M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel.
+44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
1
Specifications Subject to Change Without Notice.
V3.00
Step Recovery
Diodes
MA43000, MA44600,
MA44700 Series
Features
q
Low Transition Times
q
Tight Capacitance Ranges
q
High Voltage and Low Thermal Resistance
for Higher Input Power
q
Surface Mount Package Available (SOT-23)
Description
The MA44600 series of Step Recovery diodes is designed
for use in low and moderate power multipliers with out-
put 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 imped-
ance. 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.
Applications
High Order Narrow Band Moderate Power Multipliers
(MA44600 series)
Comb Generators (MA43592, MA43543)
High Power Circuit Tested Multiplier (MA43000 Series)
Surface Mount Low Power Multipliers (MA44700 Series)
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel.
+44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
2
Specifications Subject to Change Without Notice.
V3.00
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
Electrical Specifications
@ 25C
Snap Varactors
Notes:
1. When ordering, specify the desired case style by adding the case des-
ignation as a suffix to the model number. Case styles for the MA44600
series are 30, 91 and 93. To order in chip form, add the suffix "134" to
the model number. The nominal chip size for the MA44600 series is
15 mils.
Junction3
Minimum2
Capacitance
Minimum
Transition Time T
S
4
Reverse
Range (C
j
)
Lifetime
(ps)
Model1
Voltage V
R
Min./Max.
10 mA/6 mA
Number
(Volts)
(pF)
TI (ns)
Nominal
Max.
MA44621A
20
0.2 / 0.3
7
50
100
MA44621B
20
0.3 / 0.4
7
50
100
MA44621C
20
0.4 / 0.5
7
50
100
MA44622A
20
0.5 / 0.7
7
50
100
MA44622B
20
0.7 / 0.9
7
50
100
MA44631A
30
0.3 / 0.5
8
70
100
MA44631B
30
0.5 / 0.7
8
70
100
MA44631C
30
0.7 / 0.9
8
70
100
MA44641A
40
0.4 / 0.6
12
90
150
MA44641B
40
0.6 / 0.8
12
90
150
MA44641C
40
0.8 / 1.1
12
90
150
MA44652A
50
0.5 / 0.7
15
150
200
MA44652B
50
0.7 / 0.9
15
150
200
MA44652C
50
0.9 / 1.1
15
150
200
MA44663A
60
0.7 / 0.9
20
250
300
MA44663B
60
0.9 / 1.1
20
250
300
MA44663C
60
1.1 / 1.5
20
250
300
MA44663D
60
1.5 / 2.0
20
250
300
2. Reverse voltage (V
R
) is measured at a reverse bias current of 10 A.
3. Junction capacitance is measured at a reverse voltage of 6 volts and a
frequency of 1 MHz.
4. Transition time is measured between 20% and 80% points on the volt-
age recovery trace. Test conditions are +10 mA and -10 volts.
Case Styles
(See appendix for complete dimensions)
30
91
93
134
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel.
+44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
3
Specifications Subject to Change Without Notice.
V3.00
Notes:
1. The standard case styles are indicated for each model number.
Other case styles are available. Consult the factory for information.
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
Electrical Specifications
@ 25 C (Cont'd)
High Power Circuit Tested Step Recovery Diodes
Min./Max.2
Minimum
Maximum
Reverse
Output
Input
Output
Input
Voltage
Model
Case1
Power
Frequency
Frequency
Power
V
R
Number
Style
(Watts)
(GHz)
(GHz)
(Watts)
(Volts)
MA43000
103
4.0
0.333
2.0
15
85 - 105
MA43002
91
1.5
2.000
6.0
5
45 - 70
MA43004
91
0.3
3.300
13.0
2
30 - 45
Min./Max.3
Junction
Min./Max.
Maximum
Maximum
Capacitance
Lifetime, T
L
Snap Time, T
S
Thermal
Model
C
j
10 mA/6 mA
-10V/10 mA
Resistance, jc
Number
(pF)
(ns)
(ps)
(C/W)
MA43000
3 - 4.50
250 - 500
600
12
MA43002
1.60 - 2.40
75 - 225
250
25
MA43004
0.45 - 0.85
20 - 50
150
45
Surface Mount Step Recovery Diodes (SOT-23)
Min./Max.
Minimum
Suggested
Total
Reverse
Capacitance
Voltage V
R
Nominal
Maximum
Nominal
Nominal
(pF)
(Volts)
Carrier
Transition
Input
Output
Model
f = 1 MHz
I
R
= 10A
Lifetime
Time
Frequency
Frequency
Number
V
R
= 6 V
T
L
(ns)
T
S
(psec)
(GHz)
(GHz)
MA44767
3 - 4.5
250 - 500
600
0.05 - 0.5
0.5 - 1.5
MA44768
1.6 - 2.4
30V
75 - 225
250
0.1 - 1
0.5 - 2.5
MA44769
0.8 -1.2
20 - 50
150
0.1 - 1
1 - 5
2. Reverse voltage is measured at reverse bias current of 10 A.
3. Junction capacitance is measured at a reverse bias of 6 volts and
a frequency of 1 MHz.
Case styles
(See appendix for complete dimensions)
91
103
SOT-23 (High Profile)
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel.
+44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
4
Specifications Subject to Change Without Notice.
V3.00
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
Notes:
1. The standard case styles are indicated for each model number. For
other available case styles, consult the factory.
2. This is an operable output frequency range and does not imply instan-
taneous bandwidth.
Min./Max.4
Maximum2
Min./Max.3
Junction
Min./Max.
Maximum
Maximum
Nominal2
Input
Reverse
Capacitance
Carrier
Snap Time, T
S
Thermal
Output
Model
Case1
Power
Voltage V
R
Cj
Lifetime, T
L
-10V/10 mA
Resistance
Frequency
Number
Style
(Watts)
(Volts)
(pF)
(ps)
(ps)
jc(C/W)
(GHz)
MA43592
30
1.0
25 - 40
0.2 - 0.30
9 - 27
90
70
1 - 12
MA43543
93
1.5
20 - 50
0.2 - 0.55
10 - 25
60
125
2 - 20
Absolute Maximum Ratings
@ 25C
Parameter
Absolute Maximum
Temperature Range
Operating Range
-65C to +200C
-65C to +125C (SOT-23 only)
Storage Range
-65C to +200C
-65C to +125C (SOT-23 only)
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-
19500, MIL-STD-202 and MIL-STD-750 which specify
mechanical, electrical, thermal and other environmental
tests common to military semiconductor products.
Electrical Specifications
@ 25 C (Cont'd)
High Order Step Recovery Diode Varactors for Use in Comb Generation
Case Styles
(See appendix for complete dimensions)
3. Breakdown voltage is measured at a reverse bias voltage of 10 A.
4. Junction capacitance is measured at a reverse bias voltage of 6 volts
and a frequency of 1 MHz.
30
93
PDF 
ZIP