S1DLWH Equivalent & Substitute Parts

Part Overview

The S1DLWH is a 1A, 200V standard recovery rectifier diode manufactured by Taiwan Semiconductor Corporation. This surface mount component is housed in an SOD-123W package and is designed for general-purpose rectification applications. The part maintains Active product status and carries AEC-Q101 automotive qualification, making it suitable for automotive and industrial applications requiring reliable DC reverse voltage blocking and forward current rectification.

Identifying equivalent and substitute parts is necessary when managing inventory constraints, addressing supply chain disruptions, or optimizing procurement across multiple suppliers while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

S1DLWH

Taiwan Semiconductor CorporationIn Stock: 957S1DLWH Datasheet

Current PartRFQ

S1DLW RVG

Taiwan Semiconductor CorporationIn Stock: 8939S1DLW RVG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S1DLWH are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 1 µA @ 200 V

Mechanical Parameters:

• Package / Case: SOD-123W
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 175°C

Compliance Parameters:

• Technology: Standard
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all these criteria are classified as direct parametric equivalents and may be substituted without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

The S1DLW RVG is a direct parametric equivalent to the S1DLWH. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, mechanical packaging, and compliance certifications.

Selection Basis:

Both parts maintain Active product status, ensuring continued availability and manufacturing support. Both are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements. The identical operating temperature range (-55°C to 175°C) ensures thermal performance parity across all application environments.

The S1DLW RVG currently maintains higher inventory availability (8,845 pieces) compared to the S1DLWH (939 pieces), making it suitable for procurement when supply optimization is required. No circuit modifications, thermal analysis adjustments, or performance re-qualification are necessary when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can the S1DLW RVG be used as a direct replacement for the S1DLWH in existing designs?

A: Yes. The S1DLW RVG meets all electrical and mechanical parameters of the S1DLWH. Both parts share identical voltage ratings (200V DC reverse), current ratings (1A average rectified), forward voltage characteristics (1.1V @ 1A), recovery speed (Standard >500ns), and package specifications (SOD-123W surface mount). No circuit redesign is required.

Q: Are there any differences in compliance or qualification between these parts?

A: Both parts are ROHS3 compliant and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Both maintain Active product status. The S1DLWH carries AEC-Q101 automotive qualification; this specification is not listed for the S1DLW RVG in the provided data. Applications requiring explicit AEC-Q101 qualification should verify this requirement with the manufacturer.

Q: What is the primary reason to substitute the S1DLWH with the S1DLW RVG?

A: Inventory availability and supply chain optimization. The S1DLW RVG maintains significantly higher stock levels (8,845 pieces versus 939 pieces), reducing procurement lead times and supporting higher-volume production schedules while maintaining identical performance characteristics.

Q: Are the SOD-123W packages physically identical?

A: Yes. Both parts use the SOD-123W surface mount package, ensuring identical PCB footprints, reflow soldering profiles, and automated assembly compatibility. No changes to manufacturing processes or assembly equipment are necessary.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution eligibility is determined by matching: DC reverse voltage (200V), average rectified current (1A), forward voltage drop (1.1V @ 1A), recovery speed (Standard >500ns), and reverse leakage current (1µA @ 200V). All these parameters are identical between the S1DLWH and S1DLW RVG.