ACGRC503-G General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The ACGRC503-G is a general purpose rectifier diode manufactured by Comchip Technology, rated for 200V DC reverse voltage and 5A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to support ongoing procurement requirements and design continuity for applications currently utilizing this diode.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	200	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) Maximum @ If	1.15	V @ 5 A
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Recovery Speed	Standard >500ns, >200mA (Io)	-
Capacitance @ Vr, F	25	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AB, SMC	-
Grade	Automotive	-
Qualification	AEC-Q101	-

Substitute Part Grouping Explanation

Substitution eligibility for the ACGRC503-G is determined by the following critical parameters:

Primary Electrical Requirements:

Voltage - DC Reverse (Vr) Maximum: 200V minimum
Current - Average Rectified (Io): 5A minimum
Package / Case: DO-214AB (SMC) surface mount
Operating Temperature Range: -55°C to 150°C minimum

Secondary Compliance Requirements:

Automotive Grade classification
AEC-Q101 qualification
RoHS3 compliance

Substitute parts must satisfy all primary electrical requirements and maintain automotive-grade qualification to ensure functional and regulatory compatibility. Parts with lower current ratings or different package types are not suitable direct substitutes.

Parameter Comparison

Parameter	ACGRC503-G (Main Part)	ACGRC503-HF (Substitute)	S3D-TP (Substitute)
Manufacturer	Comchip Technology	Comchip Technology	Micro Commercial Co
Voltage - DC Reverse (Vr) Max	200 V	200 V	200 V
Current - Average Rectified (Io)	5 A	5 A	3 A
Voltage - Forward (Vf) Max @ If	1.15 V @ 5 A	1.15 V @ 5 A	1.2 V @ 3 A
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V	10 µA @ 200 V
Recovery Speed	Standard >500ns, >200mA	Standard >500ns, >200mA	Standard >500ns, >200mA
Capacitance @ Vr, F	25 pF @ 4V, 1MHz	25 pF @ 4V, 1MHz	Not specified
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Grade	Automotive	Automotive	Not specified
Qualification	AEC-Q101	AEC-Q101	Not specified
Product Status	Last Time Buy	Active	Not For New Designs
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

ACGRC503-HF (Comchip Technology):

The ACGRC503-HF is the primary equivalent substitute for the ACGRC503-G. Both parts are manufactured by Comchip Technology and share identical electrical specifications: 200V reverse voltage, 5A average rectified current, 1.15V forward voltage at 5A, and 5µA reverse leakage current. Both maintain automotive grade classification with AEC-Q101 qualification and identical operating temperature range (-55°C to 150°C). The ACGRC503-HF is currently in Active product status, making it the recommended choice for design continuity. Packaging and mounting type are identical (DO-214AB, SMC surface mount).

S3D-TP (Micro Commercial Co):

The S3D-TP is a partial substitute with significant limitations. While it maintains the same 200V reverse voltage rating and DO-214AB package, the current rating is reduced to 3A, which is below the 5A requirement of the main part. This part is classified as Not For New Designs, indicating discontinued or restricted availability. The reverse leakage current is higher at 10µA compared to 5µA for the main part. Automotive grade and AEC-Q101 qualification are not specified for this part. The S3D-TP is suitable only for applications with reduced current requirements (3A or less) and should not be used as a direct replacement in designs requiring the full 5A rating.

Frequently Asked Questions (FAQ)

Q: Can ACGRC503-HF be used as a direct replacement for ACGRC503-G?

A: Yes. The ACGRC503-HF is a direct equivalent substitute. Both parts share identical electrical specifications (200V, 5A, 1.15V forward voltage), automotive grade classification, AEC-Q101 qualification, and DO-214AB package. The primary difference is product status: ACGRC503-HF is Active while ACGRC503-G is Last Time Buy.

Q: Is S3D-TP a suitable substitute for ACGRC503-G?

A: No, S3D-TP is not a suitable direct substitute. The current rating is reduced to 3A versus the required 5A. Additionally, S3D-TP is classified as Not For New Designs and lacks specified automotive grade and AEC-Q101 qualification. Use S3D-TP only in applications with maximum current requirements of 3A or less.

Q: What are the critical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Voltage - DC Reverse rating of 200V minimum, (2) Current - Average Rectified rating of 5A minimum, (3) DO-214AB (SMC) package type, (4) Operating temperature range of -55°C to 150°C, and (5) Automotive grade with AEC-Q101 qualification for applications requiring these certifications.

Q: Are there packaging differences between the main part and substitutes?

A: All three parts use identical DO-214AB (SMC) surface mount packaging. No PCB layout or mounting modifications are required when substituting ACGRC503-G with ACGRC503-HF.

Q: What is the significance of the Last Time Buy status for ACGRC503-G?

A: Last Time Buy status indicates that the manufacturer has discontinued production and existing inventory represents the final available stock. This status necessitates identification of active substitute parts for future procurement and design continuity.

Q: How do forward voltage specifications compare between parts?

A: ACGRC503-G and ACGRC503-HF both specify 1.15V maximum forward voltage at 5A. S3D-TP specifies 1.2V maximum forward voltage, but this is measured at 3A, not 5A, making direct comparison invalid due to different test conditions.

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