RL104-N-0-3-AP Equivalent & Substitute Parts

Part Overview

The RL104-N-0-3-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400V DC reverse voltage and 1A average rectified current in an axial through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The part operates across a junction temperature range of -55°C to 150°C and complies with RoHS3 standards.

Substiute Parts

RL104-N-0-3-AP

Micro Commercial CoIn Stock: 1127RL104-N-0-3-AP Datasheet

Current PartRFQ

AU02V0

Sanken Electric USA Inc.In Stock: 818AU02V0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL104-N-0-3-AP is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 400V to ensure equivalent circuit protection and reliability.

Current Rating: The substitute part current rating must equal or exceed 1A average rectified current to support the same load conditions.

Package Type: Both the main part and substitute must use axial through-hole packaging to ensure mechanical compatibility with existing PCB layouts and assembly processes.

Forward Voltage: The forward voltage drop must remain within acceptable limits for circuit operation; the main part specifies 1.1V maximum at 1A.

Reverse Leakage: Leakage current characteristics must be comparable to prevent circuit performance degradation.

Temperature Range: Operating temperature specifications must support the application's thermal environment.

The AU02V0 from Sanken Electric USA Inc. qualifies as a substitute based on matching voltage and package requirements, though with a reduced current rating of 800mA and different recovery speed characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AU02V0 is an active substitute for the obsolete RL104-N-0-3-AP based on matching voltage rating (400V) and package configuration (axial through-hole). Both components comply with RoHS standards and share identical moisture sensitivity levels (MSL 1 - Unlimited).

Product Status Consideration: The RL104-N-0-3-AP is obsolete, making the AU02V0 the appropriate choice for new designs and ongoing procurement. The AU02V0 maintains active manufacturing status with confirmed inventory availability.

Compliance Alignment: Both parts carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, ensuring regulatory consistency in supply chain documentation.

Application-Specific Evaluation: Selection between these parts depends on circuit current requirements. Applications operating at or below 800mA average rectified current can utilize the AU02V0 without derating. Applications requiring the full 1A rating must either source remaining RL104-N-0-3-AP inventory or redesign circuits to accommodate the lower current rating of the AU02V0.

Frequently Asked Questions (FAQ)

Q: Can the AU02V0 directly replace the RL104-N-0-3-AP in all applications?

A: Direct replacement is possible only in applications where the average rectified current does not exceed 800mA. The AU02V0 is rated for 800mA versus the RL104-N-0-3-AP's 1A rating. Both parts share identical 400V voltage ratings and axial through-hole packaging, ensuring mechanical and electrical compatibility within current limits.

Q: What is the impact of the higher forward voltage drop in the AU02V0?

A: The AU02V0 exhibits a forward voltage of 1.3V at 800mA compared to the RL104-N-0-3-AP's 1.1V at 1A. This 0.2V difference increases power dissipation in the diode. Circuit designs sensitive to forward voltage characteristics must account for this difference in thermal and voltage drop calculations.

Q: Why does the AU02V0 have faster recovery characteristics?

A: The AU02V0 is classified as fast recovery (≤500ns) with a specified reverse recovery time of 400ns, compared to the RL104-N-0-3-AP's standard recovery (>500ns). Faster recovery reduces switching losses and is generally beneficial in high-frequency applications. This difference does not prevent substitution but may improve circuit performance in switching applications.

Q: Are there temperature range limitations with the AU02V0?

A: The AU02V0 operates from -40°C to 150°C, compared to the RL104-N-0-3-AP's -55°C to 150°C range. Applications requiring operation below -40°C junction temperature cannot use the AU02V0. Standard industrial and consumer applications typically operate within the AU02V0's temperature range.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both the RL104-N-0-3-AP and AU02V0 comply with RoHS standards and carry identical ECCN and HTSUS classifications. Both maintain MSL 1 (Unlimited) moisture sensitivity levels. Regulatory documentation and supply chain compliance are equivalent between the two parts.

Q: What is the significance of the higher reverse leakage current in the AU02V0?

A: The AU02V0 exhibits 10µA reverse leakage at 400V compared to the RL104-N-0-3-AP's 5µA. This doubling of leakage current is within acceptable ranges for general-purpose rectifier applications but may impact circuits with stringent leakage requirements, such as precision analog circuits or high-impedance applications.