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
D1.000 --- 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 IF(AV) 2A Square wave
Maximum surge
current IFSM 50A 8.3ms, half sine,
TJ = 150°C
Max peak forward
VFM IFM = 2.0A; TJ =
25°C*
Max peak reverse
current 1.0 mA
IRM VRRM, TJ = 25°C
Typical junction
capacitance CJ50pF VR = 5.0V, TJ =
25°C
*Pulse test: Pulse width 300 µsec, 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
TL = 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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