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 Schottky Barrier Rectifier
COMCHIP
www.comchiptech.com
1N5817 thru 1N5819
Reverse Voltage: 20 to 40V Forward Current: 1.0A
Features
- Plastic package has Underwriters Laboratory Flammability Classification 94V-0 - Low power loss, high efficiency - For use in low voltage high frequency inverters, free wheeling, and polarity protection applications - Guardring for overvoltage protection
DO-41
1.0 (25.4) Min. 0.107 (2.7) 0.080 (2.0) Dia.
Mechanical Data
- Case: JEDEC DO-41 molded plastic body - Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 - High temperature soldering guaranteed: 250C/10 seconds 0.375" (9.5mm) lead length, 5lbs. (2.3kg) tension - Polarity: Color band denotes cathode end - Mounting Position: Any - Weight: 0.34 g
0.205 (5.2) 0.160 (4.1)
1.0 (25.4) Min. 0.034 (0.86) 0.028 (0.71) Dia.
Dimensions in inches and (millimeters)
Maximum Ratings and Thermal Characteristics (TA = 25C unless otherwise noted)
Parameter * Maximum repetitive peak reverse voltage Maximum RMS voltage * Maximum DC blocking voltage * Maximum non-repetitive peak reverse voltage * Maximum average forward rectified current 0.375" (9.5mm) lead length at TL=90C * Peak forward surge current, 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) at TL=70C Typical thermal resistance - junction-to-ambient (glass) (Note 2) - junction-to-ambient (plastic) - junction-to-lead (plastic) *Storage temperature range Symbol VRRM VRMS VDC VRSM IF(AV) IFSM RJA RJA RJL TJ, TSTG
(TA = 25C unless otherwise noted)
1N5817 20 14 20 24
1N5818 30 21 30 36 1.0 25 130 50 15 -65 to +125
1N5819 40 28 40 48
Unit V V V V A A
C/W C
Electrical Characteristics
Parameter
Symbol
(Note 1) (Note 1)
1N5817 0.450 0.750
1N5818 0.550 0.875 1.0 10 110
1N5819 0.600 0.900
Unit V V mA pF
* Maximum instantaneous forward voltage at 1.0 * Maximum instantaneous forward voltage at 3.1 * Maximum average reverse current at rated DC blocking voltage (Note 1)
VF VF IR CJ
TA = 25C TA = 100C
Typical junction capacitance at 4.0V, 1.0MHz
*JEDEC registered values Notes: (1) Pulse test: 300s pulse width, 1% duty cycle (2) Thermal resistance from junction to lead vertical P.C.B. mounted, 0.375" (9.5mm) lead length with 1.5 x 1.5" (38 x 38mm) copper pads
MDS0309002A Page 1
Schottky Barrier Rectifier
COMCHIP
www.comchiptech.com
Ratings and Characteristic Curves (TA = 25C unless otherwise noted)
Fig. 2 - Maximum Non-Repetitive Peak Forward Surge Current
30
Fig. 1 - Forward Current Derating Curve
1.0
Peak Forward Surge Current (A)
Average Forward Current (A)
0.75
Resistive or Inductive Load 0.375" (9.5mm) Lead Length
25 20
0.5
15
10 5 0
0.25
0
0
20
40
60
80
100
120
140
1
10
100
Case Temperature (C)
Number of Cycles at 60 HZ
Fig. 3 - Typical Instantaneous Forward Characteristics
50
TJ = 125C
Pulse Width = 300s 1% Duty Cycle
Fig. 4 - Typical Reverse Characteristics
100
10
Instantaneous Reverse Current (mA)
Instantaneous Forward Current (A)
10
TJ = 125C
1.0
1.0
TJ = 25C
0.1
TJ = 75C
0.1
0.01
TJ = 25C
0.01 0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.001 0
20
40
60
80
100
Instantaneous Forward Voltage (V)
Percent of Rated Peak Reverse Voltage (%)
Fig. 5 - Typical Junction Capacitance
400
Fig. 6 - Typical Transient Thermal Impedance
100
Transient Thermal Impedance (C/W)
Junction Capacitance (pF)
TJ = 25C f = 1.0 MHZ Vsig = 50mVp-p
100
10
1
10 0.1
1
10
100
0.1 0.01
0.1
1
10
100
Reverse Voltage (V)
t -- Pulse Duration (sec.)
MDS0309002A
Page 2


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