DSB5821 Equivalent & Substitute Parts Reference

Part Overview

The DSB5821, manufactured by Microchip Technology, is a Schottky diode with specifications of 30 V reverse voltage and 3A average rectified current in a through-hole, axial package. Its active product status and availability for immediate use are noted, but the RoHS non-compliance requires the identification of compatible alternative models for applications requiring environmental certifications or compliance. Selecting substitute parts requires strict adherence to electrical and mechanical parameters provided for this product category.

Substiute Parts

DSB5821

Microchip TechnologyIn Stock: 1079DSB5821 Datasheet

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BAT85,113

Nexperia USA Inc.In Stock: 22123BAT85,113 Datasheet

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BAT85,133

Nexperia USA Inc.In Stock: 26801BAT85,133 Datasheet

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SB330-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 5577SB330-E3/54 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for DSB5821 is based strictly on technology type (Schottky), reverse voltage rating (30 V), current capability, forward voltage, recovery speed, reverse leakage current, mounting type, and package format. Environmental compliance (RoHS/REACH) and product status are additional factors for selection under application-specific requirements. Only parts matching or exceeding the required electrical parameters, with the same mounting type and case form factor, are listed as substitutes.

Key parameters:

• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io)
• Voltage - Forward (Vf) (Max) @ If
• Speed
• Current - Reverse Leakage @ Vr
• Mounting Type
• Package / Case
• Operating Temperature - Junction
• RoHS Status

Parameter Comparison

Engineering Selection Recommendations

• DSB5821 is active but RoHS non-compliant.
• BAT85,113 and BAT85,133 are active, RoHS3 compliant, and REACH unaffected, suitable when low current is acceptable.
• SB330-E3/54 is active, RoHS3 compliant, and REACH unaffected, with matching electrical ratings and fast recovery suitable for direct replacement where compliance is needed.
• Only select based on matching voltage rating, current, speed, mounting type, operating temperature, and environmental compliance as explicitly listed.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting Schottky diodes in the DSB5821 category?
A1: Critical parameters include technology type (Schottky), reverse voltage rating (30 V), average rectified current, forward voltage, recovery speed, reverse leakage current, mounting type, package/case, operating temperature range, and RoHS status.

Q2: Can BAT85,113 and BAT85,133 replace DSB5821 in all applications?
A2: BAT85,113 and BAT85,133 match in voltage and package style but have significantly lower average rectified current ratings (200mA vs. 3A). Suitability depends strictly on application current requirements.

Q3: Is SB330-E3/54 a direct substitute for DSB5821?
A3: SB330-E3/54 matches DSB5821 in voltage rating, current rating (3A), speed, and mounting type, and it features RoHS3 compliance. Package style differs (DO-201AD vs. DO-204AL), so verification of mechanical fit is necessary based only on these package types.

Q4: Why is RoHS status important in selecting a substitute diode?
A4: RoHS compliance is mandatory for applications requiring adherence to restricted substance regulations. DSB5821 is non-compliant; SB330-E3/54, BAT85,113, and BAT85,133 are RoHS3 compliant.

Q5: How do package types affect substitution for through-hole Schottky diodes?
A5: Substitutes must have compatible through-hole packages (DO-204AL, DO-41, DO-204AG, DO-34, or DO-201AD) to ensure proper mechanical and electrical integration without modifications. Only packages listed can be considered based on provided parameter data.