Datasheet

ManualsBrandsST ManualsDiodesSchottky Diode, 1A, 20V, DO-41

July 2011 Doc ID 6262 Rev 5 1/7

1N5817, 1N5818, 1N5819

Low drop power Schottky rectifier

Features

■ Very small conduction losses

■ Negligible switching losses

■ Extremely fast switching

■ Low forward voltage drop

■ Avalanche capability specified

Description

Axial Power Schottky rectifier suited for Switch

Mode Power Supplies and high frequency DC to

DC converters. Packaged in DO-41 these devices

are intended for use in low voltage, high

frequency inverters, free wheeling, polarity

protection and small battery chargers.

Table 1. Device summary

Symbol Value Unit

F(AV)

RRM

40 V

150 °C

(max) 0.45 V

DO-41

www.st.com

Summary of content (7 pages)

PAGE 1
N5817, 1N5818, 1N5819 Low drop power Schottky rectifier Features ■ Very small conduction losses ■ Negligible switching losses ■ Extremely fast switching ■ Low forward voltage drop ■ Avalanche capability specified A K DO-41 Description Axial Power Schottky rectifier suited for Switch Mode Power Supplies and high frequency DC to DC converters.
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Characteristics 1 1N5817, 1N5818, 1N5819 Characteristics Table 2. Absolute ratings (limiting values) Value Symbol VRRM Repetitive peak reverse voltage IF(RMS) Forward rms current Unit 1N5817 1N5818 1N5819 20 30 40 10 A Average forward current TL = 125 °C, δ = 0.
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1N5817, 1N5818, 1N5819 Figure 1. Characteristics Average forward power dissipation Figure 2. versus average forward current (1N5817/1N5818) Average forward power dissipation versus average forward current (1N5819) PF(av)(W) PF(av)(W) 0.7 0.6 d = 0.2 d = 0.1 0.5 d = 0.5 d = 0.1 0.6 d = 0.05 d = 0.2 d = 0.5 d = 0.05 0.5 0.4 d=1 d=1 0.4 0.3 0.3 0.2 0.2 T 0.1 d=tp/T IF(av) (A) 0.1 tp 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 Figure 3.
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Characteristics Figure 7. 10 1N5817, 1N5818, 1N5819 Non repetitive surge peak forward Figure 8. current versus overload duration (maximum values) (1N5817/1N5818) IM(A) 8 9 6 7 6 5 Ta=25°C 5 Ta=25°C Ta=75°C 4 Ta=75°C 4 3 3 Ta=100°C Ta=100°C 2 IM 1 IM t 1E-2 Figure 9. 1 t(s) d=0.5 0 1E-3 1.
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1N5817, 1N5818, 1N5819 Characteristics Figure 13. Forward voltage drop versus forward current (typical values) (1N5817/1N5818) 10.00 Figure 14. Forward voltage drop versus forward current (typical values) (1N5819) IFM(A) 10.00 IFM(A) 1.00 1.00 Tj=100°C Tj=100°C Tj=125°C Tj=125°C Tj=25°C 0.10 0.01 0.0 VFM(V) 0.1 0.2 0.3 0.4 Tj=25°C 0.10 0.5 0.6 0.7 0.8 0.9 VFM(V) 0.01 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 Figure 15.
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Package Information 2 1N5817, 1N5818, 1N5819 Package Information ● Epoxy meets UL94, V0 ● Band indicates cathode In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 5. DO-41 (Plastic) dimensions Dimensions Ref. 3 Max. Min. Max. A 4.07 5.20 0.160 0.
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1N5817, 1N5818, 1N5819 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.