1N4004 General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The 1N4004 is a general purpose rectifier diode rated for 400 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. The original Micro Commercial Co part (1N4004) carries an Obsolete product status, making equivalent and substitute parts necessary for ongoing production and design requirements. Active alternatives from multiple manufacturers provide direct functional equivalence with improved compliance and availability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.0 - 1.1	V @ 1 A
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	5 - 10	µA @ 400 V
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-55°C to 175°C	°C
Technology	Standard	-
Speed	Standard Recovery >500ns, > 200mA (Io)	-

Substitute Part Grouping Explanation

Substitution of the 1N4004 rectifier diode is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.0 - 1.1 V @ 1 A
Reverse Recovery Time (trr): 2 µs
Current - Reverse Leakage @ Vr: 5 - 10 µA @ 400 V
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial
Technology: Standard

Substitute Categories:

Direct Manufacturer Equivalents maintain identical electrical specifications and package form factors across different manufacturers. These parts are interchangeable without circuit modification.

Parametric Equivalents meet all critical electrical parameters but may originate from different manufacturers or carry different part number designations. All maintain 400 V reverse voltage, 1 A current rating, and compatible through-hole packaging.

Upgrade Parts from Vishay General Semiconductor (SUPERECTIFIER® series) provide enhanced performance characteristics including lower junction capacitance (8 pF vs. 15 pF) and extended temperature range (-65°C to 175°C vs. -55°C to 150°C) while maintaining full electrical equivalence.

Similar Parts such as the 1N4002RLG operate at reduced voltage ratings (100 V vs. 400 V) and are not direct substitutes but represent lower-voltage alternatives for applications with reduced voltage requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [V]	trr [µs]	Ir @ Vr [µA]	Package	Tj Range [°C]	RoHS Status
1N4004	Micro Commercial Co	Obsolete	400	1	1.1	2	5	DO-41	-55 to 150	Non-compliant
1N4004-TP	Micro Commercial Co	Active	400	1	1.1	2	5	DO-41	-55 to 150	ROHS3 Compliant
1N4004GP-TP	Micro Commercial Co	Active	400	1	1.1	2	5	DO-41	-55 to 150	ROHS3 Compliant
1N4004-T	Diodes Incorporated	Last Time Buy	400	1	1.0	2	5	DO-41	-65 to 150	ROHS3 Compliant
1N4004RLG	onsemi	Not For New Designs	400	1	1.1	2	10	Axial	-65 to 175	ROHS3 Compliant
1N4004GP-E3/54	Vishay General Semiconductor	Active	400	1	1.1	2	5	DO-204AL	-65 to 175	ROHS3 Compliant
1N4004GP-E3/73	Vishay General Semiconductor	Active	400	1	1.1	2	5	DO-204AL	-65 to 175	ROHS3 Compliant
1N4004GPE-E3/54	Vishay General Semiconductor	Active	400	1	1.1	2	5	DO-204AL	-65 to 175	ROHS3 Compliant
1N4004GPE-E3/73	Vishay General Semiconductor	Active	400	1	1.1	2	5	DO-204AL	-65 to 175	ROHS3 Compliant
1N4004-E3/53	Vishay General Semiconductor	Active	400	1	1.1	2	5	DO-204AL	-50 to 150	ROHS3 Compliant

Engineering Selection Recommendations

For Active Production and New Designs:

The 1N4004-TP from Micro Commercial Co provides direct replacement with Active product status and ROHS3 compliance. This part maintains identical electrical specifications to the obsolete 1N4004 while offering improved regulatory compliance and current availability.

The 1N4004-E3/53 from Vishay General Semiconductor is recommended for applications requiring high inventory availability (76,171 pcs in stock) and Active product status. This part meets all electrical requirements with ROHS3 compliance and operates across the -50°C to 150°C temperature range.

For Extended Temperature Range Applications:

The 1N4004GP-E3/54, 1N4004GP-E3/73, 1N4004GPE-E3/54, and 1N4004GPE-E3/73 from Vishay General Semiconductor extend the operating temperature range to -65°C to 175°C while maintaining full electrical equivalence. These SUPERECTIFIER® series parts provide enhanced performance with reduced junction capacitance (8 pF vs. 15 pF) and are suitable for applications requiring wider temperature operation.

For Axial Package Requirements:

The 1N4004RLG from onsemi provides axial package configuration with equivalent electrical specifications. This part carries "Not For New Designs" status but remains available with 15,300 pcs in stock. The reverse leakage current specification is 10 µA at 400 V, within acceptable tolerance of the 5 µA specification.

Compliance Considerations:

All recommended substitute parts carry ROHS3 compliance status. The original 1N4004 from Micro Commercial Co is RoHS non-compliant and should be replaced in new designs. All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can the 1N4004-TP directly replace the obsolete 1N4004?

A: Yes. The 1N4004-TP from Micro Commercial Co maintains identical electrical specifications (400 V reverse voltage, 1 A current rating, 1.1 V forward voltage at 1 A, 2 µs reverse recovery time) and DO-41 package configuration. The primary difference is Active product status and ROHS3 compliance.

Q: What is the difference between DO-41 and DO-204AL packages?

A: DO-41 and DO-204AL are equivalent designations for the same axial through-hole package. Both refer to a cylindrical component with leads at each end. Parts specified as DO-204AL (DO-41) or DO-41 are mechanically and electrically interchangeable.

Q: Are the Vishay SUPERECTIFIER® parts (1N4004GP-E3/54, etc.) direct replacements?

A: Yes. These parts maintain all critical electrical parameters (400 V, 1 A, 1.1 V forward voltage, 2 µs recovery time) and through-hole packaging. The upgrade benefits include extended temperature range (-65°C to 175°C vs. -55°C to 150°C) and lower junction capacitance (8 pF vs. 15 pF). No circuit modification is required.

Q: Why does the 1N4004RLG show 10 µA reverse leakage instead of 5 µA?

A: The 1N4004RLG from onsemi specifies 10 µA reverse leakage at 400 V, compared to 5 µA for other variants. This remains within acceptable rectifier diode specifications and does not prevent substitution. The part is electrically equivalent for all other parameters.

Q: Can the 1N4002RLG be used as a substitute for the 1N4004?

A: No. The 1N4002RLG is rated for 100 V reverse voltage, not 400 V. This part is suitable only for applications with reduced voltage requirements and is not a direct substitute for 400 V applications.

Q: What is the significance of the temperature range difference between parts?

A: Parts with extended temperature range (-65°C to 175°C) provide operation across a wider ambient and junction temperature spectrum compared to standard range parts (-55°C to 150°C). Selection depends on application requirements. Extended range parts do not degrade performance in standard temperature applications.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts carry ROHS3 compliance status. The original 1N4004 is RoHS non-compliant. For applications subject to RoHS regulations, substitute parts with ROHS3 compliance are required.

Q: What packaging options are available for 1N4004 substitutes?

A: Substitute parts are available in DO-41 (axial) and DO-204AL (axial) packages. These are mechanically equivalent through-hole packages suitable for manual insertion or automated assembly. All substitute parts maintain the same lead spacing and mounting characteristics.

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