UAS2G820MHD6 Equivalent & Substitute Parts

Part Overview

The UAS2G820MHD6 is an 82 µF, 400 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production. Substitute parts may be required due to inventory constraints, design optimization for extended lifetime requirements, or application-specific performance needs such as increased ripple current handling capability.

Substiute Parts

UAS2G820MHD6

NichiconIn Stock: 891UAS2G820MHD6 Datasheet

Current PartRFQ

400TXW82MEFR18X25

RubyconIn Stock: 2931400TXW82MEFR18X25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 400TXW82MEFR18X25 manufactured by Rubycon qualifies as a direct substitute for the UAS2G820MHD6 based on the following critical parameters:

• Identical capacitance: 82 µF
• Identical voltage rating: 400 V
• Identical tolerance: ±20%
• Identical polarization: Polar
• Identical lead spacing: 0.295" (7.50 mm)
• Identical can diameter: 0.709" (18.00 mm)
• Identical mounting type: Through Hole
• Identical operating temperature range: -40°C ~ 105°C
• Identical RoHS3 compliance status

The substitute part maintains full electrical and mechanical compatibility with the original specification. Physical dimensions are compatible with PCB layouts designed for the UAS2G820MHD6, with the exception of seated height, which differs due to internal construction optimization.

Parameter Comparison

Engineering Selection Recommendations

The 400TXW82MEFR18X25 is electrically and mechanically compatible with the UAS2G820MHD6 for direct substitution in existing designs. Both parts maintain ROHS3 compliance and are suitable for the same operating temperature range.

The substitute part offers extended lifetime performance at 105°C (12000 hours versus 2000 hours) and higher ripple current ratings across both low and high frequency ranges. These characteristics make the Rubycon part suitable for applications requiring enhanced reliability or higher AC stress tolerance.

The UAS2G820MHD6 remains the preferred choice for active production designs due to its current product status. The 400TXW82MEFR18X25 is designated "Not For New Designs," which indicates it is available for legacy system support and replacement applications only. Physical height difference (34.60 mm versus 27.50 mm) must be verified against PCB clearance requirements before substitution in space-constrained layouts.

Frequently Asked Questions (FAQ)

Q: Can the 400TXW82MEFR18X25 be used as a direct replacement for the UAS2G820MHD6?

A: Yes. Both parts share identical electrical specifications (82 µF, 400 V, ±20% tolerance) and mechanical compatibility (lead spacing 7.50 mm, can diameter 18.00 mm, through-hole mounting). The primary difference is seated height: 27.50 mm versus 34.60 mm. Verify clearance in your PCB layout before substitution.

Q: What are the key differences between these two parts?

A: The substitute part offers superior lifetime rating (12000 hours at 105°C versus 2000 hours) and higher ripple current capacity at both low and high frequencies. The UAS2G820MHD6 is an active product, while the 400TXW82MEFR18X25 is designated for legacy applications only.

Q: Are both parts RoHS compliant?

A: Yes. Both the UAS2G820MHD6 and 400TXW82MEFR18X25 are ROHS3 compliant.

Q: Does the height difference affect PCB compatibility?

A: The substitute part is 6.00 mm shorter (27.50 mm versus 34.60 mm). Verify that your PCB layout provides adequate clearance above the capacitor. If space is constrained, the original part may be required.

Q: Which part should I specify for new designs?

A: Specify the UAS2G820MHD6 for new production designs. The 400TXW82MEFR18X25 is available for replacement and legacy system support only.