Equivalent & Substitute Parts for ACGRC307-HF

Part Overview

The ACGRC307-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 1000 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This part is currently active in production with automotive-grade qualification (AEC-Q101) and ROHS3 compliance.

Substitute parts are necessary when the original manufacturer discontinues production, when alternative sourcing improves supply chain resilience, or when design requirements permit higher current ratings or alternative packaging formats while maintaining electrical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit	Condition
Voltage - DC Reverse (Vr) (Max)	1000	V	—
Current - Average Rectified (Io)	3	A	—
Voltage - Forward (Vf) (Max)	1.15	V	@ 3 A
Current - Reverse Leakage @ Vr	5	µA	@ 1000 V
Speed	Standard Recovery >500ns, > 200mA (Io)	—	—
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	—	—

Substitute Part Grouping Explanation

Substitute parts for the ACGRC307-HF are classified into two categories based on electrical compatibility:

Parametric Equivalents (Direct Substitutes): Parts that maintain identical voltage rating (1000 V), identical current rating (3 A), identical package (DO-214AB/SMC), and identical operating temperature range (-55°C to 150°C). These parts satisfy all critical electrical and mechanical parameters required for direct replacement without circuit redesign.

Functional Equivalents (Higher Current Rating): The S5M R7G operates at 1000 V reverse voltage with 5 A average rectified current. This part exceeds the current specification of the ACGRC307-HF and is suitable for applications where higher current capacity is acceptable or beneficial, provided the circuit design permits the substitution.

The substitution logic is based strictly on:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 1000 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Package / Case: Must be DO-214AB (SMC)
Mounting Type: Must be Surface Mount
Operating Temperature Range: Must cover -55°C to 150°C

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Reverse Leakage @ Vr [µA]	Package	Status	Grade	AEC-Q101
ACGRC307-HF	Comchip Technology	1000	3	1.15 @ 3A	5 @ 1000V	DO-214AB	Active	Automotive	Yes
S3M V7G	Taiwan Semiconductor Corporation	1000	3	1.15 @ 3A	10 @ 1000V	DO-214AB	Discontinued	—	—
S3M-E3/57T	Vishay General Semiconductor	1000	3	1.15 @ 2.5A	10 @ 1000V	DO-214AB	Active	—	—
S3M-E3/9AT	Vishay General Semiconductor	1000	3	1.15 @ 2.5A	10 @ 1000V	DO-214AB	Active	—	—
S3MHE3_A/H	Vishay General Semiconductor	1000	3	1.15 @ 2.5A	10 @ 1000V	DO-214AB	Active	Automotive	Yes
S3MHE3_A/I	Vishay General Semiconductor	1000	3	1.15 @ 2.5A	10 @ 1000V	DO-214AB	Active	Automotive	Yes
S5M R7G	Taiwan Semiconductor Corporation	1000	5	1.15 @ 5A	10 @ 1000V	DO-214AB	Discontinued	—	—

Engineering Selection Recommendations

For Automotive Applications with AEC-Q101 Requirement:

S3MHE3_A/H and S3MHE3_A/I are the preferred substitutes. Both parts maintain automotive-grade qualification and AEC-Q101 certification, matching the compliance profile of the ACGRC307-HF. These parts are currently in active production status with high inventory availability (21,650 and 5,600 units respectively). The S3MHE3_A/H variant is recommended as the primary choice due to superior inventory levels.

For General-Purpose Applications Without Automotive Qualification:

S3M-E3/57T and S3M-E3/9AT are suitable alternatives. Both are manufactured by Vishay General Semiconductor and are in active production. S3M-E3/57T is available in Cut Tape (CT) packaging with 34,200 units in stock, providing the highest inventory availability among all substitutes. S3M-E3/9AT is available in Cut Tape (CT) & Digi-Reel® packaging with 24,300 units in stock.

For Applications Permitting Higher Current Capacity:

S5M R7G provides 5 A average rectified current while maintaining the 1000 V reverse voltage rating and DO-214AB package. This part is suitable when circuit design permits the increased current capability. However, this part is discontinued at DiGi Electronics and should be considered only when long-term supply is confirmed through alternative channels.

Avoid:

S3M V7G is discontinued at DiGi Electronics and should not be selected for new designs despite parametric equivalence to the ACGRC307-HF.

Frequently Asked Questions (FAQ)

Q: Can S3MHE3_A/H be used as a direct replacement for ACGRC307-HF in automotive applications?

A: Yes. Both parts share identical voltage rating (1000 V), current rating (3 A), package (DO-214AB), and operating temperature range (-55°C to 150°C). Both carry automotive-grade qualification and AEC-Q101 certification. The S3MHE3_A/H is a direct substitute suitable for automotive circuit applications.

Q: What is the difference between S3M-E3/57T and S3M-E3/9AT?

A: Both parts are electrically identical with 1000 V reverse voltage, 3 A current rating, and DO-214AB packaging. The primary difference is packaging format: S3M-E3/57T is supplied in Cut Tape (CT), while S3M-E3/9AT is supplied in Cut Tape (CT) & Digi-Reel®. Selection depends on assembly line requirements and tape format compatibility.

Q: Why does S5M R7G have a higher current rating (5 A) than ACGRC307-HF (3 A)?

A: S5M R7G is a different product variant within the same voltage class and package family. The higher current rating reflects different internal die design and thermal characteristics. This part is suitable for substitution only when the application circuit can accommodate the increased current capacity without adverse effects.

Q: Is the forward voltage difference between ACGRC307-HF (1.15 V @ 3 A) and S3M-E3/57T (1.15 V @ 2.5 A) significant?

A: The forward voltage specification is measured at different current levels. ACGRC307-HF specifies Vf at 3 A, while S3M-E3/57T specifies Vf at 2.5 A. At the rated 3 A operating point, the actual forward voltage of S3M-E3/57T may differ slightly. Verify forward voltage characteristics at your specific operating current before final design approval.

Q: Can I use S3MHE3_A/I instead of S3MHE3_A/H?

A: Yes. Both parts are electrically and mechanically identical with automotive-grade qualification and AEC-Q101 certification. The difference is in the manufacturing lot or qualification variant designation. Selection between these two variants depends on availability and supply chain requirements. S3MHE3_A/H has higher inventory availability (21,650 units vs. 5,600 units).

Q: What does "Discontinued at DiGi Electronics" mean for S3M V7G and S5M R7G?

A: This designation indicates that these parts are no longer actively stocked or sold through DiGi Electronics distribution channels. However, the parts may remain available through other authorized distributors or direct manufacturer channels. For new designs, select parts with "Active" production status to ensure long-term supply continuity.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this document carry ROHS3 compliance certification, matching the environmental compliance profile of the ACGRC307-HF.

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