S4A General Purpose Rectifier Diode 50V 4A DO-214AB

Part Overview

The S4A is a general purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the DO-214AB (SMC) package. This component operates at a maximum reverse voltage of 50V with an average rectified current rating of 4A, making it suitable for standard rectification circuits requiring moderate current handling capability.

The S4A maintains Active product status with 781 pieces currently in stock. Identification of equivalent and substitute parts becomes necessary when managing supply chain continuity, addressing inventory constraints, or accommodating design revisions that permit alternative component selection within established electrical and mechanical parameters.

Substiute Parts

S4A

Taiwan Semiconductor CorporationIn Stock: 793S4A Datasheet

Current PartRFQ

S4A V7G

Taiwan Semiconductor CorporationIn Stock: 1990S4A V7G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S4A rectifier diode are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is governed by the following key parameters:

Electrical Parameters:

• Maximum reverse voltage (Vr): 50V
• Average rectified current (Io): 4A
• Forward voltage drop (Vf): 1.15V @ 4A
• Reverse recovery time (trr): 1.5µs
• Reverse leakage current: 10µA @ 50V
• Junction capacitance: 60pF @ 4V, 1MHz

Mechanical Parameters:

• Package type: DO-214AB (SMC)
• Mounting configuration: Surface Mount
• Operating temperature range: -55°C to 150°C

Compliance Parameters:

• Technology classification: Standard
• RoHS3 compliance requirement
• Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all specified parameters within these categories are classified as parametric equivalents and direct substitutes. The S4A V7G variant is identified as a parametric equivalent substitute, sharing identical electrical characteristics and mechanical specifications while maintaining equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The S4A V7G is a parametric equivalent substitute for the S4A general purpose rectifier diode. Both components share identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these parts is determined by availability and product status considerations.

The S4A maintains Active product status with current inventory of 781 pieces. The S4A V7G is listed as Discontinued at DiGi Electronics, indicating reduced availability through standard distribution channels. For applications requiring immediate component procurement, the S4A is the preferred selection due to active status and confirmed stock availability.

Both parts satisfy ROHS3 compliance requirements and carry identical Moisture Sensitivity Level classification (MSL 1 - Unlimited), permitting unrestricted storage and handling without specialized moisture control measures. The REACH Unaffected status applies to both variants, confirming compliance with chemical substance regulations.

Direct substitution between S4A and S4A V7G is permissible in all circuit applications where the specified electrical and mechanical parameters are required, provided that component availability aligns with procurement timelines and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can the S4A V7G be used as a direct replacement for the S4A in existing designs?

A: Yes. The S4A V7G is a parametric equivalent with identical electrical specifications (50V reverse voltage, 4A average rectified current, 1.15V forward voltage drop, 1.5µs reverse recovery time) and mechanical packaging (DO-214AB SMC surface mount). All electrical and thermal characteristics are equivalent, permitting direct substitution in circuit applications.

Q: What is the primary difference between the S4A and S4A V7G?

A: The primary difference is product status. The S4A maintains Active status with confirmed inventory availability. The S4A V7G is Discontinued at DiGi Electronics, indicating limited availability through distribution channels. Electrical and mechanical specifications are identical.

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

A: No. Both the S4A and S4A V7G carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). Both components satisfy the same regulatory and environmental requirements.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean for handling and storage?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions. Standard handling and storage procedures apply without requirement for specialized moisture control, desiccant packaging, or humidity-controlled environments.

Q: Can the S4A be used in applications requiring higher current ratings?

A: No. The S4A is rated for a maximum average rectified current of 4A. Applications requiring higher current capacity require selection of alternative rectifier diodes with higher current ratings. Exceeding the 4A specification will result in component failure.

Q: What is the significance of the 1.5µs reverse recovery time specification?

A: The reverse recovery time (trr) of 1.5µs indicates the time required for the diode to transition from forward conduction to reverse blocking state. This parameter is critical in switching applications and high-frequency circuits. The S4A and S4A V7G are classified as Standard Recovery devices with trr > 500ns, suitable for general purpose rectification applications.

Q: Are the S4A and S4A V7G suitable for high-frequency switching applications?

A: The S4A and S4A V7G are classified as Standard Recovery rectifier diodes with a reverse recovery time of 1.5µs. These components are designed for general purpose rectification applications. Applications requiring fast switching or high-frequency operation may require evaluation of fast recovery or ultrafast recovery diode alternatives.

Q: What is the operating temperature range for the S4A?

A: The S4A operates across a junction temperature range of -55°C to 150°C. This range encompasses typical industrial and commercial operating environments. Thermal management design must ensure that the junction temperature remains within this specified range during normal circuit operation.