20SQ040~20SQ045
SCHOTTKY BARRIER RECTIFIERS
For PV Solar Cell Bypass Protection
REVERSE VOLTAGE – 40 to 45 Volts
FORWARD CURRENT – 20 Amperes
FEATURES
•
Metal of silicon rectifier, majority carrier conduction
•
Guard ring for transient protection
•
Low power loss, high efficiency
•
High surge¤t capability, low VF
APPLICATION
•
For use in Solar Cell junction box as a bypass diode for
protection, using DC forward current without reverse bias
MECHANICAL DATA
•
Case: JEDEC R-6 molded plastic
•
Polarity : Color band denotes cathode
•
Weight : 0.07 ounces, 2.1grams
•
Mounting position: Any
• Soldering condition : Temp 260℃±5 (Duration 10±1s)
R6
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
°C
ambient temperature unless otherwise specified.
PARAMETER SYMBOL
20SQ040 20SQ045 UNIT
Maximum Repetitive Peak Reverse Voltage V
RRM
40 45 V
Maximum DC Blocking Voltage V
DC(AV)
40 45 V
Average Rectified Output Current @Tc=100°C
I
F
20 A
Peak Forward Surge Current 8.3ms single half sine-wave
superimposed on rated load I
FSM
275 A
Maximum Forward Voltage at 20A DC
Note (1) Tj=25°C V
F
0.55 V
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Tj=25°C
Tj=100°C IR 1.0
100 mA
Typical thermal resistance Junction to Lead (Note 3) R
Θ
JL
2.0
Typical thermal resistance Junction to Case (Note 3) R
Θ
JC
7.0
Typical thermal resistance Junction to Ambient (Note 3) R
Θ
JA
40
°C/W
Typical Thermal Resistance (Note 2) C
J
1300 pF
Operating junction temperature T
J
150 °C
Junction temperature in DC forward current without reverse
bias, t ≦ 1 h
Tj
(Note 4) ≦200 °C
Storage temperature range T
STG
-55 to +150 °C
Note : REV. 1, Apr-2013, KDHG03
(1) 300us Pulse Width, 2% Duty Cycle.
(2) Measured at 1.0MHz and applied reverse voltage of 4.0 V
DC
.
(3) Thermal Resistance test performed in accordance with JESD-51.
(4) Meets the requirement of IEC 61215 ed. 2 bypass diode thermal test.
RATING AND CHARACTERISTIC CURVES
20SQ040~20SQ045
FIG.1- FORWARD CURRENT DERATING CUR VE
0
2
4
6
8
10
12
14
16
18
20
0 25 50 75 100 125 150
CASE TEMPERATURE, (℃)
AVERAGE FORWARD CURRENT, (A)
FIG.2- MAXIMUM NON-REPETITIVE SURGE
CURRENT
0
45
90
135
180
225
270
1 10 100
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE CURRENT, (A)
FIG.3- TYPICAL JUNCTION CAPACITANCE
100
1000
10000
1 10 100
REVERSE VOLTAGE, (V)
Capacitance,(pF)
FIG.4- TYPICAL FORWARD CHARACTERISTICS
0. 01
0.1
1
10
100
0.001 0.101 0.201 0. 301 0.401 0.501
INSTANTANEOUS FORWARD VOLTAGE, (V)
INSTANTANEOUS FORWARD CURRENT,
(A)
FIG.5- TYPICAL REVERSE CHARACT ERISTICS
0.01
0.1
1
10
100
1000
0 20 40 60 80 100 120
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
INSTANTANEOUS REVERSE CURRENT, (mA)
PULSE WIDTH 300us,
2% Duty Cycle
8.3ms Single Half Sine-Wave
RESISTIVE OR INDUCTIVE LOAD
Tj=25°C
Tj=125°C
Tj=125°C
Tj=25°C,
Legal Disclaimer Notice
20SQ040~20SQ045
Important Notice and Disclaimer
LSC reserves the right to make changes to this document and its products and specifications
at any time without notice. Customers should obtain and confirm the latest product
information and specifications before final design, purchase or use.
LSC makes no warranty, representation or guarantee regarding the suitability of its products
for any particular purpose, nor does LSC assume any liability for application assistance or
customer product design. LSC does not warrant or accept any liability with products which
are purchased or used for any unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of
LSC.
LSC products are not authorized for use as critical components in life support devices or
systems without express written approval of LSC.
