S5ALHE3-TP Equivalent & Substitute Parts

Part Overview

The S5ALHE3-TP is a fast recovery rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 5 A average rectified current in a surface mount SMC (DO-214AB) package. This component is classified as obsolete, indicating discontinued production and limited availability. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure procurement of functionally compatible alternatives for new production runs or field replacements.

Substiute Parts

S5ALHE3-TP

Micro Commercial CoIn Stock: 1118S5ALHE3-TP Datasheet

Current PartRFQ

S5JLHE3-TP

Micro Commercial CoIn Stock: 3915S5JLHE3-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S5ALHE3-TP is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Package / Case: DO-214AB, SMC (identical physical and electrical interface)
• Mounting Type: Surface Mount (identical assembly process)
• Current - Average Rectified (Io): 5 A (identical current rating)
• Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 5 A (identical forward voltage characteristic)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (identical switching performance)
• Capacitance @ Vr, F: 40pF @ 4V, 1MHz (identical junction capacitance)
• Operating Temperature - Junction: -55°C ~ 150°C (identical thermal range)

Allowable Variation:

• Voltage - DC Reverse (Vr) (Max): Substitute parts may exceed the 50 V rating, provided the higher voltage rating does not introduce incompatibility with the application circuit design.
• Current - Reverse Leakage @ Vr: Substitute parts must maintain leakage specifications at their respective voltage ratings.

The S5JLHE3-TP meets all mandatory compatibility criteria and represents a direct functional substitute with enhanced voltage rating capability.

Parameter Comparison

Engineering Selection Recommendations

The S5JLHE3-TP is the manufacturer-recommended substitute for the obsolete S5ALHE3-TP. Selection of this substitute is supported by the following factors:

Product Status: The S5JLHE3-TP is in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete S5ALHE3-TP.

Compliance and Certification: The S5JLHE3-TP carries AEC-Q101 automotive qualification and ROHS3 compliance, providing enhanced reliability documentation and regulatory alignment for applications requiring these certifications.

Electrical Compatibility: All critical electrical parameters match the original part specification. The elevated voltage rating (600 V versus 50 V) does not compromise functionality in applications designed for the 50 V part, as the substitute operates within the same forward voltage and switching speed characteristics.

Packaging and Assembly: Identical DO-214AB SMC package and surface mount configuration ensure direct replacement without PCB redesign or assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can the S5JLHE3-TP be used as a direct replacement for the S5ALHE3-TP in all applications?

A: The S5JLHE3-TP is electrically and mechanically compatible with the S5ALHE3-TP for applications operating at or below 50 V. The higher voltage rating of the substitute does not introduce incompatibility. Verify that the application circuit design does not depend on the specific 50 V reverse voltage rating of the original part.

Q: What is the primary difference between these two parts?

A: The primary difference is the maximum DC reverse voltage rating: S5ALHE3-TP is rated for 50 V, while S5JLHE3-TP is rated for 600 V. All other electrical characteristics, including forward voltage, current rating, switching speed, and capacitance, are identical.

Q: Are there packaging differences between the S5ALHE3-TP and S5JLHE3-TP?

A: No. Both parts use the DO-214AB SMC surface mount package. No PCB layout or assembly process changes are required for substitution.

Q: Why is the S5JLHE3-TP recommended over other potential substitutes?

A: The S5JLHE3-TP is the manufacturer-recommended substitute specified by Micro Commercial Co. It maintains identical electrical performance characteristics while offering active production status and enhanced compliance certifications (AEC-Q101, ROHS3).

Q: What is the inventory status of the substitute part?

A: The S5JLHE3-TP has 3842 pieces in stock as new original inventory, compared to 1034 pieces for the obsolete S5ALHE3-TP. This ensures reliable procurement availability.

Q: Does the S5JLHE3-TP require any design modifications for use in existing circuits?

A: No design modifications are required. The substitute part operates with identical forward voltage (1.15 V @ 5 A), switching speed (fast recovery ≤ 500ns), and thermal range (-55°C ~ 150°C) as the original part.