SR2020CT THRU SR2060CT
SCHOTTKY BARRIER RECTIFIERS
Reverse Voltage – 20 to 60 Volts
Forward Current – 20 Amperes
Features
•
Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
•
Metal of silicon rectifier, majority carrier conduction
•
Guard ring for transient protection
•
High capability
•
Low power loss, high efficiency
•
High current capability, low forward voltage
•
High surge capacity
•
For use in low voltage, high frequency inverters, free
wheeling and polarity protection applications
Mechanical Data
•
Case:
Molded plastic body, TO-220
•
Epoxy:
UL 94V-O rate flame retardant
•
Terminals:
Leads solderable per MIL-STD-202, method 208
•
Polarity:
As marked
•
Mounting Position:
Any
PIN 1
PIN 3
CASE
PIN 2
PIN 1
PIN 3
PIN 1
CASE PIN 3
PIN 2
DOUBLER
SUFFIX "D"
CASE
PIN 2
POSITIVE CT
NEGATIVE CT
SUFFIX "A"
Absolute Maximum Ratings and Characteristics
Ratings at 25
0
C unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load,
derate by 20%.
Symbols SR2020CT SR2030CT SR2040CT SR2050CT SR2060CT
Units
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current (see fig.1)
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (JEDEC method)
Maximum forward voltage at 10 A DC
Maximum reverse current
at rated blocking voltage
T
C
= 25
O
C
T
C
= 100
O
C
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
C
J
R
θ
JC
T
J
T
S
20
14
20
30
21
30
40
28
40
20
250
50
35
50
60
42
60
V
V
V
A
A
0.55
1.0
50
600
2.0
-55 to +125
-55 to +150
0.70
V
mA
Typical junction capacitance (Note 1)
Typical thermal resistance (Note 2)
Operating junction temperature range
Storage temperature range
400
O
pF
C/W
O
O
-55 to +150
C
C
Notes:
(1) Measured at 1MH
Z
and applied reverse voltage of 4 Volts DC
(2) Thermal Resistance from Junction to case per leg
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 04/09/2003
SR2020CT THRU SR2060CT
Forward current derating curve
20
Average forward current, A
10
Typical reverse characteristics per leg
16
Instantaneous reverse current, mA
TJ=100 C
CT
060
SR2
CT-
050
SR2
020C
S R2
12
8
4
0
50
1
100
Case temperature( C)
Maximum non-repeitive peak
forward surge current per leg
0.001
CT
2040
T-SR
TJ=75 C
0.1
150
TJ=25 C
0.01
Peak forward surge current, A
300
8.3ms single phase half sine
wave per leg (JEDEC method)
Tj = Tj max.
0
40
80
120
140
Percent of rated peak reverse voltage, %
200
100
Typical forward characteristics per leg
100
0
1
10
100
Instantaneous forward current, A
Number of cycles at 60Hz
10
SR2020CT-SR2040CT
Typical junction capacitance per leg
SR2050CT-SR2060CT
Junction capacitance, pF
4000
Tj=25 C
f=1MHz
Vsig=50mVp-p
1
1000
SR2020CT - SR2040CT
Tj=25 C
Pulse width=300 s
1% duty cycle
0.1
0.2
0.4
0.6
0.8
0.9
SR2050CT - SR2060CT
100
Instantaneous forward voltage, V
0.1
1
10
100
Reverse voltage,V
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 04/09/2003
嵌入式系统
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