Hyperabrupt Junction Tuning Varactors
SMV1211–SMV1215
Features
s
High Capacitance Ratio, C
1 V
/C
4 V
= 5 Typ.
s
Multiple Packages SOT-23, SOD-323,
SC-70 and SC-79
s
Designed for High Volume Commercial
Applications
s
SPICE Models are Available
Description
The SMV1211–SMV1215 series of silicon hyperabrupt
junction varactor diodes are designed for use in VCOs with
low tuning voltage operation. This family of varactors is
characterized for capacitance and resistance over
temperature. SPICE models are provided.
Absolute Maximum Ratings
Characteristic
Reverse Voltage (V
R
)
Forward Current (I
F
)
Power Dissipation (P
D
)
Storage Temperature (T
ST
)
Operating Temperature (T
OP
)
Value
12 V
20 mA
250 mW
-55°C to +150°C
-55°C to +125°C
Single
SC-79
o
SMV1212-079
o
SMV1213-079
Single
SOD-323
Single
SOT-23
o
SMV1211-001
o
SMV1212-001
Common Cathode
SOT-23
o
SMV1212-004
o
SMV1213-004
Common Cathode
SC-70
o
SMV1212-074
o
SMV1213-074
o
SMV1213-011
o
SMV1215-011
o
SMV1213-001
o
SMV1214-001
o
SMV1215-001
L
S
= 1.5 nH
L
S
= 0.7 nH
L
S
= 1.5 nH
L
S
= 1.4 nH
L
S
= 1.4 nH
o
Available through distribution.
For other packages or configurations, please contact the factory.
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
1
Hyperabrupt Junction Tuning Varactors
SMV1211–SMV1215
Electrical Specifications at 25°C
Part
Number
SMV1211
SMV1212
SMV1213
SMV1214
SMV1215
C
T
@ 1 V
(pF)
Min.
95.0
42.0
17.0
14.5
8.7
Typ.
100.0
50.0
22.0
16.0
9.5
C
T
@ 2.5 V
(pF)
Min.
40.0
18.0
8.5
6.5
4.3
Max.
65.0
27.0
10.5
7.8
5.5
C
T
@ 4 V
(pF)
Typ.
20
9
4
3
2
Max.
25.0
12.0
5.5
4.8
2.9
C
T
@ 1 V
C
T
@ 2.5 V
(Ratio)
Typ.
2
2
2
2
2
C
T
@ 1 V
C
T
@ 4 V
(Ratio)
Typ.
5
5
5
5
5
R
S
@ 4 V
500 MHz
Ω
(Ω)
Typ.
0.4
0.8
1.4
1.7
2.8
Q
@ 4V
50 MHz
Min.
80
150
200
300
350
Reverse Voltage V
R
(I
R
= 10
µA):
12 V
Reverse Current I
R
(V
R
= 8 V): 20 nA
Typical Performance Data
1000.0
SMV1211
4
Capacitance (pF)
SMV1212
100.0
SMV1213
SMV1214
SMV1215
10.0
3
SMV1215
R
S
(Ω)
2
SMV1214
SMV1213
SMV1212
1
1.0
0
2.0
4.0
6.0
8.0
0
0
SMV1211
1
2
3
4
5
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Reverse Voltage
@ 500 MHz
15
3
Percentage Change (%)
Percentage Change (%)
60
80
2
1
0
-1
-2
-3
-40
V
R
= 1 V
10
5
0
-5
-10
-15
V
R
= 4 V
-20
0
20
40
-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. 1/01A
Hyperabrupt Junction Tuning Varactors
SMV1211–SMV1215
Typical Capacitance Values
SMV1211
V
R
(V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
C
T
(pF)
162.6
122.3
98.6
80.4
64.2
48.2
34.1
24.7
19.4
16.4
14.6
13.3
12.4
11.7
11.2
10.8
10.5
SMV1212 SMV1213
C
T
(pF)
72.4
55.3
44.9
36.9
29.9
22.9
16.3
11.8
9.3
7.9
7.0
6.4
6.0
5.7
5.5
5.3
5.1
C
T
(pF)
30.0
22.8
18.1
15.3
12.3
9.2
6.4
4.5
3.5
3.0
2.6
2.4
2.2
2.1
2.0
1.9
1.9
SMV1214 SMV1215
C
T
(pF)
26.0
19.6
15.6
12.4
9.6
6.8
4.7
3.5
2.9
2.5
2.3
2.1
2.0
1.9
1.8
1.8
1.7
C
T
(pF)
14.8
11.3
9.1
7.5
6.0
4.5
3.1
2.3
1.9
1.7
1.5
1.4
1.3
1.3
1.2
1.2
1.2
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
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
RES
R
S
R = R
S
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
CAP
C
P
C = C
P
PORT
P_Cathode
port = 2
Part
Number
SMV1211
SMV1212
SMV1213
SMV1214
SMV1215
C
JO
(pF)
168.00
72.47
28.90
22.74
14.36
V
J
(V)
500
110
190
190
190
M
54
67
105
106
115
C
P
(pF)
0.0
4.5
2.2
1.5
1.1
R
S
Ω
(Ω)
0.4
0.8
1.4
1.7
2.8
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.
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
3
Hyperabrupt Junction Tuning Varactors
SMV1211–SMV1215
SOT-23
0.110 (2.80 mm) MIN.
0.120 (3.04 mm) MAX.
3
SC-70
0.012 (0.30 mm) MIN.
0.020 (0.50 mm) MAX.
0.047 (1.20 mm) MIN.
0.055 (1.40 mm) MAX.
1
2
0.071 (1.80 mm) MIN.
0.087 (2.20 mm) MAX.
0.010 (0.25 mm) MIN.
0.016 (0.40 mm) MAX.
0.071 (1.80 mm) MIN.
0.094 (2.40 mm) MAX.
0.083 (2.10 mm) MIN.
0.104 (2.64 mm) MAX.
3
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
0.037 (0.95 mm) REF.
0.020 (0.51 mm) REF.
0.076 (1.92 mm) REF.
1
0.014 (0.35 mm) REF.
2
0.026 (0.65 mm) REF.
0.051 (1.30 mm) REF.
0.003 (0.080 mm) MIN.
0.008 (0.20 mm) MAX.
8˚ MAX.
0.035 (0.89 mm) MIN.
0.044 (1.12 mm) MAX.
0.004 (0.10 mm) MIN.
0.007 (0.18 mm) MAX.
0.031 (0.80 mm) MIN.
0.039 (1.00 mm) MAX.
0.022 (0.55 mm) REF.
0.0005 (0.01 mm) MIN.
0.004 (0.10 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.
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.
SC-79
CATHODE 0.006 (0.15 mm) MIN.
INDICATOR
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
1
2
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
1
2
0.028
(0.70 mm) MIN.
0.035
(0.90 mm) MAX.
CATHODE
INDICATOR
0.060 (1.50 mm) MIN.
0.067 (1.70 mm) MAX.
0.043 (1.10 mm) MIN.
0.051 (1.30 mm) MAX.
0.008 (0.20 mm) NOM.
0.006
(0.15 mm) TYP.
0.050
(1.25 mm) MAX.
10˚ MAX.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
10˚ MAX.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
0.020
(0.50 mm) MIN.
0.028
(0.70 mm) MAX.
4
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
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