UPW1J331MHD Equivalent & Substitute Parts

Part Overview

The UPW1J331MHD is a 330 µF, 63 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. 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	330 µF
Voltage Rating	63 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	7000 Hrs
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)
Height	0.787" (20.00 mm)

Substitute Part Grouping Explanation

Substitution for the UPW1J331MHD is determined by strict equivalence in the following parameters:

Capacitance: 330 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)
Operating Temperature Range: -55°C to 105°C (exact match required)
Lead Spacing: 0.197" (5.00 mm) or 0.295" (7.50 mm) acceptable with PCB layout verification
Case Diameter: 0.492" (12.50 mm) or 0.630" (16.00 mm) acceptable with mechanical clearance verification

Substitute parts are grouped into two categories based on lead spacing and case diameter compatibility:

Group A (5.00 mm lead spacing, 12.50 mm diameter): UPJ1J331MHD, UPM1J331MHD, UPS1J331MHD, EEU-FC1J331, EEU-FC1J331B, EEU-FC1J331L

Group B (7.50 mm lead spacing, 16.00 mm diameter): UPJ1J331MHD6, UPM1J331MHD6, ELXY630ELL331ML20S, ELXZ630ELL331MK20S

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height	Product Status	Ratings
UPW1J331MHD	Nichicon	330 µF	63 V	±20%	7000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.787" (20.00 mm)	Not For New Designs	—
UPJ1J331MHD	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	1.043" (26.50 mm)	Not For New Designs	—
UPJ1J331MHD6	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	0.650" (16.50 mm)	Not For New Designs	—
UPM1J331MHD	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs	AEC-Q200
UPM1J331MHD6	Nichicon	330 µF	63 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	0.669" (17.00 mm)	Not For New Designs	AEC-Q200
UPS1J331MHD	Nichicon	330 µF	63 V	±20%	3000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	—
EEU-FC1J331	Panasonic Electronic Components	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.787" (20.00 mm)	Active	AEC-Q200
EEU-FC1J331B	Panasonic Electronic Components	330 µF	63 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	AEC-Q200
EEU-FC1J331L	Panasonic Electronic Components	330 µF	63 V	±20%	3000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.181" (30.00 mm)	Active	AEC-Q200
ELXY630ELL331ML20S	Chemi-Con	330 µF	63 V	±20%	8000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.787" (20.00 mm)	Active	AEC-Q200
ELXZ630ELL331MK20S	Chemi-Con	330 µF	63 V	±20%	7000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.846" (21.50 mm)	Active	AEC-Q200

Engineering Selection Recommendations

For Active Product Status Applications:

EEU-FC1J331 (Panasonic) and ELXZ630ELL331MK20S (Chemi-Con) are the primary recommendations. Both are Active products with AEC-Q200 certification, ensuring ongoing manufacturer support and supply chain availability. EEU-FC1J331 matches the original UPW1J331MHD in physical dimensions (0.492" diameter, 0.787" height, 5.00 mm lead spacing) and electrical performance. ELXZ630ELL331MK20S provides equivalent electrical performance with extended lifetime (7000 Hrs @ 105°C) and AEC-Q200 rating, though with slightly different physical dimensions.

For Nichicon Product Line Continuity:

UPM1J331MHD and UPM1J331MHD6 are Nichicon alternatives with AEC-Q200 certification. These parts maintain manufacturer lineage while offering automotive-grade reliability. Height differences must be verified against PCB layout constraints.

For Non-Automotive Applications:

UPJ1J331MHD and UPS1J331MHD provide cost-effective alternatives without automotive certification. Selection depends on application requirements and lifetime specifications.

Physical Compatibility Verification:

Parts with 0.295" (7.50 mm) lead spacing (UPJ1J331MHD6, UPM1J331MHD6, ELXY630ELL331ML20S) require PCB footprint modification. Parts with different case diameters (EEU-FC1J331L: 0.394" diameter) require mechanical clearance verification.

Frequently Asked Questions (FAQ)

Q: Can UPJ1J331MHD6 replace UPW1J331MHD directly on the PCB?

A: No. UPJ1J331MHD6 has 0.295" (7.50 mm) lead spacing versus the original 5.00 mm spacing. PCB footprint modification is required. Verify mechanical clearance around the component location.

Q: What is the difference between EEU-FC1J331 and EEU-FC1J331B?

A: Both are Panasonic FC series with identical electrical specifications (330 µF, 63 V, 5000 Hrs @ 105°C, AEC-Q200). The primary difference is packaging: EEU-FC1J331 is supplied in Bulk, while EEU-FC1J331B is supplied in Cut Tape (CT). Height differs slightly (0.787" vs 0.866"). Verify height clearance for your application.

Q: Is ELXY630ELL331ML20S compatible with the original UPW1J331MHD footprint?

A: No. ELXY630ELL331ML20S has 0.295" (7.50 mm) lead spacing and 0.630" (16.00 mm) case diameter, differing from the original 5.00 mm spacing and 0.492" diameter. PCB redesign is required.

Q: Why does UPM1J331MHD have lower impedance (49 mOhms) than UPW1J331MHD (85 mOhms)?

A: Impedance differences reflect internal construction variations between product series. Both meet the 330 µF, 63 V, ±20% specification. Verify impedance requirements for your specific application, particularly for high-frequency ripple current filtering.

Q: Can I use EEU-FC1J331L as a direct replacement?

A: EEU-FC1J331L meets electrical specifications but has different physical dimensions: 0.394" diameter (vs 0.492") and 1.181" height (vs 0.787"). Mechanical clearance verification is mandatory. The 3000 Hrs @ 105°C lifetime is also reduced compared to the original 7000 Hrs.

Q: What does AEC-Q200 certification mean for capacitor selection?

A: AEC-Q200 is an automotive electronics qualification standard. Parts with this rating (EEU-FC1J331, UPM1J331MHD, ELXY630ELL331ML20S, ELXZ630ELL331MK20S) are qualified for automotive applications and provide enhanced reliability documentation. Use AEC-Q200 parts for automotive or mission-critical applications.

Q: Is ROHS3 compliance relevant for substitution?

A: All listed parts are ROHS3 compliant. This is a baseline requirement and does not differentiate substitutes.

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