Dimensions in millimeters and inches
Conform to JEDEC Outline DO-204AL (DO-41)
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
IF(AV) Rectangular 1.0 A
waveform
VRRM 20 V
IFSM @ tp = 5 µs sine 240 A
VF@
1 Apk, TJ
= 25°C 0.45 V
TJrange - 65 to 150 °C
Characteristics 1N5817 Units 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
Description/Features
SCHOTTKY RECTIFIER 1.0 Amp
1N5817
Bulletin PD-20646 rev. B 05/02
1
www.irf.com
1N5817
Bulletin PD-20646 rev. B 05/02
2www.irf.com
VFM Max. Forward Voltage Drop (1) 0.42 0.45 V @ 1A
0.50 0.75 V @ 3A
IRM Max. Reverse Leakage Current (1) 0.012 1.0 mA TJ = 25 °C
2.0 10 mA TJ = 100 °C
CTTypical Junction Capacitance 110 - pF VR = 5VDC (test signal range 100kHz to
1Mhz), @ 25°C
LSTypical Series Inductance 8.0 - nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change - 10000 V/ µs (Rated VR)
Part number 1N5817
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
IF(AV) Max. Average Forward Current 1.0 A 50% duty cycle @ TL = 138 °C, rectangular wave form
IFSM Max. Peak One Cycle Non-Repetitive 240 5µs Sine or 3µs Rect. pulse
Surge Current, @ TJ = 25°C 40 10ms Sine or 6ms Rect. pulse
Absolute Maximum Ratings
Parameters 1N5817 Units Conditions
Following any rated
load condition and with
rated VRRM applied
A
(1) Pulse Width < 300µs, Duty Cycle <2%
20
TJ = 25 °C
Electrical Specifications
Parameters Typ. Max. Units Conditions
VR = rated VR
TJMax. Junction Temperature Range (2) - 6 5 t o 15 0 °C
Tstg Max. Storage Temperature Range - 65 to 150 °C
RthJL Max. Thermal Resistance Junction 32 °C/W DC operation, Lead lenght = 1/8 inch.
to Lead
RthJA Max. Thermal Resistance Junction 100 °C/W DC operation, without cooling fin
to Ambient
Wt Approximate Weight 0.33(0.012) gr (oz)
Case Style DO-204AL (DO-41)
Parameters 1N5817 Units Conditions
< thermal runaway condition for a diode on its own heatsink
Thermal-Mechanical Specifications
(2) dPtot 1
dTj Rth( j-a)
1N5817
Bulletin PD-20646 rev. B 05/02
3www.irf.com
Fig. 2 - Typical Peak Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Typical Forward Voltage Drop Characteristics
Instantaneous Forward Current - I F
(A)
Forward Voltage Drop - V FM
(V)
Reverse Voltage - VR (V)
Reverse Current - I R
(mA)
Reverse Voltage - VR (V)
Junction Capacitance - C T (pF)
0.1
1
10
100
0 0.2 0.4 0.6 0.8 1
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
10
100
1000
0 5 10 15 20
Tj = 25˚C
0.0001
0.001
0.01
0.1
1
10
100
0 5 10 15 20
125˚C
100˚C
75˚C
50˚C
25˚C
Tj = 150˚C
1N5817
Bulletin PD-20646 rev. B 05/02
4www.irf.com
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC
;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D)
Average Forward Current - I F(AV)
(A)
Allowable Lead Temperature (°C)
Average Forward Current - I F(AV)
(A)
Allowable Power Loss (Watts)
Square Wave Pulse Duration - t p
(microsec)
Non-Repetitive Surge Current - I FSM (A)
130
135
140
145
150
0 0.4 0.8 1.2 1.6
DC
see note (2)
Square wave
(D = 0.5)
0
0.1
0.2
0.3
0.4
0.5
0 0.4 0.8 1.2 1.6
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
100
1000
10 100 1000 10000
Tj = 25˚C
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
1N5817
Bulletin PD-20646 rev. B 05/02
5www.irf.com
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. 05/02
Data and specifications subject to change without notice.
This product has been designed for Industrial Level.
Qualification Standards can be found on IR's Web site.
Ordering Information Table
Device Code
12
1- Part Number:1A, 20V
2- TR= Tape & Reel package (5000 pcs)
- = Box package (1000 pcs)
1N5817 TR
