S5B-E3/9AT Equivalent & Substitute Parts

Part Overview

The S5B-E3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 100 V DC reverse voltage with 5 A average rectified current in a DO-214AB (SMC) package. The part is currently active in production with 1,109 pieces in stock. Alternative equivalent and substitute parts are available to support procurement flexibility, inventory management, and application-specific requirements across multiple manufacturers and packaging configurations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	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 @ 100 V	µA
Capacitance @ Vr, F	40 @ 4V, 1MHz	pF
Package / Case	DO-214AB, SMC	-
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the S5B-E3/9AT are classified into four categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications: 100 V reverse voltage, 5 A average rectified current, 1.15 V forward voltage at 5 A, 2.5 µs reverse recovery time, 10 µA reverse leakage current, and DO-214AB (SMC) package. These parts are direct functional replacements with no circuit redesign required.

Automotive-Grade Parametric Equivalent meets the same electrical specifications as the main part but includes AEC-Q101 automotive qualification and automotive-grade designation. This variant is suitable for applications requiring automotive-level reliability and traceability.

Cross-Manufacturer Parametric Equivalent provides identical electrical performance from an alternative manufacturer (Diodes Incorporated) with different packaging designation (Cut Tape & Digi-Reel®) and extended lower operating temperature limit (-65°C vs. -55°C).

Manufacturer-Recommended Upgrade represents a higher-specification alternative with increased voltage rating (200 V vs. 100 V) and reduced current rating (4 A vs. 5 A), featuring faster recovery characteristics (30 ns vs. 2.5 µs) and lower reverse leakage (3 µA vs. 10 µA).

Discontinued Parametric Equivalent maintains electrical compatibility but is no longer actively distributed, with minor variations in reverse recovery time (1.5 µs vs. 2.5 µs) and capacitance (60 pF vs. 40 pF).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Temp Range [°C]	Status
S5B-E3/9AT	Vishay	100	5	1.15 @ 5 A	2.5	10 @ 100 V	DO-214AB (SMC)	-55 to 150	Active
S5B-E3/57T	Vishay	100	5	1.15 @ 5 A	2.5	10 @ 100 V	DO-214AB (SMC)	-55 to 150	Active
S5B-M3/57T	Vishay	100	5	1.15 @ 5 A	2.5	10 @ 100 V	DO-214AB (SMC)	-55 to 150	Active
S5BHE3_A/H	Vishay	100	5	1.15 @ 5 A	2.5	10 @ 100 V	DO-214AB (SMC)	-55 to 150	Active (AEC-Q101)
S5BC-13-F	Diodes Incorporated	100	5	1.15 @ 5 A	-	10 @ 100 V	DO-214AB (SMC)	-65 to 150	Active
STTH4R02S	STMicroelectronics	200	4	1.05 @ 4 A	0.03	3 @ 200 V	DO-214AB (SMC)	-55 to 175	Active
S5B V7G	Taiwan Semiconductor Corporation	100	5	1.15 @ 5 A	1.5	10 @ 100 V	DO-214AB (SMC)	-55 to 150	Discontinued

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select S5B-E3/57T or S5B-M3/57T. Both parts maintain 100% electrical and mechanical compatibility with the S5B-E3/9AT. S5B-E3/57T offers the highest inventory availability (30,200 pieces) and is recommended for standard applications. S5B-M3/57T provides an alternative source with adequate stock (7,507 pieces).

For Automotive Applications: Select S5BHE3_A/H. This part is qualified to AEC-Q101 automotive standards and maintains identical electrical specifications. Use this variant when automotive-grade traceability and reliability documentation are required.

For Extended Temperature Range: Select S5BC-13-F from Diodes Incorporated. This part extends the lower operating temperature limit to -65°C while maintaining all other electrical parameters. Use when applications require operation below -55°C.

For Higher Voltage Applications: Select STTH4R02S from STMicroelectronics only when circuit requirements permit the trade-off of reduced current rating (4 A vs. 5 A) in exchange for doubled voltage rating (200 V vs. 100 V) and significantly faster recovery characteristics (30 ns vs. 2.5 µs). This part is not a direct replacement and requires circuit analysis.

Avoid: S5B V7G is discontinued at DiGi Electronics and should not be selected for new designs or long-term procurement.

All recommended parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can S5B-E3/57T be used as a direct replacement for S5B-E3/9AT?

A: Yes. S5B-E3/57T is a parametric equivalent with identical voltage rating (100 V), current rating (5 A), forward voltage (1.15 V @ 5 A), reverse recovery time (2.5 µs), reverse leakage current (10 µA @ 100 V), and package (DO-214AB SMC). No circuit modifications are required.

Q: What is the difference between S5B-E3/9AT and S5BHE3_A/H?

A: Both parts have identical electrical specifications and package. S5BHE3_A/H includes AEC-Q101 automotive qualification and automotive-grade designation. Select S5BHE3_A/H when automotive reliability standards and documentation are required.

Q: Can STTH4R02S replace S5B-E3/9AT in all applications?

A: No. STTH4R02S has different electrical specifications: 200 V reverse voltage (vs. 100 V), 4 A current rating (vs. 5 A), and 30 ns reverse recovery time (vs. 2.5 µs). This part is suitable only for applications where the higher voltage rating is beneficial and the reduced current rating is acceptable. Circuit analysis is required before substitution.

Q: Why is S5B V7G listed if it is discontinued?

A: S5B V7G is included for reference purposes only. It maintains electrical compatibility with the main part but is no longer actively distributed. Do not select this part for new designs or procurement.

Q: What packaging differences exist between substitute parts?

A: S5B-E3/9AT, S5B-E3/57T, S5B-M3/57T, and S5BHE3_A/H use Tape & Reel (TR) packaging. S5BC-13-F uses Cut Tape (CT) & Digi-Reel® packaging. STTH4R02S uses Cut Tape (CT) & Digi-Reel® packaging. All parts use the same DO-214AB (SMC) physical package. Packaging designation affects supply format, not component form factor.

Q: Is S5BC-13-F suitable for applications requiring operation below -55°C?

A: Yes. S5BC-13-F extends the lower operating temperature limit to -65°C, making it suitable for applications requiring operation in this range. All other electrical specifications remain compatible with the S5B-E3/9AT.

Q: What is the inventory status of each substitute part?

A: S5B-E3/57T: 30,200 pieces. S5B-M3/57T: 7,507 pieces. S5BHE3_A/H: 2,583 pieces. S5BC-13-F: 6,713 pieces. STTH4R02S: 17,600 pieces. S5B V7G: 2,074 pieces (discontinued). Verify current availability with your supplier before finalizing procurement.

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