Equivalent & Substitute Parts for LXY50VB122M16X35LL

Part Overview

The LXY50VB122M16X35LL is a 1200 µF, 50 V aluminum electrolytic capacitor manufactured by Chemi-Con in the LXY series. This radial, through-hole component is rated for 8000 hours at 105°C and is designed for general-purpose applications. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing system support and new procurement requirements.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	8000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)

Substitute Part Grouping Explanation

Substitution eligibility for the LXY50VB122M16X35LL is determined by the following critical parameters:

Electrical Parameters (Non-Negotiable):

Capacitance: 1200 µF
Voltage Rating: 50 V
Tolerance: ±20%
Lifetime: 8000 Hrs @ 105°C
Operating Temperature Range: -55°C ~ 105°C
Polarization: Polar

Mechanical Parameters (Non-Negotiable):

Mounting Type: Through Hole
Package Type: Radial, Can
Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.630" (16.00 mm)

All identified substitute parts meet these core electrical and mechanical requirements. Variations in height, ripple current specifications, impedance, and product status are secondary considerations that do not preclude substitution but may influence selection based on application constraints.

Parameter Comparison

Parameter	LXY50VB122M16X35LL	ELXY500ELL122ML35S	UPW1H122MHD
Manufacturer	Chemi-Con	Chemi-Con	Nichicon
Series	LXY	LXY	UPW
Capacitance	1200 µF	1200 µF	1200 µF
Voltage Rating	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%
Lifetime @ Temp.	8000 Hrs @ 105°C	8000 Hrs @ 105°C	8000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)	0.630" (16.00 mm)	0.630" (16.00 mm)
Height - Seated (Max)	1.378" (35.00 mm)	1.437" (36.50 mm)	1.240" (31.50 mm)
Ripple Current @ 120 Hz	1.392 A	1.392 A	2.295 A
Ripple Current @ 100 kHz	2.32 A	2.32 A	2.7 A
Impedance	27 mOhms	27 mOhms	28 mOhms
Product Status	Obsolete	Active	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ELXY500ELL122ML35S (Chemi-Con LXY Series)

This substitute is the primary equivalent for the LXY50VB122M16X35LL. Both components share identical electrical specifications and mechanical dimensions. ELXY500ELL122ML35S is classified as active product status and is ROHS3 compliant, making it suitable for new designs and ongoing production. The height difference of 0.059" (1.50 mm) is within typical PCB layout tolerances for through-hole radial capacitors. This part is recommended for direct replacement in existing designs and for new applications requiring the LXY series characteristics.

UPW1H122MHD (Nichicon UPW Series)

This substitute provides electrical equivalence with identical capacitance, voltage, tolerance, and thermal specifications. The UPW1H122MHD is ROHS3 compliant and offers superior ripple current performance (2.295 A @ 120 Hz and 2.7 A @ 100 kHz compared to 1.392 A and 2.32 A respectively). The component is 0.138" (3.50 mm) shorter than the main part, which may provide advantages in space-constrained applications. However, the product status is classified as "Not For New Designs," limiting its use to legacy system support and maintenance applications. Selection of this part requires engineering justification based on specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can ELXY500ELL122ML35S be used as a direct replacement for LXY50VB122M16X35LL?

A: Yes. Both components have identical electrical specifications (1200 µF, 50 V, ±20%, 8000 Hrs @ 105°C) and mechanical dimensions (0.295" lead spacing, 0.630" diameter, through-hole radial package). The height difference of 0.059" is within standard PCB layout tolerances for radial capacitors.

Q: What is the primary advantage of ELXY500ELL122ML35S over the original part?

A: ELXY500ELL122ML35S is active product status and ROHS3 compliant, whereas LXY50VB122M16X35LL is obsolete and RoHS non-compliant. This makes ELXY500ELL122ML35S suitable for new designs and ensures long-term availability.

Q: Can UPW1H122MHD be used in new designs?

A: No. UPW1H122MHD is classified as "Not For New Designs." This part is suitable only for legacy system support, maintenance, and repair applications where the original component is no longer available.

Q: Are there any physical installation differences between these three parts?

A: All three components use identical lead spacing (0.295") and case diameter (0.630"), ensuring PCB footprint compatibility. Height variations range from 1.240" to 1.437", which may affect clearance in space-constrained applications but do not prevent installation in standard through-hole designs.

Q: What is the significance of the ripple current differences?

A: UPW1H122MHD exhibits higher ripple current capability (2.295 A @ 120 Hz, 2.7 A @ 100 kHz) compared to LXY50VB122M16X35LL and ELXY500ELL122ML35S (1.392 A @ 120 Hz, 2.32 A @ 100 kHz). This indicates superior performance in high-ripple-current applications but does not affect substitution eligibility for applications within the original part's ripple current specifications.

Q: Are all three parts RoHS compliant?

A: No. LXY50VB122M16X35LL is RoHS non-compliant. ELXY500ELL122ML35S and UPW1H122MHD are both ROHS3 compliant. For applications requiring RoHS compliance, ELXY500ELL122ML35S is the recommended choice.

Q: What is the difference between "Obsolete" and "Not For New Designs" product status?

A: Obsolete parts are no longer manufactured and may have limited inventory. "Not For New Designs" parts are still manufactured but are being phased out; they are suitable for legacy system support but should not be specified for new product development.

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