S3AB General Purpose Rectifier Diode 50V 3A DO-214AA Equivalent & Substitute Parts

Part Overview

The S3AB is a general purpose rectifier diode rated for 50V DC reverse voltage and 3A average rectified current in a surface mount DO-214AA (SMB) package. This component is designed for standard recovery applications requiring reliable rectification in compact form factors. The main S3AB variant from Taiwan Semiconductor Corporation is currently active in production with 2400 units in stock. Alternative variants and cross-manufacturer equivalents are available to support design flexibility and supply chain continuity.

Substiute Parts

S3AB

Taiwan Semiconductor CorporationIn Stock: 2505S3AB Datasheet

Current PartRFQ

S3AB R5G

Taiwan Semiconductor CorporationIn Stock: 1192S3AB R5G Datasheet

Parametric EquivalentRFQ

S3ABHR5G

Taiwan Semiconductor CorporationIn Stock: 1859S3ABHR5G Datasheet

Parametric EquivalentRFQ

S3AB

Diodes IncorporatedIn Stock: 2498S3AB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S3AB rectifier diode is determined by the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 3 A
• Reverse Recovery Time (trr): 1.5 µs (within standard tolerance)
• Current - Reverse Leakage @ Vr: 10 µA @ 50 V

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

• Technology: Standard
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts S3AB R5G and S3ABHR5G from Taiwan Semiconductor Corporation meet all electrical and mechanical requirements. Both variants maintain identical electrical specifications and package configuration. The S3AB variant from Diodes Incorporated exhibits a minor deviation in reverse recovery time (2 µs versus 1.5 µs) and carries an obsolete product status, limiting its suitability for new designs.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: S3AB (Taiwan Semiconductor Corporation)

The S3AB from Taiwan Semiconductor Corporation is the recommended primary choice for new designs and production applications. This variant maintains active product status, ensuring long-term availability and supply chain stability. Full ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for commercial and industrial applications. Current inventory of 2400 units supports immediate procurement needs.

Secondary Selection: S3AB R5G or S3ABHR5G (Taiwan Semiconductor Corporation)

Both S3AB R5G and S3ABHR5G variants provide complete electrical and mechanical equivalence to the primary S3AB part. These alternatives are suitable for applications where the primary variant is unavailable. Both maintain identical electrical specifications, package configuration, and compliance certifications. S3ABHR5G offers higher current inventory (1797 units) compared to S3AB R5G (1154 units). Both variants are discontinued at DiGi Electronics, indicating limited future availability.

Not Recommended: S3AB (Diodes Incorporated)

The S3AB from Diodes Incorporated carries an obsolete product status and exhibits a reverse recovery time specification of 2 µs, deviating from the 1.5 µs standard. This variant is unsuitable for new designs and should not be selected for production applications.

Frequently Asked Questions (FAQ)

Q: Can S3AB R5G be used as a direct replacement for the primary S3AB?

A: Yes. S3AB R5G from Taiwan Semiconductor Corporation provides complete parametric equivalence. All electrical specifications, including voltage rating, current capacity, forward voltage, and reverse recovery time, are identical. The package configuration (DO-214AA, SMB) and mounting type (surface mount) are unchanged. The primary difference is packaging format (cut tape versus bulk) and product status (discontinued versus active).

Q: What is the difference between S3AB R5G and S3ABHR5G?

A: Both variants are parametrically identical. All electrical specifications, thermal ratings, and package configurations match exactly. The designation difference reflects internal manufacturing or distribution variants. Both are suitable for equivalent applications.

Q: Why is the Diodes Incorporated S3AB not recommended as a substitute?

A: The Diodes Incorporated S3AB exhibits a reverse recovery time of 2 µs, compared to 1.5 µs for Taiwan Semiconductor variants. This parameter difference affects switching performance and may impact circuit behavior in time-sensitive applications. Additionally, the part carries an obsolete product status, limiting future availability and support.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts, including S3AB R5G, S3ABHR5G, and the primary S3AB from Taiwan Semiconductor Corporation, are ROHS3 compliant. The Diodes Incorporated variant is also ROHS3 compliant but carries obsolete status.

Q: Can these diodes be used in high-temperature applications?

A: Yes. All variants support an operating junction temperature range of -55°C to 150°C, enabling deployment in industrial and automotive environments within this thermal envelope.

Q: What is the moisture sensitivity level for these parts?

A: The primary S3AB from Taiwan Semiconductor Corporation has a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Are there any REACH or ECCN restrictions on these parts?

A: No. All variants are REACH unaffected and classified under ECCN EAR99, indicating no export control restrictions for standard commercial applications.