EGP30B Equivalent & Substitute Parts

Part Overview

The EGP30B is a general-purpose rectifier diode manufactured by onsemi, rated for 100 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The EGP30B features fast recovery characteristics with a reverse recovery time of 50 ns, suitable for applications requiring rapid switching performance.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 3 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 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 EGP30B is determined by strict electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Package / Case: Must be DO-201AD or equivalent axial through-hole configuration
Mounting Type: Must be Through Hole

Secondary Compatibility Factors:

Forward voltage (Vf) characteristics within acceptable operating ranges
Reverse leakage current specifications
Operating temperature range compatibility
RoHS and REACH compliance status

Substitute parts are grouped into two categories:

Category 1: Direct Electrical Equivalents (Fast Recovery) Parts maintaining fast recovery characteristics (≤ 500ns) with matching or superior electrical specifications and DO-201AD packaging.

Category 2: Functional Equivalents (Standard Recovery) Parts meeting all electrical and mechanical requirements with standard recovery characteristics (> 500ns), suitable for applications where switching speed is not critical.

Category 3: Alternative Package Configurations Parts meeting electrical requirements in alternative through-hole axial packages (DO-201AA, DO-27, SOD-64) for applications where package form factor flexibility exists.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ 3A	Speed	trr	Package	Status
EGP30B	onsemi	100 V	3 A	950 mV	Fast Recovery ≤ 500ns	50 ns	DO-201AD	Obsolete
1N5401-E3/54	Vishay General Semiconductor	100 V	3 A	1.2 V	Standard Recovery > 500ns	—	DO-201AD	Active
1N5401-G	Comchip Technology	100 V	3 A	950 mV	Standard Recovery > 500ns	—	DO-201AD	Active
1N5401G	Good-Ark Semiconductor	100 V	3 A	1.1 V	Standard Recovery > 500ns	—	DO-201AD	Active
1N5401RLG	onsemi	100 V	3 A	1 V	Standard Recovery > 500ns	—	DO-201AA, DO-27	Not For New Designs
1N5401GP-AP	Micro Commercial Co	100 V	3 A	1.1 V	Standard Recovery > 500ns	—	DO-201AD	Active
MR851RLG	onsemi	100 V	3 A	1.25 V	Fast Recovery ≤ 500ns	300 ns	DO-201AA, DO-27	Active
BYT56B-TAP	Vishay General Semiconductor	100 V	3 A	1.4 V	Fast Recovery ≤ 500ns	100 ns	SOD-64	Active
BYT56B-TR	Vishay General Semiconductor	100 V	3 A	1.4 V	Fast Recovery ≤ 500ns	100 ns	SOD-64	Active
FR302GP-AP	Micro Commercial Co	100 V	3 A	1.3 V	Fast Recovery ≤ 500ns	150 ns	DO-201AD	Active
GI501-E3/54	Vishay General Semiconductor	100 V	3 A	1.1 V @ 9.4 A	Standard Recovery > 500ns	2 µs	DO-201AD	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

The 1N5401-G (Comchip Technology) provides the closest electrical match to the EGP30B, with identical forward voltage specification (950 mV @ 3 A) and matching package configuration (DO-201AD). This part is active and ROHS3 compliant. However, it operates at standard recovery speed (> 500ns) rather than fast recovery, which is acceptable for applications not requiring the 50 ns switching performance of the original EGP30B.

For Fast Recovery Applications:

The FR302GP-AP (Micro Commercial Co) maintains fast recovery characteristics (≤ 500ns, 150 ns trr) in the DO-201AD package with active product status. The MR851RLG (onsemi) offers fast recovery (≤ 500ns, 300 ns trr) but in alternative axial packages (DO-201AA, DO-27).

For High-Volume Production:

The 1N5401-E3/54 (Vishay General Semiconductor) offers the largest available inventory (62,000 pcs) with active status, ROHS3 compliance, and DO-201AD packaging. Forward voltage is 1.2 V @ 3 A, representing a 250 mV increase over the EGP30B specification.

For Alternative Package Configurations:

The BYT56B-TAP and BYT56B-TR (Vishay General Semiconductor) provide fast recovery performance in SOD-64 axial packages with active status. These are suitable only for applications where package form factor flexibility is available.

Compliance Considerations:

All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original EGP30B specifications. Product status should be evaluated based on design phase: active parts are suitable for new designs, while "Not For New Designs" classifications should be avoided in new product development.

Frequently Asked Questions (FAQ)

Q: Can I use a standard recovery diode (> 500ns) as a substitute for the fast recovery EGP30B (50 ns)?

A: Yes, for applications where switching speed is not a critical design parameter. Standard recovery diodes operate correctly in rectification circuits but exhibit slower reverse recovery characteristics. Verify that your circuit design does not depend on the fast recovery performance before substitution.

Q: What is the difference between DO-201AD and DO-201AA packaging?

A: Both are axial through-hole packages with identical electrical performance. DO-201AD and DO-201AA refer to different physical dimensions and lead configurations. Verify PCB footprint compatibility before substituting parts with different package designations.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and REACH unaffected status, matching the original EGP30B specifications.

Q: Why does the 1N5401-E3/54 have a higher forward voltage (1.2 V) than the EGP30B (950 mV)?

A: Forward voltage variation is a normal characteristic of semiconductor manufacturing and device design. The 1N5401-E3/54 operates within acceptable rectifier specifications. Verify that your circuit design accommodates the higher forward voltage drop before substitution.

Q: Can I substitute the EGP30B with a part in SOD-64 packaging?

A: SOD-64 is a different through-hole axial package form factor. Substitution is possible only if your PCB design accommodates the alternative package dimensions. The BYT56B-TAP and BYT56B-TR are electrically equivalent but require PCB layout verification.

Q: What is the significance of "Not For New Designs" product status?

A: Parts marked "Not For New Designs" are in mature or declining production phases. While electrically functional, they should not be selected for new product development. Use active status parts for new designs to ensure long-term supply availability.

Q: How do I determine which substitute part is best for my application?

A: Evaluate based on three criteria: (1) Electrical requirements—verify that voltage, current, and recovery speed specifications meet your circuit needs; (2) Package compatibility—confirm PCB footprint matches the selected package configuration; (3) Supply status—prioritize active parts for new designs and high-volume production.

Q: Is the reverse leakage current specification critical for substitution?

A: Reverse leakage current (typically 5–10 µA @ 100 V) is generally non-critical for standard rectification applications. All substitute parts maintain leakage specifications within acceptable ranges. Verify only if your application involves high-impedance circuits or precision analog functions.

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