UKL1H331MHD1TO Equivalent & Substitute Parts

Part Overview

The UKL1H331MHD1TO is a 330 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is classified as Not For New Designs. Due to its obsolescence status and limited thermal performance, equivalent and substitute parts with improved reliability, extended operating temperature ranges, or higher voltage ratings are available from multiple manufacturers including Nichicon, Würth Elektronik, and Panasonic Electronic Components.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Size / Dimension	0.492" Dia (12.50 mm)
Height - Seated (Max)	0.866" (22.00 mm)
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Capacitance: 330 µF (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)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Physical Dimensions: Compatible with 0.492" Dia (12.50 mm) and 0.866" (22.00 mm) height specifications

Voltage Rating Substitution Logic:

Direct substitutes: 50 V rated (same voltage class)
Upgrade substitutes: 63 V rated (higher voltage provides additional safety margin while maintaining mechanical compatibility)

Thermal Performance Considerations: Substitute parts are grouped by lifetime rating and operating temperature range. Parts with extended lifetime ratings (3000 Hrs, 5000 Hrs, 7000 Hrs, or 10000 Hrs) and wider operating temperature ranges (-55°C to 135°C) represent performance upgrades suitable for demanding applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Size Dia	Height Max	Product Status	RoHS Status
UKL1H331MHD1TO	Nichicon	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
UBW1H331MHD1TO	Nichicon	330 µF	50 V	±20%	3000 Hrs @ 135°C	-55°C ~ 135°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant
UPS1J331MHD1TO	Nichicon	330 µF	63 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
UPW1J331MHD1TO	Nichicon	330 µF	63 V	±20%	7000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
860020778020	Würth Elektronik	330 µF	63 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
860130678009	Würth Elektronik	330 µF	50 V	±20%	2000 Hrs @ 125°C	-40°C ~ 125°C	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
EEU-TA1H331B	Panasonic Electronic Components	330 µF	50 V	±20%	2000 Hrs @ 125°C	-40°C ~ 125°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant
860160678029	Würth Elektronik	330 µF	50 V	±20%	10000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.512" (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
EEU-EB1J331B	Panasonic Electronic Components	330 µF	63 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant
EEU-FC1H331B	Panasonic Electronic Components	330 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant
EEU-FC1J331B	Panasonic Electronic Components	330 µF	63 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.492" (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Same Footprint):

UBW1H331MHD1TO (Nichicon) is the primary direct replacement. It maintains the 50 V voltage rating and identical physical dimensions while offering Active product status, extended thermal performance (3000 Hrs @ 135°C), and an expanded operating temperature range (-55°C ~ 135°C). This part is suitable for automotive applications.

EEU-TA1H331B (Panasonic Electronic Components) provides an alternative direct replacement with Active status, identical physical dimensions, and improved thermal performance (2000 Hrs @ 125°C) with an extended operating temperature range (-40°C ~ 125°C).

For Voltage Upgrade (63 V Rating):

UPW1J331MHD1TO (Nichicon) offers a 63 V upgrade with extended lifetime (7000 Hrs @ 105°C) and wider operating temperature range (-55°C ~ 105°C). Physical dimensions remain identical to the original part.

EEU-EB1J331B (Panasonic Electronic Components) provides a 63 V upgrade with the highest lifetime rating (10000 Hrs @ 105°C) and Active product status. Physical dimensions match the original specification.

EEU-FC1J331B (Panasonic Electronic Components) offers a 63 V upgrade with 5000 Hrs @ 105°C lifetime, Active status, and AEC-Q200 automotive qualification.

For Extended Thermal Performance (50 V Rating):

EEU-FC1H331B (Panasonic Electronic Components) maintains the 50 V rating with 5000 Hrs @ 105°C lifetime, Active status, and AEC-Q200 automotive qualification.

860160678029 (Würth Elektronik, WCAP-ATLL series) provides the highest lifetime rating at 10000 Hrs @ 105°C with Active status. Note: Physical dimensions differ slightly (0.512" Dia vs. 0.492" Dia; 0.846" Height vs. 0.866" Height). PCB layout verification is required.

For Mechanical Compatibility Considerations:

Parts with identical physical dimensions (0.492" Dia, 0.866" Height) to the original UKL1H331MHD1TO include: UBW1H331MHD1TO, UPS1J331MHD1TO, UPW1J331MHD1TO, EEU-TA1H331B, EEU-EB1J331B, EEU-FC1H331B, and EEU-FC1J331B.

Parts with slightly larger dimensions (0.512" Dia, 0.846" Height) include: 860020778020, 860130678009, and 860160678029. These require PCB layout verification for clearance compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor in place of a 50 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The 63 V parts (UPS1J331MHD1TO, UPW1J331MHD1TO, EEU-EB1J331B, EEU-FC1J331B) are direct functional upgrades for 50 V applications. Physical dimensions must still match PCB layout requirements.

Q: What is the significance of the lifetime rating (2000 Hrs, 5000 Hrs, 7000 Hrs, 10000 Hrs)?

A: Lifetime rating indicates the expected operational duration at the specified temperature before capacitance degradation reaches 80% of the initial value. Higher lifetime ratings indicate superior reliability and longer service life. Parts with 5000 Hrs or greater are recommended for applications requiring extended operational life or higher reliability margins.

Q: Are there physical dimension differences between substitute parts?

A: Yes. Most substitutes maintain the original 0.492" diameter and 0.866" height. However, Würth Elektronik parts (860020778020, 860130678009, 860160678029) have slightly larger dimensions (0.512" Dia, 0.846" Height). Verify PCB layout clearance before selection.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the part is obsolete or being phased out by the manufacturer. New designs should use Active status parts. For legacy system repairs, Not For New Designs parts remain functionally available but should be replaced with Active alternatives when possible.

Q: Which substitute offers the best thermal performance?

A: EEU-EB1J331B (Panasonic) and 860160678029 (Würth Elektronik) both offer 10000 Hrs @ 105°C lifetime ratings, the highest available. EEU-EB1J331B maintains original dimensions; 860160678029 requires dimension verification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant, matching the original UKL1H331MHD1TO specification.

Q: What packaging options are available?

A: The original part and most substitutes are supplied in Cut Tape (CT) packaging. EEU-EB1J331B is supplied in Tape & Box (TB) packaging. Verify packaging requirements for automated assembly processes.

Q: Which substitutes have automotive qualification?

A: EEU-FC1H331B and EEU-FC1J331B (Panasonic FC series) carry AEC-Q200 automotive qualification. UBW1H331MHD1TO is rated for automotive applications. These parts are suitable for automotive-grade reliability requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message