1N5406-TP Equivalent & Substitute Parts

Part Overview

The 1N5406-TP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. Manufactured by Micro Commercial Co, this part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 3 A
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Through Hole
Package / Case	DO-201AD, Axial
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 1N5406-TP are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes maintain identical electrical specifications and package configuration, differing only in product status or packaging format. These parts satisfy all functional requirements without circuit modification.

Upgrade Substitutes provide equivalent or enhanced electrical performance with extended operating temperature ranges or improved recovery characteristics. These parts are suitable for direct replacement with potential performance benefits.

Similar Substitutes share the core electrical ratings (600 V, 3 A) but may differ in forward voltage characteristics, recovery speed, reverse leakage current, or package variants. Selection requires verification of circuit tolerance to parameter variations.

Substitution eligibility is determined by the following criteria:

Voltage - DC Reverse (Vr) (Max): 600 V (required)
Current - Average Rectified (Io): 3 A (required)
Mounting Type: Through Hole (required)
Package / Case: DO-201AD or equivalent axial configuration (required)
Operating Temperature Range: Must encompass application requirements
RoHS Compliance: ROHS3 Compliant preferred for new designs

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Package	Temp Range	RoHS
1N5406-TP	Micro Commercial Co	Obsolete	600 V	3 A	1 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-55°C ~ 150°C	ROHS3
1N5406GP-TP	Micro Commercial Co	Active	600 V	3 A	1.1 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-55°C ~ 150°C	ROHS3
GP30J-E3/54	Vishay General Semiconductor	Active	600 V	3 A	1.1 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-65°C ~ 175°C	ROHS3
GP30J-E3/73	Vishay General Semiconductor	Active	600 V	3 A	1.1 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-65°C ~ 175°C	ROHS3
1N5190	Microchip Technology	Active	600 V	3 A	1.5 V @ 9 A	Fast ≤500ns	2 µA @ 600 V	B, Axial	-65°C ~ 175°C	Non-compliant
1N5406-E3/54	Vishay General Semiconductor	Active	600 V	3 A	1.2 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-50°C ~ 150°C	ROHS3
1N5406-E3/73	Vishay General Semiconductor	Active	600 V	3 A	1.2 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-50°C ~ 150°C	ROHS3
1N5406-G	Comchip Technology	Active	600 V	3 A	1 V @ 3 A	Standard >500ns	5 µA @ 600 V	DO-201AD	-65°C ~ 125°C	ROHS3
1N5406RLG	onsemi	Not For New Designs	600 V	3 A	1 V @ 3 A	Standard >500ns	10 µA @ 600 V	DO-201AA/DO-27	-65°C ~ 150°C	ROHS3
1N5420	Microchip Technology	Active	600 V	3 A	1.5 V @ 9 A	Fast ≤500ns	1 µA @ 600 V	B, Axial	-65°C ~ 175°C	Non-compliant

Engineering Selection Recommendations

For New Designs with RoHS3 Compliance Requirement:

Select from active-status parts with ROHS3 Compliant certification: 1N5406GP-TP, GP30J-E3/54, GP30J-E3/73, 1N5406-E3/54, 1N5406-E3/73, or 1N5406-G. The Vishay GP30J series (GP30J-E3/54 and GP30J-E3/73) offer extended operating temperature range (-65°C ~ 175°C) compared to the original 1N5406-TP specification (-55°C ~ 150°C), providing enhanced thermal margin for demanding applications.

For Direct Replacement of Obsolete 1N5406-TP:

The 1N5406GP-TP from Micro Commercial Co provides the closest electrical match with identical forward voltage specification (1 V @ 3 A) and temperature range. This part maintains the same manufacturer lineage and is currently in active production status.

For Applications Requiring Extended Temperature Range:

GP30J-E3/54 and GP30J-E3/73 from Vishay General Semiconductor extend the upper junction temperature limit to 175°C (versus 150°C for the original part) while maintaining all core electrical specifications. These parts are designated as SUPERECTIFIER® series and are suitable for high-reliability applications.

