1N4006 Equivalent & Substitute Parts

Part Overview

The 1N4006 is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued circuit implementation. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating packaging and compliance requirements.

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°C ~ 125°C	—

Substitute Part Grouping Explanation

Substitution of the 1N4006 is determined by equivalence across the following critical parameters:

Reverse Voltage Rating: 800 V minimum
Average Rectified Current: 1 A minimum
Forward Voltage Drop: 1 V maximum at 1 A
Reverse Leakage Current: 5 µA maximum at 800 V
Recovery Speed: Standard recovery classification (>500 ns, >200 mA)
Mounting Configuration: Through-hole axial package (DO-41 or DO-204AL)
Temperature Range: Operating junction temperature compatibility

The 1N4006G meets all specified electrical parameters and maintains package compatibility in the DO-204AL (DO-41) form factor. Both parts are classified within the same base product family (1N4006 series) and share identical voltage, current, and leakage specifications.

Parameter Comparison

Parameter	1N4006 (Main Part)	1N4006G (Substitute)	Match Status
Manufacturer	SMC Diode Solutions	Taiwan Semiconductor Corporation	Different Manufacturer
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A	1 V @ 1 A	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	Equivalent
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	Equivalent
Operating Temperature - Junction	-65°C ~ 125°C	-55°C ~ 150°C	Substitute Range Wider
Product Status	Obsolete	Active	Substitute Active
Capacitance @ Vr, F	15 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	Substitute Lower
RoHS Status	Not Specified	ROHS3 Compliant	Substitute Compliant
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

The 1N4006G is a direct electrical equivalent to the 1N4006 across all primary rectification parameters. Selection of the 1N4006G is supported by the following factors:

Product Status: The 1N4006G maintains active product status, ensuring continued availability and supply chain stability compared to the obsolete 1N4006.
Electrical Equivalence: All critical rectification parameters (reverse voltage, forward current, leakage current, and recovery speed) are identical between the two parts.
Compliance: The 1N4006G carries ROHS3 compliance certification, meeting modern regulatory requirements. Both parts maintain REACH Unaffected status.
Temperature Range: The 1N4006G operating temperature range (-55°C ~ 150°C) encompasses the original specification (-65°C ~ 125°C), providing extended thermal margin.
Package Compatibility: Both parts utilize the DO-204AL (DO-41) axial through-hole package, ensuring mechanical and electrical compatibility in existing circuit board layouts.
Capacitance Consideration: The 1N4006G exhibits lower junction capacitance (10 pF versus 15 pF at 4 V, 1 MHz), which may provide improved performance in high-frequency switching applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N4006G be used as a direct replacement for the 1N4006 in existing designs?

A: Yes. The 1N4006G meets all electrical specifications of the 1N4006 across reverse voltage (800 V), average rectified current (1 A), forward voltage drop (1 V @ 1 A), and reverse leakage current (5 µA @ 800 V). Both parts use identical DO-41 axial through-hole packaging and are mechanically interchangeable.

Q: What is the primary reason for substituting the 1N4006?

A: The 1N4006 is classified as obsolete. The 1N4006G is an active product from Taiwan Semiconductor Corporation, ensuring reliable supply and continued manufacturing support.

Q: Are there any differences in performance between the 1N4006 and 1N4006G?

A: The electrical performance is equivalent for rectification applications. The 1N4006G exhibits lower junction capacitance (10 pF versus 15 pF) and a wider operating temperature range (-55°C ~ 150°C versus -65°C ~ 125°C). These differences do not affect standard rectifier operation.

Q: Does the 1N4006G meet modern compliance standards?

A: Yes. The 1N4006G is ROHS3 compliant and maintains REACH Unaffected status, meeting current regulatory requirements for electronic components.

Q: Are there any packaging considerations when substituting the 1N4006?

A: No. Both the 1N4006 and 1N4006G use the DO-204AL (DO-41) axial through-hole package. No circuit board layout modifications are required.

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

A: DO-41 and DO-204AL refer to the same physical package format for axial through-hole diodes. Both designations describe the identical mechanical and electrical interface.

Q: Can the 1N4006G handle the same voltage and current levels as the 1N4006?

A: Yes. Both parts are rated for 800 V DC reverse voltage and 1 A average rectified current. They are electrically equivalent for all rectification specifications.

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