SMC Diode Solutions 6A2 Equivalent & Substitute Parts

Part Overview

The SMC Diode Solutions 6A2 is a general-purpose rectifier diode rated for 200 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 system maintenance, repair, and redesign applications. The 6A2 serves standard rectification functions in power supply circuits and similar applications requiring moderate voltage and current ratings.

Substiute Parts

6A2

SMC Diode SolutionsIn Stock: 7236A2 Datasheet

Current PartRFQ

6A02B-G

Comchip TechnologyIn Stock: 11516A02B-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SMC Diode Solutions 6A2 is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 6 A
• Mounting Type: Through Hole
• Package / Case: R-6, Axial
• Speed Classification: Standard Recovery

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Minor variations within standard rectifier tolerances
• Current - Reverse Leakage @ Vr: Equivalent or lower values acceptable
• Capacitance @ Vr, F: Variations acceptable within standard diode specifications
• Operating Temperature - Junction: Wider or equivalent ranges acceptable

The Comchip Technology 6A02B-G meets all critical matching parameters and is classified as an active product with current availability, making it a direct functional equivalent for the obsolete 6A2.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Comchip Technology 6A02B-G

The Comchip Technology 6A02B-G is the recommended substitute for the obsolete SMC Diode Solutions 6A2. This selection is based on the following engineering criteria:

1. Electrical Equivalence: The 6A02B-G maintains identical voltage and current ratings (200 V, 6 A) with equivalent reverse leakage characteristics and recovery speed classification.

2. Mechanical Compatibility: Both components use the R-6 axial through-hole package, ensuring direct pin-compatible replacement without circuit board modification.

3. Product Status: The 6A02B-G is classified as active with current manufacturing and distribution, eliminating supply chain risk associated with the obsolete 6A2.

4. Regulatory Compliance: The 6A02B-G carries ROHS3 compliance certification, meeting modern environmental and material restriction requirements. Both components maintain REACH Unaffected status and EAR99 export classification.

5. Operating Parameters: The 6A02B-G operating temperature range (-55°C ~ 125°C) is narrower than the 6A2 (-65°C ~ 175°C) but remains suitable for standard industrial and commercial applications. Forward voltage is marginally higher (1 V versus 950 mV at 6 A), representing a negligible difference in typical rectifier circuit operation.

6. Availability: The 6A02B-G is available in bulk packaging with confirmed inventory, supporting both prototype and production-volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the Comchip Technology 6A02B-G be used as a direct replacement for the SMC 6A2 without circuit modification?

A: Yes. Both components share identical voltage ratings (200 V), current ratings (6 A), package type (R-6 axial), and mounting configuration (through-hole). No circuit board layout changes are required for substitution.

Q: What is the significance of the forward voltage difference between the 6A2 (950 mV) and 6A02B-G (1 V)?

A: The 50 mV difference represents approximately 5% variation and is within normal rectifier diode tolerances. This difference produces negligible impact on power dissipation and circuit performance in standard rectification applications.

Q: Why is the operating temperature range of the 6A02B-G narrower than the 6A2?

A: The 6A02B-G operates from -55°C to 125°C, compared to the 6A2 range of -65°C to 175°C. For applications requiring operation below -55°C or above 125°C, the 6A02B-G may not be suitable. Standard industrial and commercial applications typically operate within the 6A02B-G temperature range.

Q: Are there compliance differences between the 6A2 and 6A02B-G?

A: The 6A02B-G carries ROHS3 compliance certification, indicating compliance with Restriction of Hazardous Substances Directive requirements. The 6A2 does not specify RoHS status. Both components maintain REACH Unaffected status and EAR99 export classification.

Q: What is the capacitance difference between these diodes, and does it affect circuit performance?

A: The 6A2 has 150 pF capacitance at 4 V, 1 MHz, while the 6A02B-G has 100 pF. This 50 pF difference is typical among rectifier diodes and does not affect standard rectification circuit operation. Capacitance becomes relevant only in high-frequency switching applications, which are outside the standard recovery speed classification of both components.

Q: Is the R-6 axial package still in current production?

A: The R-6 axial package remains in production for through-hole rectifier diodes. The Comchip Technology 6A02B-G is actively manufactured in this package configuration with confirmed inventory availability.

Q: Can the 6A02B-G handle the same power dissipation as the 6A2?

A: Both components are rated for 6 A average rectified current at 200 V reverse voltage. Power dissipation is determined by forward voltage drop and current. The 6A02B-G forward voltage is marginally higher (1 V versus 950 mV), resulting in approximately 5% additional power dissipation under identical load conditions. This difference is negligible in standard rectifier applications.