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Product Detailed Parameters
- Description：1A 20V TH RECTIFIER-SCHOTTKY (>=
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Box
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：20 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：450 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：1 mA @ 20 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-41
- Operating Temperature - Junction：-65°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N5817 BK TIN/LEAD is a Schottky barrier rectifier diode housed in the DO-41 axial lead package. It features a maximum repetitive peak reverse voltage of 20 V and an average forward rectified current rating of 1 A. The device utilizes silicon technology with a metal-semiconductor junction construction designed for low forward voltage drop and high switching efficiency. It supports a maximum instantaneous forward surge current of 25 A and operates within a junction temperature range of -65°C to +200°C.
Feature Summary
- Schottky barrier construction provides low forward voltage drop and minimal switching losses
- Epitaxial silicon design with guard ring structure for enhanced reliability
- High surge current capability suitable for demanding power applications
- Plastic molding material carries UL recognition (94V-0)
Applications
- Low voltage, high frequency inverters
- Free wheeling circuits
- Polarity protection applications
Procurement Notes
Verify that the specific ordering suffix matches the required tin/lead terminal finish and bulk packaging format. Confirm RoHS compliance status as tin/lead variants may differ from lead-free equivalents. Ensure the DO-41 through-hole package aligns with existing PCB footprints. Cross-reference the manufacturer part number against legacy component lists if replacing discontinued units.
Selection Notes
Select this component when a 20 V reverse voltage rating and 1 A continuous current capacity are required. The DO-41 package is appropriate for through-hole mounting where space allows. Consider the operating temperature range up to 200°C for high-thermal environments. Verify that the low forward voltage characteristic meets the efficiency requirements of the target circuit design.
Part Context
This device belongs to the standard 1N581x series of Schottky rectifiers, which are widely used in general-purpose power conversion. Central Semiconductor manufactures this part to support legacy systems and maintain supply continuity for components that other manufacturers have discontinued. It serves as a direct replacement for original 1N5817 specifications in established designs.
Replacement Considerations
Direct substitutes include the 1N5817 from other manufacturers such as ON Semiconductor or STMicroelectronics. Verify pinout compatibility and thermal characteristics before substitution. Ensure the replacement device meets the same 20 V and 1 A ratings.
