Equivalent & Substitute Parts for S5A-E3/9AT

Part Overview

The S5A-E3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 50 V DC reverse voltage with 5 A average rectified current in a DO-214AB (SMC) package. The part is currently active in production with 1129 pieces in stock.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative sourcing is required for supply chain continuity, or when design specifications allow for compatible alternatives from different manufacturers. This reference provides direct parametric equivalents and functional substitutes based on electrical and mechanical compatibility.

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 @ 5 A	V
Reverse Recovery Time (trr)	2.5	µs
Current - Reverse Leakage @ Vr	10 @ 50 V	µA
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

Substitute parts for the S5A-E3/9AT are classified into the following categories based on electrical and mechanical compatibility:

Parametric Equivalents share identical electrical specifications including reverse voltage (50 V), average rectified current (5 A), forward voltage (1.15 V @ 5 A), and package type (DO-214AB SMC). These parts are direct functional replacements with no circuit redesign required.

Direct Manufacturer Alternatives meet the core electrical requirements (50 V, 5 A, DO-214AB SMC package) but may originate from different manufacturers. Compatibility is determined by matching voltage rating, current rating, package configuration, and mounting type.

Upgrade Parts provide enhanced specifications or extended temperature ranges while maintaining backward compatibility with the original circuit requirements.

Manufacturer Recommended Alternatives are suggested by component manufacturers as suitable replacements, though they may have different current ratings or product status classifications.

The following parameters determine substitution eligibility:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50 V
Current - Average Rectified (Io): Must equal or exceed 5 A
Package / Case: Must be DO-214AB or SMC equivalent
Mounting Type: Must be Surface Mount
Technology: Standard or Schottky acceptable for general-purpose applications
RoHS Status: Must maintain ROHS3 Compliance

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Package	Technology	Product Status	Inventory [Pcs]
S5A-E3/9AT	Vishay General Semiconductor	50	5	1.15 @ 5 A	DO-214AB, SMC	Standard	Active	1129
S5A-E3/57T	Vishay General Semiconductor	50	5	1.15 @ 5 A	DO-214AB, SMC	Standard	Active	30100
CGRC501-G	Comchip Technology	50	5	1.15 @ 5 A	DO-214AB, SMC	Standard	Active	5344
S5AL-TP	Micro Commercial Co	50	5	1.2 @ 5 A	DO-214AB, SMC	Standard	Not For New Designs	4119
STPS5L60S	STMicroelectronics	60	5	520 mV @ 5 A	DO-214AB, SMC	Schottky	Active	18127
S5AC-13-F	Diodes Incorporated	50	5	1.15 @ 5 A	DO-214AB, SMC	Standard	Active	30200
S10A-TP	Micro Commercial Co	50	10	1.2 @ 10 A	DO-214AB, SMC	Standard	Obsolete	2203
SMLJ60S05-TP	Micro Commercial Co	50	6	1 @ 6 A	DO-214AB, SMC	Standard	Not For New Designs	12800
S5A V7G	Taiwan Semiconductor Corporation	50	5	1.15 @ 5 A	DO-214AB, SMC	Standard	Discontinued at DiGi Electronics	2533

Engineering Selection Recommendations

Primary Equivalent (Parametric Match): S5A-E3/57T from Vishay General Semiconductor is the direct parametric equivalent to S5A-E3/9AT. Both parts share identical electrical specifications and packaging. S5A-E3/57T is currently active with significantly higher inventory availability (30100 pieces), making it the preferred choice for supply continuity.

Active Manufacturer Alternatives: S5AC-13-F (Diodes Incorporated) and CGRC501-G (Comchip Technology) are active production parts meeting all electrical and mechanical requirements. Both maintain ROHS3 compliance and operate within the same temperature range. S5AC-13-F offers extended lower temperature operation (-65°C minimum versus -55°C), providing enhanced thermal margin in cold environments.

Schottky Technology Option: STPS5L60S (STMicroelectronics) is a Schottky diode with 60 V rating and significantly lower forward voltage (520 mV @ 5 A versus 1.15 V). This part is suitable for applications where reduced forward voltage drop and associated heat dissipation are beneficial. The higher reverse voltage rating provides additional design margin.

Parts Not Recommended for New Designs: S5AL-TP and SMLJ60S05-TP carry "Not For New Designs" status and should not be selected for new circuit development. These parts remain available for legacy system support and repair applications only.

Obsolete Parts: S10A-TP is classified as obsolete and S5A V7G is discontinued at DiGi Electronics. These parts should not be specified for new designs despite remaining inventory availability.

RoHS and Regulatory Compliance: All listed substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification, matching the regulatory profile of the original S5A-E3/9AT.

Frequently Asked Questions (FAQ)

Q: Can S5A-E3/57T be used as a direct replacement for S5A-E3/9AT?

A: Yes. S5A-E3/57T is a parametric equivalent with identical voltage rating (50 V), current rating (5 A), forward voltage (1.15 V @ 5 A), reverse recovery time (2.5 µs), and DO-214AB SMC package. No circuit modifications are required.

Q: What is the difference between S5AC-13-F and S5A-E3/9AT?

A: S5AC-13-F meets all electrical specifications of S5A-E3/9AT with identical 50 V rating, 5 A current, and 1.15 V forward voltage. The primary difference is extended lower operating temperature range (-65°C to 150°C versus -55°C to 150°C) and different manufacturer (Diodes Incorporated versus Vishay). Both use DO-214AB SMC packaging.

Q: Why would STPS5L60S be selected over S5A-E3/9AT?

A: STPS5L60S is a Schottky diode technology with lower forward voltage drop (520 mV versus 1.15 V at 5 A), resulting in reduced power dissipation and heat generation. The 60 V rating provides additional reverse voltage margin. Selection depends on application requirements for efficiency and thermal performance. STPS5L60S is active in production with high inventory availability.

Q: Are S5AL-TP and SMLJ60S05-TP suitable for new product designs?

A: No. Both parts carry "Not For New Designs" product status. These parts are restricted to legacy system support and repair applications. New designs must select from active production alternatives such as S5A-E3/57T, S5AC-13-F, or CGRC501-G.

Q: What is the significance of the DO-214AB SMC package designation?

A: DO-214AB and SMC (Surface Mount Case) are equivalent package designations for this diode form factor. All listed substitute parts use this same surface mount package, ensuring mechanical and thermal compatibility with existing PCB layouts and assembly processes. No footprint modifications are required when substituting between parts with this package type.

Q: Can S10A-TP be used as a substitute for S5A-E3/9AT?

A: S10A-TP has higher current rating (10 A versus 5 A) and is classified as obsolete. While the higher current rating provides design margin, the obsolete status makes it unsuitable for new designs. For applications requiring higher current capacity, alternative active production parts should be evaluated.

Q: What does "Not For New Designs" product status mean?

A: "Not For New Designs" indicates the manufacturer no longer recommends the part for new circuit development. These parts remain available for existing inventory and legacy system support but should not be specified in new product designs. Active production alternatives must be selected instead.

Q: How do reverse recovery time specifications affect substitution?

A: Reverse recovery time (trr) affects switching speed and electromagnetic interference characteristics. S5A-E3/9AT specifies 2.5 µs trr. S5A V7G offers faster recovery at 1.5 µs. STPS5L60S, as a Schottky diode, has inherently faster recovery. For standard rectification applications, these differences are typically not critical, but high-frequency switching circuits may require verification of trr specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the regulatory status of S5A-E3/9AT. All parts are also REACH unaffected and classified as EAR99 for export purposes.

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