Equivalent & Substitute Parts for S5M-E3/9AT

Part Overview

The S5M-E3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode is rated for 1000 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) package. The part is currently active and in stock with 4400 units available. Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the main part, with consideration for packaging format, availability, and product status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	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 @ 1000 V	µA
Capacitance @ Vr, F	40 @ 4V, 1MHz	pF
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 S5M-E3/9AT is determined by the following critical parameters:

Voltage Rating (Vr): The substitute must equal or exceed 1000 V DC reverse voltage. Parts rated below 1000 V are not direct equivalents and are listed separately as downrated alternatives.

Current Rating (Io): The substitute must equal or exceed 5 A average rectified current. Parts with lower current ratings cannot handle the same load conditions.

Package Type: All substitutes must use the DO-214AB (SMC) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts.

Forward Voltage (Vf): Substitutes with Vf at or below 1.15 V @ 5 A are preferred to maintain similar power dissipation characteristics.

Recovery Characteristics: Standard recovery diodes (>500 ns) are interchangeable with the main part. Fast recovery diodes (≤500 ns) are listed as alternatives where performance improvement is acceptable.

Compliance & Certifications: RoHS3 compliance and MSL 1 rating are standard across all listed substitutes. Automotive-grade parts (AEC-Q101) are identified separately for applications requiring automotive qualification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Packaging Format	Status	Inventory [Pcs]
S5M-E3/9AT	Vishay General Semiconductor	1000	5	1.15 @ 5 A	2.5	10 @ 1000 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	Active	4400
S5M-E3/57T	Vishay General Semiconductor	1000	5	1.15 @ 5 A	2.5	10 @ 1000 V	DO-214AB, SMC	Cut Tape (CT)	Active	30400
S5MHE3_A/H	Vishay General Semiconductor	1000	5	1.15 @ 5 A	2.5	10 @ 1000 V	DO-214AB, SMC	Tape & Reel (TR)	Active	7200
S5MHE3_A/I	Vishay General Semiconductor	1000	5	1.15 @ 5 A	2.5	10 @ 1000 V	DO-214AB, SMC	Tape & Reel (TR)	Active	7878
S5ML-TP	Micro Commercial Co	1000	5	1.2 @ 5 A	—	10 @ 1000 V	DO-214AB, SMC	Tape & Reel (TR)	Active	4200
S5MC-13-F	Diodes Incorporated	1000	5	1.15 @ 5 A	—	10 @ 1000 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	Active	15400
S5M R7G	Taiwan Semiconductor Corporation	1000	5	1.15 @ 5 A	1.5	10 @ 1000 V	DO-214AB, SMC	Cut Tape (CT)	Discontinued at DiGi Electronics	1031
S5M V7G	Taiwan Semiconductor Corporation	1000	5	1.15 @ 5 A	1.5	10 @ 1000 V	DO-214AB, SMC	Tape & Reel (TR)	Discontinued at DiGi Electronics	16568
S5KC-13-F	Diodes Incorporated	800	5	1.15 @ 5 A	—	10 @ 800 V	DO-214AB, SMC	Tape & Reel (TR)	Active	15400
SMLJ60S10-TP	Micro Commercial Co	1000	6	1.0 @ 6 A	—	5 @ 1000 V	DO-214AB, SMC	Tape & Reel (TR)	Active	12900
STTH310S	STMicroelectronics	1000	3	1.7 @ 3 A	0.075	10 @ 1000 V	DO-214AB, SMC	Cut Tape (CT) & Digi-Reel®	Active	17310

Engineering Selection Recommendations

Direct Parametric Equivalents (1000 V, 5 A, Standard Recovery):

The following parts are direct parametric equivalents to the S5M-E3/9AT and are suitable for direct substitution:

S5M-E3/57T (Vishay) — Identical electrical specifications with higher inventory availability (30,400 units). Differs only in packaging format (Cut Tape vs. Cut Tape & Digi-Reel®). Active product status.

S5MHE3_A/H and S5MHE3_A/I (Vishay) — Identical electrical specifications with automotive-grade qualification (AEC-Q101). Supplied in Tape & Reel format. Both active products with strong inventory levels (7,200 and 7,878 units respectively). Suitable for applications requiring automotive compliance.

