SMC Diode Solutions 1A6 Equivalent & Substitute Parts

Part Overview

The SMC Diode Solutions 1A6 is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 1 A average rectified current. This component features standard recovery characteristics with through-hole R-1 axial packaging. The 1A6 is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing design support and procurement continuity. Active alternatives with identical electrical ratings are available to maintain circuit functionality in applications requiring this diode specification.

Substiute Parts

1A6

SMC Diode SolutionsIn Stock: 9231A6 Datasheet

Current PartRFQ

1N4006G

Taiwan Semiconductor CorporationIn Stock: 14811N4006G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1A6 with the 1N4006G is based on electrical parameter equivalence across all critical ratings. Both diodes share identical maximum reverse voltage (800 V), average rectified current (1 A), forward voltage drop (1 V @ 1 A), reverse leakage current (5 µA @ 800 V), and standard recovery speed characteristics. Both components are through-hole axial diodes with unlimited moisture sensitivity classification.

The 1N4006G qualifies as a direct substitute based on the following key parameters:

• Voltage - DC Reverse (Vr) (Max): 800 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 1 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 5 µA @ 800 V
• Mounting Type: Through Hole
• MSL Classification: 1 (Unlimited)

Package differences (R-1 versus DO-204AL/DO-41) do not affect electrical substitution, as both are standard axial through-hole formats with compatible lead spacing and mounting characteristics for PCB applications.

Parameter Comparison

Engineering Selection Recommendations

The 1N4006G from Taiwan Semiconductor Corporation is the qualified substitute for the obsolete SMC Diode Solutions 1A6. Selection of the 1N4006G is supported by the following factors:

Product Status: The 1N4006G maintains active product status with current manufacturing and distribution support, ensuring long-term availability and supply chain continuity compared to the obsolete 1A6.

Electrical Equivalence: All critical electrical parameters match the 1A6 specification, including reverse voltage rating, forward current capacity, forward voltage drop, and reverse leakage characteristics. Standard recovery speed classification is identical.

Compliance and Certifications: Both components share identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory compliance equivalence. The 1N4006G includes RoHS3 compliance certification, providing additional environmental compliance assurance.

Temperature Operating Range: The 1N4006G operating range (-55°C to 150°C) encompasses the 1A6 range (-65°C to 125°C), providing equivalent or superior thermal performance for standard applications.

Packaging Compatibility: Both components use through-hole axial mounting with compatible lead configurations suitable for PCB assembly. The DO-204AL (DO-41) package of the 1N4006G is a standard industry format with established PCB footprint definitions.

Inventory Availability: The 1N4006G is available in active stock quantities (1440 pieces), supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1N4006G directly replace the 1A6 in existing circuit designs?

A: Yes. The 1N4006G provides electrical equivalence across all specified parameters. Both diodes share identical voltage ratings (800 V), current ratings (1 A), forward voltage characteristics (1 V @ 1 A), and reverse leakage specifications (5 µA @ 800 V). Through-hole axial mounting is compatible between both package types.

Q: What is the difference between the R-1 and DO-204AL packages?

A: Both R-1 and DO-204AL are standard through-hole axial diode packages with compatible lead spacing and mounting characteristics. The DO-204AL (also designated DO-41) is the industry-standard package designation for this diode class. Package differences do not affect electrical performance or PCB compatibility for standard applications.

Q: Are there compliance differences between the 1A6 and 1N4006G?

A: Both components share identical REACH and ECCN classifications. The 1N4006G includes RoHS3 compliance certification, which the 1A6 does not specify. Both components are classified as REACH Unaffected and EAR99 for export control purposes.

Q: How do the operating temperature ranges compare?

A: The 1A6 operates from -65°C to 125°C junction temperature. The 1N4006G operates from -55°C to 150°C. The 1N4006G range encompasses the 1A6 range and provides extended high-temperature capability, making it suitable for applications requiring the 1A6 thermal specifications.

Q: What is the significance of the capacitance difference (15 pF versus 10 pF)?

A: Both capacitance values are measured at identical conditions (4 V, 1 MHz). The 1N4006G capacitance of 10 pF is lower than the 1A6 specification of 15 pF. This difference is within normal manufacturing variation for this diode class and does not affect substitution suitability for standard rectification applications.

Q: Is the 1N4006G available in the same packaging format as the 1A6?

A: The 1N4006G is supplied in Cut Tape (CT) packaging, while the 1A6 packaging format is not specified in available data. Both components use DO-204AL (DO-41) axial through-hole format, which is the standard package type for this diode rating class. PCB mounting compatibility is maintained.

Q: What inventory status should be considered when selecting between these parts?

A: The 1A6 is obsolete with 908 pieces in stock. The 1N4006G is active with 1440 pieces in stock. For new designs and long-term supply requirements, the 1N4006G is the appropriate selection due to active product status and ongoing availability.