RoHs Compliant
Silicon Step Recovery Diodes
Features
•
Low Transition Times
•
Tight Capacitance Ranges
•
High Voltage and Low Thermal Resistance for
Higher Input Power
•
Lead-Free (RoHs Compliant)
MA43000, MA44600 Series
V4
Absolute Maximum Ratings @ T
A
=+25 °C
(Unless Otherwise Noted)
1
Parameter
Operating Range
Storage Range
Absolute Maximum
-65°C to +175°C
-65°C to +200°C
Description and Applications
The MA44600 series of Step Recovery diodes is designed
for use in low and moderate power multipliers with output
frequencies of up to 20 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 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 or-
der multipliers such as comb generators. They are also
useful as efficient moderate power X2- X4 multipliers.
1. Operation of this device above any one of these parameters may cause
permanent damage.
Typical Case Styles
ODS-30
ODS-134
DIE
ODS-91
ODS-103
ODS-93
Maximum and Suggested Values of Snaptime (Ts)
vs. Multiplier Output Frequency
•
•
•
High Order Narrow Band Moderate Power Multipliers
(MA44600 series)
Comb Generators
(MA43592, MA43543)
High Power Circuit Tested Multiplier
(MA43000 Series)
Environmental Performance
The MA44600 and MA43000 series of diodes in ceramic
packages are capable of meeting the tests dictated by the
methods and procedures of the latest revisions of MIL-S-
9500, MIL-STD-202 and MIL-STD-750 which specify me-
chanical, electrical, thermal and other environmental tests
common to military semiconductor products.
Suggested Junction Capacitance vs.
Multiplier Output Frequency
Environmental Ratings PER MIL-STD-750
Storage Temperature
Temperature Cycle
Shock
Vibration
Constant Acceleration
Humidity
Method
1031
1051
2016
2056
2006
1021
Level
See maximum ratings
10 cycles, -65°C to +175°C
500 g’s
15 g’s
20,000 g’s
10 days
Specifications Subject to Change Without Notice.
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.
RoHs Compliant
Silicon Step Recovery Diodes
Electrical Specifications @ T
A
= +25 °C
Snap Varactors
Minimum Reverse
Voltage
2
(V
R
)
Part Number
1
Vr=6V
(V)
MA44621A
MA44631A
MA44631C
MA44641A
20
30
30
40
(pF)
0.200-0.300
0.300-0.500
0.700-0.900
0.400-0.600
If=10mA/
Ir=6mA
(nS)
7
8
8
12
(pS)
Nominal
50
70
70
90
(pS)
Max
100
100
100
150
Junction
Capacitance(C
j
)
3
Min./Max.
Minimum
Lifetime
(T
L
)
MA43000, MA44600 Series
V4
Transition Time (T
s
)
4
High Power Circuit Tested Step Recovery Diodes
Minimum
Reverse
Voltage
2
(V
R
)
Min./Max
Junction
Capacitance
(C
j
)
3
Min./Max.
Vr=6V
(V)
MA43000
MA43002
MA43004
85-105
45-70
30-45
Case Style
(pF)
3.00-4.50
1.60-2.40
0.45-0.85
Minimum
Output Power
(Watts)
MA43000
MA43002
MA43004
103
91
91
4.0
1.5
0.3
Lifetime
(T
L
)
Min./Max.
If=10mA/
Ir=6mA
(nS)
250-500
75-225
20-50
Input
Frequency
(GHz)
0.333
2.000
3.300
(pS)
100
100
100
Output
Frequency
(GHz)
2.000
6.000
13.000
(°C/W)
12
25
45
Maximum
Input Power
(Watts)
15
5
2
Maximum
Snap Time
(T
s
)
4
Maximum
Thermal
Resistance
(θjc)
Part Number
1
Part Number
1
Notes:
1.
When ordering, specify the desired case style by adding the case designation as a suffix to the model number. Case styles for the MA44600 series
are -30,-91 and –93. To order chip form, add the suffix “-134” to the model number. The nominal chip size for the MA44600 series is 15 mils.
2.
Reverse voltage (V
R
) is measured at a reverse bias current of 10µA.
3.
Junction capacitance is measured at a reverse voltage of 6V and a frequency of 1MHz.
4.
Transition time is measured between 20% and 80% points on the voltage recovery trace. Test conditions are +10mA and –10 volts.
Specifications Subject to Change Without Notice.
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.
RoHs Compliant
Silicon Step Recovery Diodes
Electrical Specifications @ T
A
= +25 °C
High Order Step Recovery Diode Varactors for Use in Comb Generation
Junction
Minimum Reverse
Capacitance Lifetime
Voltage
3
(C
j
)
4
(T
L
)
(V
R
)
Min./Max.
Min./Max.
Min./Max
If=10mA/
Ir=6mA
(pS)
9-27
10-25
(pS)
90
60
(°C/W)
70
125
(GHz)
1.00-12.00
2.00-20.00
(Watts)
1.0
1.5
30
93
Maximum
Thermal
Maximum
Output
Resistance
Input
Frequency
2
Power
2
(θjc)
MA43000, MA44600 Series
V4
Maximum
Snap Time
(T
s
)
5
Case
Style
1
Part Number
1
Vr=6V
(V)
MA43592
MA43543
25-40
20-50
(pF)
0.20-0.30
0.20-0.55
Notes:
1.
The standard case styles are indicated for eac model number. For other available case styles. consult factory
2.
This is an operable output frequency range and does not imply instantaneous bandwidth.
3.
Reverse voltage (V
R
) is measured at a reverse bias current of 10µA.
4.
Junction capacitance is measured at a reverse voltage of 6V and a frequency of 1MHz.
5.
Transition time is measured between 20% and 80% points on the voltage recovery trace. Test conditions are +10mA and –10 volts.
Suggested Design Considerations
Minimum and Suggested Values of Minority
Lifetime (TL) for SRD vs.
Multiplier Input Frequency
Specifications Subject to Change Without Notice.
Approximate Minimum Breakdown Voltage
Required for SRD at Various Output Power Levels vs.
Output Frequency
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.
RoHs Compliant
Silicon Step Recovery Diodes
MA43000, MA44600 Series
V4
Case Styles
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.
RoHs Compliant
Silicon Step Recovery Diodes
MA43000, MA44600 Series
V4
Case Styles
5
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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