1N5404-TP Equivalent & Substitute Parts

Part Overview

The 1N5404-TP is a general-purpose rectifier diode rated for 400 V DC reverse voltage and 3 A average rectified current in a through-hole DO-201AD axial package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts are necessary for ongoing production and maintenance applications. Substitute diodes must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and sourcing constraints.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 3 A	V @ A
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	DO-201AD, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 1N5404-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 400 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Voltage - Forward (Vf) (Max) @ If: Must not exceed application circuit limits
Current - Reverse Leakage @ Vr: Must not exceed application circuit limits
Speed Classification: Standard or Fast Recovery acceptable

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (required for direct replacement)
Package / Case: DO-201AD or equivalent axial package (required for PCB fit)

Environmental & Compliance Requirements:

Operating Temperature - Junction: Must accommodate -55°C to 150°C range or broader
RoHS Status: ROHS3 Compliant preferred for regulatory alignment

Substitute parts are grouped into two categories: Direct Through-Hole Replacements (same package, same mounting) and Alternative Mounting Options (different package or mounting technology). Only parts meeting the electrical and mechanical criteria are listed as valid substitutes.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Ir @ Vr [µA]	Speed	Package	Mounting	Tj Range [°C]	Product Status	RoHS
1N5404-TP	Micro Commercial Co	400	3	1.0 @ 3	5 @ 400	Standard >500ns	DO-201AD	Through Hole	-55 to 150	Obsolete	ROHS3
1N5404-E3/54	Vishay General Semiconductor	400	3	1.2 @ 3	5 @ 400	Standard >500ns	DO-201AD	Through Hole	-50 to 150	Active	ROHS3
1N5404-E3/73	Vishay General Semiconductor	400	3	1.2 @ 3	5 @ 400	Standard >500ns	DO-201AD	Through Hole	-50 to 150	Active	ROHS3
1N5404G-T	Diodes Incorporated	400	3	1.1 @ 3	5 @ 400	Standard >500ns	DO-201AD	Through Hole	-65 to 150	Active	ROHS3
1N5404RLG	onsemi	400	3	1.0 @ 3	10 @ 400	Standard >500ns	DO-201AA / DO-27	Through Hole	-65 to 150	Not For New Designs	ROHS3
31GF4-E3/54	Vishay General Semiconductor	400	3	1.25 @ 3	20 @ 400	Fast ≤500ns	DO-201AD	Through Hole	-40 to 150	Active	ROHS3
31GF4-E3/73	Vishay General Semiconductor	400	3	1.25 @ 3	20 @ 400	Fast ≤500ns	DO-201AD	Through Hole	-40 to 150	Active	ROHS3
EGP30G	onsemi	400	3	1.25 @ 3	5 @ 400	Fast ≤500ns	DO-201AD	Through Hole	-65 to 150	Not For New Designs	ROHS3
GP30G-E3/54	Vishay General Semiconductor	400	3	1.1 @ 3	5 @ 400	Standard >500ns	DO-201AD	Through Hole	-65 to 175	Active	ROHS3
1N5418	Microchip Technology	400	3	1.5 @ 9	1 @ 400	Fast ≤500ns	SQ-MELF, B	Surface Mount	-65 to 175	Active	Non-compliant
1N6543	Microchip Technology	—	—	—	—	—	A-PKG	—	—	Active	Non-compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant, Through-Hole DO-201AD):

1N5404-E3/54 and 1N5404-E3/73 (Vishay General Semiconductor): These parts maintain identical electrical specifications to the 1N5404-TP with 400 V reverse voltage and 3 A average rectified current. Both are active products with ROHS3 compliance. Forward voltage is slightly elevated at 1.2 V versus 1.0 V on the original part. Operating temperature range is -50°C to 150°C, which covers the lower bound of the original -55°C specification. These are direct functional replacements with the same package footprint.
1N5404G-T (Diodes Incorporated): Active product with ROHS3 compliance, identical electrical ratings, and DO-201AD package. Forward voltage of 1.1 V is closer to the original specification. Operating temperature range extends to -65°C, providing broader thermal coverage than the original part.
GP30G-E3/54 (Vishay General Semiconductor, SUPERECTIFIER® series): Active product with ROHS3 compliance and identical electrical specifications. Forward voltage of 1.1 V matches the original closely. Operating temperature range extends to -65°C to 175°C, providing superior thermal performance. Standard recovery speed classification matches the original part.

Secondary Substitutes (Active Status, Through-Hole DO-201AD, with Considerations):

31GF4-E3/54 and 31GF4-E3/73 (Vishay General Semiconductor): Active products with ROHS3 compliance and DO-201AD package. These parts feature fast recovery characteristics (≤500ns) compared to the standard recovery of the original part. Forward voltage is 1.25 V, and reverse leakage is elevated at 20 µA. Operating temperature range is -40°C to 150°C, which does not extend to the original -55°C lower bound. Selection of these parts is appropriate only when fast recovery characteristics are beneficial and lower temperature operation is not required.
EGP30G (onsemi): Not For New Designs status indicates this part is in legacy phase. ROHS3 compliant with DO-201AD package. Fast recovery characteristics and forward voltage of 1.25 V. Operating temperature range is -65°C to 150°C. This part is suitable for replacement applications only, not for new designs.

