Hyperabrupt Junction Tuning Varactors
SMV1129 and SMV1139
Typical Performance Data
30
25
Capacitance vs. Reverse Voltage
SMV1129
V
R
(V)
0
1
2
3
4
C
T
(pF)
27.5
18.9
15.0
12.5
10.7
9.3
8.1
7.1
6.3
5.7
5.2
4.9
4.7
SMV1139
C
T
(pF)
8.0
5.5
4.4
3.7
3.1
2.7
2.5
2.3
2.2
2.1
2.0
2.0
1.9
Capacitance (pF)
20
15
10
5
0
0
2
SMV1139
4
6
8
10
SMV1129
5
6
7
8
9
10
11
12
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
SPICE Model
PORT
P_anode
port = 1
IND
L
S
L = L
S
DIODEM
Diode_Model
I
S
= 1.00e-14
R
S
= 0
N=1
T
T
= 0
C
JO
= C
JO
M=M
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
SOD-323
0.090 (2.30 mm) MIN.
0.108 (2.74 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.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
1
2
RES
R
S
R = R
S
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
CAP
C
P
C = C
P
CATHODE
INDICATOR
0.008 (0.20 mm) NOM.
0.006
(0.15 mm) TYP.
0.050
(1.25 mm) MAX.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
PORT
P_Cathode
port = 2
SC-79
Part
Number
SMV1129
SMV1139
C
JO
(pF)
27.5
8.0
V
J
(V)
2.8
1.2
M
1.10
0.65
C
P
(pF)
0
0
R
S
Ω
(Ω)
0.40
0.60
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
CATHODE 0.006 (0.15 mm) MIN.
INDICATOR
1
2
1. Values extracted from measured performance.
2. For package inductance (L
S
) refer to package type.
3. For more details refer to the “Varactor SPICE Models for RF VCO
Applications” Application Note.
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. 10/99A
ALPHA [ ALPHA INDUSTRIES ]
