Surface Mount Low Power Step Recovery Diodes
Rev. V3
MA144769-287 & MAVR-044769-1279
1
1
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004037
1
Features
Surface Mount Packages (SOT-23,SC-79)
Low Transition Times
SPC Process for Superior C-V Repeatability
Tape and Reel Packaging
Designed for Commercial Wireless Applications
RoHS Compliant
Description
The MA144769-287 and the MAVR-044769-1279
step recovery diodes are designed for use in low
power multipliers with output frequencies of up to
5 GHz. These step recovery diodes generate
harmonics by storing a charge as the diode is driven
to forward conductance by the positive voltage of the
input signal. When the signal reverses polarity, this
charge is extracted. These diodes will appear as a
low impedance current source until all the charge is
extracted, then it will “snap” to a higher impedance.
This causes a voltage pulse to form in the impulse
circuit of the multiplier. Step recovery diodes make
excellent high order multipliers such as comb
generators. They are also useful as efficient
moderate power x2 - x4 multipliers.
These step recovery diodes are useful for surface
mount low power applications.
RoHS Compliant
Part Numbers1
Total Capacitance
@ 1 MHz, 6 V
Reverse Voltage
@ 10 µA
Nominal
Carrier
Lifetime
Transition
Time
Nominal
Input
Frequency
Nominal
Output
Frequency
(pF) (V) (ns) (ps)
(GHz)
Min. Max. Min. Typical Max.
MA144769-287T
MAVR-044769-12790T 0.8 1.2 30 20 - 50 150 0.1 - 1.0 1 - 5
1. The prefix defines package style, configuration and packaging information. Contact representative for complete part identification.
Electrical Specifications
SOT-23 (Case Style 287)
SC-79 (Case Style 1279)
Surface Mount Low Power Step Recovery Diodes
Rev. V3
MA144769-287 & MAVR-044769-1279
2
2
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004037
2
Mounting Information
The illustration indicates the recommended mounting pad configuration for the SOT-23 and SC-79 packages.
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 +260°C.
Please refer to Application Note M538 for surface mounting instructions.
SC-79
0.020
0.50
0.053
1.35
inches
mm
Dimenstions:
0.020
0.50
0.75
1.9
.037
0.95
.035
0.90
.090
2.2
.030
0.80
inches
mm
min.
min.
SOT-23
Absolute Maximum Ratings2,3
@ TA = +25°C (Unless Otherwise Noted)
2. Operation of this device above any one of these parameters
may cause permanent damage.
3. Please refer to application note M538 for surface mounting
instructions.
Parameter Absolute Maximum
Operating Temperature -65°C to +125°C
Storage Temperature -65°C to +125°C
Reverse Voltage 30 V
Forward Bias Current 50 mA
Power Dissipation 250 mW
Capacitance vs. Bias, @ 1 MHz
0
1
2
3
4
5
0 5 10 15 20 25 30
Capacitance (pF)
Bias (V)
Surface Mount Low Power Step Recovery Diodes
Rev. V3
MA144769-287 & MAVR-044769-1279
3
3
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004037
3
Case Styles
F
D
H
J
A
G
L
C
E
B
K
N
M
Dim. Inches Millimeters
Min. Max. Min. Max.
A 0.048 1.22
B 0.008 0.20
C 0.040 1.00
D 0.013 0.020 0.35 0.50
E 0.003 0.006 0.08 0.15
F 0.110 0.119 2.80 3.00
G 0.047 0.056 1.20 1.40
H 0.037 typical 0.95 typical
J 0.075 typical 1.90 typical
K 0.103 2.60
L 0.024 0.60
Dim. Gradient
M 10° max.
N 2° . . .30°
SOT-23 (Case Style 287)
SC-79 (Case Style 1279)
SOT-23 (Case Style 287)
SC-79 (Case Style 1279)
Inches Millimeters
Dim. Min. Max. Min. Max.
A 0.0197 0.0276 0.50 0.70
B 0.003 0.008 0.07 0.20
C 0.006 0.010 0.15 0.25
D 0.010 0.014 0.25 0.35
E 0.059 0.067 1.50 1.70
F 0.043 0.051 1.09 1.30
G 0.0098 nominal 0.250 nominal
H 0.0433 nominal 1.10 nominal
I 0.027 0.035 0.68 0.89
Surface Mount Low Power Step Recovery Diodes
Rev. V3
MA144769-287 & MAVR-044769-1279
4
4
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0004037
4
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