1N5400-TP Equivalent & Substitute Parts

Part Overview

The 1N5400-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging and recovery speed characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	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 @ 50 V
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 1N5400-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50 V
Current - Average Rectified (Io): Must equal or exceed 3 A
Voltage - Forward (Vf) (Max) @ If: Must not exceed 1.2 V @ 3 A for standard recovery devices
Current - Reverse Leakage @ Vr: Must not exceed 10 µA @ 50 V
Recovery Speed: Standard recovery (>500ns) or fast recovery (≤500ns) acceptable

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (axial configuration)
Package / Case: DO-201AD, DO-27, or equivalent axial packages
Operating Temperature Range: Must support -55°C to 150°C minimum

Compliance Requirements:

RoHS Status: ROHS3 Compliant preferred
REACH Status: REACH Unaffected

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical and mechanical specifications with active product status) and Similar Alternatives (compatible electrical specifications with minor variations in forward voltage, recovery time, or package designation).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	Ir @ Vr [µA]	Package	Product Status	RoHS
1N5400-TP	Micro Commercial Co	50	3	1.0 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Obsolete	ROHS3
HER301GA-G	Comchip Technology	50	3	1.0 @ 3A	Fast ≤500ns	5 @ 50V	DO-27	Active	ROHS3
HER301GT-G	Comchip Technology	50	3	1.0 @ 3A	Fast ≤500ns	5 @ 50V	DO-27	Active	ROHS3
1N5400-E3/54	Vishay General Semiconductor	50	3	1.2 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Active	ROHS3
1N5400-E3/73	Vishay General Semiconductor	50	3	1.2 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Active	ROHS3
1N5400-G	Comchip Technology	50	3	1.0 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Active	ROHS3
1N5400G	Taiwan Semiconductor Corporation	50	3	1.1 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Active	ROHS3
1N5400G-T	Diodes Incorporated	50	3	1.1 @ 3A	Standard >500ns	5 @ 50V	DO-201AD	Active	ROHS3
1N5400RLG	onsemi	50	3	1.0 @ 3A	Standard >500ns	10 @ 50V	DO-27	Not For New Designs	ROHS3
1N5415	Microchip Technology	50	3	1.5 @ 9A	Fast ≤500ns	1 @ 50V	B, Axial	Active	Non-compliant
1N5802	Microchip Technology	50	1	0.875 @ 1A	Fast ≤500ns	1 @ 50V	A, Axial	Active	Non-compliant

Engineering Selection Recommendations

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

1N5400-E3/54 and 1N5400-E3/73 (Vishay General Semiconductor) are recommended as primary substitutes. Both parts maintain identical voltage and current ratings with standard recovery characteristics matching the 1N5400-TP. Forward voltage specification of 1.2 V @ 3 A represents a 0.2 V increase from the original part but remains within acceptable design margins for general-purpose rectification applications. Both parts are active products with ROHS3 compliance and extensive inventory availability (18,914 and 2,300 units respectively).

Secondary Substitutes (Active Status, ROHS3 Compliant, Alternative Packages):

1N5400-G (Comchip Technology, DO-201AD package) and 1N5400G-T (Diodes Incorporated, DO-201AD package) provide identical electrical specifications with forward voltage of 1.0 V and 1.1 V respectively, matching or exceeding the original part performance. Both are active products with ROHS3 compliance. 1N5400G-T offers the highest inventory availability at 5,900 units.

HER301GA-G and HER301GT-G (Comchip Technology) are active alternatives featuring fast recovery characteristics (≤500ns, 50 ns trr) with identical voltage and current ratings. These parts utilize DO-27 package designation and are suitable for applications where improved switching performance is beneficial. Inventory availability is 837 and 1,060 units respectively.

Not Recommended for New Designs:

1N5400RLG (onsemi) carries "Not For New Designs" status and should not be selected for new applications despite electrical compatibility.

1N5415 (Microchip Technology) and 1N5802 (Microchip Technology) do not carry ROHS3 compliance certification and are therefore unsuitable for applications requiring RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can HER301GA-G and HER301GT-G be used as direct replacements for 1N5400-TP?

A: HER301GA-G and HER301GT-G are electrically compatible substitutes with identical 50 V and 3 A ratings. The primary difference is recovery speed: these parts feature fast recovery (≤500ns, 50 ns trr) compared to the standard recovery (>500ns) of the 1N5400-TP. Fast recovery characteristics provide improved switching performance and reduced switching losses. Package designation is DO-27 (equivalent to DO-201AA/DO-201AD axial format). Both parts are active products with ROHS3 compliance.

Q: What is the difference between 1N5400-E3/54 and 1N5400-E3/73?

A: Both parts are manufactured by Vishay General Semiconductor with identical electrical specifications: 50 V, 3 A, standard recovery, and DO-201AD package. The primary difference is operating temperature range: 1N5400-E3/54 supports -50°C to 150°C, while 1N5400-E3/73 supports -55°C to 150°C. Selection depends on application temperature requirements. Both carry ROHS3 compliance and are active products.

Q: Why is 1N5802 listed as a substitute if it has only 1 A current rating?

A: 1N5802 is listed in the substitute cross-reference data but is not recommended as a direct replacement due to its 1 A current rating, which is insufficient for the 3 A requirement of the 1N5400-TP. This part is suitable only for applications requiring lower current capacity.

Q: Are there packaging compatibility concerns when substituting DO-27 parts for DO-201AD?

A: DO-27 and DO-201AD are equivalent axial through-hole package designations. Both accommodate standard 0.040-inch lead diameter and are mechanically compatible with through-hole PCB layouts designed for axial components. No physical compatibility issues exist between these package types.

Q: Which substitute offers the best inventory availability?

A: 1N5400-E3/54 (Vishay General Semiconductor) offers the highest inventory availability at 18,914 units. This part maintains identical voltage and current specifications with standard recovery characteristics and ROHS3 compliance.

Q: Can fast recovery diodes (HER301GA-G, HER301GT-G) be used in applications designed for standard recovery diodes?

A: Fast recovery diodes are functionally compatible with standard recovery applications. The reduced reverse recovery time (50 ns versus >500ns) provides improved switching characteristics and reduced switching losses. No design modifications are required for substitution. Fast recovery diodes are suitable for both standard and high-frequency switching applications.

Q: What is the significance of the forward voltage difference between 1N5400-TP (1.0 V) and 1N5400-E3/54 (1.2 V)?

A: The 0.2 V difference in forward voltage specification represents a maximum value under specified test conditions (3 A). This variation is typical among different manufacturers and does not indicate incompatibility. For general-purpose rectification applications, this difference is negligible and does not require circuit redesign.

Q: Why is 1N5415 not recommended despite electrical compatibility?

A: 1N5415 is not recommended because it does not carry ROHS3 compliance certification. Applications requiring RoHS compliance cannot use this part. Additionally, the forward voltage specification (1.5 V @ 9 A) is measured at a different current level than the 1N5400-TP, making direct comparison difficult.

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