SMD14HE-TP Equivalent & Substitute Parts

Part Overview

The SMD14HE-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 40V DC reverse voltage and 1A average rectified current in a surface mount SOD-123HE package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Active equivalent and parametric substitute options are available from multiple manufacturers to maintain design continuity.

Substiute Parts

SMD14HE-TP

Micro Commercial CoIn Stock: 1013SMD14HE-TP Datasheet

Current PartRFQ

SM5819PL-TP

Micro Commercial CoIn Stock: 97710SM5819PL-TP Datasheet

SimilarRFQ

ACDBMT140-HF

Comchip TechnologyIn Stock: 222551ACDBMT140-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMD14HE-TP are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 1 A
• Technology: Schottky
• Mounting Type: Surface Mount
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature Range: Minimum -55°C to maximum 125°C
• RoHS3 Compliance

Substitute Categories:

Similar Manufacturer Part (Direct Equivalent): SM5819PL-TP from Micro Commercial Co maintains identical voltage and current ratings with the same Schottky technology and fast recovery speed. This part is active and available in high volume. Package variation (SOD-123FL vs. SOD-123HE) represents a minor physical footprint difference within the SOD-123 family, both suitable for surface mount applications.

Parametric Equivalent (Cross-Manufacturer): ACDBMT140-HF from Comchip Technology provides identical electrical specifications with matching voltage, current, and temperature ratings. This part includes automotive-grade qualification (AEC-Q101) and is available in high volume. Package designation (SOD-123H) aligns with the original part's mechanical footprint.

Parameter Comparison

Engineering Selection Recommendations

SM5819PL-TP Selection Criteria: This part is recommended for applications requiring continued sourcing from Micro Commercial Co. The SM5819PL-TP maintains identical electrical performance with active product status and substantial inventory availability (97,680 pcs). The SOD-123FL package is mechanically compatible with SOD-123H footprints in standard surface mount applications. Forward voltage specification at 1A (600 mV) is slightly elevated compared to the original part specification at 2A (500 mV), but remains within acceptable operating parameters for 40V/1A rectifier applications. Reverse leakage current is improved at 100 µA versus 500 µA, providing superior performance characteristics. Extended temperature range (-65°C to 125°C) offers additional operational margin.

ACDBMT140-HF Selection Criteria: This part is recommended for applications requiring automotive-grade qualification or cross-manufacturer sourcing. The ACDBMT140-HF provides identical electrical specifications with AEC-Q101 automotive qualification and matching SOD-123H package geometry. Forward voltage specification (500 mV @ 1A) aligns with the original part's performance. Reverse leakage current matches the original specification at 500 µA @ 40V. Extensive inventory availability (222,521 pcs) ensures procurement reliability. This part is suitable for both commercial and automotive applications.

Both substitute parts satisfy RoHS3 compliance and MSL 1 requirements, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SM5819PL-TP replace SMD14HE-TP in existing designs without PCB modification?

A: The SM5819PL-TP uses SOD-123FL packaging while the original uses SOD-123HE. Both packages are within the SOD-123 family with compatible lead spacing and mounting footprints for standard surface mount assembly. PCB layout modifications are not required for this substitution.

Q: What is the difference between SOD-123H and SOD-123F packages?

A: Both are surface mount Schottky diode packages within the SOD-123 family. SOD-123H and SOD-123F represent manufacturer-specific package designations with compatible mechanical and electrical characteristics. Lead spacing and PCB footprint requirements are equivalent for standard surface mount applications.

Q: Is ACDBMT140-HF suitable for non-automotive applications?

A: Yes. ACDBMT140-HF carries AEC-Q101 automotive qualification, which indicates enhanced reliability and quality standards. This qualification does not restrict use to automotive applications; the part is fully suitable for commercial and industrial applications where equivalent or superior performance is beneficial.

Q: How do forward voltage differences affect circuit performance?

A: The SM5819PL-TP specifies 600 mV @ 1A forward voltage compared to the original 500 mV @ 2A. At 1A operating current, the SM5819PL-TP forward voltage is 600 mV. The ACDBMT140-HF specifies 500 mV @ 1A, matching the original specification. For 40V/1A rectifier applications, both substitutes operate within acceptable voltage drop ranges. Circuit designers should verify forward voltage drop impact on specific application requirements.

Q: What does reverse leakage current improvement mean for circuit operation?

A: The SM5819PL-TP exhibits 100 µA reverse leakage at 40V, compared to 500 µA in the original part. Lower reverse leakage current reduces parasitic current paths and improves circuit efficiency, particularly in low-power or precision applications. The ACDBMT140-HF maintains 500 µA reverse leakage, matching the original specification.

Q: Are all three parts RoHS3 compliant?

A: Yes. The SMD14HE-TP (original), SM5819PL-TP, and ACDBMT140-HF are all ROHS3 compliant, ensuring compatibility with RoHS3 manufacturing and environmental requirements.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture-controlled storage or handling. Standard storage conditions are acceptable for all three parts.

Q: Why is the original SMD14HE-TP marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active equivalent parts (SM5819PL-TP and ACDBMT140-HF) provide continued design support and procurement options for new and existing applications.