Equivalent & Substitute Parts for LXZ50VB331M10X25LL

Part Overview

The LXZ50VB331M10X25LL is a 330 µF, 50 V aluminum electrolytic capacitor manufactured by Chemi-Con in the LXZ series. This radial, through-hole component is rated for 5000 hours at 105°C and is designed for general purpose applications. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for existing designs and production requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the LXZ50VB331M10X25LL is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 50 V
Tolerance: ±20%
Lead Spacing: 0.197" (5.00 mm)
Case Diameter: 0.394" (10.00 mm)
Mounting Type: Through Hole
Package Type: Radial, Can
Polarization: Polar

Acceptable Variation Parameters:

Height (seated): Variation permitted within PCB layout constraints
Ripple Current: Variation acceptable if rated values meet or exceed application requirements
Impedance: Variation acceptable within electrical performance requirements
Lifetime @ Temperature: Variation acceptable if rated value meets or exceeds application requirements

Substitute parts are grouped into two categories: direct equivalents from the same manufacturer (Chemi-Con) and cross-manufacturer alternatives (Nichicon) that satisfy all critical parameters.

Parameter Comparison

Parameter	LXZ50VB331M10X25LL	ELXZ500ELL331MJ25S	ELXY500ELL331MJ30S	UPW1H331MPD
Manufacturer	Chemi-Con	Chemi-Con	Chemi-Con	Nichicon
Series	LXZ	LXZ	LXY	UPW
Product Status	Obsolete	Active	Active	Not For New Designs
Capacitance	330 µF	330 µF	330 µF	330 µF
Voltage Rating	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ Temp.	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°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)
Case Diameter	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Height - Seated (Max)	0.984" (25.00 mm)	1.043" (26.50 mm)	1.240" (31.50 mm)	0.787" (20.00 mm)
Ripple Current @ 120 Hz	625 mA	625 mA	630 mA	669.5 mA
Ripple Current @ 100 kHz	1.25 A	1.25 A	1.26 A	1.03 A
Impedance	73 mOhms	73 mOhms	54 mOhms	90 mOhms
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	—	AEC-Q200	AEC-Q200	—
Applications	General Purpose	Automotive	Automotive	General Purpose

Engineering Selection Recommendations

ELXZ500ELL331MJ25S (Chemi-Con LXZ Series)

This part is the primary direct equivalent. It maintains identical electrical specifications and lead spacing as the original LXZ50VB331M10X25LL. The height increase of 1.043" (26.50 mm) versus 0.984" (25.00 mm) requires PCB layout verification. This part is active in production, ROHS3 compliant, and carries AEC-Q200 automotive qualification. It is suitable for new designs and production replacement.

ELXY500ELL331MJ30S (Chemi-Con LXY Series)

This part satisfies all critical electrical and mechanical parameters. The increased height of 1.240" (31.50 mm) requires PCB clearance verification. The impedance is lower at 54 mOhms, which may provide improved high-frequency performance. This part is active in production, ROHS3 compliant, and carries AEC-Q200 automotive qualification. It is suitable for applications where increased height does not present a constraint.

UPW1H331MPD (Nichicon UPW Series)

This cross-manufacturer alternative meets all critical electrical and mechanical parameters. The reduced height of 0.787" (20.00 mm) provides a compact profile suitable for space-constrained applications. This part is ROHS3 compliant but carries a "Not For New Designs" status. It is suitable for legacy system maintenance and replacement in existing production where design changes are not feasible.

Frequently Asked Questions (FAQ)

Q: Can the LXZ50VB331M10X25LL be directly replaced with ELXZ500ELL331MJ25S?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (50 V), tolerance (±20%), lead spacing (0.197" / 5.00 mm), case diameter (0.394" / 10.00 mm), and electrical specifications. The height difference of 1.043" (26.50 mm) versus 0.984" (25.00 mm) requires verification that PCB layout accommodates the additional 0.059" (1.50 mm).

Q: What is the significance of the height variation among substitute parts?

A: Height variation affects PCB layout and component clearance. The original part measures 0.984" (25.00 mm). ELXZ500ELL331MJ25S measures 1.043" (26.50 mm), ELXY500ELL331MJ30S measures 1.240" (31.50 mm), and UPW1H331MPD measures 0.787" (20.00 mm). PCB design must accommodate the selected substitute's height to prevent interference with adjacent components or enclosure constraints.

Q: Are all substitute parts RoHS compliant?

A: The original LXZ50VB331M10X25LL is RoHS non-compliant. All three substitute parts (ELXZ500ELL331MJ25S, ELXY500ELL331MJ30S, and UPW1H331MPD) are ROHS3 compliant, meeting current environmental regulations.

Q: What is the difference between AEC-Q200 rated and non-rated parts?

A: AEC-Q200 is an automotive qualification standard. ELXZ500ELL331MJ25S and ELXY500ELL331MJ30S carry AEC-Q200 qualification, indicating suitability for automotive applications. UPW1H331MPD and the original LXZ50VB331M10X25LL do not carry this rating and are designated for general purpose applications.

Q: Can UPW1H331MPD be used in new designs?

A: UPW1H331MPD carries a "Not For New Designs" status. It is suitable for replacement in existing production and legacy systems but should not be selected for new design implementations. ELXZ500ELL331MJ25S or ELXY500ELL331MJ30S are recommended for new designs.

Q: What is the impact of impedance variation on circuit performance?

A: Impedance values are 73 mOhms (LXZ50VB331M10X25LL and ELXZ500ELL331MJ25S), 54 mOhms (ELXY500ELL331MJ30S), and 90 mOhms (UPW1H331MPD). Lower impedance generally provides improved high-frequency performance and reduced voltage ripple. Selection should be based on application-specific ripple current and frequency requirements.

Q: Are ripple current ratings interchangeable?

A: Ripple current ratings vary slightly among substitutes. The original part is rated 625 mA @ 120 Hz and 1.25 A @ 100 kHz. Substitutes range from 625–669.5 mA @ 120 Hz and 1.03–1.26 A @ 100 kHz. Selection must ensure the substitute's ripple current rating meets or exceeds the application's actual ripple current demand at the operating frequency.

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