UPB1H331MPD1TD Equivalent & Substitute Parts

Part Overview

The UPB1H331MPD1TD is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part is rated for general-purpose use with a 7000-hour lifetime at 105°C and operates across the temperature range of -40°C to 105°C.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ 105°C	7000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height (Max)	0.846" (21.50 mm)

Substitute Part Grouping Explanation

Substitute parts for the UPB1H331MPD1TD are qualified based on the following electrical and mechanical 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)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Operating Temperature Range: -40°C to 105°C minimum (equal or wider range acceptable)
Lifetime @ 105°C: 7000 hours minimum (equal or greater acceptable)

All substitute parts listed meet these core electrical and mechanical compatibility criteria. Variations in ripple current ratings, impedance, case diameter, and height are permitted within the constraints of the radial can package format and through-hole mounting configuration.

Parameter Comparison

Parameter	UPB1H331MPD1TD (Nichicon)	50YXF330MEFCT810X20 (Rubycon)	EEU-EB1H331B (Panasonic)	EEU-EB1H331 (Panasonic)	EEU-FS1H331B (Panasonic)	ELXY500ELL331MK20S (Chemi-Con)
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	50 V	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	7000 Hrs	7000 Hrs	10000 Hrs	10000 Hrs	10000 Hrs	7000 Hrs
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.492" (12.50 mm)
Height (Max)	0.846" (21.50 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.846" (21.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Last Time Buy	Active	Active	Active	Active

Engineering Selection Recommendations

For applications currently using the UPB1H331MPD1TD, the following selection criteria apply:

Active Product Status Priority: EEU-EB1H331B, EEU-EB1H331, and EEU-FS1H331B (all Panasonic, Active status) are preferred for new designs and ongoing production. These parts offer extended lifetime ratings of 10000 hours at 105°C compared to the original 7000-hour specification.

RoHS3 Compliance: All substitute parts listed are ROHS3 compliant, meeting current regulatory requirements. The original UPB1H331MPD1TD does not specify RoHS status.

Automotive Applications: ELXY500ELL331MK20S (Chemi-Con) carries AEC-Q200 qualification and operates across an extended temperature range (-55°C to 105°C), making it suitable for automotive environments where the original part may not be qualified.

Last Time Buy Consideration: 50YXF330MEFCT810X20 (Rubycon) is designated Last Time Buy status, indicating limited future availability. This part should be considered only for legacy system maintenance where inventory planning is critical.

Mechanical Fit Verification: ELXY500ELL331MK20S has a larger case diameter (0.492" vs. 0.394") compared to the original part. PCB layout verification is required before substitution to confirm adequate clearance around the component footprint.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the UPB1H331MPD1TD?

A: All listed substitute parts meet the core electrical specifications (330 µF, 50 V, ±20% tolerance) and mechanical requirements (through-hole, radial can, 5.00 mm lead spacing). However, ELXY500ELL331MK20S has a larger case diameter and requires PCB layout verification. Height variations of up to 0.020" (0.50 mm) exist among substitutes and should be confirmed against PCB clearance requirements.

Q: What is the difference between the Panasonic EB and FS series substitutes?

A: Both EEU-EB1H331B and EEU-FS1H331B are Panasonic products with identical electrical ratings (330 µF, 50 V, 10000 Hrs @ 105°C). The FS series exhibits significantly higher ripple current capability (1.89 A @ 100 kHz vs. 0.381 A @ 100 kHz) and lower impedance (23 mOhms vs. unspecified). Selection depends on application ripple current requirements.

Q: Why is the Rubycon 50YXF330MEFCT810X20 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this product line. While currently available in inventory (8425 pcs), future procurement will not be possible. This part should be used only for legacy system support where long-term availability is not required.

Q: Is the Chemi-Con ELXY500ELL331MK20S suitable for my application?

A: ELXY500ELL331MK20S is qualified for automotive use (AEC-Q200) with extended temperature range (-55°C to 105°C). The larger case diameter (12.50 mm vs. 10.00 mm) requires PCB layout verification. This part is appropriate only if your application requires automotive qualification or extended low-temperature operation.

Q: What packaging options are available for these substitutes?

A: Panasonic EEU-EB1H331 is supplied in Bulk packaging. EEU-EB1H331B, EEU-FS1H331B, and 50YXF330MEFCT810X20 are supplied in Cut Tape (CT). Chemi-Con ELXY500ELL331MK20S is supplied in Bulk. Packaging selection affects handling, storage, and assembly process compatibility.

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