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SRD820 THRU SRD860
8.0 AMPS. Schottky Barrier Rectifiers
Voltage Range 20 to 60 Volts Current 8.0 Amperes
Features
Low forward voltage 125OC operating junction temperature Epoxy meets UL94, VO at 1/8" Guaranteed reverse avalanche Compact size Lead formed for surface mount
D-PAK
.250(6.55) .246(6.45) .211(5.36) .207(5.26) .093(2.35) .089(2.25) .013(0.54) .011(0.48)
Marking
.274(6.95) .270(6.85) .250(6.55) .246(6.45) .043(1.10) .035(0.90)
05
.384(9.75) .364(9.25) .112(2.85) .092(2.35) .059(1.45) .039(0.95)
05
30
5
Mechanical Data
Cases: Epoxy, molded Weight: 0.4 gram (approximately) Finish: All external surfaces corrosion resistant and terminal leads are readily solderable Lead and mounting surface temperature for soldering purposes: 260OC max. for 10 seconds Shipped 75 units per plastic tube Marking: SRD820, SRD830, SRD840, SRD850, SRD860
.024(0.60) .031(0.80)
.013(0.54) .011(0.48) .053(1.30) .045(1.10)
.211(5.36) .207(5.26)
.165(4.20) .149(3.80)
1
2
3
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol SRD SRD SRD Type Number
Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at TC= 88 Nonrepetitive Peak Surge Current (Surge applied at rated load conditions halfwave, single phase, 60 HZ) Maximum Instantaneous Forward Voltage at @4.0A Maximum D.C. Reverse Current @ Tc=25 at Rated DC Blocking Voltage(Note 1) @ Tc=100 Maximum Thermal Resistance Per Leg (Note 2) Operating Junction Temperature Range Storage Temperature Range
VRRM VRMS VDC I(AV) IFSM VF IR RJC RJA TJ TSTG
820 20 14 20
830 30 21 30
840 40 28 40 8.0 75
SRD 850 50 35 50
SRD 860 60 42 60
Units
V V V A A
0.55 1.4 35 6 80 -65 to +125 -65 to +150
0.7
V mA mA /W
Notes: 1. Pulse Test: Pulse Width = 300us, 2.0% Duty Cycle. 2. Thermal Resistance from Junction to Case and Thermal Resistance from Junction to Ambient.
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RATINGS AND CHARACTERISTIC CURVES (SRD820 THRU SRD860 )
FIG.1- FORWARD CURRENT DERATING CURVE
10
FIG.2-TYPICAL FORWARD CHARACTERISTICS PER LEG
PEAK FORWARD SURGE CURRENT. (A)
10
9
Tj=125 C
AVERAGE FORWARD CURRENT. (A)
8 7 6 5 4 3 2 1 0 80
1
0.1
0.01 85 90 95 100 105 110 115
O
120
125
130
0
0.1
0.2
0.3
0.4
0.5
0.6
CASE TEMPERATURE. ( C)
INSTANTANEOUS FORWARD VOLTAGE. (V)
100
FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG
FIG.4- TYPICAL JUNCTION CAPACITANCE PER LEG
INSTANTANEOUS REVERSE CURRENT. (mA)
Tj=100 C
1000
CAPACITANCE. (pF)
O
Tj=25 C
10
1
0.1
Tj=25 C
0.01 100
O
0
5
10
15
20
25
30
35
0.1
1
PERCENT OF RATED PEAK REVERSE VOLTAGE.
5 10 REVERSE VOLTAGE. (V)
30
60
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