RS3M R6 Equivalent & Substitute Parts

Part Overview

The RS3M R6 is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. Manufactured by Taiwan Semiconductor Corporation, this component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing design requirements and procurement needs. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating surface mount assembly processes.

Substiute Parts

RS3M R6

Taiwan Semiconductor CorporationIn Stock: 824RS3M R6 Datasheet

Current PartRFQ

RS3MH

Taiwan Semiconductor CorporationIn Stock: 3824RS3MH Datasheet

Parametric EquivalentRFQ

RS3MC

MDDIn Stock: 3843RS3MC Datasheet

Parametric EquivalentRFQ

RS3MC-HF

Comchip TechnologyIn Stock: 915RS3MC-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RS3M R6 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 1000 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 3 A
• Reverse Recovery Time (trr): 500 ns
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C

All identified substitute parts meet these mandatory criteria. Variations in reverse leakage current, capacitance, and manufacturer qualification levels do not preclude substitution when the primary electrical and thermal specifications are maintained. Packaging format (Tape & Reel versus bulk) represents a procurement variable rather than a functional substitution barrier.

Parameter Comparison

Engineering Selection Recommendations

RS3MH (Taiwan Semiconductor Corporation)

The RS3MH is an active product manufactured by Taiwan Semiconductor Corporation with AEC-Q101 automotive qualification. This part maintains identical electrical specifications to the RS3M R6 across all critical parameters. The automotive-grade qualification and active product status provide supply chain continuity. Reverse leakage current matches the original specification at 10 µA @ 1000 V. ROHS3 compliance and unlimited MSL rating align with the original part's environmental certifications.

RS3MC (MDD)

The RS3MC is an active product from MDD with identical voltage, current, and thermal ratings. This part exhibits lower reverse leakage current (5 µA @ 1000 V) compared to the original specification, representing improved performance in this parameter. Capacitance specification is provided (60 pF @ 4V, 1MHz), whereas the original part does not specify this parameter. RoHS compliance is confirmed. Active product status ensures availability.

RS3MC-HF (Comchip Technology)

The RS3MC-HF is an active product from Comchip Technology with identical core electrical specifications. This part features the lowest reverse leakage current (5 µA @ 1000 V) and lowest capacitance (40 pF @ 4V, 1MHz) among the substitute options. ROHS3 compliance and unlimited MSL rating match the original part. Active product status supports procurement continuity.

All three substitute parts are functionally equivalent to the RS3M R6 for applications requiring 1000 V, 3 A fast recovery rectifier diodes in surface mount DO-214AB packaging. Selection among these alternatives should be based on supplier availability, lead time, and cost considerations, as electrical performance is equivalent across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the RS3MH be used as a direct replacement for the RS3M R6?

A: Yes. The RS3MH maintains identical specifications for voltage rating (1000 V), current rating (3 A), forward voltage drop (1.3 V @ 3 A), reverse recovery time (500 ns), and operating temperature range (-55°C to 150°C). Both parts use the DO-214AB (SMC) surface mount package. The RS3MH is manufactured by the same supplier (Taiwan Semiconductor Corporation) and carries AEC-Q101 automotive qualification.

Q: What is the difference between RS3MC and RS3MC-HF?

A: Both parts meet the mandatory electrical specifications for substitution. The primary differences are reverse leakage current and capacitance specifications. RS3MC-HF exhibits lower reverse leakage current (5 µA versus 10 µA @ 1000 V) and lower capacitance (40 pF versus 60 pF @ 4V, 1MHz). These represent performance improvements rather than functional differences for standard rectifier applications.

Q: Are all substitute parts available in the same packaging format as the RS3M R6?

A: The RS3M R6 is supplied in bulk packaging. The substitute parts RS3MH, RS3MC, and RS3MC-HF are available in Tape & Reel (TR) format. Both packaging formats contain identical components; the difference is in the delivery and handling method. Tape & Reel format is standard for automated assembly processes.

Q: Does the automotive qualification of RS3MH affect its use in non-automotive applications?

A: No. AEC-Q101 qualification indicates that the RS3MH meets automotive industry reliability and testing standards. This qualification does not restrict use in non-automotive applications; it confirms that the part meets or exceeds standard reliability requirements applicable to all applications.

Q: Can I substitute RS3MC from MDD for the original RS3M R6 in a design already qualified with the original part?

A: Substitution of components in qualified designs requires design review and validation according to your organization's change control procedures. From an electrical specification standpoint, the RS3MC is functionally equivalent. However, design qualification decisions depend on your specific application requirements, supplier approval processes, and regulatory requirements.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates that the diode is classified as a fast recovery rectifier with a reverse recovery time of 500 nanoseconds or less when the reverse current exceeds 200 milliamps. This classification is maintained across all substitute parts and the original RS3M R6.

Q: Are there any thermal management differences between the substitute parts?

A: All parts share identical operating temperature ranges (-55°C to 150°C junction temperature). Thermal management in surface mount applications is determined by PCB design, copper area, and thermal vias rather than by differences between these equivalent diodes. No thermal management modifications are required when substituting among these parts.