DSA26G Equivalent & Substitute Parts

Part Overview

The DSA26G is a general-purpose rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 2.6 A average rectified current in an axial through-hole package. This part is classified as obsolete, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing manufacturing or repair operations for legacy systems utilizing this component.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2.6	A
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 2.6 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Mounting Type	Through Hole	—
Package / Case	Axial	—
Operating Temperature - Junction (Max)	150	°C
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution of the DSA26G is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage rating of 600 V to ensure equivalent electrical performance under reverse bias conditions.

Current Rating: Substitute parts must support a minimum average rectified current of 2.6 A. Parts rated at 3 A or higher satisfy this requirement with margin.

Recovery Speed: The DSA26G operates with standard recovery characteristics (>500 ns). Substitute parts with standard or faster recovery speeds are electrically compatible.

Reverse Leakage Current: The DSA26G exhibits 10 µA reverse leakage at 600 V. Substitute parts with equal or lower reverse leakage maintain equivalent performance.

Package and Mounting: The DSA26G uses an axial through-hole package. Substitute parts must employ compatible through-hole axial or DO-201AD packages to ensure mechanical and electrical compatibility in existing circuit layouts.

Operating Temperature: The DSA26G operates to a maximum junction temperature of 150°C. Substitute parts with equal or higher maximum junction temperature ratings are acceptable.

All identified substitute parts meet or exceed these criteria, enabling direct functional replacement in applications designed for the DSA26G.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	Ir @ Vr [µA]	Package	Tj (Max) [°C]	Product Status
DSA26G	onsemi	600	2.6	1.05 @ 2.6 A	Standard >500ns	10 @ 600 V	Axial	150	Obsolete
1N5406G	Taiwan Semiconductor Corporation	600	3	1 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	150	Active
1N5406RLG	onsemi	600	3	1 @ 3 A	Standard >500ns	10 @ 600 V	DO-201AA, DO-27, Axial	150	Not For New Designs
EGP30J	onsemi	600	3	1.7 @ 3 A	Fast Recovery ≤500ns	5 @ 600 V	DO-201AD, Axial	150	Not For New Designs
1N5406-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.2 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	150	Active
1N5406-E3/73	Vishay General Semiconductor - Diodes Division	600	3	1.2 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	150	Active
1N5406-G	Comchip Technology	600	3	1 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	125	Active
31GF6-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.6 @ 3 A	Fast Recovery ≤500ns	20 @ 600 V	DO-201AD, Axial	150	Active
BY253P-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.1 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	150	Active
GI506-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.1 @ 9.4 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	150	Active
GP30J-E3/54	Vishay General Semiconductor - Diodes Division	600	3	1.1 @ 3 A	Standard >500ns	5 @ 600 V	DO-201AD, Axial	175	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status):

The following parts are recommended as primary substitutes due to active product status and full compliance with RoHS3 and REACH requirements:

1N5406-E3/54 and 1N5406-E3/73 (Vishay General Semiconductor - Diodes Division) are direct functional equivalents with 600 V rating, 3 A current capacity, standard recovery speed, and 150°C maximum junction temperature. Both parts are in active production status. The primary distinction between these variants is packaging configuration (Tape & Reel vs. standard cut tape).

1N5406G (Taiwan Semiconductor Corporation) provides equivalent electrical performance with 600 V, 3 A rating and standard recovery characteristics. This part is in active production status.

BY253P-E3/54 (Vishay General Semiconductor - Diodes Division) offers 600 V, 3 A rating with forward voltage of 1.1 V at 3 A and standard recovery speed. This part is in active production status and RoHS3 compliant.

GP30J-E3/54 (Vishay General Semiconductor - Diodes Division) is rated for 600 V, 3 A with extended maximum junction temperature of 175°C. This part is in active production status, RoHS3 compliant, and part of the SUPERECTIFIER® series.

Secondary Substitutes (Not For New Designs Status):

1N5406RLG (onsemi) and EGP30J (onsemi) are available as substitutes but carry "Not For New Designs" status. These parts meet electrical requirements but should be reserved for legacy system support or repair applications only.

Specialized Alternatives:

31GF6-E3/54 (Vishay General Semiconductor - Diodes Division) features fast recovery characteristics (≤500 ns) with 30 ns reverse recovery time, suitable for applications requiring faster switching performance. This part is in active production status.

