SR202
2 Amp Schottky
Barrier Rectifier
DO-41
Features
Schottky Barrier Rectifier
Guard Ring Protection
Low Forward Voltage
Reverse Energy Tested
High Current Capability
Extremely Low Thermal Resistance
DIMENSIONS
INCHES
MM
DIM
MIN
MAX
MIN
MAX
NOTE
A
.166
.205
4.10
5.20
B
.080
.107
2.00
2.70
C
.028
.034
.70
.90
D
1.000
---
25.40
---
Maximum Ratings
Operating Temperature: -50
C to +125
C
Storage Temperature: -50
C to +125
C
Maximum Thermal Resistance; 30
C/W Junction To Lead
MST
catalog
Number
Device
Marking
Maximum
RMS
Voltage
Maximum
DC
Blocking
Voltage
SR202 SR202 20V 14V 20V
Electrical Characteristics @ 25
C Unless Otherwise Specified
Average forward
current
I
F(AV)
2A
Square wave
Maximum surge
current
I
FSM
50A
8.3ms, half sine,
T
J
= 150
C
Max peak forward
V
FM
I
FM
= 2.0A; T
J
=
25
C*
Max peak reverse
current 1.0 mA
I
RM
V
RRM
, T
J
= 25
C
Typical junction
capacitance
C
J
50pF
V
R
= 5.0V, T
J
=
25
C
*Pulse test: Pulse width 300
sec, Duty cycle 2%
A
B
C
D
D
Cathode
Mark
voltage
SR202-SR204 .55V
SR206 .70V
SR206 SR206 60V 42V 60V
SR204 SR204 40V 28V 40V
SR203 SR203 30V 21V 30V
SR202
THRU
SR206
20 - 60 Volts
Maximum
Voltage
Reverse
Recurrent
Peak
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SR202 thru SR206
Maximum Allowable Case Temperature -
C
versus
Average Forward Current - Amperes
Figure 1
Typical Forward Characteristics
0
.2
.4
.6
.8
1.0
1.2
1.4
.1
.2
.4
.6
.8
1.0
2.0
4.0
6.0
8.0
10
20
40
60
80
100
25
C
Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
Volts
Amps
1
10
100
10
20
30
40
50
60
Figure 3
Maximum Nonrepetitive Surge Current
T
L
= 70
C
Peak Forward Current - Amperes
versus
Number of Cycles at 60Hz
Amps
Cycles
Figure 4
Forward Current Derating
.4
.8 1.2 1.6 2.0 2.4 2.8 3.2
3.6
4.0
90
95
100
105
110
115
120
125
Resistive or
Inductive Load
Amps
C
Figure 2
Typical Reverse Characteristics
0
5
10
15
20
25 30
35
40
45
50
.001
.01
.1
1.0
10
100
100
C
75
C
25
C
Typical Reverse Current - mA
versus
Reverse Voltage - Volts
mA
Volts
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