MA45448 [TE]
Surface Mount Abrupt Tuning Varactors; 表面贴装突然调谐变容二极管
| 型号： | MA45448 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Surface Mount Abrupt Tuning Varactors |
| 文件： | 总2页 (文件大小：72K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Surface Mount
Abrupt Tuning Varactors
MA45430 Series
V3.00
SOT-23
Features
●
Surface Mount Package
●
Low Cost
●
High Quality Factor
●
Tape and Reel Packaging Available
●
SPC Controlled Process for Superior C-V Repeatability
●
Available as Singles and Common Cathode Pairs
Description
The MA45430 series are abrupt junction silicon tuning
varactors in the SOT-23 surface mount package. These
thermal oxide passivated diodes feature high capacitance
ratio and quality factor. They are well suited for tuning in
the HF to UHF frequency bands. The standard capaci-
tance tolerance is ±10%, with tighter tolerances available.
Capacitance matching at one or more bias voltages is
also available.
Configurations
TOP VIEW
Applications
The MA45430 series tuning varactor is useful for tuning
applications in the HF through UHF ranges. Applications
include VCOs and voltage tuned filters in radios, cable
TV tuners and test instruments where low cost and excel-
lent lot-to-lot repeatability are critical.
Ordering Information
The part numbers shown are for single diodes. When
ordering diodes in common cathode pairs add suffix
“CK.” For example, MA45436CK specifies model number
MA45436 as a common cathode pair. To order parts on
tape and reel add suffix T/R to the end of the part num-
ber. i.e. MA45436CK - T/R.
(SINGLE)
(COMMON CATHODE PAIR)
Absolute Maximum Ratings at 25°C
Parameter
Absolute Maximum
Mounting Information
Reverse Voltage
30 V
The diagram below indicates the recommended mount-
ing pad configuration for the SOT-23 package. Solder
paste containing flux should be screened onto the pads
to a thickness of 0.005 inches. The SOT-23 device is
placed in position, firmly adhering to the solder paste.
Forward Current
50 mA
Total Power Dissipation1
Junction Operating Temperature
Storage Temperature
250 mW
-55°C to +150°C
-55°C to +150°C
Note:
1. At 25°C case temperature. Derate linearly to 0 mW at 150°C.
Permanent attachment is performed by a reflow soldering
procedure. The tab temperature must not exceed 275°C
and the body temperature must not exceed 250°C.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
1
North America: Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Surface Mount Abrupt Tuning Varactors
Electrical Specifications @ 25°C
MA45430 Series
V3.00
Typical Performance Curve
Minimum Breakdown Voltage (VB) = 30 Volts at 10µA
Maximum Reverse Current (IR) = 100 nA at 24 Volts
Lower capacitance values available upon request
CAPACITANCE vs REVERSE VOLTAGE
MA46H070–MA46H073
100
10
1
Total
Capacitance
CT4 ± 10%
(pF)
Minimum
Capacitance Ratio
CT0/CT30
Model
Number
Minimum
Q
MA45448
MA45446
MA45436
MA45437
MA45438
MA45439
MA45440
MA45441
MA45444*
MA45445*
MA45446*
MA45448*
4.7
5.6
4.5
4.5
4.5
4.5
4.5
4.6
4.6
4.7
4.7
4.7
1800
1700
1600
1500
1300
1200
1000
900
MA45444
6.8
MA45440
MA45438
8.2
MA45436
10.0
12.0
22.0
27.0
33.0
47.0
0.1
1
10
100
Reverse Voltage (Volts)
Capacitance vs. Reverse Voltage
750
400
Test
V
= 4 V
V
= 0/30 V
V = 4 V
R
R
R
Conditions
f = 1 MHz
f = 1 MHz
f = 50 MHz
* Available as single diodes only.
INCHES
MAX.
MILLIMETERS
DIM.
A
MIN.
—
MIN.
—
MAX.
1.22
0.20
1.00
0.50
0.15
3.00
1.40
Case Style
SOT-23 (High Profile)
0.048
0.008
0.040
0.020
0.006
0.119
0.056
B
—
—
C
D
E
—
—
0.013
0.003
0.110
0.047
0.35
0.08
2.80
1.20
F
G
H
J
0.037 typical
0.075 typical
0.103
0.024
0.95 typical
1.90 typical
2.60
K
L
0.60
DIM.
M
GRADIENT
10° max.1
2°…30
DIMENSIONS MILLIMETERS (INCHES)
N
º
Note:
1. Applicable on all sides
Specifications Subject to Change Without Notice.
2
M/A-COM, Inc.
North America: Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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