Equivalent & Substitute Parts for RS3BH

Part Overview

The RS3BH is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 3 A average rectified current. The device is packaged in the DO-214AB (SMC) surface mount configuration and is qualified to AEC-Q101 automotive standards. The RS3BH is currently active in production and maintains full inventory availability.

Substitute parts become necessary when the primary part number reaches end-of-life status, experiences supply constraints, or when alternative packaging formats are required for manufacturing flexibility while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

RS3BH

Taiwan Semiconductor CorporationIn Stock: 985RS3BH Datasheet

Current PartRFQ

RS3B R7G

Taiwan Semiconductor CorporationIn Stock: 1282RS3B R7G Datasheet

Parametric EquivalentRFQ

RS3B V7G

Taiwan Semiconductor CorporationIn Stock: 2175RS3B V7G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RS3BH is permissible with parts that maintain identical electrical specifications across all critical parameters: reverse voltage rating (100 V), average rectified current (3 A), forward voltage drop (1.3 V @ 3 A), reverse recovery time (150 ns), and reverse leakage current (10 µA @ 100 V). All substitute parts must be housed in the DO-214AB (SMC) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts and assembly processes.

The substitute parts identified—RS3B R7G and RS3B V7G—are both manufactured by Taiwan Semiconductor Corporation and share the identical base product designation RS3B. These parts differ only in packaging format (Cut Tape versus Cut Tape & Digi-Reel) and product status at specific distributors, not in electrical performance or physical dimensions. Both substitutes maintain full compliance with ROHS3, AEC-Q101 automotive qualification, and MSL 1 moisture sensitivity requirements.

Parameter Comparison

Engineering Selection Recommendations

The RS3BH remains the primary selection for new designs and active production due to its current active product status and established supply chain. Both RS3B R7G and RS3B V7G are electrically and mechanically equivalent alternatives that maintain full compliance with automotive qualification standards (AEC-Q101) and environmental regulations (ROHS3, REACH Unaffected).

RS3B R7G is supplied in Cut Tape (CT) packaging format and is currently discontinued at DiGi Electronics, making it suitable for applications where tape-and-reel packaging is not required or where alternative distribution channels maintain inventory.

RS3B V7G is supplied in both Cut Tape (CT) and Digi-Reel® formats, offering greater flexibility for high-volume manufacturing environments that require automated reel-fed assembly processes. This part is also discontinued at DiGi Electronics but maintains higher inventory availability through alternative suppliers.

Selection between these substitutes should be based on packaging format requirements and supply chain availability rather than electrical performance, as all three parts are functionally identical within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can RS3B R7G and RS3B V7G be used interchangeably with RS3BH in existing designs?

A: Yes. All three parts share identical electrical specifications (100 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage drop, 150 ns reverse recovery time) and are housed in the same DO-214AB (SMC) surface mount package. Direct substitution is permissible without circuit redesign or PCB layout modification.

Q: What is the difference between RS3B R7G and RS3B V7G?

A: The primary difference is packaging format. RS3B R7G is supplied in Cut Tape (CT) format, while RS3B V7G is available in both Cut Tape (CT) and Digi-Reel® formats. Both parts are electrically identical and maintain the same performance characteristics. The choice between them depends on assembly equipment capabilities and manufacturing volume requirements.

Q: Are all three parts qualified to the same automotive standards?

A: The RS3BH carries explicit AEC-Q101 automotive qualification. RS3B R7G and RS3B V7G do not list AEC-Q101 qualification in their specifications. For applications requiring automotive-grade certification, RS3BH is the specified choice. For non-automotive applications, all three parts meet ROHS3 compliance and MSL 1 moisture sensitivity requirements.

Q: What is the operating temperature range for these diodes?

A: All three parts operate across a junction temperature range of -55°C to 150°C, suitable for industrial and automotive environments.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the reverse recovery time specification?

A: The reverse recovery time (trr) is 150 nanoseconds for all three parts, classifying them as fast recovery diodes with switching speeds suitable for high-frequency rectification applications.