UPW1H331MPD Equivalent & Substitute Parts

Part Overview

The UPW1H331MPD is a 330 µF, 50 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 This component is classified as "Not For New Designs," indicating it has been superseded in Nichicon's product line. Organizations using this part in existing designs or requiring replacement stock must identify functionally equivalent alternatives that maintain electrical and mechanical compatibility within the application's constraints.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height	0.787" (20.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UPW1H331MPD is determined by strict equivalence across the following parameters:

Electrical Match: Capacitance (330 µF), voltage rating (50 V), and tolerance (±20%) must be identical
Thermal Performance: Lifetime rating of 5000 Hrs @ 105°C or greater
Operating Range: Temperature range of -55°C ~ 105°C or wider
Mechanical Compatibility: Through-hole radial configuration with lead spacing of 0.197" (5.00 mm)
Regulatory Compliance: ROHS3 compliance required

Substitute parts are grouped into two categories:

Category A - Direct Mechanical Fit (Identical Footprint) Parts with matching lead spacing (0.197" / 5.00 mm) and compatible physical dimensions: UPJ1H331MPD, EEU-FC1H331, EEU-FC1H331B, ELXY500ELL331MJ30S, ELXZ500ELL331MJ25S

Category B - Electrical Equivalent with Modified Footprint Parts meeting all electrical and thermal requirements but with different lead spacing or dimensions: UPJ1H331MHD6, UPM1H331MHD6, EEU-FC1H331L, ELXY500ELL331MK20S

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Product Status	Ratings
UPW1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.787" (20.00 mm)	Not For New Designs	—
UPJ1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.299" (33.00 mm)	Not For New Designs	—
UPJ1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.650" (16.50 mm)	Not For New Designs	—
UPM1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.669" (17.00 mm)	Not For New Designs	AEC-Q200
EEU-FC1H331	Panasonic	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.787" (20.00 mm)	Active	AEC-Q200
EEU-FC1H331B	Panasonic	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	AEC-Q200
EEU-FC1H331L	Panasonic	330 µF	50 V	±20%	3000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.260" (32.00 mm)	Active	AEC-Q200
ELXY500ELL331MJ30S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.240" (31.50 mm)	Active	AEC-Q200
ELXY500ELL331MK20S	Chemi-Con	330 µF	50 V	±20%	7000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.846" (21.50 mm)	Active	AEC-Q200
ELXZ500ELL331MJ25S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.043" (26.50 mm)	Active	AEC-Q200

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Modification)

UPJ1H331MPD remains the closest Nichicon equivalent with identical lead spacing (0.197" / 5.00 mm) and matching electrical specifications. However, height differs at 1.299" versus the original 0.787", requiring clearance verification. EEU-FC1H331 and EEU-FC1H331B from Panasonic maintain the same lead spacing with active product status and AEC-Q200 automotive qualification, though diameter increases to 0.492" (12.50 mm).

For Automotive Applications

UPM1H331MHD6, EEU-FC1H331, EEU-FC1H331B, ELXY500ELL331MJ30S, ELXY500ELL331MK20S, and ELXZ500ELL331MJ25S all carry AEC-Q200 certification. Among these, ELXY500ELL331MK20S provides extended thermal life (7000 Hrs @ 105°C) with active product status.

For General Purpose Applications with Active Product Status

Panasonic EEU-FC series (EEU-FC1H331, EEU-FC1H331B) and Chemi-Con LXY/LXZ series (ELXY500ELL331MJ30S, ELXY500ELL331MK20S, ELXZ500ELL331MJ25S) are all actively manufactured and ROHS3 compliant.

Thermal Lifetime Consideration

EEU-FC1H331L provides only 3000 Hrs @ 105°C and should be selected only when application thermal stress is lower than the original design specification.

Frequently Asked Questions (FAQ)

Q: Can UPJ1H331MPD be used as a direct replacement for UPW1H331MPD?

A: UPJ1H331MPD matches all electrical parameters and lead spacing. The height difference (1.299" vs. 0.787") requires verification of available PCB clearance above the component. If vertical space is constrained, this part may not fit.

Q: What is the difference between parts with 5000 Hrs and 7000 Hrs lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches 80% of initial value. ELXY500ELL331MK20S (7000 Hrs) provides extended service life in high-temperature environments compared to 5000 Hrs variants.

Q: Are Panasonic EEU-FC1H331 and Chemi-Con ELXY500ELL331MJ30S interchangeable with the original UPW1H331MPD?

A: Both match electrical specifications and lead spacing (0.197" / 5.00 mm). Diameter increases to 0.492" (12.50 mm) for EEU-FC1H331 and remains 0.394" (10.00 mm) for ELXY500ELL331MJ30S. Height varies across all three parts. Physical fit must be confirmed against PCB layout constraints.

Q: Why do some substitutes have different diameters if capacitance is identical?

A: Capacitor manufacturers use different internal construction geometries and materials. Diameter variation reflects design choices in electrode configuration and electrolyte formulation while maintaining the same electrical performance.

Q: Which substitute has the lowest impedance?

A: ELXY500ELL331MJ30S provides 54 mOhms impedance, the lowest among all listed parts. Lower impedance reduces voltage ripple and heat generation in high-frequency applications.

Q: Can I use EEU-FC1H331L as a cost-effective alternative?

A: EEU-FC1H331L is electrically compatible but provides only 3000 Hrs @ 105°C thermal life versus the original 5000 Hrs. Use only if application thermal stress is confirmed to be lower than the original design specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message