Dated : 23/12/2002
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
1N17 ~ 1N19
SCHOTTKY BARRIER RECTIFIERS
Reverse Voltage – 20 to 40 Volts
R-1
Forward current – 1.0 Amperes
Features
• Metal silicon junction, majority carrier conduction
• Low power loss, high efficiency
• High current capability low forward voltage drop
• High surge capability
• For use in low voltage, high frequency inverters,
free wheeling, and polarity protection applications
Mechanical data
• Case: R-1 molded plastic body
• Terminals: Plated axial leads, solderable per MIL-STD-750, method 2026
• Polarity: color band denotes cathode end
• Mounting Position: Any
Absolute Maximum Ratings and Characteristics
Ratings at 25
oC ambient temperature unless otherwise specified.
Symbols
1N17
1N18
1N19
Units
Maximum Repetitive Peak Reverse Voltage
VRRM
20
30
40
Volts
Maximum RMS voltage
VRMS
14
21
28
Volts
Maximum DC Blocking Voltage
VDC
20
30
40
Volts
Maximum Non-repetitive Peak Reverse Voltage
VRSM
24
36
48
Volts
Maximum Average Forward Rectified Current
0.375” (9.5mm) Lead Length At TL = 90
OC
I(AV)
1
Amps
Peak Forward Surge Current, 8.3ms Single half sine-wave
Superimposed On Rated Load (JEDEC method) At TL = 70
OC
IFSM
25
Amps
Maximum Instantaneous Forward Voltage At 1 A
Maximum Instantaneous Forward Voltage At 3.1 A
VF
VF
0.45
0.75
0.550
0.875
0.60
0.90
Volts
Volts
TA = 25
OC
0.5
mAmps
Maximum Instantaneous Reverse Current at
Rated DC Blocking Voltage
TA = 100
OC
IR
10
mAmps
Typical Thermal Resistance
RθJA
RθJL
50
15
OC/W
Typical Junction Capacitance
CJ
110
pF
Storage and Operating Junction Temperature Range
TJ ,TS
-65 to +125
OC
Notes: 1. Pulse test: 300μs pulse width, 1% duty cycle
2. Thermal resistance (from junction to ambient) Vertical P.B.C. MOUNTED, 0.5” (12.7 mm) lead length
3. Measured at 1.0MHz and reverse voltage of 4.0 volts
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