- 170 -
SR1620PT THRU SR1660PT
16.0 AMPS. Schottky Barrier Rectifiers
Voltage Range
20 to 60 Volts
Current
16.0 Amperes
Features
Dual rectifier construction, positive center-tap
Plastic package has Underwriters Laboratory Flammability
Classifications 94V-0
Metal silicon junction, majority carrier conduction
Low power loss, high efficiency
High current capability, low VF
High
surge
capability
Epitaxial
construction
For use in low voltage, high frequency inverters, free
wheeling, and polarity protection applications
Guardring for transient protection
High temperature soldering guaranteed:
260
o
C/10 seconds, 0.17"(4.3mm)lead lengths at 5 lbs.,
(2.3kg) tension
Mechanical Data
Cases: JEDEC TO-3P/TO-247AD molded plastic
Terminals: Leads solderable per MIL-STD-750, Method 2026
Polarity:
As
marked
Mounting position: Any
Weight: 0.2 ounce, 5.6 grams
TO-3P/TO-247AD
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Symbol
SR
1620PT
SR
1630PT
SR
1640PT
SR
1650PT
SR
1660PT
Units
Maximum Recurrent Peak Reverse Voltage
V
RRM
20 30 40 50 60 V
Maximum RMS Voltage
V
RMS
14 21 28 35 42 V
Maximum DC Blocking Voltage
V
DC
20 30 40 50 60 V
Maximum Average Forward Rectified Current
(See Fig. 1)
I
(AV)
16 A
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load
(JEDEC method )
I
FSM
200 A
Maximum Instantaneous Forward Voltage @ 8.0A
(Note 3)
V
F
0.55
0.70
V
Maximum D.C. Reverse Current @ Tc=25
at Rated DC Blocking Voltage @ Tc=100
I
R
0.5
50
mA
mA
Typical Thermal Resistance Per Leg (Note 1)
R
JC
3.0
/W
Typical Junction Capacitance (Note 2)
Cj 700
400
pF
Operating Junction Temperature Range
T
J
-65 to +125
-65 to +150
Storage Temperature Range
T
STG
-65
to
+150
Notes: 1. Thermal Resistance from Junction to Case Per Leg, Mount on Heatsink Size of 2 in x 3 in x 0.25 in Al-Plate.
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0V D.C.
3. 300 us Pulse Width, 2% Duty Cycle
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RATINGS AND CHARACTERISTIC CURVES (SR1620PT THRU SR1660PT)
FIG.2- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT PER LEG
PEAK
FOR
W
ARD
SURGE
CURRENT
.
(A)
1
2
5
10
20
100
50
100
50
200
150
250
300
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine Wave
JEDEC Method
FIG.4- TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
AMPERES
.1
.2
.3
.4
.5
.6
.7
.8
0.1
1.0
10
100
INSTANTANEOUS FORWARD VOLTAGE. (V)
Tj=25 C
Pulse Width=300 s
2% Duty Cycle
o
SR1650PT THRU
SR1660PT
SR1620PT THRU
SR1640PT
FIG.3- TYPICAL REVERSE CHARACTERISTICS
PER LEG
INST
ANT
ANEOUS
REVERSE
CURRENT
MILLIAMPERES
0
20
40
60
80
100
120
140
0
0.1
1.0
10
100
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
Tj=100 C
O
Tj=25
O
C
Tj=75
O
C
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
A
VERAGE
FOR
W
ARD
CURRENT
AMPERES
0
50
100
150
0
4.0
8.0
12.0
16.0
20.0
CASE TEMPERATURE. ( C)
o
SR1650PT
-1660PT
SR1620PT
-1640PT
FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG
CAP
ACIT
ANCE.(pF)
.1
.4
1.0
4
10
40
100
100
200
400
600
1000
800
2000
4000
REVERSE VOLTAGE. (V)
SR1650PT
-1660PT
SR1620PT
-1640PT
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