UPW1J121MPD Equivalent & Substitute Parts

Part Overview

The UPW1J121MPD is a 120 µF, 63 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Finding equivalent and substitute parts is necessary for maintenance, repair, and legacy system support where original components may no longer be readily available or where design flexibility permits alternative qualified sources.

Key Parameters

Parameter	Value
Capacitance	120 µF
Voltage Rating	63 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Size / Dimension	0.394" Dia (10.00 mm)
Operating Temperature Range	-55°C ~ 105°C
Lifetime @ Temperature	5000 Hrs @ 105°C

Substitute Part Grouping Explanation

Substitution eligibility for the UPW1J121MPD is determined by strict adherence to the following core parameters:

Capacitance: 120 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Size / Dimension: 0.394" Dia (10.00 mm) (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)

All substitute parts listed meet these mandatory criteria. Secondary parameters such as ripple current ratings, impedance, lifetime hours, and manufacturer certifications may vary within acceptable ranges for the application category but do not disqualify substitution eligibility.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lead Spacing	Height (Max)	Lifetime @ 105°C	Operating Temp	Product Status
UPW1J121MPD	Nichicon	UPW	120 µF	63 V	±20%	0.197" (5.00 mm)	0.630" (16.00 mm)	5000 Hrs	-55°C ~ 105°C	Not For New Designs
UPJ1J121MPD	Nichicon	UPJ	120 µF	63 V	±20%	0.197" (5.00 mm)	0.846" (21.50 mm)	5000 Hrs	-55°C ~ 105°C	Not For New Designs
UPM1J121MPD	Nichicon	UPM	120 µF	63 V	±20%	0.197" (5.00 mm)	0.866" (22.00 mm)	5000 Hrs	-55°C ~ 105°C	Not For New Designs
EEU-FC1J121	Panasonic Electronic Components	FC	120 µF	63 V	±20%	0.197" (5.00 mm)	0.630" (16.00 mm)	3000 Hrs	-55°C ~ 105°C	Active
EEU-FC1J121B	Panasonic Electronic Components	FC	120 µF	63 V	±20%	0.197" (5.00 mm)	0.669" (17.00 mm)	3000 Hrs	-55°C ~ 105°C	Active
ELXZ630ELL121MJ16S	Chemi-Con	LXZ	120 µF	63 V	±20%	0.197" (5.00 mm)	0.689" (17.50 mm)	5000 Hrs	-55°C ~ 105°C	Active
ELXY630ELL121MJ20S	Chemi-Con	LXY	120 µF	63 V	±20%	0.197" (5.00 mm)	0.846" (21.50 mm)	5000 Hrs	-55°C ~ 105°C	Active

Engineering Selection Recommendations

For Active Product Status Applications:

EEU-FC1J121 and EEU-FC1J121B (Panasonic) and ELXZ630ELL121MJ16S and ELXY630ELL121MJ20S (Chemi-Con) are actively manufactured and carry AEC-Q200 automotive qualification. These parts are suitable for new designs and applications requiring long-term supply chain stability.

For Legacy System Maintenance:

UPJ1J121MPD and UPM1J121MPD (Nichicon) maintain the same electrical specifications and lifetime rating as the UPW1J121MPD. UPM1J121MPD includes AEC-Q200 certification and is suitable for automotive applications.

Height Considerations:

The UPW1J121MPD has a maximum seated height of 0.630" (16.00 mm). Direct height-matched substitutes are EEU-FC1J121 at 0.630" (16.00 mm) and ELXZ630ELL121MJ16S at 0.689" (17.50 mm). Taller alternatives (UPJ1J121MPD, UPM1J121MPD, EEU-FC1J121B, ELXY630ELL121MJ20S) range from 0.846" to 0.866" and require PCB layout verification for clearance.

Lifetime Rating Considerations:

The UPW1J121MPD is rated for 5000 hours at 105°C. Panasonic EEU-FC series parts are rated for 3000 hours at 105°C. For applications requiring extended thermal life, Nichicon UPJ1J121MPD, UPM1J121MPD, and Chemi-Con ELXZ630ELL121MJ16S and ELXY630ELL121MJ20S maintain the 5000-hour rating.

Frequently Asked Questions (FAQ)

Q: Can I substitute the UPW1J121MPD with any of the listed parts?

A: Yes, all listed parts meet the mandatory electrical and mechanical parameters: 120 µF capacitance, 63 V voltage rating, ±20% tolerance, polar configuration, radial can package, through-hole mounting, 0.197" (5.00 mm) lead spacing, and 0.394" (10.00 mm) diameter. Physical height and lifetime ratings vary and must be verified against your specific application requirements.

Q: What is the difference between the Nichicon UPW, UPJ, and UPM series?

A: All three series share identical electrical specifications for the 120 µF 63 V rating. The primary differences are physical height (UPW: 16.00 mm, UPJ: 21.50 mm, UPM: 22.00 mm) and product status (UPW and UPJ are not for new designs; UPM includes AEC-Q200 automotive qualification). UPM is suitable for automotive applications requiring compliance certification.

Q: Why do Panasonic EEU-FC parts have a lower lifetime rating?

A: The EEU-FC1J121 and EEU-FC1J121B are rated for 3000 hours at 105°C, compared to 5000 hours for the UPW1J121MPD and other alternatives. This difference reflects different design specifications within the same electrical rating class. Both ratings are valid for general-purpose and automotive applications; selection depends on thermal stress requirements in your specific circuit.

Q: Are there packaging differences I should consider?

A: EEU-FC1J121 is supplied in Bulk packaging, while EEU-FC1J121B is supplied in Cut Tape (CT) packaging. All other parts are supplied in Bulk. Packaging affects handling and assembly processes but does not impact electrical or mechanical compatibility.

Q: Which substitute offers the best height compatibility with the original UPW1J121MPD?

A: EEU-FC1J121 (Panasonic) matches the original height of 0.630" (16.00 mm) exactly. ELXZ630ELL121MJ16S (Chemi-Con) at 0.689" (17.50 mm) offers minimal height increase. All other alternatives exceed 0.846" (21.50 mm) and require PCB layout verification.

Q: Can I use these parts in automotive applications?

A: EEU-FC1J121, EEU-FC1J121B, ELXZ630ELL121MJ16S, ELXY630ELL121MJ20S, and UPM1J121MPD carry AEC-Q200 automotive qualification and are suitable for automotive applications. UPW1J121MPD, UPJ1J121MPD do not carry automotive certification.

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