Alternative Mounting (Not Recommended for Direct Replacement):

1N5418 (Microchip Technology): Surface mount SQ-MELF package. This part is not suitable for direct replacement of the through-hole 1N5404-TP without PCB redesign. RoHS non-compliant status presents regulatory concerns. Forward voltage specification is 1.5 V @ 9 A, which differs from the 3 A rating of the original part.

Legacy Status (Not Recommended for New Designs):

1N5404RLG (onsemi): Not For New Designs status. Reverse leakage is elevated at 10 µA. Package designation includes DO-201AA and DO-27 variants. This part is suitable for replacement of obsolete units only.
1N6543 (Microchip Technology): Insufficient electrical parameter data provided. RoHS non-compliant. Not recommended for selection.

Recommendation Summary:

For direct replacement of the obsolete 1N5404-TP in existing applications, select 1N5404-E3/54, 1N5404G-T, or GP30G-E3/54. All three maintain electrical compatibility, ROHS3 compliance, and through-hole DO-201AD packaging. For new designs, 1N5404-E3/54 or 1N5404G-T are preferred due to active product status and established supply chains.

Frequently Asked Questions (FAQ)

Q: Can I use 1N5404-E3/54 as a direct replacement for 1N5404-TP?

A: Yes. Both parts share identical voltage (400 V) and current (3 A) ratings, the same DO-201AD through-hole axial package, and ROHS3 compliance. Forward voltage is slightly higher at 1.2 V versus 1.0 V on the original part. Operating temperature range is -50°C to 150°C, which covers the application range of the original part except for the -55°C lower bound. For applications operating above -50°C, this part is a direct functional replacement.

Q: What is the difference between standard recovery and fast recovery diodes?

A: Recovery speed refers to the time required for a diode to transition from conducting to blocking state when reverse bias is applied. Standard recovery diodes (>500ns) are suitable for general-purpose rectification and power supply applications. Fast recovery diodes (≤500ns) are used in high-frequency switching applications where reduced switching losses are critical. The 1N5404-TP is a standard recovery device. Substitutes with fast recovery characteristics (31GF4-E3/54, 31GF4-E3/73, EGP30G) are electrically compatible but may exhibit different performance in high-frequency circuits.

Q: Why is 1N5418 not recommended as a substitute?

A: The 1N5418 is a surface-mount device in SQ-MELF package, whereas the 1N5404-TP is a through-hole axial component. Direct substitution requires PCB redesign and different assembly processes. Additionally, the 1N5418 is RoHS non-compliant, which may conflict with regulatory requirements. The forward voltage specification (1.5 V @ 9 A) differs from the original part's rating at 3 A, making direct electrical comparison difficult.

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

A: Parts designated as "Not For New Designs" are in legacy or end-of-life phase. Manufacturers continue to produce these parts for existing customer applications but do not recommend their use in new product development. Parts with this status may have limited availability and extended lead times. For new designs, select parts with "Active" product status such as 1N5404-E3/54, 1N5404G-T, or GP30G-E3/54.

Q: Can I use a diode with higher reverse voltage rating than 400 V?

A: Yes. A diode rated for higher reverse voltage (e.g., 600 V or 1000 V) is electrically compatible with a 400 V application. The higher voltage rating provides additional safety margin and does not degrade circuit performance. However, higher voltage diodes typically exhibit increased forward voltage drop and capacitance, which may affect circuit efficiency and switching characteristics. For general-purpose rectification, maintaining the 400 V rating is preferred.

Q: What is the significance of operating temperature range -55°C to 150°C?

A: The operating temperature range specifies the junction temperature limits within which the diode maintains its electrical specifications. The 1N5404-TP is rated for -55°C to 150°C. Substitute parts with narrower ranges (e.g., -50°C to 150°C) may not be suitable for applications requiring operation at -55°C. Substitute parts with extended ranges (e.g., -65°C to 175°C) provide broader environmental coverage and are preferred for demanding applications.

Q: Are all DO-201AD packages physically identical?

A: Yes. The DO-201AD package is a standardized through-hole axial package with fixed lead diameter and spacing. All diodes in DO-201AD package are physically interchangeable on PCBs designed for this package. However, the 1N5404RLG is available in DO-201AA and DO-27 variants, which have slightly different physical dimensions. Verify package designation before substitution to ensure mechanical compatibility.

Q: What is ROHS3 compliance?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) is a European Union regulation that restricts the use of specific hazardous materials in electrical and electronic equipment. ROHS3 compliant components do not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers above specified thresholds. For applications subject to EU regulations or customer requirements, ROHS3 compliance is mandatory. The 1N5404-TP and most recommended substitutes are ROHS3 compliant.

Q: Why does reverse leakage current vary among substitute parts?

A: Reverse leakage current is the small current that flows through a reverse-biased diode. It depends on semiconductor material quality, doping concentration, and manufacturing process. The 1N5404-TP specifies 5 µA @ 400 V. Substitutes with higher leakage (e.g., 1N5404RLG at 10 µA, 31GF4-E3/54 at 20 µA) are still acceptable for most applications, as leakage current is typically negligible compared to forward current. For precision analog circuits or high-impedance applications, lower leakage is preferred.

Q: Can I mix different substitute parts in the same circuit?

A: Yes, provided all parts meet the electrical requirements of the application. However, mixing parts with different forward voltage characteristics (e.g., 1.0 V versus 1.25 V) may result in unequal current distribution in parallel configurations or voltage regulation variations in series configurations. For critical applications, use parts from the same manufacturer and part number to ensure consistent performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message