URY1H331MHD Equivalent & Substitute Parts

Part Overview

The URY1H331MHD is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications. The product status is obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00mm)
Size / Dimension	0.492" Dia (12.50mm)
Height - Seated (Max)	0.551" (14.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the URY1H331MHD is determined by strict equivalence in the following 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 (exact match required)

Substitute parts are grouped into two categories based on lifetime rating and product status:

Category 1: Direct Equivalents (2000 Hrs @ 105°C) Parts with identical lifetime specifications and active or current product status. These provide direct replacement capability with no performance degradation.

Category 2: Enhanced Performance Substitutes (5000 Hrs @ 105°C) Parts with extended lifetime ratings. These offer improved reliability margins and are suitable for applications requiring longer operational life.

Category 3: Legacy Alternatives (1000 Hrs @ 105°C) Parts with reduced lifetime ratings. These are suitable only when the original 2000-hour specification can be relaxed.

Physical dimensions, lead spacing, and ripple current ratings vary among substitutes but remain within the radial, can package family. Selection must account for PCB layout constraints and thermal management requirements.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Product Status	Lead Spacing	Size Dia	Height (Max)	Ripple Current @ 120 Hz
URY1H331MHD	Nichicon	URY	330 µF	50 V	±20%	2000 Hrs	Obsolete	0.197" (5.00mm)	0.492" (12.50mm)	0.551" (14.00mm)	450 mA
UVY1H331MHD4	Nichicon	UVY	330 µF	50 V	±20%	2000 Hrs	Active	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA
URZ1H331MHD	Nichicon	URZ	330 µF	50 V	±20%	1000 Hrs	Active	0.197" (5.00mm)	0.492" (12.50mm)	0.551" (14.00mm)	370 mA
UVY1H331MPD	Nichicon	UVY	330 µF	50 V	±20%	2000 Hrs	Not For New Designs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA
UVZ1H331MPD	Nichicon	UVZ	330 µF	50 V	±20%	2000 Hrs	Not For New Designs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA
UPJ1H331MHD6	Nichicon	UPJ	330 µF	50 V	±20%	5000 Hrs	Not For New Designs	0.295" (7.50mm)	0.630" (16.00mm)	0.650" (16.50mm)	925 mA
UPJ1H331MPD	Nichicon	UPJ	330 µF	50 V	±20%	5000 Hrs	Not For New Designs	0.197" (5.00mm)	0.394" (10.00mm)	1.299" (33.00mm)	995 mA
UPM1H331MHD6	Nichicon	UPM	330 µF	50 V	±20%	5000 Hrs	Not For New Designs	0.295" (7.50mm)	0.630" (16.00mm)	0.669" (17.00mm)	925 mA
UPW1H331MPD	Nichicon	UPW	330 µF	50 V	±20%	5000 Hrs	Not For New Designs	0.197" (5.00mm)	0.394" (10.00mm)	0.787" (20.00mm)	669.5 mA
ECA-1HHG331	Panasonic Electronic Components	NHG-A	330 µF	50 V	±20%	2000 Hrs	Active	0.197" (5.00mm)	0.394" (10.00mm)	0.669" (17.00mm)	410 mA
EEU-FC1H331	Panasonic Electronic Components	FC	330 µF	50 V	±20%	5000 Hrs	Active	0.197" (5.00mm)	0.492" (12.50mm)	0.787" (20.00mm)	962 mA

Engineering Selection Recommendations

For Direct Replacement with Active Product Status: UVY1H331MHD4 (Nichicon, Active) is the primary recommended substitute. It maintains the 2000-hour lifetime specification, active product status, and identical electrical parameters. Physical dimensions differ slightly; verify PCB layout compatibility before implementation.

For Extended Lifetime Applications: EEU-FC1H331 (Panasonic, Active) provides 5000-hour lifetime with AEC-Q200 automotive qualification. This part is suitable for applications requiring enhanced reliability margins. Physical dimensions are larger; PCB layout verification is required.

For Cost-Optimized Designs: UVZ1H331MPD or UVY1H331MPD (Nichicon) maintain 2000-hour specifications but carry "Not For New Designs" status. These are suitable for legacy system maintenance and repair applications only.

For Automotive Applications: UPM1H331MHD6 (Nichicon, AEC-Q200) or EEU-FC1H331 (Panasonic, AEC-Q200) are qualified for automotive use. Both provide 5000-hour lifetime ratings and automotive-grade reliability.

Avoid for New Designs: URZ1H331MHD (1000-hour lifetime) and all parts marked "Not For New Designs" should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q: Can URZ1H331MHD be used as a substitute for URY1H331MHD? A: URZ1H331MHD is electrically and mechanically compatible but has a reduced lifetime rating of 1000 hours at 105°C compared to the original 2000 hours. Use only if the application can tolerate this reduced operational life specification.

Q: What is the primary difference between UVY1H331MHD4 and UVY1H331MPD? A: Both are UVY series parts with identical electrical specifications and 2000-hour lifetime. UVY1H331MHD4 has active product status, while UVY1H331MPD is marked "Not For New Designs." For new applications, select UVY1H331MHD4.

Q: Are Panasonic ECA-1HHG331 and EEU-FC1H331 interchangeable? A: Both are Panasonic 330 µF, 50 V radial capacitors with identical lead spacing and electrical parameters. ECA-1HHG331 has 2000-hour lifetime; EEU-FC1H331 has 5000-hour lifetime. Physical dimensions differ slightly. Verify PCB layout compatibility and select based on required lifetime specification.

Q: Why do some substitutes have different physical dimensions? A: Radial aluminum electrolytic capacitors with identical electrical ratings can be manufactured in different physical sizes depending on the series design and internal construction. Lead spacing, diameter, and height variations require PCB layout verification before substitution.

Q: Can UPJ1H331MPD replace URY1H331MHD despite different lead spacing? A: UPJ1H331MPD has 0.197" lead spacing matching the original, but its height is 1.299" compared to 0.551" for the URY1H331MHD. Physical clearance verification is mandatory. The part offers 5000-hour lifetime, an improvement over the original 2000 hours.

Q: What does "Not For New Designs" mean? A: This designation indicates the part is available for existing product support and maintenance but should not be selected for new product development. Manufacturers typically apply this status to legacy series being phased out in favor of newer alternatives.

Q: Is RoHS3 compliance maintained across all substitutes? A: All listed substitutes are RoHS3 compliant. Verify REACH status for your specific application; most substitutes are REACH Unaffected, with the exception of UPM1H331MHD6, which is REACH Affected.

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