UFG1H331MHM1TO Equivalent & Substitute Parts

Part Overview

The UFG1H331MHM1TO is a 330 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as obsolete, with 1130 units currently in stock. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C, making it suitable for audio applications requiring stable capacitance performance in standard operating conditions.

Due to its obsolete status, equivalent and substitute parts are necessary for ongoing production support, design updates, and long-term supply chain continuity. Substitute options range from general-purpose alternatives to automotive-grade components with extended operational lifespans and wider temperature ranges.

Key Parameters

Parameter	UFG1H331MHM1TO
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Size / Diameter	0.492" (12.50 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 85°C
Lifetime @ Temperature	1000 Hrs @ 85°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Substitute parts are grouped into two categories based on voltage rating:

Category A: 50 V Rated Substitutes — Direct voltage equivalents maintaining the original 50 V specification. These parts are mechanically and electrically interchangeable with the UFG1H331MHM1TO in applications where 50 V rating is required.

Category B: 63 V Rated Substitutes — Higher voltage rating alternatives. These parts provide voltage headroom above the original specification and are suitable for applications where the circuit design permits higher voltage-rated components without adverse effects.

All substitute parts maintain identical capacitance, tolerance, package geometry, and lead spacing. Differences exist in manufacturer, series designation, lifetime ratings, operating temperature ranges, and ripple current specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Status	Lead Spacing	Size Dia	Height Max
UFG1H331MHM1TO	Nichicon	UFG	330 µF	50 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
UBW1H331MHD1TO	Nichicon	UBW	330 µF	50 V	±20%	3000 Hrs @ 135°C	-55°C ~ 135°C	Active	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
UBX1H331MHL1TO	Nichicon	UBX	330 µF	50 V	±20%	1000 Hrs @ 150°C	-55°C ~ 150°C	Active	0.197" (5.00 mm)	0.492" (12.50 mm)	0.846" (21.50 mm)
UKL1H331MHD1TO	Nichicon	UKL	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
UPS1J331MHD1TO	Nichicon	UPS	330 µF	63 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	Not For New Designs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
UPW1J331MHD1TO	Nichicon	UPW	330 µF	63 V	±20%	7000 Hrs @ 105°C	-55°C ~ 105°C	Not For New Designs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
860020778020	Würth Elektronik	WCAP-ATG5	330 µF	63 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	Active	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)
860130678009	Würth Elektronik	WCAP-ATET	330 µF	50 V	±20%	2000 Hrs @ 125°C	-40°C ~ 125°C	Active	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)
860160678029	Würth Elektronik	WCAP-ATLL	330 µF	50 V	±20%	10000 Hrs @ 105°C	-55°C ~ 105°C	Active	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)
EEU-EB1J331B	Panasonic Electronic Components	EB-A	330 µF	63 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	Active	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)
EEU-FC1H331B	Panasonic Electronic Components	FC	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	Active	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)

Engineering Selection Recommendations

For Active Production (Recommended Primary Choices):

UBW1H331MHD1TO (Nichicon, Active): Automotive-grade 50 V substitute with extended lifetime (3000 Hrs @ 135°C) and expanded operating temperature range (-55°C ~ 135°C). ROHS3 compliant. Suitable for applications requiring enhanced thermal performance and reliability.
860160678029 (Würth Elektronik WCAP-ATLL, Active): 50 V substitute with longest lifetime rating (10000 Hrs @ 105°C) and wide operating range (-55°C ~ 105°C). ROHS3 compliant. Optimal for long-service-life applications.
EEU-FC1H331B (Panasonic FC, Active): 50 V automotive-grade substitute (AEC-Q200 rated) with 5000 Hrs @ 105°C lifetime. ROHS3 compliant. Suitable for automotive applications requiring qualified components.
EEU-EB1J331B (Panasonic EB-A, Active): 63 V substitute with 10000 Hrs @ 105°C lifetime and ROHS3 compliance. Provides voltage headroom for applications permitting higher-rated components.

For Existing Designs (Legacy Support):

UKL1H331MHD1TO (Nichicon, Not For New Designs): 50 V equivalent with 2000 Hrs @ 85°C lifetime. Acceptable for sustaining existing production but not recommended for new designs.
UPS1J331MHD1TO (Nichicon, Not For New Designs): 63 V alternative with 3000 Hrs @ 105°C lifetime. Suitable for legacy applications but not recommended for new designs.
UPW1J331MHD1TO (Nichicon, Not For New Designs): 63 V alternative with extended 7000 Hrs @ 105°C lifetime. Acceptable for legacy applications but not recommended for new designs.

Mechanical Considerations:

Würth Elektronik parts (860020778020, 860130678009, 860160678029) feature slightly larger diameter (0.512" vs. 0.492") and reduced height (0.846" vs. 0.866" for most Nichicon parts). Verify PCB layout clearance before substitution.

Frequently Asked Questions (FAQ)

Q: Can UFG1H331MHM1TO be directly replaced with any of these substitutes?

A: Yes, all listed substitutes maintain identical capacitance (330 µF), tolerance (±20%), package type (Radial, Can), lead spacing (5.00 mm), and mounting type (Through Hole). Direct PCB footprint compatibility is confirmed for all parts except Würth Elektronik variants, which have slightly larger diameter (0.512" vs. 0.492"). Verify clearance for Würth parts.

Q: What is the difference between 50 V and 63 V rated substitutes?

A: The UFG1H331MHM1TO is rated at 50 V. Substitutes rated at 63 V provide higher voltage headroom and are suitable for applications where circuit design permits higher-rated components. However, 50 V substitutes maintain exact voltage specification matching. Select based on application requirements.

Q: Which substitute offers the longest operational lifetime?

A: The 860160678029 (Würth Elektronik WCAP-ATLL) and EEU-EB1J331B (Panasonic EB-A) both offer 10000 Hrs @ 105°C lifetime, the longest among all substitutes listed.

Q: Are all substitutes RoHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 compliant, matching the compliance status of the original UFG1H331MHM1TO.

Q: Which substitutes are recommended for new designs?

A: Parts with Active product status are recommended for new designs: UBW1H331MHD1TO, UBX1H331MHL1TO, 860020778020, 860130678009, 860160678029, EEU-EB1J331B, and EEU-FC1H331B. Parts marked "Not For New Designs" should be used only for sustaining existing production.

Q: Do Würth Elektronik substitutes fit the same PCB footprint?

A: Würth parts have identical lead spacing (5.00 mm) and mounting type (Through Hole), but feature slightly larger diameter (0.512" vs. 0.492") and reduced height (0.846" vs. 0.866"). Verify PCB layout clearance before substitution.

Q: Which substitute is best for automotive applications?

A: UBW1H331MHD1TO (Nichicon, automotive-grade) and EEU-FC1H331B (Panasonic, AEC-Q200 rated) are both automotive-qualified options. UBW1H331MHD1TO offers extended temperature range (-55°C ~ 135°C), while EEU-FC1H331B provides AEC-Q200 qualification.

Q: Can I use a 63 V rated substitute in a circuit designed for 50 V?

A: Yes, 63 V rated substitutes are backward compatible with 50 V applications. The higher voltage rating provides additional safety margin. However, verify that the circuit design does not impose restrictions on component voltage ratings.

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