MA-COM MA44621A

Step Recovery
Diodes
MA43000, MA44600,
MA44700 Series
V3.00
Features
●
●
●
●
Low Transition Times
Tight Capacitance Ranges
High Voltage and Low Thermal Resistance
for Higher Input Power
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 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 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)
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
1
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
V3.00
Electrical Specifications @ 25°C
Snap Varactors
Model1
Number
Minimum2
Reverse
Voltage VR
(Volts)
Junction3
Capacitance
Range (Cj)
Min./Max.
(pF)
Minimum
Lifetime
10 mA/6 mA
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
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 in chip form, add the suffix “134” to
the model number. The nominal chip size for the MA44600 series is
15 mils.
Transition Time TS4
(ps)
2. Reverse voltage (VR) is measured at a reverse bias current of 10 µA.
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 voltage recovery trace. Test conditions are +10 mA and -10 volts.
Case Styles (See appendix for complete dimensions)
91
30
93
134
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
2
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
V3.00
Electrical Specifications @ 25° C (Cont’d)
High Power Circuit Tested Step Recovery Diodes
Output
Frequency
(GHz)
Maximum
Input
Power
(Watts)
Min./Max.2
Reverse
Voltage
VR
(Volts)
Model
Number
Case1
Style
Minimum
Output
Power
(Watts)
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
Input
Frequency
(GHz)
Model
Number
Min./Max.3
Junction
Capacitance
Cj
(pF)
Min./Max.
Lifetime, TL
10 mA/6 mA
(ns)
Maximum
Snap Time, TS
-10V/10 mA
(ps)
Maximum
Thermal
Resistance, jc
(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.
Total
Capacitance
(pF)
Minimum
Reverse
Voltage VR
(Volts)
Model
Number
f = 1 MHz
VR = 6 V
IR = 10µA
MA44767
3 - 4.5
MA44768
1.6 - 2.4
MA44769
0.8 -1.2
30V
Suggested
Nominal
Carrier
Lifetime
TL (ns)
Maximum
Transition
Time
TS (psec)
Nominal
Input
Frequency
(GHz)
Nominal
Output
Frequency
(GHz)
250 - 500
600
0.05 - 0.5
0.5 - 1.5
75 - 225
250
0.1 - 1
0.5 - 2.5
20 - 50
150
0.1 - 1
1-5
Notes:
1. The standard case styles are indicated for each model number.
Other case styles are available. Consult the factory for information.
2. Reverse voltage is measured at reverse bias current of 10 µA.
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)
103
91
SOT-23 (High Profile)
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
3
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Step Recovery Diodes
MA43000, MA44600, MA44700 Series
V3.00
Electrical Specifications @ 25° C (Cont’d)
High Order Step Recovery Diode Varactors for Use in Comb Generation
Min./Max.3
Reverse
Voltage VR
(Volts)
Min./Max.4
Junction
Capacitance
Cj
(pF)
Min./Max.
Carrier
Lifetime, TL
(ps)
Maximum
Snap Time, TS
-10V/10 mA
(ps)
Maximum
Thermal
Resistance
jc(C/W)
Nominal2
Output
Frequency
(GHz)
Model
Number
Case1
Style
Maximum2
Input
Power
(Watts)
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
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 instantaneous bandwidth.
3. Breakdown voltage is measured at a reverse bias voltage of 10 µA.
4. Junction capacitance is measured at a reverse bias voltage of 6 volts
and a frequency of 1 MHz.
Case Styles (See appendix for complete dimensions)
93
30
Absolute Maximum Ratings @ 25°C
Parameter
Absolute Maximum
Temperature Range
Operating Range
-65°C to +200°C
-65°C to +125°C (SOT-23 only)
Storage Range
-65°C to +200°C
-65°C to +125°C (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-S19500, MIL-STD-202 and MIL-STD-750 which specify
mechanical, electrical, thermal and other environmental
tests common to military semiconductor products.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
4
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020