URY1H331MHD1TO Equivalent & Substitute Parts

Part Overview

The URY1H331MHD1TO is a 330 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

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
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00mm)
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the URY1H331MHD1TO is determined by the following critical parameters:

Capacitance Value: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Mounting Configuration: Through-hole radial package with 0.197" (5.00mm) lead spacing
Thermal Rating: 2000 Hrs @ 105°C minimum
Operating Temperature Range: -55°C ~ 105°C
Compliance: ROHS3 compliant

The EEU-HD1H331B from Panasonic Electronic Components meets all substitution criteria. Both components share identical electrical specifications, lead spacing, and compliance certifications. The substitute maintains the same capacitance, voltage rating, tolerance, and thermal characteristics required for direct replacement in through-hole applications.

Parameter Comparison

Parameter	URY1H331MHD1TO (Nichicon)	EEU-HD1H331B (Panasonic)
Capacitance	330 µF	330 µF
Voltage Rating	50 V	50 V
Tolerance	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)
Mounting Type	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can
Polarization	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The EEU-HD1H331B is a direct functional equivalent for the URY1H331MHD1TO. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity. The EEU-HD1H331B maintains identical electrical performance specifications and physical compatibility through matching lead spacing and radial package configuration.

Frequently Asked Questions (FAQ)

Q: Can the EEU-HD1H331B replace the URY1H331MHD1TO in existing designs?

A: Yes. Both components share identical capacitance (330 µF), voltage rating (50 V), tolerance (±20%), thermal rating (2000 Hrs @ 105°C), operating temperature range (-55°C ~ 105°C), and lead spacing (5.00mm). The radial through-hole package configuration is identical, enabling direct PCB footprint compatibility.

Q: What are the physical differences between these parts?

A: The EEU-HD1H331B has a smaller diameter (0.394" vs 0.492") but greater height (0.689" vs 0.551"). These dimensional differences do not affect electrical performance or lead spacing. PCB layout verification is necessary to confirm clearance in space-constrained applications.

Q: Are both parts compliant with current regulations?

A: Yes. Both the URY1H331MHD1TO and EEU-HD1H331B are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Why is the original part obsolete?

A: The URY1H331MHD1TO from Nichicon's URY series has been discontinued. The EEU-HD1H331B from Panasonic's active HD series provides equivalent functionality with ongoing manufacturing support.

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