S5A M6G Equivalent & Substitute Parts

Part Overview

The S5A M6G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. Equivalent parts maintain identical electrical specifications and package form factors, while substitute parts provide functional alternatives with comparable or enhanced performance characteristics within the same voltage and current rating class.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	1.15	V @ 5 A
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the S5A M6G is determined by the following critical parameters: voltage rating (50 V minimum), current rating (5 A minimum), package type (DO-214AB/SMC surface mount), forward voltage characteristics, and recovery time classification. Parts are grouped into three categories:

Direct Equivalents maintain all electrical specifications within the same tolerance band and identical package form factor. These parts are interchangeable without circuit redesign.

Parametric Equivalents meet or exceed the voltage and current ratings with compatible package types but may exhibit minor variations in forward voltage or recovery time within acceptable operating ranges.

Similar Parts share the same voltage rating and package family but operate at reduced current ratings (3 A instead of 5 A) or employ different recovery time classifications. These require circuit analysis to confirm suitability for the application.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [µs]	Ir @ Vr [µA]	Package	Product Status
S5A M6G	Taiwan Semiconductor Corporation	50	5	1.15	1.5	10	DO-214AB	Discontinued
S5A	Diotec Semiconductor	50	8	1.1	1.5	10	DO-214AB	Active
S5A V7G	Taiwan Semiconductor Corporation	50	5	1.15	1.5	10	DO-214AB	Discontinued
CGRC501-G	Comchip Technology	50	5	1.15	—	10	DO-214AB	Active
S5AC-13-F	Diodes Incorporated	50	5	1.15	—	10	DO-214AB	Active
S5AL-TP	Micro Commercial Co	50	5	1.2	—	10	DO-214AB	Not For New Designs
ES3A-13-F	Diodes Incorporated	50	3	0.9	0.025	10	DO-214AB	Active
ES3AB-13-F	Diodes Incorporated	50	3	0.9	0.025	10	DO-214AA	Active
RS3A-13-F	Diodes Incorporated	50	3	1.3	0.15	5	DO-214AB	Active
RS3A-E3/57T	Vishay General Semiconductor - Diodes Division	50	3	1.3	0.15	10	DO-214AB	Active
RS3A-E3/9AT	Vishay General Semiconductor - Diodes Division	50	3	1.3	0.15	10	DO-214AB	Active

Engineering Selection Recommendations

For Direct Replacement (5 A, 50 V, Standard Recovery):

CGRC501-G (Comchip Technology) and S5AC-13-F (Diodes Incorporated) are the primary active alternatives. Both maintain the 5 A current rating, 50 V voltage rating, and DO-214AB package configuration. CGRC501-G is active in production with established supply chain availability. S5AC-13-F is active with extended operating temperature range (-65°C to 150°C) and higher inventory levels, providing superior long-term availability.

For Enhanced Performance (5 A, 50 V, Higher Current Capability):

S5A (Diotec Semiconductor) provides an 8 A current rating within the same 50 V voltage class and DO-214AB package, offering design margin for applications approaching the 5 A limit. This part is active and suitable for new designs.

For Current-Limited Applications (3 A, 50 V):

ES3A-13-F (Diodes Incorporated) and RS3A-13-F (Diodes Incorporated) are suitable only for applications where the circuit current requirement does not exceed 3 A. ES3A-13-F employs fast recovery technology (25 ns) appropriate for high-frequency switching applications. RS3A-13-F provides standard fast recovery (150 ns) with lower reverse leakage (5 µA).

Compliance and Certification:

All recommended active parts maintain ROHS3 compliance and REACH unaffected status, matching the original S5A M6G specifications. Moisture sensitivity level is uniformly rated at MSL 1 (Unlimited) across all alternatives.

Parts to Avoid:

S5AL-TP (Micro Commercial Co) carries a "Not For New Designs" status and should not be selected for new production applications despite electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the S5A (Diotec Semiconductor) with 8 A rating replace the S5A M6G in all applications?

A: The S5A provides a higher current rating (8 A) within the same 50 V voltage class and identical DO-214AB package. It is electrically compatible and suitable for direct substitution. The higher current capability introduces no circuit incompatibility; it simply provides additional design margin.

Q: What is the difference between the CGRC501-G and S5AC-13-F for replacement purposes?

A: Both parts maintain identical 5 A current, 50 V voltage, and DO-214AB package specifications. CGRC501-G is manufactured by Comchip Technology with active production status. S5AC-13-F is manufactured by Diodes Incorporated with extended operating temperature range (-65°C to 150°C versus -55°C to 150°C) and significantly higher inventory availability (30,200 units). Selection depends on supply chain requirements and thermal operating envelope.

Q: Why are ES3A-13-F and RS3A-13-F listed as similar rather than direct substitutes?

A: These parts operate at 3 A average rectified current, which is below the 5 A specification of the S5A M6G. They are suitable only for applications where the actual circuit current does not exceed 3 A. Use of these parts in circuits designed for 5 A operation would result in thermal stress and potential device failure.

Q: Is the DO-214AA package (SMB) of ES3AB-13-F compatible with the DO-214AB (SMC) footprint?

A: No. DO-214AA (SMB) and DO-214AB (SMC) are distinct surface mount packages with different physical dimensions and PCB footprints. ES3AB-13-F cannot be used as a direct replacement without PCB redesign.

Q: What does "Standard Recovery >500ns" mean in the context of the S5A M6G?

A: Standard recovery classification indicates a reverse recovery time greater than 500 nanoseconds. The S5A M6G specifies 1.5 µs recovery time, placing it in the standard recovery category. This classification is appropriate for general-purpose rectification at line frequencies and moderate switching speeds. Fast recovery alternatives (such as ES3A-13-F at 25 ns) are required only for high-frequency switching applications above approximately 100 kHz.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed maintain ROHS3 compliance status, matching the original S5A M6G specification. This ensures compatibility with environmental and regulatory requirements across all major markets.

Q: What is the significance of the capacitance specification (60 pF @ 4V, 1MHz) for the S5A M6G?

A: Junction capacitance affects high-frequency performance and switching characteristics. The S5A M6G specifies 60 pF at 4 V and 1 MHz. Substitute parts with different capacitance values (such as S5AC-13-F at 40 pF) may exhibit slightly different frequency response characteristics but remain suitable for standard rectification applications. Capacitance differences become significant only in high-frequency or precision timing circuits.

Q: Can S5AL-TP be used despite its "Not For New Designs" status?

A: S5AL-TP maintains electrical compatibility with the S5A M6G (5 A, 50 V, DO-214AB package). However, the "Not For New Designs" designation indicates the manufacturer has discontinued active development and support. For new production applications, selection of active parts (CGRC501-G, S5AC-13-F, or S5A) is recommended to ensure long-term supply chain stability and manufacturer support.

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