SURFACE MOUNT TUNING VARACTORS SERIES
FEATURES
• High-Q
• Low leakage
• Rugged construction
• Passivated
• Repeatable performance
3
Package Terminal Identification Code
3
3
3
1
2
SOT23
SINGLE DIODE (-0)
3
1
2
SOT23
SERIES DIODES (-2)
3
1
2
SOT23
COMMON CATHODE (-4)
2
1
2
SOT23
DUAL ANODE (-5)
3
APPLICATIONS
• Tuning oscillators, filters and resonators
• Voltage controlled capacitor
1
2
SOT23
SINGLE DIODE (-1)
2
SOT23
COMMON ANODE (-3)
1
1
SOD323
1
2
SOT23
DUAL CATHODE (-6)
SILICON VARACTOR DESCRIPTION
The SMTV and SMTD series of Metelics silicon varactor
diodes are constructed using advanced material
and processes, resulting in a lower series resistance
(R
s
) than is produced with conventional methods.
This lower R
s
results in a higher Q. These diodes are
suitable for applications where the most Q for the dol-
lar is required, since they are competitive with the lower
end of GaAs diodes for Q, while priced as silicon.
SOT23 PACKAGE TUNING VARACTORS ELECTRICAL SPECIFICATIONS VB @ 10 uA=30 V MIN
Part
Number
Package
Mark
CT-4
Typ.
(pF)
CTR
Min.
0/30
Q@4V
Min.
Recommended
Frequency
(MHz)
SMTV3001
SMTV3002
SMTV3004
SMTV3006
SMTV3008
SMTV3010
M01
M02
M04
M06
M08
M10
1.00
2.00
4.00
6.00
8.00
10.00
3.5
3.6
4.2
4.3
4.3
4.4
3000
2800
2400
2100
1800
1600
3000
2500
2500
2500
2000
2000
Capacitance values are
±20%.
Other values available.
SOD323 PACKAGE TUNING VARACTORS ELECTRICAL SPECIFICATIONS VB @ 10 uA=30 V MIN
Part
Number
Package
Mark
CT-4
Typ.
(pF)
CTR
Min.
0/30
Q@4V
Min.
Recommended
Frequency
(MHz)
SMTD3001
SMTD3002
SMTD3004
SMTD3006
SMTD3008
SMTD3010
Cathode Band Only
Cathode Band Only
Cathode Band Only
Cathode Band Only
Cathode Band Only
Cathode Band Only
1.00
2.00
4.00
6.00
8.00
10.00
3.5
3.6
4.2
4.3
4.3
4.4
3000
2800
2400
2100
1800
1600
3000
2500
2500
2500
2000
2000
Capacitance values are
±20%.
Other values available.
975 Stewart Drive • Sunnyvale, CA 94O86 • 4O8.737.8181 • FAX: 4O8.733.7645 • www.metelics.com •
sales@metelics.com
MAXIMUM RATINGS
Operating/Storage Temperature Range ... -65°C to +150°C
Max Power Dissipation (per Package) ...................... 250mW
Measured in an infinite heat sink at T
CASE
=25°C).
Derate linearly to zero at 150°C.
Peak inverse Voltage (P
IV
) ................................... Same as V
BR
Forward Current (i
F
) (1
µ
s pulse) .................................... 1 Amp
PACKAGE CHARACTERISTICS
Lead Material .............................................................. Alloy 42
Lead Finish .................................................... Tin-Lead, 60-40%
Maximum Soldering Temperature ................ 260°C for 5 sec.
Minimum Lead Strength ................................... 2 pounds pull
Typical Package Inductance .......................................... 2 nH
Typical Package Capacitance .... 0.10 pF (opposite leads)
SOT23 PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
E35SM PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
SOT143 PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
A
A
1
C
E
F
G
H
I
J
K
Ø
0.79
0.02
2.67
1.80
0.38
2.10
1.20
0.13
0.089
0.44
0.0
1.02
0.10
3.05
2.00
0.54
2.50
1.40
0.25
0.15
0.55
8.0
0.031
0.001
0.105
0.071
0.010
0.083
0.047
0.005
0.0035
0.017
0.0
0.040
0.004
0.120
0.079
0.021
0.098
0.055
0.010
0.059
0.022
0.0
A
B
C
D
E
F
G
H
I
J
0.53
0.20
0.08
0.30
0.56
3.76
1.19
0.33
2.77
0.05
0.76
0.36
0.13
0.46
0.71
4.01
1.35
0.43
2.92
0.15
0.021
0.008
0.003
0.012
0.022
0.148
0.047
0.013
0.109
0.002
0.030
0.014
0.05
0.018
0.028
0.158
0.053
0.017
0.115
0.006
A
A
1
B
C
D
E
F
G
H
I
J
Ø
0.79
0.02
2.67
1.78
1.80
0.77
0.38
2.10
1.20
0.13
0.89
0.0
1.02
0.10
3.05
2.03
2.00
0.94
0.54
2.50
1.40
0.25
0.15
8.0
0.031
0.001
0.105
0.070
0.071
0.030
0.015
0.083
0.047
0.005
0.0035
0.0
D
0.040
0.004
0.120
0.080
0.079
0.037
0.021
0.098
0.065
0.010
0.0059
0.8
F
I
H
H
H G
F
G
E
B
J
F
K
I
J
A
A
1
Ø
E
D
J
E
C
A
1
C
B
A
A
C
Ø
I
G
SOD323 PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
0805 PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
E28X PACKAGE OUTLINE
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
A
B
C
D
E
F
G
H
—
—
—
0.25
0.08
1.60
1.15
2.30
1.10
0.10
0.20
0.40
0.15
1.90
1.45
2.70
H
0.034
0.003
0.006
0.010
0.003
0.063
0.045
0.094
0.043
0.004
0.010
0.016
0.006
0.075
0.057
0.106
A
B
C
D
E
F
1.14
1.40
1.91
2.16
0.63
0.84
0.38
0.63
0.30
0.40
0.76 1.06
B
0.045
0.075
0.025
0.015
0.012
0.030
0.055
0.085
0.033
0.025
0.016
0.040
A
B
C
D
E
F
G
H
I
0.63
0.20
0.10
0.50
0.25
4.11
2.16
1.02
0.38
0.76
0.38
0.20
0.76
0.50
4.52
2.41
1.27
0.63
F
0.025
0.008
0.004
0.020
0.010
0.162
0.085
0.040
0.015
0.030
0.015
0.008
0.030
0.020
0.178
0.095
0.050
0.025
A
D
G
H
I
G
F
C
C
E
B
A
C
A
B
E
D
D
