UPV0J121MFD Equivalent & Substitute Parts

Part Overview

The UPV0J121MFD is a 120 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 105°C with a rated lifetime of 5000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and reliable performance in through-hole mounting configurations.

Key Parameters

Parameter	Value
Capacitance	120 µF
Voltage Rating	6.3 V
Tolerance	±20%
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	5000 Hrs
Impedance	1.1 Ohms
Lead Spacing	0.079" (2.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UPV0J121MFD is determined by strict equivalence across the following parameters: capacitance value (120 µF), voltage rating (6.3 V), tolerance (±20%), operating temperature range (-55°C to 105°C), package type (radial, can), and mounting configuration (through hole). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional compatibility in circuit applications.

The substitute parts are grouped into two categories based on manufacturer and product status:

Nichicon UPJ Series (Obsolete): UPJ0J121MDD maintains identical capacitance, voltage, and tolerance specifications with equivalent through-hole mounting. This part differs in lifetime rating (2000 hours at 105°C versus 5000 hours) and physical height (12.00 mm versus 12.50 mm), representing a direct mechanical and electrical alternative within the same manufacturer family.

Panasonic FC Series (Active): EEA-FC0J121, EEA-FC0J121B, and EEA-FC0J121H are active production parts from Panasonic Electronic Components, all maintaining the same 120 µF, 6.3 V, ±20% specification. These parts carry AEC-Q200 automotive qualification and differ in lead spacing, physical dimensions, and packaging format (bulk, cut tape, or tape & box), while maintaining full electrical equivalence.

Parameter Comparison

Parameter	UPV0J121MFD	UPJ0J121MDD	EEA-FC0J121	EEA-FC0J121B	EEA-FC0J121H
Manufacturer	Nichicon	Nichicon	Panasonic	Panasonic	Panasonic
Capacitance	120 µF	120 µF	120 µF	120 µF	120 µF
Voltage Rating	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Lifetime @ 105°C	5000 Hrs	2000 Hrs	1000 Hrs	1000 Hrs	1000 Hrs
Impedance	1.1 Ohms	1.1 Ohms	450 mOhms	450 mOhms	450 mOhms
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.098" (2.50 mm)	0.197" (5.00 mm)	0.098" (2.50 mm)
Size / Dimension	0.197" Dia (5.00 mm)	0.197" Dia (5.00 mm)	0.248" Dia (6.30 mm)	0.248" Dia (6.30 mm)	0.248" Dia (6.30 mm)
Height - Seated (Max)	0.492" (12.50 mm)	0.472" (12.00 mm)	0.315" (8.00 mm)	0.374" (9.50 mm)	0.315" (8.00 mm)
Product Status	Obsolete	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Radial, Can	Bulk	Bulk	Cut Tape (CT)	Tape & Box (TB)

Engineering Selection Recommendations

For applications requiring direct pin-compatible replacement with minimal PCB modification, UPJ0J121MDD offers the closest mechanical fit, maintaining identical lead spacing (2.00 mm) and similar physical dimensions. This part is suitable where the reduced lifetime rating (2000 hours at 105°C) meets application requirements.

For new designs or production requiring active-status components with extended supply chain availability, the Panasonic EEA-FC series (EEA-FC0J121, EEA-FC0J121B, EEA-FC0J121H) provides ROHS3 compliance and AEC-Q200 automotive qualification. Selection among these three variants depends on packaging requirements and PCB layout constraints. EEA-FC0J121 and EEA-FC0J121H both feature 2.50 mm lead spacing with identical electrical performance; EEA-FC0J121B accommodates 5.00 mm lead spacing for designs with wider pad pitch. All three Panasonic variants feature lower impedance (450 mOhms) compared to the original part, improving high-frequency performance characteristics.

Physical dimension differences in the Panasonic parts (larger diameter and reduced height) require PCB footprint verification before implementation. Lead spacing variation necessitates layout confirmation to ensure compatibility with existing through-hole pad patterns.

Frequently Asked Questions (FAQ)

Q: Can EEA-FC0J121 directly replace UPV0J121MFD without PCB modification?

A: Electrical substitution is direct; however, physical dimensions differ. The Panasonic part features a larger diameter (6.30 mm versus 5.00 mm) and reduced height (8.00 mm versus 12.50 mm). Lead spacing is also different (2.50 mm versus 2.00 mm), requiring PCB footprint verification and potential pad repositioning.

Q: What is the impact of the reduced lifetime rating in UPJ0J121MDD?

A: UPJ0J121MDD is rated for 2000 hours at 105°C compared to 5000 hours for the original UPV0J121MFD. This reduction affects long-term reliability in high-temperature applications. Applications operating continuously at elevated temperatures should account for this difference in design life calculations.

Q: Why do the Panasonic EEA-FC parts have lower impedance?

A: Lower impedance (450 mOhms versus 1.1 Ohms) is a characteristic difference between the Nichicon UPV/UPJ series and the Panasonic FC series. This provides improved performance at higher frequencies and lower ripple current sensitivity, representing a technical advantage in most applications.

Q: Which Panasonic variant should be selected for 2.00 mm lead spacing compatibility?

A: None of the Panasonic EEA-FC variants maintain 2.00 mm lead spacing. EEA-FC0J121 and EEA-FC0J121H both feature 2.50 mm spacing, while EEA-FC0J121B features 5.00 mm spacing. For closest mechanical compatibility with the original 2.00 mm spacing, UPJ0J121MDD remains the preferred option.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. UPV0J121MFD, UPJ0J121MDD, and all three Panasonic EEA-FC variants are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and assembly.

Q: What packaging options are available for the Panasonic substitutes?

A: EEA-FC0J121 is supplied in bulk packaging, EEA-FC0J121B in cut tape format, and EEA-FC0J121H in tape & box format. Selection depends on procurement volume and assembly process requirements.

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