Equivalent & Substitute Parts for UCA2G220MHD1TO

Part Overview

The UCA2G220MHD1TO is a 22 µF, 400 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 12000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part carries a "Not For New Designs" status, making identification of suitable alternatives essential for ongoing production and design updates.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	400 V
Tolerance	±20%
Lifetime @ Temperature	12000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.197" (5.00mm)
Package Type	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.492" Dia (12.50mm)
Height - Seated (Max)	0.846" (21.50mm)

Substitute Part Grouping Explanation

Substitution of the UCA2G220MHD1TO is determined by the following critical parameters:

Capacitance Value: Must remain 22 µF to maintain circuit functionality
Voltage Rating: Substitute must meet or exceed 400 V
Tolerance: ±20% tolerance is acceptable
Package Configuration: Radial, can-style through-hole mounting with identical lead spacing (5.00mm) and physical dimensions (12.50mm diameter, 21.50mm height maximum)
Thermal Characteristics: Lifetime rating of 12000 hours at 105°C or better
Polarization: Polar configuration required

The UCYW6220MHD1TO qualifies as a direct substitute based on these parameters. It maintains identical capacitance, tolerance, lead spacing, and physical dimensions while providing an upgraded voltage rating of 420 V and improved ripple current handling.

Parameter Comparison

Parameter	UCA2G220MHD1TO (Main)	UCYW6220MHD1TO (Substitute)
Manufacturer	Nichicon	Nichicon
Capacitance	22 µF	22 µF
Tolerance	±20%	±20%
Voltage - Rated	400 V	420 V
Lifetime @ Temp.	12000 Hrs @ 105°C	12000 Hrs @ 105°C
Operating Temperature	-25°C ~ 105°C	-40°C ~ 105°C
Ripple Current @ 120 Hz	215 mA	285 mA
Ripple Current @ 100 kHz	430 mA	570 mA
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)
Size / Dimension	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)
Height - Seated (Max)	0.846" (21.50mm)	0.846" (21.50mm)
Package / Case	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The UCYW6220MHD1TO is a qualified substitute for the UCA2G220MHD1TO. The substitute part offers the following advantages:

Active Product Status: The UCYW6220MHD1TO carries an "Active" product status, making it suitable for new designs and ongoing production, whereas the main part is designated "Not For New Designs"
Voltage Margin: The 420 V rating provides a 20 V margin above the original 400 V specification, enhancing circuit reliability
Extended Temperature Range: Operating range extends to -40°C, providing broader environmental compatibility
Improved Ripple Current Handling: Higher ripple current ratings at both 120 Hz and 100 kHz frequencies support higher-stress applications
Compliance: Both parts maintain ROHS3 compliance and identical mechanical compatibility

Selection of the UCYW6220MHD1TO eliminates obsolescence risk while maintaining full electrical and mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the UCYW6220MHD1TO be used as a direct replacement for the UCA2G220MHD1TO?

A: Yes. Both parts share identical capacitance (22 µF), tolerance (±20%), lead spacing (5.00mm), and physical dimensions (12.50mm diameter, 21.50mm height). The substitute meets all mechanical and electrical requirements for direct substitution.

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

A: The UCYW6220MHD1TO provides a 420 V rating compared to the original 400 V. This higher rating does not affect circuit operation at 400 V or lower and provides additional safety margin. No circuit modifications are required.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: No. The UCYW6220MHD1TO operates from -40°C to 105°C, compared to the original -25°C to 105°C. The extended lower temperature limit provides broader environmental compatibility without affecting performance in the original operating range.

Q: Are the ripple current improvements significant?

A: The UCYW6220MHD1TO provides 33% higher ripple current at 120 Hz (285 mA vs. 215 mA) and 33% higher at 100 kHz (570 mA vs. 430 mA). These improvements allow the substitute to handle higher-stress applications while maintaining the same thermal lifetime rating.

Q: What is the impact of the "Active" product status?

A: The UCYW6220MHD1TO is actively manufactured and supported, whereas the UCA2G220MHD1TO is designated "Not For New Designs." Using the substitute ensures long-term availability and supply chain stability for both new and existing production.

Q: Are there any compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The substitute carries "REACH Affected" status compared to "REACH Unaffected" for the original part. Verify REACH compliance requirements for your specific application and region.

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