S5ML-TP (Micro Commercial Co) — Meets all voltage and current requirements with marginally higher forward voltage (1.2 V vs. 1.15 V @ 5 A). Active product with 4,200 units in stock.

S5MC-13-F (Diodes Incorporated) — Identical electrical specifications with extended operating temperature range (-65°C to 150°C vs. -55°C to 150°C). Active product with 15,400 units available.

Parametric Equivalents with Improved Recovery Characteristics:

S5M R7G and S5M V7G (Taiwan Semiconductor Corporation) — Both provide identical voltage and current ratings with faster reverse recovery time (1.5 µs vs. 2.5 µs). Product status is discontinued at DiGi Electronics; use only if existing inventory is available and long-term supply is not required.

Upgraded Current Rating (1000 V, 6 A):

SMLJ60S10-TP (Micro Commercial Co) — Exceeds current rating (6 A vs. 5 A) while maintaining 1000 V voltage rating. Forward voltage is lower (1.0 V @ 6 A). Suitable for applications requiring higher current capacity. Active product with 12,900 units in stock.

Downrated Voltage Alternative (800 V, 5 A):

S5KC-13-F (Diodes Incorporated) — Reduces voltage rating to 800 V while maintaining 5 A current rating. Use only in applications where 800 V reverse voltage is sufficient. Active product with 15,400 units available.

Lower Current Rating (1000 V, 3 A):

STTH310S (STMicroelectronics) — Reduces current rating to 3 A while maintaining 1000 V voltage rating. Features fast recovery characteristics (75 ns trr). Not suitable for applications requiring 5 A current capacity. Active product with 17,310 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I use S5M-E3/57T as a direct replacement for S5M-E3/9AT?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (1000 V, 5 A, 1.15 V forward voltage, 2.5 µs recovery time). The only difference is packaging format: S5M-E3/9AT is supplied in Cut Tape & Digi-Reel®, while S5M-E3/57T is Cut Tape only. Electrical performance and PCB compatibility are identical.

Q: What is the difference between S5MHE3_A/H and S5MHE3_A/I?

A: Both parts have identical electrical specifications and are automotive-grade (AEC-Q101 qualified). The difference is in the manufacturing lot or qualification batch designation (H vs. I). Both are suitable for automotive applications requiring AEC-Q101 compliance.

Q: Can I substitute STTH310S for S5M-E3/9AT?

A: No. STTH310S has a lower current rating (3 A vs. 5 A) and higher forward voltage (1.7 V @ 3 A vs. 1.15 V @ 5 A). It is not suitable for applications requiring 5 A current capacity. Use STTH310S only in circuits designed for 3 A maximum current.

Q: Is S5KC-13-F a suitable substitute?

A: S5KC-13-F is a downrated alternative with 800 V reverse voltage instead of 1000 V. Use this part only if your application operates at 800 V or lower. It is not a direct equivalent for circuits requiring 1000 V rating.

Q: What is the advantage of SMLJ60S10-TP over S5M-E3/9AT?

A: SMLJ60S10-TP provides higher current capacity (6 A vs. 5 A) and lower forward voltage (1.0 V @ 6 A vs. 1.15 V @ 5 A), resulting in reduced power dissipation. Use this part in applications where higher current handling or lower heat generation is beneficial. Voltage rating remains 1000 V.

Q: Why are S5M R7G and S5M V7G listed as discontinued?

A: Both Taiwan Semiconductor Corporation parts are marked as discontinued at DiGi Electronics. While inventory remains available (1,031 and 16,568 units respectively), these parts should not be selected for new designs. Use active alternatives such as S5M-E3/57T or S5MHE3_A/H for long-term supply assurance.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT), Cut Tape & Digi-Reel®, and Tape & Reel (TR) formats are packaging and delivery methods only. Electrical specifications and PCB performance are identical across all packaging formats for the same part number variant.

Q: Are all listed substitutes RoHS3 compliant?

A: Yes. All parts listed in this reference are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. All parts are suitable for lead-free soldering processes.

Q: Can I use S5ML-TP if forward voltage is slightly higher?

A: Yes. S5ML-TP has a forward voltage of 1.2 V @ 5 A compared to 1.15 V @ 5 A for the main part. This 0.05 V difference results in minimal additional power dissipation and is acceptable in most applications. Verify thermal design margins if operating at maximum current continuously.

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