Also Offering
RoHs Compliant
Equivalent Parts
Surface Mount
Hyperabrupt Varactors
Features
•
•
•
•
•
•
•
•
MA4ST400 Series
V1
Absolute Maximum Ratings @ T
A
=+25 °C
(Unless Otherwise Noted)
1
Parameter
Reverse Voltage
Forward Current
Total Power Dissipation
Operating Temperature
Storage Temperature
Absolute Maximum
22V
50 mA
250 mW
-55 °C to +125 °C
-55 °C to +125 °C
Surface Mount Packages
High Quality Factor
Capacitance Ratio to 9.5:1
Tape and Reel Packaging Available
SPC Monitored Ion Implantation for Excellent
C-V Repeatability
Singles and Common Cathode Pairs
Lead-Free (RoHS Compliant) Equivalents
Available with 260 °C Reflow Compatibility
Description
M/A-COM’s MA4ST400 series are ion-implanted,
hyperabrupt junction, silicon tuning varactors in
the SOT-23 surface mount package. These ther-
mal oxide passivated diodes feature high capaci-
tance ratio and quality factor. They are well suited
for octavebandwidth tuning in the HF to UHF fre-
quency bands. The standard capacitance toler-
ance is ± 10%, with tighter tolerances available.
Capacitance matching at one or more bias volt-
ages is also available.These diodes are offered
with standard Sn/Pb plating, as well as with 100%
matte Sn plating on our RoHS compliant devices.
1. Operation of this device above any one of these parameters
may cause permanent damage.
2. Please refer to application note M538 for surface mounting
instructions
RoHs Compliant Parts
Part Number
RoHs Compliant Base
Part Number
MAVR-000401-XXXXXX
MAVR-000402-XXXXXX
MAVR-000403-XXXXXX
MAVR-000404-XXXXXX
MAVR-000405-XXXXXX
MAVR-000406-XXXXXX
MAVR-000407-XXXXXX
MAVR-000408-XXXXXX
MAVR-000409-XXXXXX
MA4ST401
MA4ST402
MA4ST403
MA4ST404
MA4ST405
MA4ST406
MA4ST407
MA4ST408
MA4ST409
Applications
The MA4ST400 series tuning varactors are useful
for octave bandwidth tuning applications in the HF
through UHF ranges. Applications include VCOs
and voltage tuned filters in radios, cable TV tun-
ers and test instruments where low cost and ex-
cellent lot-to-lot repeatability are critical. Linear
tuning performance is available from 3 to 8 volts.
Configurations
1
Suffix refers to package style , configuration and packaging requirements.
Contact representative for complete part number information.
Common Cathode
Single
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Also Offering
RoHs Compliant
Equivalent Parts
Surface Mount
Hyperabrupt Varactors
Electrical Specifications @ T
A
= +25 °C
Breakdown Voltage @ I
R
= 10
μ
A, V
b
= 22 V Minimum
Reverse Leakage Current @ V
R
=20V, I
R
= 100 nA Maximum
MA4ST400 Series
V1
C
T2
RoHs Compliant
Part Number Base
1
(pF)
f=1 MHz, V
R
=4.0V
Min.
MAVR-000401-XXXXXX
MAVR-000402-XXXXXX
MAVR-000403-XXXXXX
MAVR-000404-XXXXXX
MAVR-000405-XXXXXX
MAVR-000406-XXXXXX
MAVR-000407-XXXXXX
MAVR-000408-XXXXXX
MAVR-000409-XXXXXX
9.0
10.8
13.5
16.2
19.8
24.3
29.7
35.1
42.3
Nom.
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
Max.
11.0
13.2
16.5
19.8
24.2
29.7
36.3
42.9
51.7
Capacitance
Ratio
CT2.0/CT20
Typ.
6
6.5
7
7
7.5
8
9
9.5
9.5
Q Factor
f=50 MHz,
Min.
250
250
250
175
175
150
150
150
150
Part Number
Base
MA4ST401
MA4ST402
MA4ST403
MA4ST404
MA4ST405
MA4ST406
MA4ST407
MA4ST408
MA4ST409
1
The suffix defines package style, configuration and packaging information. Contact representative for complete part identification.
Typical Performance Curves
TOTAL CAPACITANCE (pF) vs REVERSE VOLTAGE
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Also Offering
RoHs Compliant
Equivalent Parts
Surface Mount
Hyperabrupt Varactors
Case Styles
SOD-323
Case Style 1141
C
F
D
G
E
MA4ST400 Series
V1
INCHES
DIM.
A
B
C
D
E
F
G
H
MIN.
⎯
⎯
⎯
0.010
0.003
0.063
0.045
0.091
MAX.
0.043
0.004
0.008
0.016
0.006
0.075
0.057
0.106
MILLIMETERS
MIN.
⎯
⎯
⎯
0.25
0.08
1.6
1.15
2.3
MAX.
1.1
0.1
0.2
0.4
0.15
1.9
1.45
2.7
H
B
A
SOT-23
Case Style 287
F
D
A
N
SOT-23 (Case Style 287)
INCHES
DIM.
A
B
C
D
E
F
G
H
J
K
L
MILLIMETERS
MIN.
MAX.
1.22
⎯
0.20
⎯
1.00
⎯
0.35
0.50
0.08
0.15
2.80
3.00
1.20
1.40
0.95 typical
1.90 typical
2.60
⎯
0.60
⎯
MIN.
MAX.
M
G
B
K
L
H
J
C
E
0.048
⎯
0.008
⎯
0.040
⎯
0.013
0.020
0.003
0.006
0.110
0.119
0.047
0.056
0.037 typical
0.075 typical
0.103
⎯
0.024
⎯
DIM.
M
N
GRADIENT
10° max.
1
2° . . .30°
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Also Offering
RoHs Compliant
Equivalent Parts
Surface Mount
Hyperabrupt Varactors
Mounting Information
The illustration indicates the recommended
mounting
pad
configuration
for
the
SOT-23 and SOD-323 packages. Solder paste
containing flux should be screened onto the pads to
a thickness of 0.005- 0.007 inches. The plastic
package is placed in position, firmly adhering to the
solder paste.
Permanent attachment is performed by a reflow
soldering procedure during which the tab
temperature does not exceed +275
°C
and the body
temperature does not exceed +250
°C,
for standard
models and +260
°C
for the RoHS compliant
devices.
Please refer to Application Note M538 for surface
mounting instructions.
MA4ST400 Series
V1
SOD-323
0.030
0.80
0.030
0.80
0.030
0.80
.090
2.2
Dimenstions: inches
mm
SOT-23
.030 min.
0.80
.035 min.
0.90
.037
0.95
0.75
1.9
.090
2.2
Dimenstions: inches
mm
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
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