LPX122M160E7P3 Equivalent & Substitute Parts Reference

Part Overview

The LPX122M160E7P3 is a 1200 µF, 160 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active and is designed for general-purpose applications requiring through-hole mounting. The part is ROHS3 compliant and REACH unaffected, meeting current environmental standards.

Substitute parts become necessary when the original LPX122M160E7P3 experiences extended lead times, inventory constraints, or when design requirements permit operation at higher voltage ratings or improved thermal performance specifications.

Key Parameters

Parameter	Value	Unit
Capacitance	1200	µF
Voltage - Rated	160	V
Tolerance	±20%	-
ESR @ 120Hz	166	mOhm
Lifetime @ Temperature	1000	Hrs @ 85°C
Operating Temperature Range	-40 to 85	°C
Ripple Current @ 120 Hz	2.9	A
Lead Spacing	10.00	mm
Diameter	30.00	mm
Height - Seated (Max)	40.00	mm
Package / Case	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the LPX122M160E7P3 is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

Capacitance: 1200 µF
Tolerance: ±20%
Package / Case: Radial, Can - Snap-In
Lead Spacing: 10.00 mm (0.394")
Physical Dimensions: 30.00 mm diameter, 40.00 mm height (seated max)
Mounting Type: Through Hole
Polarization: Polar

Allowable Variation Parameters:

Voltage - Rated: Substitute parts may operate at equal or higher voltage ratings (160 V or greater)
Operating Temperature Range: Substitute parts may extend the upper temperature limit beyond 85°C
Lifetime @ Temperature: Substitute parts may exceed 1000 Hrs @ 85°C
Ripple Current: Substitute parts may equal or exceed the specified ripple current values
ESR: Substitute parts may have different ESR values if not specified in original

The two substitute parts listed (LGU2D122MELB and LGW2D122MELB40) both maintain identical capacitance, tolerance, physical dimensions, lead spacing, and package configuration. Both substitute parts operate at 200 V rated voltage, providing voltage margin above the original 160 V specification. Both are manufactured by Nichicon and maintain ROHS3 compliance.

Parameter Comparison

Parameter	LPX122M160E7P3 (CDE)	LGU2D122MELB (Nichicon)	LGW2D122MELB40 (Nichicon)
Capacitance	1200 µF	1200 µF	1200 µF
Tolerance	±20%	±20%	±20%
Voltage - Rated	160 V	200 V	200 V
Operating Temperature Range	-40 to 85°C	-40 to 105°C	-40 to 105°C
Lifetime @ Temperature	1000 Hrs @ 85°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C
Ripple Current @ 120 Hz	2.9 A	2.65 A	4.2 A
Ripple Current @ 50 kHz	Not specified	3.975 A	6.3 A
Lead Spacing	10.00 mm	10.00 mm	10.00 mm
Diameter	30.00 mm	30.00 mm	30.00 mm
Height - Seated (Max)	40.00 mm	40.00 mm	40.00 mm
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both substitute parts satisfy the electrical and mechanical requirements for direct replacement of the LPX122M160E7P3 based on the following engineering criteria:

Voltage Rating Compatibility: The LGU2D122MELB and LGW2D122MELB40 are rated at 200 V, which exceeds the original 160 V specification. This provides additional voltage margin and permits operation in circuits designed for the original part without derating.

Physical Compatibility: Both substitute parts maintain identical physical dimensions (30.00 mm diameter, 40.00 mm seated height) and lead spacing (10.00 mm), ensuring direct mechanical compatibility with existing PCB layouts and snap-in mounting hardware.

Thermal Performance: Both Nichicon substitutes extend the operating temperature range to -40 to 105°C and provide 3000 Hrs @ 105°C lifetime rating, compared to the original 1000 Hrs @ 85°C. This represents improved thermal stability and extended operational life in elevated temperature environments.

Regulatory Compliance: Both substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental certifications of the original LPX122M160E7P3.

Ripple Current Characteristics: The LGW2D122MELB40 provides superior ripple current handling at both low frequency (4.2 A @ 120 Hz) and high frequency (6.3 A @ 50 kHz) compared to the original specification (2.9 A @ 120 Hz). The LGU2D122MELB provides 2.65 A @ 120 Hz, which is within acceptable tolerance of the original specification.

Selection between the two Nichicon substitutes depends on ripple current requirements: LGW2D122MELB40 for applications requiring higher ripple current capacity; LGU2D122MELB for applications with ripple current requirements at or below the original specification.

Frequently Asked Questions (FAQ)

Q: Can LGU2D122MELB or LGW2D122MELB40 be used as direct replacements for LPX122M160E7P3?

A: Yes. Both Nichicon parts maintain identical capacitance (1200 µF), tolerance (±20%), physical dimensions, lead spacing, and package configuration. The higher voltage rating (200 V vs. 160 V) and extended temperature range provide additional design margin without requiring circuit modification.

Q: What is the difference between LGU2D122MELB and LGW2D122MELB40?

A: Both parts share identical electrical specifications (1200 µF, 200 V, ±20% tolerance) and physical dimensions. The primary difference is ripple current capacity: LGW2D122MELB40 provides 4.2 A @ 120 Hz and 6.3 A @ 50 kHz, while LGU2D122MELB provides 2.65 A @ 120 Hz and 3.975 A @ 50 kHz. Select LGW2D122MELB40 for applications with higher ripple current demands.

Q: Are the substitute parts compatible with existing PCB layouts designed for LPX122M160E7P3?

A: Yes. Both substitute parts have identical lead spacing (10.00 mm) and physical dimensions (30.00 mm diameter, 40.00 mm height seated max), ensuring direct compatibility with existing through-hole PCB footprints and snap-in mounting hardware.

Q: Do the substitute parts meet the same environmental and regulatory standards?

A: Yes. Both LGU2D122MELB and LGW2D122MELB40 are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original LPX122M160E7P3.

Q: What is the advantage of the higher voltage rating on the substitute parts?

A: The 200 V rating on both Nichicon substitutes provides voltage margin above the original 160 V specification. This allows operation in circuits designed for the original part without derating and provides additional safety margin in applications subject to voltage transients or overvoltage conditions.

Q: Can the substitute parts operate at the same temperature range as the original?

A: The substitute parts extend the operating temperature range to -40 to 105°C, compared to the original -40 to 85°C. This permits operation in higher temperature environments. The substitute parts are fully compatible with applications limited to the original -40 to 85°C range.

Q: What does the ±20% tolerance mean for capacitance?

A: The ±20% tolerance applies to all three parts (original and both substitutes). This means the actual capacitance value will be within 20% of the nominal 1200 µF specification, resulting in a range of 960 µF to 1440 µF. This tolerance is identical across all three parts.

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