S1AL RVG Equivalent & Substitute Parts

Part Overview

The S1AL RVG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 1 A average rectified current. This component is packaged in Sub SMA (DO-219AB) surface mount configuration and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance is required within specified parameter tolerances, or when alternative packaging configurations are necessary for circuit board redesign, supply chain optimization, or manufacturing process changes.

Substiute Parts

S1AL RVG

Taiwan Semiconductor CorporationIn Stock: 814S1AL RVG Datasheet

Current PartRFQ

S1DLW RVG

Taiwan Semiconductor CorporationIn Stock: 8939S1DLW RVG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S1AL RVG is determined by the following electrical and mechanical criteria:

Current Rating Compatibility: The substitute part must support the 1 A average rectified current requirement.

Forward Voltage Characteristics: The substitute part must maintain forward voltage drop at 1.1 V maximum at 1 A forward current to ensure circuit performance consistency.

Reverse Recovery Behavior: The substitute part must operate within standard recovery classification (>500 ns, >200 mA) to maintain switching characteristics.

Temperature Range: The substitute part must support the full operating junction temperature range of -55°C to 175°C.

Compliance Requirements: The substitute part must maintain ROHS3 compliance and REACH unaffected status.

Reverse Voltage Rating: The substitute part may exceed the 50 V reverse voltage specification, as higher voltage ratings are backward compatible in applications not requiring voltage derating.

Package Configuration: The substitute part may utilize alternative surface mount packages (SOD-123W versus Sub SMA) provided the circuit board layout accommodates the physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

S1DLW RVG Substitution Criteria:

The S1DLW RVG is a qualified substitute for the S1AL RVG based on the following engineering parameters:

Both parts maintain identical current ratings (1 A average rectified current) and forward voltage characteristics (1.1 V maximum at 1 A), ensuring functional equivalence in rectification performance.

Both parts operate across the full temperature range of -55°C to 175°C, supporting identical thermal operating conditions.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.

The S1DLW RVG provides a higher reverse voltage rating (200 V versus 50 V), which is compatible with applications designed for the 50 V specification and provides additional voltage margin in circuits operating below the 50 V threshold.

The S1DLW RVG utilizes SOD-123W packaging instead of Sub SMA (DO-219AB), requiring circuit board layout modification. Physical footprint differences necessitate PCB redesign validation.

Both parts are manufactured by Taiwan Semiconductor Corporation and classified as Active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the S1DLW RVG replace the S1AL RVG in all applications?

A: The S1DLW RVG is electrically compatible for applications requiring 50 V or lower reverse voltage operation, as the 200 V rating provides backward compatibility. However, the package change from Sub SMA to SOD-123W requires circuit board layout modification and physical footprint validation.

Q: What are the key electrical differences between these parts?

A: The primary electrical difference is the reverse voltage rating: S1AL RVG is rated 50 V, while S1DLW RVG is rated 200 V. Forward voltage drop, current rating, and temperature range are identical. Reverse leakage current is lower in the S1DLW RVG (1 µA at 200 V versus 5 µA at 50 V).

Q: Are both parts RoHS compliant?

A: Yes, both the S1AL RVG and S1DLW RVG are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the impact of package change from Sub SMA to SOD-123W?

A: The package change requires circuit board redesign, including footprint modification, trace routing adjustment, and physical placement validation. Component density and thermal dissipation characteristics may differ between packages.

Q: Do both parts support the same operating temperature range?

A: Yes, both parts operate across the identical junction temperature range of -55°C to 175°C, supporting equivalent thermal performance in circuit applications.

Q: What is the moisture sensitivity classification for both parts?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.