S5A R7G Equivalent & Substitute Parts

Part Overview

The S5A R7G 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 surface mount DO-214AB (SMC) 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 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	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the S5A R7G 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 specifications. Parts are grouped into three categories:

Direct Equivalents maintain all electrical specifications and package form factor identical to the S5A R7G, differing only in manufacturer or internal design revision.

Parametric Equivalents meet or exceed the voltage and current ratings with compatible package types but may exhibit variations in forward voltage, recovery time, or temperature range within acceptable engineering tolerances.

Similar Parts operate at the same voltage rating but with reduced current capacity (3 A instead of 5 A) or different recovery characteristics, suitable only for applications with lower current requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [µs]	Ir @ Vr [µA]	Package	Tj Range [°C]	Product Status
S5A R7G	Taiwan Semiconductor Corporation	50	5	1.15 @ 5A	1.5	10 @ 50V	DO-214AB (SMC)	-55 to 150	Discontinued
S5A	Diotec Semiconductor	50	8	1.1 @ 5A	1.5	10 @ 50V	DO-214AB (SMC)	-50 to 150	Active
S5A V7G	Taiwan Semiconductor Corporation	50	5	1.15 @ 5A	1.5	10 @ 50V	DO-214AB (SMC)	-55 to 150	Discontinued
CGRC501-G	Comchip Technology	50	5	1.15 @ 5A	—	10 @ 50V	DO-214AB (SMC)	—	Active
S5AC-13-F	Diodes Incorporated	50	5	1.15 @ 5A	—	10 @ 50V	DO-214AB (SMC)	-65 to 150	Active
S5AL-TP	Micro Commercial Co	50	5	1.2 @ 5A	—	10 @ 50V	DO-214AB (SMC)	-55 to 150	Not For New Designs
ES3A-13-F	Diodes Incorporated	50	3	0.9 @ 3A	0.025	10 @ 50V	DO-214AB (SMC)	-55 to 150	Active
RS3A-13-F	Diodes Incorporated	50	3	1.3 @ 3A	0.15	5 @ 50V	DO-214AB (SMC)	-65 to 150	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The CGRC501-G (Comchip Technology) and S5AC-13-F (Diodes Incorporated) are direct substitutes for the S5A R7G. Both maintain 50 V reverse voltage, 5 A average rectified current, 1.15 V forward voltage at 5 A, and DO-214AB (SMC) package configuration. Both parts are ROHS3 compliant and carry REACH Unaffected status. The S5AC-13-F offers extended operating temperature range (-65°C to 150°C) compared to the original specification (-55°C to 150°C). Both parts are currently in active production status.

For Enhanced Performance (Higher Current Rating):

The S5A (Diotec Semiconductor) provides an 8 A average rectified current rating while maintaining 50 V reverse voltage and identical package form factor. This part is suitable for applications requiring higher current capacity without circuit redesign. Forward voltage is reduced to 1.1 V at 5 A, providing improved efficiency. Operating temperature range is -50°C to 150°C. This part is in active production status.

For Cost-Optimized Selection (Lower Current Applications):

The ES3A-13-F (Diodes Incorporated) operates at 50 V reverse voltage with 3 A average rectified current in the same DO-214AB (SMC) package. This part is suitable only for applications with maximum current requirements of 3 A or less. Forward voltage is 0.9 V at 3 A, and recovery time is 25 ns (fast recovery). This part is in active production status.

Parts to Avoid for New Designs:

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

Frequently Asked Questions (FAQ)

Q: Can the S5A (Diotec Semiconductor) with 8 A rating be used as a direct replacement for the S5A R7G rated at 5 A?

A: Yes. The S5A provides higher current capacity (8 A versus 5 A) while maintaining identical 50 V reverse voltage and DO-214AB (SMC) package. The lower forward voltage (1.1 V at 5 A versus 1.15 V) represents improved performance. This substitution is suitable for all applications where the original 5 A part was specified.

Q: What is the difference between the CGRC501-G and S5AC-13-F substitutes?

A: Both parts maintain identical electrical specifications (50 V, 5 A, 1.15 V forward voltage, DO-214AB package). The S5AC-13-F offers extended operating temperature range (-65°C to 150°C versus standard -55°C to 150°C). Selection depends on application temperature requirements and supplier availability.

Q: Can the ES3A-13-F (3 A rated) be used in place of the S5A R7G (5 A rated)?

A: No. The ES3A-13-F is rated for maximum 3 A average rectified current. Use of this part in a 5 A application will result in device failure. This part is suitable only for applications with confirmed maximum current requirements of 3 A or less.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and REACH Unaffected designation, matching the compliance profile of the original S5A R7G.

Q: What is the significance of "Not For New Designs" status on the S5AL-TP?

A: This designation indicates the manufacturer has discontinued active support for new product development. While the part may meet electrical specifications, it should not be selected for new circuit designs. Existing designs using this part should transition to active-status alternatives such as S5AC-13-F or CGRC501-G.

Q: Does package form factor differ between substitute options?

A: All listed direct equivalents and parametric equivalents use the DO-214AB (SMC) surface mount package, maintaining identical PCB footprint and assembly compatibility. The ES3AB-13-F variant uses DO-214AA (SMB) package and is not recommended due to different footprint requirements.

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