GI506-E3/54 (Vishay General Semiconductor - Diodes Division) supports higher forward current capability (9.4 A) while maintaining 600 V reverse voltage rating, providing additional design margin for current-intensive applications.

1N5406-G (Comchip Technology) is in active production status but operates to a maximum junction temperature of 125°C, which is 25°C lower than the DSA26G. This limitation should be evaluated against specific application thermal requirements.

All recommended substitutes maintain through-hole axial or compatible DO-201AD package configurations, ensuring mechanical compatibility with existing PCB layouts designed for the DSA26G.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DSA26G with any of the listed substitute parts?

A: Yes, all listed substitute parts meet the minimum electrical requirements for DSA26G replacement. The 600 V reverse voltage rating, 2.6 A minimum current capacity, and through-hole axial package compatibility are maintained across all substitutes. However, selection should prioritize parts with active product status for new applications or ongoing production.

Q: What is the difference between 1N5406-E3/54 and 1N5406-E3/73?

A: Both parts are electrically identical with 600 V rating, 3 A current capacity, and standard recovery speed. The primary difference is packaging configuration: 1N5406-E3/54 is supplied in Tape & Reel format, while 1N5406-E3/73 is supplied in cut tape format. Moisture Sensitivity Level (MSL) is also specified as 1 (Unlimited) for 1N5406-E3/73. Selection depends on procurement and assembly requirements.

Q: Why do some substitutes have higher current ratings (3 A vs. 2.6 A)?

A: Higher current ratings provide design margin and ensure the substitute part operates within safe limits when replacing the DSA26G in existing circuits. A 3 A rated diode can safely handle the 2.6 A requirement of the original design with reduced stress and improved reliability.

Q: Are fast recovery diodes like EGP30J and 31GF6-E3/54 suitable replacements?

A: Fast recovery diodes are electrically compatible with the DSA26G and offer improved switching performance due to reduced reverse recovery time. EGP30J exhibits 75 ns recovery time, and 31GF6-E3/54 exhibits 30 ns recovery time, compared to the DSA26G standard recovery (>500 ns). These parts are suitable for applications where faster switching is beneficial or required.

Q: What does "Not For New Designs" status mean?

A: Parts marked "Not For New Designs" (such as 1N5406RLG and EGP30J) are still available and functional but are no longer recommended for new product development. These parts should be used only for legacy system support, repair, or replacement of existing installations. For new designs, select parts with "Active" product status.

Q: Does the DSA26G package type match all substitute parts?

A: The DSA26G uses an axial through-hole package. Most substitutes employ DO-201AD or DO-27 packages, which are mechanically and electrically compatible axial configurations. All listed substitutes maintain through-hole mounting, ensuring compatibility with existing PCB designs. Verify specific package dimensions if space constraints are critical.

Q: What is the significance of RoHS3 compliance on substitute parts?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. All active substitute parts listed are RoHS3 compliant, ensuring compatibility with modern manufacturing standards and environmental regulations. The DSA26G, being obsolete, does not carry RoHS3 designation.

Q: Can I use GP30J-E3/54 in high-temperature applications?

A: Yes, GP30J-E3/54 is rated for a maximum junction temperature of 175°C, which is 25°C higher than the DSA26G (150°C). This extended temperature rating makes it suitable for applications operating at elevated ambient or junction temperatures. However, verify that other circuit components can tolerate the same temperature range.

Q: What is the difference between standard and fast recovery diodes in terms of application impact?

A: Standard recovery diodes (DSA26G, 1N5406 variants, BY253P-E3/54) exhibit recovery times exceeding 500 ns and are suitable for general-purpose rectification and power supply applications. Fast recovery diodes (EGP30J with 75 ns, 31GF6-E3/54 with 30 ns) reduce switching losses and electromagnetic interference, making them preferable for high-frequency switching applications. Selection depends on circuit operating frequency and efficiency requirements.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary significantly among substitutes. For example, EGP30J has 300,400 pieces in stock, while 1N5406-E3/73 has 1,895 pieces. For high-volume production or long-term supply assurance, parts with higher inventory levels provide greater availability. Consult current inventory status with suppliers for specific procurement timelines.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message