Equivalent & Substitute Parts for LXY10VB392M12X40LL

Part Overview

The LXY10VB392M12X40LL is a 3900 µF, 10 V aluminum electrolytic capacitor manufactured by Chemi-Con in the LXY series. This radial, through-hole component is rated for 7000 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	3900 µF
Voltage Rating	10 V
Tolerance	±20%
Lifetime @ Temperature	7000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Impedance	22 mOhms

Substitute Part Grouping Explanation

Substitution of the LXY10VB392M12X40LL is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Capacitance: 3900 µF (exact match required)
Voltage Rating: 10 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime: 7000 Hrs @ 105°C (exact match required)
Operating Temperature: -55°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Impedance: 22 mOhms (exact match required)

Mechanical Equivalence Criteria:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Can Diameter: 0.492" (12.50 mm) (exact match required)

Two substitute parts meet these criteria with allowable variations in physical height and product status.

Parameter Comparison

Parameter	LXY10VB392M12X40LL	ELXY100ELL392MK40S	UPW1A392MHD
Manufacturer	Chemi-Con	Chemi-Con	Nichicon
Series	LXY	LXY	UPW
Capacitance	3900 µF	3900 µF	3900 µF
Voltage Rating	10 V	10 V	10 V
Tolerance	±20%	±20%	±20%
Lifetime @ Temp.	7000 Hrs @ 105°C	7000 Hrs @ 105°C	7000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar
Ripple Current @ 120 Hz	1.7925 A	1.7925 A	2.134 A
Ripple Current @ 100 kHz	2.39 A	2.39 A	2.51 A
Impedance	22 mOhms	22 mOhms	22 mOhms
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Can Diameter	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Height - Seated (Max)	1.575" (40.00 mm)	1.634" (41.50 mm)	1.398" (35.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
Product Status	Obsolete	Active	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	-	AEC-Q200	-

Engineering Selection Recommendations

ELXY100ELL392MK40S (Chemi-Con LXY Series)

This substitute is the primary equivalent for the LXY10VB392M12X40LL. It maintains identical electrical specifications and mechanical form factor with a maximum height variation of 0.059" (1.50 mm). The part is currently in active production status and carries ROHS3 compliance certification. It includes AEC-Q200 automotive qualification, indicating enhanced reliability screening. The packaging is specified as bulk, suitable for production environments. This part is recommended for applications requiring direct form-fit-function replacement with modern compliance standards.

UPW1A392MHD (Nichicon UPW Series)

This substitute provides electrical equivalence with identical capacitance, voltage, tolerance, and lifetime specifications. The component is manufactured by Nichicon and carries ROHS3 compliance. Physical height is reduced to 1.398" (35.50 mm), providing a 0.177" (4.50 mm) reduction compared to the original part. Ripple current ratings are slightly elevated at 2.134 A @ 120 Hz and 2.51 A @ 100 kHz. The product status is classified as "Not For New Designs," indicating this part is suitable for legacy system support and repair applications only. This part is recommended for space-constrained applications where reduced height is beneficial and legacy support is acceptable.

Frequently Asked Questions (FAQ)

Q: Can ELXY100ELL392MK40S be used as a direct replacement for LXY10VB392M12X40LL?

A: Yes. Both parts share identical electrical specifications (3900 µF, 10 V, ±20%, 7000 Hrs @ 105°C) and mechanical form factors (radial, through-hole, 5.00 mm lead spacing, 12.50 mm diameter). The height difference of 1.50 mm maximum is within typical PCB layout tolerances for through-hole components. ELXY100ELL392MK40S is in active production with ROHS3 compliance.

Q: What is the difference between ELXY100ELL392MK40S and UPW1A392MHD?

A: Both parts are electrically equivalent to the original component. The primary differences are: (1) Manufacturer—Chemi-Con versus Nichicon; (2) Physical height—41.50 mm versus 35.50 mm; (3) Ripple current ratings—slightly higher in the UPW1A392MHD; (4) Product status—ELXY100ELL392MK40S is active, UPW1A392MHD is not for new designs. Selection depends on available PCB space and application lifecycle requirements.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The original LXY10VB392M12X40LL is RoHS non-compliant. Both substitute parts (ELXY100ELL392MK40S and UPW1A392MHD) are ROHS3 compliant, meeting current environmental regulations for new production and repair applications.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed across all three parts. Mechanical interchangeability depends on PCB layout constraints. The height variation between UPW1A392MHD (35.50 mm) and ELXY100ELL392MK40S (41.50 mm) is 6.00 mm, which may affect component clearance in confined spaces. Verify available vertical clearance before substitution.

Q: What does "Not For New Designs" mean for UPW1A392MHD?

A: This designation indicates the part is available for existing system support, repair, and legacy applications but should not be selected for new product development. ELXY100ELL392MK40S is the recommended choice for new designs due to its active production status.

Q: Are the ripple current ratings critical for substitution?

A: Ripple current ratings indicate the component's ability to handle AC current superimposed on DC voltage. The original part is rated at 1.7925 A @ 120 Hz and 2.39 A @ 100 kHz. UPW1A392MHD provides higher ratings (2.134 A @ 120 Hz and 2.51 A @ 100 kHz), which is acceptable for direct substitution. Higher ripple current capability does not create compatibility issues in applications designed for the original specifications.

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