Equivalent & Substitute Parts for RW54 (Sanken Electric USA Inc.)

Part Overview

The Sanken Electric USA Inc. RW54 is a Schottky rectifier diode rated for 40 V reverse voltage and 5 A average forward current, housed in an axial through-hole package. With its fast recovery and low forward voltage drop, the RW54 served in power rectification and efficiency-critical designs. This part is classified as obsolete, making it necessary to identify alternative models to address ongoing maintenance, repair, or design applications where direct replacement is required.

Substiute Parts

RW54

Sanken Electric USA Inc.In Stock: 1158RW54 Datasheet

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SB540E-G

Comchip TechnologyIn Stock: 24577SB540E-G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution is determined by matching the electrical parameters, mechanical form factor, and compliance status. For Schottky diodes in the "Diodes, Rectifiers" category, equivalency is defined by the following key parameters:

• Technology: Schottky
• Reverse Voltage (Vr) rating (must be equal or greater)
• Average Rectified Current (Io)
• Forward Voltage Drop (Vf @ If)
• Reverse Leakage Current (@ Vr)
• Speed (Fast Recovery)
• Package / Mounting Type (Through Hole, Axial-compatible)
• Compliance (RoHS, Moisture Sensitivity Level)
• ECCN and HTSUS classification

Parameter Comparison

Engineering Selection Recommendations

The RW54 is classified as obsolete. The SB540E-G is listed as an active part, enabling uninterrupted supply continuity. Both parts hold RoHS compliance and Moisture Sensitivity Level (MSL) 1 (Unlimited), and both are covered under ECCN EAR99 and HTSUS 8541.10.0080. The SB540E-G offers an RoHS3-compliant alternative within the same regulatory framework, supporting substitution in applications where compliance is required.

Frequently Asked Questions (FAQ)

Q1: What are the essential criteria for substituting the RW54 in a design?
A1: The critical criteria are matching Schottky diode technology, equal reverse voltage (40 V), average rectified current (5A), forward voltage rating, recovery speed, package/mounting compatibility, and regulatory compliance.

Q2: Is the SB540E-G compatible mechanically with the RW54?
A2: The SB540E-G uses a DO-201AD axial package, which is within the axial through-hole mounting category, offering direct compatibility from a mechanical mounting perspective.

Q3: Does the substitute SB540E-G meet environmental and compliance standards of the RW54?
A3: Yes, both diodes are RoHS compliant and classified as MSL 1 (Unlimited) and ECCN EAR99, supporting requirements for global compliance and storage.

Q4: Are there electrical parameter differences that should be noticed?
A4: Both diodes are rated at 40 V, 5A, and 550 mV forward voltage at 5A, but the SB540E-G has a reverse leakage current of 500 µA @ 40 V, which is higher than the RW54’s 1 µA @ 40 V. All other critical ratings align as per provided parameters.

Q5: How does the operating temperature range affect substitution?
A5: The RW54 is rated from -40°C to 150°C, while the SB540E-G supports -65°C to 125°C. This difference may be relevant for designs operating near temperature extremes as specified. All temperature data is based strictly on the provided values.

Q6: Is there an impact in sourcing or supply chain due to product status?
A6: The RW54 is obsolete, while the SB540E-G is active and available in inventory, enabling continued sourcing and production support.