S2A General Purpose Rectifier Diode 50V 2A DO-214AA Equivalent & Substitute Parts

Part Overview

The S2A is a general purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50V DC reverse voltage and 2A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status with 812 pieces currently in stock as new original inventory.

The S2A serves as a standard recovery rectifier diode suitable for general purpose applications requiring moderate voltage and current ratings. Substitute parts become necessary when the primary part number reaches end-of-life status, experiences supply constraints, or when alternative packaging formats are required for manufacturing processes.

Substiute Parts

S2A

Taiwan Semiconductor CorporationIn Stock: 875S2A Datasheet

Current PartRFQ

S2A R5G

Taiwan Semiconductor CorporationIn Stock: 1057S2A R5G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S2A rectifier diode is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) Maximum: 50V
• Current - Average Rectified (Io): 2A
• Voltage - Forward (Vf) Maximum @ If: 1.15V @ 2A
• Reverse Recovery Time (trr): 1.5µs
• Current - Reverse Leakage @ Vr: 1µA @ 50V
• Capacitance @ Vr, F: 30pF @ 4V, 1MHz
• Operating Temperature - Junction: -55°C to 150°C
• Technology: Standard Recovery >500ns, >200mA (Io)

Mechanical Equivalence Criteria:

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

The substitute part S2A R5G maintains identical electrical specifications and package configuration as the main part number S2A. The primary distinction is packaging format: S2A R5G is supplied in Cut Tape (CT) format, whereas the main part number S2A uses standard packaging. Both parts are manufactured by Taiwan Semiconductor Corporation and carry identical performance ratings.

Parameter Comparison

Engineering Selection Recommendations

S2A (Main Part Number): The S2A maintains Active product status with current inventory availability of 812 pieces as new original stock. This part number is recommended for new designs and applications where long-term supply continuity is required. Full compliance with ROHS3 and REACH regulations is confirmed.

S2A R5G (Substitute Part Number): The S2A R5G is electrically and mechanically equivalent to the main part number S2A across all specified parameters. However, this part number is listed as Discontinued at DiGi Electronics. The S2A R5G is supplied in Cut Tape (CT) packaging format, which differs from the standard packaging of the main part. This substitute is suitable for applications where Cut Tape format is compatible with manufacturing processes and where existing inventory of this variant is available. ROHS3 and REACH compliance status is identical to the main part.

Selection between these part numbers should be based on packaging format requirements and current inventory availability. Both parts deliver identical electrical performance and thermal characteristics within the specified operating range of -55°C to 150°C junction temperature.

Frequently Asked Questions (FAQ)

Q: Can S2A R5G be used as a direct replacement for S2A in all applications?

A: Yes, from an electrical and mechanical standpoint. Both parts are identical in voltage rating (50V), current rating (2A), forward voltage drop (1.15V @ 2A), reverse recovery time (1.5µs), and package type (DO-214AA, SMB). The primary difference is packaging format: S2A R5G uses Cut Tape (CT) format while S2A uses standard packaging. Compatibility depends on whether your assembly process can accommodate Cut Tape format.

Q: What does "Discontinued at DiGi Electronics" mean for S2A R5G?

A: This designation indicates that S2A R5G is no longer actively stocked or distributed through DiGi Electronics as a supplier channel. However, this status does not affect the technical specifications or performance of the part itself. Availability through alternative distribution channels may vary.

Q: Are there any compliance differences between S2A and S2A R5G?

A: No. Both parts carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance is equivalent across both part numbers.

Q: What is the significance of the DO-214AA (SMB) package for these diodes?

A: DO-214AA, also designated as SMB (Surface Mount Body), is a standardized surface mount package for rectifier diodes. Both S2A and S2A R5G use this identical package, ensuring mechanical and thermal compatibility in PCB layouts. The package supports automated assembly processes and provides efficient thermal dissipation for the 2A current rating.

Q: How do the electrical parameters of these diodes affect circuit design?

A: The 50V reverse voltage rating establishes the maximum voltage the diode can withstand in reverse bias. The 2A average rectified current rating defines the maximum continuous forward current. The 1.15V forward voltage drop at 2A determines power dissipation and voltage regulation characteristics. The 1.5µs reverse recovery time affects switching speed and is relevant for high-frequency applications. These parameters collectively determine suitability for specific rectification, protection, or switching applications.

Q: What is the operating temperature range, and how does it affect part selection?

A: Both parts operate across a junction temperature range of -55°C to 150°C. This wide range supports applications in industrial, automotive, and consumer environments. The maximum junction temperature of 150°C establishes thermal design limits for PCB layout and thermal management considerations.