1N4006L-T Equivalent & Substitute Parts

Part Overview

The 1N4006L-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 800 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This part is classified as Obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts satisfy the same functional requirements within the allowed parameter ranges for this rectifier diode category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 1 A
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	DO-204AL, DO-41, Axial	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 1N4006L-T is determined by the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 1 A minimum
Voltage - Forward (Vf) (Max) @ If: 1.1 V or lower at 1 A
Current - Reverse Leakage @ Vr: 10 µA or lower at 800 V
Speed: Standard Recovery >500ns, > 200mA (Io)

Mechanical Compatibility Criteria:

Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial configurations
Operating Temperature - Junction: -50°C to 175°C range

Compliance Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Manufacturer Equivalents (identical specifications from alternative manufacturers) and Manufacturer-Recommended Alternatives (parts meeting or exceeding the electrical and mechanical requirements with active or last-time-buy product status).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Ir @ Vr [µA @ V]	Package	Temp Range [°C]	Product Status	RoHS
1N4006L-T	Diodes Incorporated	800	1	1 @ 1	5 @ 800	DO-41	-65 to 150	Obsolete	ROHS3
1N4006-T	Diodes Incorporated	800	1	1 @ 1	5 @ 800	DO-41	-65 to 150	Last Time Buy	ROHS3
1N4006-TP	Micro Commercial Co	800	1	1.1 @ 1	5 @ 800	DO-41	-55 to 150	Active	ROHS3
1N4006-E3/53	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1	5 @ 800	DO-204AL (DO-41)	-50 to 150	Active	ROHS3
1N4006-E3/54	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1	5 @ 800	DO-204AL (DO-41)	-55 to 150	Active	ROHS3
1N4006-E3/73	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1	5 @ 800	DO-204AL (DO-41)	-55 to 150	Active	ROHS3
1N4006E-E3/54	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1	5 @ 800	DO-204AL (DO-41)	-55 to 150	Active	ROHS3
1N4006E-E3/73	Vishay General Semiconductor - Diodes Division	800	1	1.1 @ 1	5 @ 800	DO-204AL (DO-41)	-55 to 150	Active	ROHS3
1N4006FFG	onsemi	800	1	1.1 @ 1	10 @ 800	Axial	-65 to 175	Last Time Buy	ROHS3
1N4006G	Taiwan Semiconductor Corporation	800	1	1 @ 1	5 @ 800	DO-204AL (DO-41)	-55 to 150	Active	ROHS3
1N4006RLG	onsemi	800	1	1.1 @ 1	10 @ 800	Axial	-65 to 175	Not For New Designs	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

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

1N4006-TP (Micro Commercial Co): Active status with 69,145 units in stock. Meets all electrical specifications with forward voltage of 1.1 V @ 1 A. Operating temperature range -55°C to 150°C. Suitable for new designs and production applications.
1N4006-E3/54 (Vishay General Semiconductor - Diodes Division): Active status with 9,002 units in stock. Meets all electrical specifications. Operating temperature range -55°C to 150°C. DO-204AL (DO-41) package configuration.
1N4006-E3/73 (Vishay General Semiconductor - Diodes Division): Active status with 8,700 units in stock. Meets all electrical specifications. Operating temperature range -55°C to 150°C. DO-204AL (DO-41) package configuration.
1N4006E-E3/54 (Vishay General Semiconductor - Diodes Division): Active status with 5,742 units in stock. Meets all electrical specifications. Operating temperature range -55°C to 150°C. DO-204AL (DO-41) package configuration.
1N4006E-E3/73 (Vishay General Semiconductor - Diodes Division): Active status with 1,140 units in stock. Meets all electrical specifications. Operating temperature range -55°C to 150°C. DO-204AL (DO-41) package configuration.
1N4006G (Taiwan Semiconductor Corporation): Active status with 1,440 units in stock. Matches forward voltage specification of 1 V @ 1 A. Operating temperature range -55°C to 150°C. DO-204AL (DO-41) package configuration.

Secondary Substitutes (Last Time Buy / Not For New Designs):

1N4006-T (Diodes Incorporated): Last Time Buy status with 4,552 units in stock. Identical electrical specifications to the main part. Suitable for replacement applications where existing inventory is being depleted.
1N4006FFG (onsemi): Last Time Buy status with 2,900 units in stock. Meets electrical specifications with extended operating temperature range (-65°C to 175°C). Axial package configuration. Reverse leakage current of 10 µA @ 800 V.
1N4006RLG (onsemi): Not For New Designs status with 62,255 units in stock. Meets electrical specifications with extended operating temperature range (-65°C to 175°C). Axial package configuration. Reverse leakage current of 10 µA @ 800 V. Suitable only for replacement and legacy support applications.

Package Considerations:

All substitute parts maintain through-hole mounting compatibility. Parts designated as DO-204AL (DO-41) are mechanically and electrically interchangeable with the original DO-41 package. Axial package variants (1N4006FFG, 1N4006RLG) provide alternative lead configuration while maintaining electrical equivalence.

Compliance Status:

All listed substitute parts are ROHS3 Compliant and carry Moisture Sensitivity Level 1 (Unlimited), matching the original part's compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use 1N4006-TP as a direct replacement for 1N4006L-T?

A: Yes. The 1N4006-TP meets all electrical specifications of the 1N4006L-T, including 800 V reverse voltage rating, 1 A average rectified current, and standard recovery speed. The forward voltage specification of 1.1 V @ 1 A is within acceptable limits for general-purpose rectifier applications. The part is in Active product status with high inventory availability.

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

A: DO-41 and DO-204AL are equivalent package designations for the same through-hole axial lead diode package. Parts specified as DO-204AL (DO-41) are mechanically and electrically interchangeable with parts specified as DO-41 only.

Q: Why do some substitute parts have higher reverse leakage current (10 µA vs. 5 µA)?

A: The 1N4006FFG and 1N4006RLG from onsemi specify 10 µA reverse leakage current at 800 V, compared to 5 µA for other variants. Both values remain within acceptable limits for general-purpose rectifier applications. The higher leakage current does not affect functional compatibility in standard power supply and rectification circuits.

Q: Are Axial package variants compatible with DO-41 footprints?

A: Axial package diodes (1N4006FFG, 1N4006RLG) have the same lead spacing and through-hole mounting as DO-41 packages and are mechanically compatible with existing PCB layouts designed for DO-41 components.

Q: Should I use parts marked "Last Time Buy" or "Not For New Designs"?

A: Parts with Last Time Buy status (1N4006-T, 1N4006FFG) are suitable for replacement and maintenance applications where existing inventory is being depleted. Parts marked Not For New Designs (1N4006RLG) should be used only for legacy system support and replacement applications. For new designs, select from parts with Active product status.

Q: What is the operating temperature range difference between substitute parts?

A: The original 1N4006L-T operates from -65°C to 150°C. Most substitute parts operate from -55°C to 150°C, providing a 10°C reduction in the lower temperature limit. The onsemi variants (1N4006FFG, 1N4006RLG) extend the upper limit to 175°C. Select based on your application's specific temperature requirements.

Q: Are all substitute parts RoHS3 Compliant?

A: Yes. All listed substitute parts carry RoHS3 Compliant status, matching the compliance profile of the original 1N4006L-T.

Q: Which substitute part has the highest inventory availability?

A: The 1N4006RLG from onsemi has the highest inventory with 62,255 units in stock. However, this part is marked Not For New Designs. For new designs, the 1N4006-TP from Micro Commercial Co offers the highest availability with 69,145 units in stock and Active product status.

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