6.3AX220MEFC6.3X7 Equivalent & Substitute Parts

Part Overview

The 6.3AX220MEFC6.3X7 is a 220 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Rubycon under the AX series. This component is rated for general-purpose applications with a 1000-hour lifetime at 105°C and operates across a temperature range of -40°C to 105°C. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

6.3AX220MEFC6.3X7

RubyconIn Stock: 14596.3AX220MEFC6.3X7 Datasheet

Current PartRFQ

RPA0608221M016B

KYOCERA AVXIn Stock: 21044RPA0608221M016B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6.3AX220MEFC6.3X7 is determined by the following critical parameters:

• Capacitance Value: 220 µF (exact match required)
• Polarization: Polar (electrolytic type)
• Package Type: Radial, Can (through-hole mounting)
• Physical Dimensions: 0.248" diameter (6.30mm), lead spacing 0.098" (2.50mm)
• Voltage Rating: Minimum 6.3 V (equal or higher voltage rating is acceptable)
• Tolerance: ±20%
• Compliance: ROHS3 Compliant

The RPA0608221M016B from KYOCERA AVX meets all substitution criteria. While it carries a higher voltage rating (16 V versus 6.3 V), this represents an acceptable upgrade in electrical performance. The physical footprint, lead spacing, and mounting configuration are identical, ensuring direct mechanical compatibility on printed circuit boards designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The RPA0608221M016B is a direct functional substitute for the obsolete 6.3AX220MEFC6.3X7. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

The substitute part offers enhanced performance characteristics: a higher voltage rating (16 V), extended lower temperature operating range (-55°C versus -40°C), and significantly improved lifetime rating (5000 hours at 105°C versus 1000 hours). The physical footprint remains identical, with only a marginal height increase of 0.039" (1.00mm), which poses no compatibility concerns for standard PCB layouts.

The higher voltage rating of the substitute part does not create functional incompatibility in circuits designed for 6.3 V operation. Aluminum electrolytic capacitors with higher voltage ratings operate safely at lower applied voltages and provide improved reliability margins.

Frequently Asked Questions (FAQ)

Q: Can the RPA0608221M016B replace the 6.3AX220MEFC6.3X7 in existing circuit designs?

A: Yes. The substitute part maintains identical capacitance (220 µF), tolerance (±20%), polarization, package type (radial, can), and physical footprint (0.248" diameter, 0.098" lead spacing). The higher voltage rating (16 V) is compatible with circuits designed for 6.3 V operation.

Q: What is the significance of the voltage rating difference?

A: The substitute part carries a 16 V rating compared to the original 6.3 V rating. In circuits operating at 6.3 V or below, the higher-rated component functions identically to the original while providing additional electrical safety margin and improved reliability.

Q: Are there physical mounting concerns with the height difference?

A: The substitute part is 0.039" (1.00mm) taller than the original (0.374" versus 0.335" seated height). This marginal difference does not affect standard PCB layouts or enclosure clearances in typical applications.

Q: Do both parts meet current compliance standards?

A: Yes. Both the original and substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use.

Q: What is the lead spacing compatibility?

A: Both parts share identical lead spacing of 0.098" (2.50mm), ensuring direct compatibility with PCB footprints designed for the original component.