Hyperabrupt Junction Tuning Varactor
SMV1269-074
Typical Performance Data
Capacitance vs. Voltage
30
25
20
15
10
5
0
0
1
2
3
4
5
Voltage (V)
Alpha Varactor (SMV1269-074)
5
4
VVAR = 1 V
3
2
VVAR = 2.5 V
1
0
VVAR = 4 V
-1
-2
-3
-4
-40 -20 0
20 40 60 80
Temperature (˚C)
Relative Capacitance
Change vs. Temperature
SC-70
0.071 (1.80 mm) MIN.
0.087 (2.20 mm) MAX.
0.010 (0.25 mm) MIN.
0.016 (0.40 mm) MAX.
3
0.071 (1.80 mm) MIN.
0.094 (2.40 mm) MAX.
1
0.014 (0.35 mm) REF.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
2
0.026 (0.65 mm) REF.
0.051 (1.30 mm) REF.
0.004 (0.10 mm) MIN.
0.007 (0.18 mm) MAX.
0.031 (0.80 mm) MIN.
0.039 (1.00 mm) MAX.
0.004 (0.10 mm) MIN.
0.012 (0.30 mm) MAX.
0.000 (0.00 mm) MIN.
0.004 (0.10 mm) MAX.
VR (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
SPICE Model
IND
LS
L = LS
RES
RS
R = RS
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
Part
Number
CJO
VJ
(pF) (V)
SMV1269-074 28.5 6.3
CT (pF)
29.0
25.3
22.4
20.1
18.0
16.2
14.6
13.2
11.9
10.7
9.6
8.7
7.8
7.0
6.3
5.7
5.2
4.8
4.4
4.1
3.9
3.7
3.5
3.3
3.2
3.1
PORT
P_anode
port = 1
CAP
CP
C = CP
PORT
P_Cathode
port = 2
M
CP
(pF)
4.2
0.5
DIODEM
Diode_Model
IS = 1.00e-14
RS = 0
N=1
TT = 0
CJO = CJO
M=M
VJ
EG = 1.11
XTI = 3
KF =0
AF =1
FC = 0.5
BV = 0
IBV = 1e-3
ISR = 0
NR = 2
IKF = 0
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
RS
LS
(Ω) (nH)
0.6 1.4
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