UPM1H331MHD6 Equivalent & Substitute Parts

Part Overview

The UPM1H331MHD6 is a 330 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 5000 hours at 105°C and carries AEC-Q200 automotive qualification. The part is designated as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing production support and design flexibility.

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
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Operating Temperature Range: -55°C ~ 105°C minimum (equal or wider range acceptable)
Lifetime @ Temperature: 5000 Hrs @ 105°C minimum (equal or greater acceptable)
RoHS Status: ROHS3 Compliant (required)

Parts are grouped into two categories:

Direct Equivalents: Parts meeting all core parameters with identical or superior electrical performance characteristics (impedance, ripple current ratings).

Functional Alternatives: Parts meeting all core parameters with variations in physical dimensions, lead spacing, or height that may require PCB layout verification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Polarization	Lead Spacing	Size (Dia)	Height (Max)	Impedance	AEC-Q200	Product Status
UPM1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.295" (7.50mm)	0.630" (16.00mm)	0.669" (17.00mm)	60 mOhms	Yes	Not For New Designs
UPJ1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.295" (7.50mm)	0.630" (16.00mm)	0.650" (16.50mm)	78 mOhms	No	Not For New Designs
UPJ1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.394" (10.00mm)	1.299" (33.00mm)	72 mOhms	No	Not For New Designs
UPW1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.394" (10.00mm)	0.787" (20.00mm)	90 mOhms	No	Not For New Designs
ECE-A1HN331U	Panasonic Electronic Components	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	Bi-Polar	0.295" (7.50mm)	0.630" (16.00mm)	0.984" (25.00mm)	—	No	Active
EEU-FC1H331	Panasonic Electronic Components	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.492" (12.50mm)	0.787" (20.00mm)	63 mOhms	Yes	Active
EEU-FC1H331B	Panasonic Electronic Components	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	63 mOhms	Yes	Active
EEU-FC1H331L	Panasonic Electronic Components	330 µF	50 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.394" (10.00mm)	1.260" (32.00mm)	60 mOhms	Yes	Active
ELXY500ELL331MJ30S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.394" (10.00mm)	1.240" (31.50mm)	54 mOhms	Yes	Active
ELXY500ELL331MK20S	Chemi-Con	330 µF	50 V	±20%	7000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	59 mOhms	Yes	Active
ELXZ500ELL331MJ25S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Polar	0.197" (5.00mm)	0.394" (10.00mm)	1.043" (26.50mm)	73 mOhms	Yes	Active

Engineering Selection Recommendations

Primary Substitutes (Automotive-Qualified, Active Status):

EEU-FC1H331 and EEU-FC1H331B (Panasonic) are direct functional equivalents with AEC-Q200 qualification and active product status. Both maintain 5000 hours @ 105°C lifetime and -55°C ~ 105°C operating range. Physical dimensions differ; lead spacing is 0.197" (5.00mm) versus the original 0.295" (7.50mm), requiring PCB layout verification. Impedance is 63 mOhms, superior to the original 60 mOhms specification.

Secondary Substitutes (Automotive-Qualified, Active Status):

ELXY500ELL331MJ30S and ELXY500ELL331MK20S (Chemi-Con) meet all core electrical parameters with AEC-Q200 qualification. ELXY500ELL331MK20S offers extended lifetime of 7000 hours @ 105°C. Both require PCB layout verification due to reduced lead spacing (0.197" vs. 0.295") and smaller diameter (0.394" or 0.492" vs. 0.630").

ELXZ500ELL331MJ25S (Chemi-Con) provides equivalent performance with 5000 hours @ 105°C and AEC-Q200 qualification. Lead spacing and diameter differ from the original; height is 1.043" (26.50mm).

Tertiary Substitutes (Non-Automotive, Active Status):

UPJ1H331MHD6 (Nichicon) matches physical dimensions and lead spacing of the original part but lacks AEC-Q200 qualification. Suitable for general-purpose applications where automotive qualification is not required.

Not Recommended:

ECE-A1HN331U (Panasonic) has bi-polar polarization, reduced operating temperature range (-40°C ~ 85°C), and lower lifetime rating (2000 Hrs @ 85°C), making it unsuitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can UPJ1H331MHD6 replace UPM1H331MHD6 in automotive applications?

A: No. UPJ1H331MHD6 lacks AEC-Q200 automotive qualification. While electrical parameters and physical dimensions are compatible, automotive applications require AEC-Q200 certification. Use EEU-FC1H331 or EEU-FC1H331B instead.

Q: What is the primary difference between EEU-FC1H331 and EEU-FC1H331B?

A: Both parts are electrically identical with 330 µF, 50 V, 5000 Hrs @ 105°C, and AEC-Q200 qualification. The difference is packaging: EEU-FC1H331 is supplied in Bulk; EEU-FC1H331B is supplied in Cut Tape (CT). Height also differs slightly: 0.787" versus 0.866".

Q: Do all substitute parts fit the same PCB footprint as UPM1H331MHD6?

A: No. UPM1H331MHD6 has lead spacing of 0.295" (7.50mm) and diameter of 0.630" (16.00mm). Most substitutes have reduced lead spacing of 0.197" (5.00mm) and smaller diameters. PCB layout verification is required before substitution.

Q: Which substitute offers the longest operational lifetime?

A: ELXY500ELL331MK20S (Chemi-Con) provides 7000 hours @ 105°C, exceeding the original 5000-hour specification. All other substitutes maintain the 5000-hour rating or lower.

Q: Is ECE-A1HN331U a suitable substitute?

A: No. ECE-A1HN331U has bi-polar polarization (versus polar), reduced operating temperature range (-40°C ~ 85°C versus -55°C ~ 105°C), and lower lifetime (2000 Hrs @ 85°C). It does not meet substitution criteria.

Q: What impedance differences exist among substitutes?

A: Original UPM1H331MHD6 has 60 mOhms impedance. Substitutes range from 54 mOhms (ELXY500ELL331MJ30S, lowest) to 90 mOhms (UPW1H331MPD, highest). Lower impedance generally indicates superior high-frequency performance.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes carry ROHS3 Compliant status, matching the original part.

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