
15.0
10.0
5.0
0
0
1.0
2.0
3.0
4.0
5.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Varactor Voltage (V)
Capacitance vs. Voltage
5
SPICE Model
V
VAR
= 1 V
V
VAR
= 2.5 V
V
VAR
= 4 V
IND
L
S
L = L
S
PORT
P_anode
port = 1
DIODEM
Diode_Model
I
S
= 1.00e-14
R
S
= 0
N=1
T
T
= 0
C
JO
= C
JO
M=M
V
J
E
G
= 1.11
X
TI
= 3
K
F
=0
A
F
=1
F
C
= 0.5
B
V
= 0
I
BV
= 1e-3
I
SR
= 0
N
R
= 2
I
KF
= 0
N
BV
= 1
I
BVL
= 0
N
BVL
= 1
T
BV1
= 0
T
NOM
= 27
F
FE
= 1
Percent of Variation (%)
4
3
2
1
0
-1
-2
-3
-4
-40
-20
0
20
40
RES
R
S
R = R
S
60
80
Temperature (˚C)
Relative Capacitance
Change vs. Temperature
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
CAP
C
P
C = C
P
SC-79
CATHODE 0.006 (0.15 mm) MIN.
INDICATOR
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
1
2
PORT
P_Cathode
port = 2
Part
Number
SMV1705-079
C
JO
(pF)
31
V
J
(V)
3
M
2
C
P
(pF)
0.5
R
S
Ω
(Ω
)
0.32
L
S
(nH)
0.8
0.028
(0.70 mm) MIN.
0.035
(0.90 mm) MAX.
0.060 (1.50 mm) MIN.
0.067 (1.70 mm) MAX.
0.043 (1.10 mm) MIN.
0.051 (1.30 mm) MAX.
0.020
(0.50 mm) MIN.
0.028
(0.70 mm) MAX.
10˚ MAX.
10˚ MAX.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
2
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 1/01A