SMD38PL-TP Equivalent & Substitute Parts

Part Overview

The SMD38PL-TP is a Schottky diode rated for 80 V DC reverse voltage with 3 A average rectified current in a surface mount SOD-123FL package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part exhibits fast recovery characteristics suitable for rectification applications requiring low forward voltage drop and rapid switching performance.

Substiute Parts

SMD38PL-TP

Micro Commercial CoIn Stock: 963SMD38PL-TP Datasheet

Current PartRFQ

SMD310PL-TP

Micro Commercial CoIn Stock: 14205SMD310PL-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMD38PL-TP is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Package type: SOD-123F (surface mount)
• Technology: Schottky diode
• Current rating: 3 A average rectified current
• Forward voltage: 850 mV @ 3 A
• Speed classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating temperature range: -55°C ~ 150°C
• Mounting type: Surface mount

Allowable Substitution Parameter:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 80 V

The SMD310PL-TP qualifies as a substitute because it maintains all mandatory compatibility criteria while providing a higher reverse voltage rating (100 V), which is acceptable for applications designed for the 80 V rated component.

Parameter Comparison

Engineering Selection Recommendations

The SMD310PL-TP serves as the primary substitute for the obsolete SMD38PL-TP. Selection of this substitute is supported by the following factors:

Product Status: The SMD310PL-TP maintains active product status with substantial inventory availability (14,150 pieces), ensuring procurement continuity and long-term supply reliability compared to the obsolete SMD38PL-TP.

Regulatory Compliance: Both components maintain identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity classification (MSL 1), ensuring no additional qualification or documentation requirements for substitution.

Electrical Performance: The SMD310PL-TP provides equivalent electrical performance across all critical parameters including forward voltage, reverse leakage, switching speed, and operating temperature range. The increased reverse voltage rating (100 V versus 80 V) presents no compatibility issues for applications designed around the original 80 V specification.

Physical Compatibility: Identical package designation (SOD-123F) and mounting type (surface mount) ensure direct board-level compatibility without PCB redesign or assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can the SMD310PL-TP be used as a direct replacement for SMD38PL-TP in existing designs?

A: Yes. The SMD310PL-TP is electrically and mechanically compatible with the SMD38PL-TP. Both components share identical forward voltage, current rating, switching speed, package type, and operating temperature range. The higher reverse voltage rating of the SMD310PL-TP (100 V versus 80 V) does not create compatibility issues for applications designed for 80 V operation.

Q: What is the significance of the higher voltage rating on the SMD310PL-TP?

A: The SMD310PL-TP is rated for 100 V DC reverse voltage compared to the SMD38PL-TP's 80 V rating. This higher rating provides additional voltage margin and does not negatively impact performance in applications requiring 80 V or lower reverse voltage operation.

Q: Are there any package or mounting differences between these parts?

A: No. Both the SMD38PL-TP and SMD310PL-TP use the SOD-123F surface mount package. They are mechanically identical and require no changes to PCB layout, footprint, or assembly procedures.

Q: Do these parts have different compliance or regulatory requirements?

A: No. Both components maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity classification. No additional qualification or documentation is required for substitution.

Q: Why is the SMD38PL-TP listed as obsolete?

A: The SMD38PL-TP is classified as obsolete, indicating it is no longer in active production. The SMD310PL-TP, with active product status and higher inventory availability, provides continuity for new designs and ongoing production requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching package type (SOD-123F), technology (Schottky), current rating (3 A), forward voltage (850 mV @ 3 A), switching speed (fast recovery ≤ 500ns), operating temperature range (-55°C ~ 150°C), and mounting type (surface mount). The reverse voltage rating must be equal to or greater than the original specification (80 V minimum).