For Applications with RoHS Non-Compliance Tolerance:

1N5190 and 1N5420 from Microchip Technology provide fast recovery characteristics (≤500ns) with lower reverse leakage current. These parts are suitable only for applications where RoHS3 compliance is not mandated. Forward voltage specification differs (1.5 V @ 9 A) and must be evaluated for circuit compatibility.

Parts Not Recommended for New Designs:

1N5406RLG from onsemi carries product status "Not For New Designs" and exhibits higher reverse leakage current (10 µA @ 600 V) compared to the original specification (5 µA @ 600 V). This part is suitable only for legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can 1N5406GP-TP be used as a direct replacement for 1N5406-TP?

A: Yes. Both parts share identical electrical ratings (600 V, 3 A), forward voltage specification (1 V @ 3 A nominal), recovery speed (Standard >500ns), and operating temperature range (-55°C ~ 150°C). The primary difference is product status: 1N5406-TP is obsolete while 1N5406GP-TP is active production. Packaging differs (bulk versus tape & reel), but the component itself is functionally equivalent.

Q: What is the difference between GP30J-E3/54 and GP30J-E3/73?

A: Both parts are electrically identical with 600 V, 3 A ratings and identical forward voltage (1.1 V @ 3 A). The designation suffix indicates packaging format: E3/54 is supplied in cut tape (CT) packaging, while E3/73 is also supplied in cut tape (CT). Both offer extended operating temperature range (-65°C ~ 175°C) compared to the original 1N5406-TP.

Q: Why do 1N5190 and 1N5420 show different forward voltage specifications?

A: These Microchip parts specify forward voltage at 9 A (1.5 V @ 9 A) rather than at 3 A. This reflects different measurement conditions and does not indicate incompatibility. However, forward voltage behavior at the actual operating current (3 A) must be evaluated for circuit compatibility. These parts also feature fast recovery (≤500ns) versus standard recovery (>500ns) for the original part.

Q: Is the 1N5406-G suitable for applications requiring extended temperature operation?

A: The 1N5406-G from Comchip Technology operates over -65°C ~ 125°C, which extends the lower temperature limit but reduces the upper limit to 125°C compared to the original 150°C specification. This part is suitable for applications requiring enhanced cold-temperature performance but not for high-temperature environments.

Q: Can parts with different package designations (DO-201AD versus B, Axial) be used interchangeably?

A: DO-201AD and B, Axial are equivalent package designations for axial through-hole diodes. Physical dimensions and lead spacing are compatible. However, verify PCB footprint compatibility before substitution, as legacy designs may have specific pad spacing requirements.

Q: What is the significance of RoHS3 Compliance status?

A: ROHS3 Compliant parts meet Restriction of Hazardous Substances Directive requirements and are suitable for applications subject to environmental regulations. Parts marked as RoHS non-compliant (1N5190, 1N5420) contain restricted substances and are limited to applications where regulatory exemptions apply. For new designs, ROHS3 Compliant parts are required.

Q: Why does 1N5406RLG show higher reverse leakage current (10 µA @ 600 V)?

A: Higher reverse leakage current indicates increased minority carrier generation within the diode junction. While the part meets 600 V, 3 A specifications, the elevated leakage may impact circuit performance in sensitive applications. The "Not For New Designs" status reflects this limitation. This part is suitable only for legacy system replacement where original specifications are known to be acceptable.

Q: Are Vishay 1N5406-E3/54 and 1N5406-E3/73 interchangeable with GP30J-E3/54 and GP30J-E3/73?

A: The 1N5406-E3 series and GP30J-E3 series share identical electrical ratings (600 V, 3 A) and package configuration (DO-201AD). However, 1N5406-E3 parts operate over -50°C ~ 150°C while GP30J-E3 parts extend to -65°C ~ 175°C. For applications within the narrower temperature range, both are functionally equivalent. For extended temperature requirements, GP30J-E3 series is required.

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