Nichicon UPW1V221MPD Equivalent & Substitute Parts

Part Overview

The Nichicon UPW1V221MPD is a 220 µF, 35 V aluminum electrolytic capacitor in radial configuration with 5000 hours lifetime at 105°C. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. Finding equivalent and substitute parts is necessary for maintenance, repair, and legacy system support where original components are unavailable or inventory is depleted.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height	0.492" (12.50 mm)
Mounting Type	Through Hole Radial
Ripple Current @ 120 Hz	494 mA
Ripple Current @ 100 kHz	760 mA
Impedance	90 mOhms

Substitute Part Grouping Explanation

Substitution of the UPW1V221MPD is determined by strict equivalence across the following parameters:

Electrical equivalence: Capacitance (220 µF), voltage rating (35 V), and tolerance (±20%) must match exactly
Thermal performance: Lifetime rating at 105°C must be equal to or greater than 5000 hours
Mechanical compatibility: Lead spacing (5.00 mm), case diameter (10.00 mm), and mounting type (through hole radial) must match to ensure PCB fit without rework
Operating temperature range: Must support -55°C to 105°C minimum
Ripple current capability: Must meet or exceed the specified ripple current ratings at both low frequency (120 Hz) and high frequency (100 kHz)

Substitute parts are grouped into two categories:

Category A - Nichicon Series (Same Manufacturer) Parts from Nichicon's UPJ, UPM, and UPS series that share identical electrical and mechanical specifications with the UPW1V221MPD.

Category B - Cross-Manufacturer Equivalents Parts from Panasonic (EEU-FC series) and Chemi-Con (ELXZ, ELXY, EKY series) that meet all electrical and mechanical requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Case Dia	Height	Ripple @ 120 Hz	Ripple @ 100 kHz	Impedance	Status
UPW1V221MPD	Nichicon	220 µF	35 V	5000 Hrs	5.00 mm	10.00 mm	12.50 mm	494 mA	760 mA	90 mOhms	Not For New Designs
UPJ1V221MPD6	Nichicon	220 µF	35 V	5000 Hrs	5.00 mm	10.00 mm	15.00 mm	560 mA	770 mA	140 mOhms	Not For New Designs
UPM1V221MPD6	Nichicon	220 µF	35 V	5000 Hrs	5.00 mm	10.00 mm	17.00 mm	600 mA	825 mA	90 mOhms	Not For New Designs
EEU-FC1V221	Panasonic	220 µF	35 V	3000 Hrs	5.00 mm	10.00 mm	12.50 mm	490.8 mA	755 mA	90 mOhms	Active
ELXZ350ELL221MJC5S	Chemi-Con	220 µF	35 V	5000 Hrs	5.00 mm	10.00 mm	14.00 mm	380 mA	760 mA	90 mOhms	Active

Engineering Selection Recommendations

For direct replacement with identical specifications: The Nichicon UPJ1V221MPD6 and UPM1V221MPD6 provide 5000-hour lifetime matching at 35 V and 220 µF. Both maintain the 5.00 mm lead spacing and 10.00 mm case diameter required for PCB compatibility. Height differences (15.00 mm and 17.00 mm respectively versus 12.50 mm original) must be verified against available board clearance. The UPM1V221MPD6 carries AEC-Q200 automotive qualification and is suitable for applications requiring enhanced reliability.

For active product status: The Panasonic EEU-FC1V221 is an active product with identical mechanical footprint (5.00 mm lead spacing, 10.00 mm diameter, 12.50 mm height) and matching electrical characteristics. However, its 3000-hour lifetime at 105°C is lower than the UPW1V221MPD specification. This part is suitable only for applications where 3000-hour lifetime is acceptable. The EEU-FC1V221 carries AEC-Q200 certification.

The Chemi-Con ELXZ350ELL221MJC5S meets all electrical and mechanical requirements with 5000-hour lifetime, AEC-Q200 qualification, and active product status. Height is 14.00 mm, requiring clearance verification.

For general purpose applications without automotive requirements: The Chemi-Con EKY-350ELL221MJC5S offers extended 7000-hour lifetime at 105°C with identical mechanical compatibility. Operating temperature range is -40°C to 105°C (versus -55°C to 105°C on the original), which is acceptable for most industrial applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower lifetime rating? A: No. The UPW1V221MPD specifies 5000 hours at 105°C. Substitutes must meet or exceed this rating to maintain equivalent reliability. Parts with 3000-hour or 2000-hour ratings are not direct equivalents and should only be used if application requirements explicitly allow reduced lifetime.

Q: Does lead spacing matter if the capacitor fits the hole? A: Yes. The 5.00 mm lead spacing is a critical mechanical parameter. Parts with 4.60 mm spacing will not fit the PCB without rework, even if the case diameter is compatible. Always verify lead spacing matches the original design.

Q: Are Panasonic and Chemi-Con parts truly equivalent to Nichicon? A: Cross-manufacturer substitution is valid only when all electrical parameters (capacitance, voltage, tolerance, ripple current, impedance) and mechanical parameters (lead spacing, case diameter, height) match the original specification. Verify each parameter before selection.

Q: What does "Not For New Designs" mean for the original part? A: This designation indicates the UPW1V221MPD has been discontinued or superseded by Nichicon. It remains available for legacy system support and repair, but new designs should use active products such as the Panasonic EEU-FC1V221 or Chemi-Con ELXZ350ELL221MJC5S.

Q: Can I substitute a part with higher ripple current rating? A: Yes. Higher ripple current capability provides design margin and is acceptable. Lower ripple current ratings are not acceptable as they indicate reduced thermal performance under AC stress.

Q: Does AEC-Q200 certification matter for non-automotive applications? A: AEC-Q200 certification indicates enhanced reliability testing and is not required for general purpose applications. However, it provides additional assurance of component quality and is beneficial for mission-critical systems regardless of application type.

Q: What if the substitute part is taller than the original? A: Height differences must be evaluated against available PCB clearance. Verify that the taller substitute does not interfere with adjacent components, shielding, or enclosure constraints before installation.

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