6A6 Diode Equivalent & Substitute Parts

Part Overview

The 6A6 is a general-purpose rectifier diode manufactured by SMC Diode Solutions, rated for 600 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges to ensure proper circuit operation.

Substiute Parts

6A6

SMC Diode SolutionsIn Stock: 9946A6 Datasheet

Current PartRFQ

6A60G A0G

Taiwan Semiconductor CorporationIn Stock: 11276A60G A0G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6A6 diode is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Current - Average Rectified (Io): 6 A minimum
• Voltage - Forward (Vf) (Max) @ If: Must not exceed specified maximum at rated current
• Current - Reverse Leakage @ Vr: Must not exceed specified maximum at rated voltage
• Speed: Standard Recovery classification >500ns, > 200mA (Io)

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: R-6, Axial

Compliance Criteria:

• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8541.10.0080

The 6A60G A0G manufactured by Taiwan Semiconductor Corporation meets all electrical and mechanical requirements for direct substitution. This part maintains the same voltage and current ratings, package configuration, and regulatory compliance status as the original 6A6 component.

Parameter Comparison

Engineering Selection Recommendations

The 6A60G A0G from Taiwan Semiconductor Corporation is a direct substitute for the obsolete 6A6 diode. Selection of this substitute is supported by the following factors:

Product Status: The 6A60G A0G maintains active product status, ensuring continued availability and manufacturing support, whereas the 6A6 is classified as obsolete.

Electrical Performance: The substitute part meets or exceeds all critical electrical specifications. The forward voltage rating of 1 V at 6 A is marginally higher than the original 950 mV specification but remains within acceptable operating parameters for general-purpose rectification applications. The reverse voltage, average rectified current, reverse leakage current, and recovery speed are identical to the original component.

Regulatory Compliance: Both parts share identical REACH, ECCN, and HTSUS classifications. The 6A60G A0G is RoHS3 compliant, providing enhanced environmental compliance compared to the original part.

Thermal Operating Range: The substitute part operates across -55°C to 150°C, which is narrower than the original -65°C to 175°C range. This difference is acceptable for applications operating within the substitute part's specified temperature envelope.

Package and Mounting: The R-6 axial through-hole package is identical, ensuring direct mechanical compatibility in existing circuit board layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 6A60G A0G be used as a direct replacement for the 6A6 in existing designs?

A: Yes. The 6A60G A0G is electrically and mechanically equivalent to the 6A6. Both parts share identical voltage ratings (600 V), current ratings (6 A), package configuration (R-6 axial), and mounting type (through hole). The substitute part can be installed without circuit modification.

Q: What is the difference in forward voltage between the 6A6 and 6A60G A0G?

A: The 6A6 specifies a maximum forward voltage of 950 mV at 6 A, while the 6A60G A0G specifies 1 V at 6 A. This 50 mV difference is within acceptable tolerance for general-purpose rectifier applications and does not affect circuit functionality in standard power supply and rectification circuits.

Q: Are there temperature range limitations when substituting the 6A60G A0G for the 6A6?

A: The 6A60G A0G operates across -55°C to 150°C, compared to the 6A6 range of -65°C to 175°C. If your application requires operation below -55°C or above 150°C, the substitute part is not suitable. For applications within the -55°C to 150°C range, the substitute part is fully compatible.

Q: Is the R-6 axial package identical between both parts?

A: Yes. Both the 6A6 and 6A60G A0G use the R-6 axial through-hole package. No changes to printed circuit board layout, component footprint, or assembly procedures are required.

Q: What is the regulatory compliance status of the 6A60G A0G?

A: The 6A60G A0G is RoHS3 compliant and maintains REACH Unaffected status, identical ECCN (EAR99), and identical HTSUS classification (8541.10.0080) as the original 6A6 component.

Q: Why is the 6A6 classified as obsolete?

A: The 6A6 is no longer in active production by SMC Diode Solutions. The 6A60G A0G from Taiwan Semiconductor Corporation is an active product with ongoing manufacturing support and availability.

Q: Are there any other substitute parts available for the 6A6?

A: Based on the provided parameter specifications, the 6A60G A0G is the identified substitute. The original documentation references 6A6-TP as an additional substitute designation.