UES1V221MHM1TO Equivalent & Substitute Parts

Part Overview

The UES1V221MHM1TO is a 220 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 1000 hours at 85°C and is designated as Not For New Designs. Due to its obsolescence status and limited operational lifetime, identifying equivalent substitute parts with improved specifications is essential for design continuity and long-term reliability in applications requiring extended service life.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ 85°C	1000 Hrs
Operating Temperature Range	-40°C ~ 85°C
Polarization	Bi-Polar
Lead Spacing	0.197" (5.00mm)
Case Diameter	0.492" (12.50mm)
Mounting Type	Through Hole
Package Type	Radial, Can

Substitute Part Grouping Explanation

Substitution eligibility for the UES1V221MHM1TO is determined by the following critical parameters:

Capacitance Value: Must be 220 µF (exact match required)
Voltage Rating: Must be equal to or greater than 35 V
Tolerance: Must be ±20% or tighter
Lead Spacing: Must be 0.197" (5.00mm) for PCB compatibility
Case Diameter: Must be 0.492" (12.50mm) for mechanical fit
Mounting Type: Must be Through Hole
Package Configuration: Must be Radial, Can

Both substitute parts meet these criteria. The UVP1H221MHD1TO and ECE-A1HN221UB provide improved voltage ratings (50 V) and extended operational lifetime (2000 Hrs @ 85°C) while maintaining identical mechanical and electrical compatibility with the original design footprint.

Parameter Comparison

Parameter	UES1V221MHM1TO (Main)	UVP1H221MHD1TO (Substitute)	ECE-A1HN221UB (Substitute)
Manufacturer	Nichicon	Nichicon	Panasonic Electronic Components
Capacitance	220 µF	220 µF	220 µF
Voltage Rating	35 V	50 V	50 V
Tolerance	±20%	±20%	±20%
Lifetime @ 85°C	1000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Bi-Polar	Bi-Polar	Bi-Polar
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Case Diameter	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)
Height (Max)	1.043" (26.50mm)	1.063" (27.00mm)	1.063" (27.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Not For New Designs	Active

Engineering Selection Recommendations

UVP1H221MHD1TO (Nichicon): This substitute maintains manufacturer continuity with Nichicon while providing a 50 V voltage rating and doubled operational lifetime to 2000 hours at 85°C. The part is mechanically and electrically compatible with the original design. However, this part carries a "Not For New Designs" status, making it suitable for legacy system maintenance and repair applications only.

ECE-A1HN221UB (Panasonic Electronic Components): This substitute offers the same electrical specifications as the UVP1H221MHD1TO with an Active product status, indicating ongoing manufacturer support and availability. The Panasonic ECE-A1HN221UB is the preferred choice for new designs and long-term production requirements. It provides 50 V rating, 2000-hour lifetime at 85°C, and full ROHS3 compliance with REACH Unaffected status.

Both substitutes accommodate the 0.2mm height increase (from 26.50mm to 27.00mm) within typical PCB design tolerances for through-hole components.

Frequently Asked Questions (FAQ)

Q: Can the UVP1H221MHD1TO or ECE-A1HN221UB be used as direct replacements in existing designs?

A: Yes. Both substitutes are mechanically and electrically compatible with the UES1V221MHM1TO. They share identical capacitance (220 µF), tolerance (±20%), lead spacing (5.00mm), case diameter (12.50mm), and mounting configuration (Through Hole, Radial). The height increase of 0.02" (0.50mm) is negligible for standard PCB layouts.

Q: What is the advantage of the higher 50 V rating in the substitute parts?

A: The 50 V rating provides additional voltage margin above the original 35 V specification. This margin improves reliability and extends component life when operating in circuits with voltage transients or ripple conditions.

Q: Why does the ECE-A1HN221UB have an Active product status while the UVP1H221MHD1TO does not?

A: The ECE-A1HN221UB is actively manufactured and supported by Panasonic, ensuring long-term availability and supply chain stability. The UVP1H221MHD1TO, while functionally equivalent, is in end-of-life status at Nichicon. For new designs and production programs, the ECE-A1HN221UB is the recommended choice.

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

A: Both substitutes are ROHS3 compliant. The ECE-A1HN221UB carries REACH Unaffected status, while the UVP1H221MHD1TO is REACH Affected. For applications subject to REACH regulations, the ECE-A1HN221UB is the appropriate selection.

Q: What is the significance of the doubled lifetime specification (2000 Hrs @ 85°C vs. 1000 Hrs)?

A: The extended lifetime indicates improved internal construction and materials in the substitute parts. This specification reflects the capacitor's expected operational duration under continuous stress at maximum rated temperature. The doubled lifetime provides greater reliability margin for applications requiring extended service intervals.

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