S3JHM3_A/I Equivalent & Substitute Parts

Part Overview

The S3JHM3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 600 V DC reverse voltage with a 3 A average rectified current rating in a DO-214AB (SMC) package. The part is currently active in production and carries automotive-grade qualification under AEC-Q101 standard.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when sourcing from multiple suppliers is required for supply chain continuity. The S3JHM3_A/I is supplied in Tape & Reel (TR) packaging; equivalent alternatives are available in Cut Tape (CT) and alternative reel formats to accommodate different assembly and procurement workflows.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2.5 A	V @ A
Reverse Recovery Time (trr)	2.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S3JHM3_A/I is determined by electrical and mechanical parameter equivalence. All substitute parts must maintain the following critical parameters:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 2.5 A
Reverse Recovery Time (trr): 2.5 µs
Current - Reverse Leakage @ Vr: 10 µA @ 600 V
Capacitance @ Vr, F: 60 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 150°C

Mechanical Parameters (Must Match):

Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Technology: Standard

Allowable Variations:

Packaging format (Tape & Reel, Cut Tape, Digi-Reel)
Manufacturer (Vishay General Semiconductor - Diodes Division, Micro Commercial Co, Taiwan Semiconductor Corporation)
Automotive qualification status (AEC-Q101 certified or non-certified variants acceptable)

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical and mechanical specifications with packaging or manufacturer variations) and Similar Parts (equivalent performance with minor specification differences).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Capacitance	Packaging	Grade	Inventory
S3JHM3_A/I	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Tape & Reel (TR)	Automotive AEC-Q101	689 Pcs
S3J-E3/57T	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Cut Tape (CT)	Standard	15200 Pcs
S3J-E3/9AT	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Tape & Reel (TR)	Standard	2280 Pcs
S3J-M3/57T	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Cut Tape (CT) & Digi-Reel	Standard	8261 Pcs
S3JHE3_A/H	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Tape & Reel (TR)	Automotive AEC-Q101	5765 Pcs
S3JHE3_A/I	Vishay	600 V	3 A	1.15 V @ 2.5 A	2.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Cut Tape (CT)	Automotive AEC-Q101	5900 Pcs
S3J-TP	Micro Commercial Co	600 V	3 A	1.2 V @ 3 A	Not specified	10 µA @ 600 V	Not specified	Tape & Reel (TR)	Standard	39720 Pcs
S3J V7G	Taiwan Semiconductor Corporation	600 V	3 A	1.15 V @ 3 A	1.5 µs	10 µA @ 600 V	60 pF @ 4V, 1MHz	Not specified	Standard	2362 Pcs (Discontinued)

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents):

The parts S3JHE3_A/H and S3JHE3_A/I are direct parametric equivalents to the S3JHM3_A/I. Both maintain identical electrical specifications and automotive AEC-Q101 qualification. S3JHE3_A/H is supplied in Tape & Reel format matching the original packaging, while S3JHE3_A/I is supplied in Cut Tape format. Both parts carry higher inventory levels (5765 Pcs and 5900 Pcs respectively) compared to the primary part (689 Pcs).

Secondary Substitutes (Packaging Variants):

The parts S3J-E3/57T and S3J-M3/57T are Vishay products with identical electrical specifications but supplied in Cut Tape and Digi-Reel formats. These parts are non-automotive grade (standard technology classification). S3J-E3/57T offers the highest inventory availability at 15200 Pcs. These parts are suitable for applications where automotive qualification is not required.

S3J-E3/9AT is a Vishay Tape & Reel variant with identical electrical specifications but standard (non-automotive) grade. Inventory is limited at 2280 Pcs.

Alternative Manufacturer:

The S3J-TP from Micro Commercial Co maintains the 600 V / 3 A electrical ratings and DO-214AB package. Forward voltage specification differs slightly (1.2 V @ 3 A versus 1.15 V @ 2.5 A on the primary part). Reverse recovery time and capacitance specifications are not provided. This part offers the highest inventory availability at 39720 Pcs and is suitable for non-automotive applications.

Discontinued Part:

The S3J V7G from Taiwan Semiconductor Corporation is marked as discontinued at DiGi Electronics. This part exhibits a faster reverse recovery time (1.5 µs versus 2.5 µs) and forward voltage specification at different test conditions (1.15 V @ 3 A). This part should not be selected for new designs.

Compliance Status:

All active substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status, matching the primary part's environmental and regulatory compliance profile.

Frequently Asked Questions (FAQ)

Q: Can S3JHE3_A/I be used as a direct replacement for S3JHM3_A/I?

A: Yes. S3JHE3_A/I is a parametric equivalent with identical electrical specifications (600 V, 3 A, 1.15 V forward voltage, 2.5 µs recovery time) and automotive AEC-Q101 qualification. The primary difference is packaging format: S3JHE3_A/I is supplied in Cut Tape (CT) while S3JHM3_A/I is supplied in Tape & Reel (TR). Assembly equipment compatibility with Cut Tape format must be verified.

Q: What is the difference between S3JHE3_A/H and S3JHE3_A/I?

A: Both parts are parametric equivalents with identical electrical specifications and automotive AEC-Q101 qualification. S3JHE3_A/H is supplied in Tape & Reel (TR) packaging, matching the original S3JHM3_A/I format. S3JHE3_A/I is supplied in Cut Tape (CT) packaging. Selection depends on assembly line packaging format requirements.

Q: Can non-automotive grade parts (S3J-E3/57T, S3J-E3/9AT, S3J-M3/57T) be substituted for the automotive-grade S3JHM3_A/I?

A: Non-automotive grade parts maintain identical electrical specifications and DO-214AB packaging. Substitution is permissible only in applications where automotive qualification (AEC-Q101) is not a design requirement. Automotive applications must use AEC-Q101 qualified parts.

Q: What are the packaging format differences among substitute parts?

A: Tape & Reel (TR) is a continuous reel format suitable for high-speed automated assembly. Cut Tape (CT) is individual tape segments suitable for lower-volume or mixed-component assembly. Digi-Reel is a proprietary reel format. Assembly equipment must support the selected packaging format.

Q: Is the S3J-TP from Micro Commercial Co a suitable substitute?

A: S3J-TP maintains the 600 V / 3 A electrical ratings and DO-214AB package. Forward voltage specification differs (1.2 V @ 3 A versus 1.15 V @ 2.5 A). Reverse recovery time and capacitance are not specified. This part is suitable for non-automotive applications where the forward voltage tolerance is acceptable. Electrical performance verification is necessary for critical applications.

Q: Why is the S3J V7G listed as discontinued?

A: The S3J V7G is marked as discontinued at DiGi Electronics. This part exhibits different electrical characteristics (1.5 µs reverse recovery time versus 2.5 µs) and should not be selected for new designs. Existing designs using this part should transition to active alternatives.

Q: Do all substitute parts meet the same environmental and compliance standards?

A: All active substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status. These compliance profiles match the primary S3JHM3_A/I part. Discontinued parts (S3J V7G) retain these compliance ratings but should not be used in new designs.

Q: What inventory levels should influence part selection?

A: Inventory availability varies significantly among substitutes. S3J-TP offers the highest availability (39720 Pcs), followed by S3J-E3/57T (15200 Pcs). The primary part S3JHM3_A/I has limited inventory (689 Pcs). Selection should consider supply chain continuity requirements and procurement lead times.

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