1
Surface Mount Low Power Step Recovery Diodes
Rev. V1
MAVR-0447 Series
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product 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
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 MAVR-0447 series of Step Recovery diodes is
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. The Step
Recovery diode will appear as a low impedance cur-
rentsource 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 gen-
erators. They are also useful as efficient moderate
power X2-X4 multipliers.
Applications
The MAVR-0447 series step recovery are useful for
surface mount low power applications.
Absolute Maximum Ratings 1,2
@ TA=+25 °C (Unless Otherwise Noted)
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
Parameter Absolute Maximum
Operating Temperature -65 °C to +125 °C
Storage Temperature -65 °C to +125 °C
Reverse Voltage 30V
Forward Bias Current 50 mA
Power Dissipation 250 mW
RoHS Compliant
Part Numbers1
CT2Reverse Volt-
age
Nominal
Carrier
Transition
Time
Nominal
Input
Nominal
Output
(pF) (V)
(nS) (pS) (GHz) (GHz)f=1 MHz,
VR=6.0 V Ir =10 uA
Min. Max. Min. Typical Max
MAVR-044767-0287AT 3.0 4.5 30 250-500 600 0.05-5 0.5-1.5
MA144769-287T
MAVR-044769-12790T 0.8 1.2 30 20-50 150 0.1-1 1-5
1. The prefix defines package style, configuration and packaging information. Contact representative for complete part identific ation.
2. Capacitance @ 1 MHz
2
Surface Mount Low Power Step Recovery Diodes
Rev. V1
MAVR-0447 Series
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product 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
Case Styles
F
D
H
J
A
G
L
C
E
B
K
N
M
INCHES MILLIMETERS
DIM. MIN. MAX. MIN. MAX.
A0.048 1.22
B0.008 0.20
C0.040 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
K0.103 2.60
L0.024 0.60
DIM. GRADIENT
M10max.
N2. . .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 .0197 .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 .0098 nominal 0.250 nominal
H .0433 nominal
I .027 .035 0.68 0.89
1.10 nominal
3
Surface Mount Low Power Step Recovery Diodes
Rev. V1
MAVR-0447 Series
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product 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
Mounting Information
The illustration indicates the recommended mount-
ing pad configuration for the SOT-23 and SC-79
packages.
Permanent attachment is performed by a reflow sol-
dering 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
Dimenstions:
min.
min.
SOT-23
Package Configuration
SOT-23 (Case Style 287) SC-79 (Case Style 1279)
