Dated : 06/05/2006 H
R
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
SR820R THRU SR860R
SCHOTTKY BARRIER RECTIFIER
Reverse Voltage – 20 to 60 V
Forward Current – 8 A
Features
• High current capability, low VF
• Metal to silicon rectifier, majority carrier conduction
• Low power loss, high efficiency
• Plastic package has UL flammability classification 94V-0
• Guard ring for transient protection
• High surge capacity
• For use in low voltage, high frequency inverters free
wheeling, and polarity protection applications
Mechanical Data
Case: Molded plastic, TO-220A
Epoxy: UL 94V-0 rate flame retardant
Terminals: Leads solderable per MIL-STD-202,
method 208 guaranteed
Polarity: As marked
Mounting Position: Any
Absolute Maximum Ratings and Characteristics
Ratings at 25 OC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive
or inductive load. For capacitive load, derate current by 20%
Parameter
Symbols SR820R SR830R SR840R SR850R SR860R
Units
Maximum Recurrent Peak Reverse Voltage
VRRM
20
30
40
50
60
V
Maximum RMS Voltage
VRMS
14
21
28
35
42
V
Maximum DC Blocking Voltage
VDC
20
30
40
50
60
V
Maximum Average Forward Rectified Current
I(AV)
8
A
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method )
IFSM
150
A
Maximum Forward Voltage at 8 A DC and 25 OC
VF
0.55
0.7
V
Maximum Reverse Current at
TC = 25 OC
Rated DC Blocking Voltage
TC = 125 OC
IR
0.5
50
mA
Typical Junction Capacitance
1)
CJ
700
460
pF
Typical Thermal Resistance
2)
RθJC
3
O
C/W
Operating Temperature Range
Topr
- 55 to + 125
- 55 to + 150
O
C
Storage Temperature Range
Tstg
- 55 to + 150
O
C
1) Measured at 1 MHz and applied reverse voltage of 4 V.
2) Thermal Resistance from Junction to case per leg.
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