SF58G-AP Equivalent & Substitute Parts

Part Overview

The SF58G-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 5 A average rectified current in a DO-201AD axial through-hole package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility within the same functional category.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	5 A
Voltage - Forward (Vf) (Max) @ If	1.75 V @ 5 A
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Package / Case	DO-201AD, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SF58G-AP is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Operating Temperature Range: -65°C ~ 150°C

Allowable Variation Criteria:

Current - Average Rectified (Io): May be equal to or greater than 5 A
Voltage - Forward (Vf): May be equal to or less than 1.75 V @ rated current
Reverse Recovery Time (trr): May be equal to or less than 35 ns
Current - Reverse Leakage: May be equal to or less than 5 µA @ 600 V

The EGP30J from onsemi meets the mandatory matching criteria for voltage rating, package type, and mounting configuration. However, the current rating of 3 A is lower than the SF58G-AP specification of 5 A, which restricts its use to applications requiring 3 A or less.

Parameter Comparison

Parameter	SF58G-AP (Micro Commercial Co)	EGP30J (onsemi)
Voltage - DC Reverse (Vr) (Max)	600 V	600 V
Current - Average Rectified (Io)	5 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.75 V @ 5 A	1.7 V @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Not For New Designs

Engineering Selection Recommendations

SF58G-AP (Primary Selection): The SF58G-AP is the preferred component for new designs. It maintains Active product status, ensuring continued manufacturer support and supply availability. The part is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The 5 A current rating and 35 ns reverse recovery time provide optimal performance for general-purpose rectification applications.

EGP30J (Constrained Substitution): The EGP30J is suitable only for applications where the required average rectified current does not exceed 3 A. This substitute shares the 600 V voltage rating, DO-201AD package, and through-hole mounting configuration. However, the EGP30J carries a "Not For New Designs" product status designation, indicating that onsemi has discontinued active development and support for this component. The reverse recovery time of 75 ns is longer than the SF58G-AP specification, which may impact switching performance in high-frequency applications. The EGP30J is RoHS3 compliant and REACH unaffected.

Selection between these parts must be based on actual circuit current requirements and product lifecycle considerations.

Frequently Asked Questions (FAQ)

Q: Can the EGP30J replace the SF58G-AP in all applications?

A: No. The EGP30J has a maximum average rectified current rating of 3 A, compared to the SF58G-AP rating of 5 A. The EGP30J is suitable only for circuits requiring 3 A or less. Additionally, the EGP30J carries a "Not For New Designs" status, making it unsuitable for new product development.

Q: Are the packages physically identical?

A: Yes. Both the SF58G-AP and EGP30J use the DO-201AD axial through-hole package. Physical dimensions and PCB footprints are identical, allowing direct mechanical substitution without layout modifications.

Q: What is the significance of the reverse recovery time difference?

A: The SF58G-AP has a reverse recovery time of 35 ns, while the EGP30J is specified at 75 ns. In applications with fast switching frequencies or stringent switching performance requirements, the longer recovery time of the EGP30J may result in increased switching losses and reduced efficiency.

Q: Are both parts RoHS compliant?

A: Yes. Both the SF58G-AP and EGP30J are RoHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What does "Not For New Designs" mean for the EGP30J?

A: This designation indicates that onsemi has classified the EGP30J as a legacy component. While existing inventory may be available, the manufacturer does not recommend this part for new product designs. Long-term availability and technical support cannot be guaranteed.

Q: Can I use the SF58G-AP in place of the EGP30J?

A: Yes. The SF58G-AP exceeds the electrical specifications of the EGP30J in current rating (5 A vs. 3 A) and reverse recovery time (35 ns vs. 75 ns). The SF58G-AP is a direct upgrade suitable for any application previously designed with the EGP30J, provided the circuit can accommodate the higher current capability.

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