Bulletin PD-20646 rev. C 11/04
1N5817
SCHOTTKY RECTIFIER
1.0 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 1 Apk, T
J
= 25°C
range
Description/Features
Units
A
V
A
V
°C
The 1N5817 axial leaded Schottky rectifier has been optimized
for very low forward voltage drop, with moderate leakage.
Typical applications are in switching power supplies, convert-
ers, free-wheeling diodes, and reverse battery protection.
Low profile, axial leaded outline
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free plating
Values
1.0
20
240
0.45
- 65 to 150
CASE STYLE AND DIMENSIONS
Conform to JEDEC Outline DO-204AL (DO-41)
Dimensions in millimeters and inches
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1N5817
Bulletin PD-20646 rev. C 11/04
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
1N5817
20
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
I
FSM
Max. Peak One Cycle Non-Repetitive
Surge Current, @ T
J
= 25°C
1N5817 Units
1.0
240
40
A
A
Conditions
50% duty cycle @ T
L
= 138 °C, rectangular wave form
5µs Sine or 3µs Rect. pulse
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
Electrical Specifications
Parameters
V
FM
I
RM
C
T
L
S
Max. Forward Voltage Drop
(1)
Typ.
0.42
0.50
0.012
2.0
110
8.0
-
Max.
0.45
0.75
1.0
10
-
-
10000
Units
V
V
mA
mA
pF
nH
V/ µs
Conditions
@ 1A
@ 3A
T
J
= 25 °C
T
J
= 100 °C
1Mhz), @ 25°C
T
J
= 25 °C
V
R
= rated V
R
Max. Reverse Leakage Current (1)
Typical Junction Capacitance
Typical Series Inductance
V
R
= 5V
DC
(test signal range 100kHz to
Measured lead to lead 5mm from package body
(Rated V
R
)
dv/dt Max. Voltage Rate of Change
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Storage Temperature Range
1N5817 Units
°C
°C
- 65 to 150
32
100
Conditions
Max. Junction Temperature Range (2) - 65 to 150
R
thJL
Max. Thermal Resistance Junction
to Lead
R
thJA
Max. Thermal Resistance Junction
to Ambient
Wt
Approximate Weight
Case Style
(2) dPtot
dTj
<
1
Rth( j-a)
°C/W DC operation, Lead lenght = 1/8 inch.
°C/W DC operation, without cooling fin
0.33(0.012) gr (oz)
DO-204AL (DO-41)
thermal runaway condition for a diode on its own heatsink
2
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1N5817
Bulletin PD-20646 rev. C 11/04
100
Reverse Current - I
R
(mA)
100
10
Tj = 150˚C
1
0.1
50˚C
125˚C
100˚C
75˚C
0.01
0.001
25˚C
Instantaneous Forward Current - I
F
(A)
10
0.0001
0
5
10
15
20
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Peak Reverse Current
Vs. Reverse Voltage
1
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
1000
Junction Capacitance - C
T
(pF)
Tj = 25˚C
100
0.1
0
0.2
0.4
0.6
0.8
Forward Voltage Drop - V
FM
(V)
1
10
0
5
10
15
20
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Typical Forward Voltage Drop Characteristics
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3
1N5817
Bulletin PD-20646 rev. C 11/04
150
Allowable Lead Temperature (°C)
Allowable Power Loss (Watts)
0.5
0.4
0.3
145
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
140
Square wave
(D = 0.5)
DC
0.2
0.1
0
DC
135
see note (2)
130
0
0.4
0.8
1.2
1.6
Average Forward Current - I
F(AV)
(A)
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
0
0.4
0.8
1.2
1.6
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
Non-Repetitive Surge Current - I
FSM
(A)
1000
100
Tj = 25˚C
10
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D)
4
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1N5817
Bulletin PD-20646 rev. C 11/04
Ordering Information Table
Device Code
1N5817
1
TR
2
1
2
-
-
Part Number:1A, 20V
TR= Tape & Reel package (5000 pcs)
-
= Box package (1000 pcs)
Data and specifications subject to change without notice.
This product has been designed for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
IR WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 11/04
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