RS3M Equivalent & Substitute Parts

Part Overview

The RS3M is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 1000 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as a fast recovery diode with a reverse recovery time of 500 ns, suitable for power supply and switching applications requiring high-voltage rectification. The part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical ratings, package compatibility, and thermal operating range to ensure direct functional interchangeability in circuit designs.

Substiute Parts

RS3M

Taiwan Semiconductor CorporationIn Stock: 3476RS3M Datasheet

Current PartRFQ

RS3M

SMC Diode SolutionsIn Stock: 3440RS3M Datasheet

DirectRFQ

RS3M

SMC Diode SolutionsIn Stock: 3440RS3M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS3M are identified based on the following critical electrical and mechanical parameters:

Voltage Rating: All substitute parts must maintain a maximum DC reverse voltage (Vr) of 1000 V to ensure equivalent reverse bias protection and circuit safety margins.

Current Rating: All substitute parts must support an average rectified current (Io) of 3 A to handle the same load conditions without thermal or reliability degradation.

Package Compatibility: All substitute parts must use the DO-214AB (SMC) surface mount package to ensure mechanical fit, PCB footprint compatibility, and automated assembly compatibility.

Reverse Recovery Time: All substitute parts must maintain a reverse recovery time (trr) of 500 ns or faster to preserve switching performance and minimize switching losses in rectification circuits.

Reverse Leakage Current: All substitute parts must maintain reverse leakage current of 10 µA at 1000 V or lower to ensure equivalent standby power consumption and circuit reliability.

Operating Temperature Range: All substitute parts must support the junction temperature range of -55°C to 150°C to maintain performance across the full application temperature envelope.

Compliance Status: All substitute parts must maintain RoHS3 compliance and MSL 1 rating to ensure regulatory conformance and handling compatibility with existing supply chain processes.

Parameter Comparison

Engineering Selection Recommendations

The RS3M from SMC Diode Solutions is a direct functional equivalent to the RS3M from Taiwan Semiconductor Corporation. Both parts share identical electrical ratings, package specifications, and thermal operating ranges. Selection between these two sources is based on supply chain availability, inventory status, and procurement requirements rather than technical performance differences.

Both parts maintain active product status and full RoHS3 compliance, confirming ongoing manufacturing support and regulatory conformance. The MSL 1 rating on both parts eliminates moisture-related handling constraints and simplifies storage and assembly processes.

When sourcing the RS3M rectifier diode, either manufacturer source is acceptable for direct substitution in applications requiring 1000 V, 3 A surface mount rectification with 500 ns reverse recovery performance. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility and reflect only supplier logistics options.

Frequently Asked Questions (FAQ)

Q: Can the RS3M from SMC Diode Solutions replace the RS3M from Taiwan Semiconductor Corporation in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 1000 V reverse voltage, 3 A current rating, 500 ns reverse recovery time, DO-214AB package, and -55°C to 150°C operating range. Direct substitution is supported without circuit modification.

Q: What determines whether a diode can substitute for the RS3M?

A: Substitution is determined by matching the following parameters: maximum DC reverse voltage (1000 V), average rectified current (3 A), reverse recovery time (500 ns), reverse leakage current (10 µA @ 1000 V), DO-214AB surface mount package, and operating temperature range (-55°C to 150°C). All substitute parts must meet or exceed these specifications.

Q: Are there differences in packaging between the two RS3M sources?

A: The Taiwan Semiconductor Corporation version is supplied in Tape & Reel (TR) format, while the SMC Diode Solutions version is available in Cut Tape (CT) and Digi-Reel® formats. These packaging differences reflect supplier logistics only and do not affect component performance or PCB compatibility.

Q: Do both RS3M sources meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both maintain active product status and support identical regulatory and environmental requirements.

Q: What is the significance of the 500 ns reverse recovery time for the RS3M?

A: The 500 ns reverse recovery time classifies this as a fast recovery diode, enabling efficient switching performance in power supply and rectification circuits. This parameter must be matched in any substitute part to preserve circuit switching characteristics and minimize switching losses.

Q: Can the RS3M be used in applications requiring lower voltage ratings?

A: Yes. The 1000 V rating is a maximum specification. The RS3M can be used in applications with lower reverse voltage requirements. However, substitute parts must maintain the same 1000 V rating to ensure direct interchangeability.