S5D R7G Equivalent & Substitute Parts

Part Overview

The S5D R7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200 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 maintenance applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with comparable performance characteristics within the same voltage and current ratings.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	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 @ 200 V
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the S5D R7G is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or greater to ensure safe operation in the original circuit.

Current Rating: Substitute parts must support an average rectified current of 5 A or greater. Parts rated below 5 A are classified as similar alternatives suitable only for reduced-current applications.

Package and Mounting: All direct substitutes utilize the DO-214AB (SMC) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Forward Voltage: Forward voltage drop at rated current must not exceed 1.2 V to maintain acceptable power dissipation and circuit performance.

Recovery Characteristics: Standard recovery technology (>500 ns) is acceptable for general-purpose rectification applications.

Compliance: All substitute parts must maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) to meet regulatory and manufacturing requirements.

Parts are grouped into two categories: Direct Substitutes (5 A rated current, DO-214AB package) and Similar Alternatives (3 A rated current, suitable for lower-current applications or as design alternatives).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Status
S5D R7G	Taiwan Semiconductor	200	5	1.15 @ 5A	1.5	10 @ 200V	DO-214AB	Discontinued
S5D V7G	Taiwan Semiconductor	200	5	1.15 @ 5A	1.5	10 @ 200V	DO-214AB	Discontinued
CGRC503-G	Comchip Technology	200	5	1.15 @ 5A	—	10 @ 200V	DO-214AB	Active
S5DC-13-F	Diodes Incorporated	200	5	1.15 @ 5A	—	10 @ 200V	DO-214AB	Active
S5DL-TP	Micro Commercial Co	200	5	1.2 @ 5A	—	10 @ 200V	DO-214AB	Not For New Designs
ER3D-TP	Micro Commercial Co	200	3	0.95 @ 3A	0.035	5 @ 200V	DO-214AB	Active
ES3D-13-F	Diodes Incorporated	200	3	0.9 @ 3A	0.025	10 @ 200V	DO-214AB	Active
MURS320-13-F	Diodes Incorporated	200	3	0.875 @ 3A	0.025	5 @ 200V	DO-214AB	Active
MURS320-E3/57T	Vishay General Semiconductor	200	3	0.875 @ 3A	0.035	5 @ 200V	DO-214AB	Active
MURS320-E3/9AT	Vishay General Semiconductor	200	3	0.875 @ 3A	0.035	5 @ 200V	DO-214AB	Active

Engineering Selection Recommendations

Direct Substitutes (5 A Rated Current):

The S5D V7G from Taiwan Semiconductor Corporation is an exact electrical equivalent to the S5D R7G, differing only in packaging format (Cut Tape versus original specification). Both parts are discontinued at DiGi Electronics but remain available in inventory.

The CGRC503-G from Comchip Technology provides a 5 A rated alternative with identical voltage and current specifications. This part maintains Active product status and is suitable for new designs requiring 5 A rectification at 200 V.

The S5DC-13-F from Diodes Incorporated is an Active product offering 5 A rated current with identical electrical parameters. This part features an extended operating temperature range (-65°C to 150°C) and is recommended for applications requiring long-term availability and design continuity.

The S5DL-TP from Micro Commercial Co maintains 5 A rating and 200 V voltage specification but carries a "Not For New Designs" status. This part is suitable only for legacy system maintenance where existing designs require direct replacement.

Similar Alternatives (3 A Rated Current):

The ER3D-TP, ES3D-13-F, MURS320-13-F, MURS320-E3/57T, and MURS320-E3/9AT are all rated for 3 A average rectified current at 200 V. These parts are suitable for applications where the original 5 A requirement can be reduced or where circuit redesign accommodates lower current ratings. All maintain Active product status and ROHS3 compliance.

Compliance and Availability:

All recommended direct substitutes maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH unaffected status, matching the original part's regulatory profile. Parts with Active status are preferred for new designs and long-term production continuity.

Frequently Asked Questions (FAQ)

Q: Can the S5D V7G directly replace the S5D R7G?

A: Yes. The S5D V7G is electrically identical to the S5D R7G, with matching voltage (200 V), current (5 A), forward voltage (1.15 V @ 5 A), and reverse recovery time (1.5 µs) specifications. The difference is packaging format (Cut Tape versus original). Both parts are discontinued but available in inventory.

Q: What is the difference between direct substitutes and similar alternatives?

A: Direct substitutes maintain the same 5 A current rating and DO-214AB package as the original S5D R7G. Similar alternatives are rated for 3 A current and are suitable only for applications where lower current capacity is acceptable or where circuit redesign is feasible.

Q: Can I use a 3 A rated diode in place of the 5 A S5D R7G?

A: No, not without circuit analysis and redesign. A 3 A rated diode will exceed its maximum current rating if the original circuit demands 5 A, resulting in thermal stress and potential failure. Use 3 A alternatives only in applications confirmed to operate at 3 A or below.

Q: Why is the S5DL-TP marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that the manufacturer has discontinued active support for this part. While it remains available for legacy system maintenance, it is not recommended for new product development. Use CGRC503-G or S5DC-13-F for new designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), matching the original S5D R7G regulatory profile.

Q: What is the significance of forward voltage differences among substitutes?

A: Forward voltage affects power dissipation and heat generation. The S5D R7G specifies 1.15 V @ 5 A. The S5DL-TP specifies 1.2 V @ 5 A, representing a 0.05 V increase. For high-current or thermally constrained applications, lower forward voltage (CGRC503-G, S5DC-13-F) is preferred to minimize power loss.

Q: Can I use CGRC503-G or S5DC-13-F for new production?

A: Yes. Both CGRC503-G (Comchip Technology, Active status) and S5DC-13-F (Diodes Incorporated, Active status) are recommended for new production. Both maintain 5 A rating, 200 V voltage specification, and ROHS3 compliance. S5DC-13-F offers extended temperature range (-65°C to 150°C) compared to the original part (-55°C to 150°C).

Q: What packaging options are available?

A: All direct substitutes use the DO-214AB (SMC) surface mount package, ensuring mechanical compatibility with existing PCB layouts. Packaging formats vary (Cut Tape, Tape & Reel, Digi-Reel) but do not affect electrical performance or board-level compatibility.

Q: Are there any performance differences in reverse recovery time?

A: The original S5D R7G specifies 1.5 µs reverse recovery time (standard recovery). Direct substitutes CGRC503-G and S5DC-13-F do not specify reverse recovery time but maintain standard recovery technology. Similar alternatives (ER3D-TP, ES3D-13-F, MURS320 series) feature fast recovery characteristics (25–35 ns), which reduce switching losses but are not required for general-purpose rectification applications.

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