EKXG201ELL151MM25S Equivalent & Substitute Parts

Part Overview

The EKXG201ELL151MM25S is a 150 µF, 200 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KXG series. This radial, through-hole component is rated for 10,000 hours at 105°C and is designed for general-purpose applications requiring stable capacitance and ripple current handling. The part is currently active in production with full RoHS3 compliance.

Substitute parts are identified when equivalent electrical and mechanical specifications allow direct replacement in circuit applications, ensuring functional continuity while potentially offering improved availability or enhanced performance margins.

Key Parameters

Parameter	Value	Unit
Capacitance	150	µF
Voltage - Rated	200	V
Tolerance	±20	%
Lifetime @ Temperature	10,000 Hrs @ 105°C	—
Operating Temperature Range	-40°C to 105°C	—
Lead Spacing	7.50	mm
Diameter	18.00	mm
Height - Seated (Max)	26.50	mm
Mounting Type	Through Hole	—
Package / Case	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the EKXG201ELL151MM25S is determined by the following critical parameters:

Electrical Compatibility:

Capacitance value must equal 150 µF
Tolerance must be ±20% or tighter
Rated voltage must be equal to or greater than 200 V
Lifetime rating must meet or exceed 10,000 hours at 105°C
Operating temperature range must encompass -40°C to 105°C

Mechanical Compatibility:

Lead spacing must equal 7.50 mm
Diameter must equal 18.00 mm
Height must not exceed 26.50 mm
Mounting type must be through-hole
Package must be radial, can configuration

Compliance Requirements:

RoHS3 compliance required
REACH unaffected status required

The substitute part UCS2E151MHD (Nichicon, UCS series) meets all electrical and mechanical compatibility criteria, with the additional benefit of a higher rated voltage (250 V versus 200 V), providing enhanced voltage margin in the application circuit.

Parameter Comparison

Parameter	EKXG201ELL151MM25S (Chemi-Con)	UCS2E151MHD (Nichicon)	Compatibility
Capacitance	150 µF	150 µF	Match
Tolerance	±20%	±20%	Match
Voltage - Rated	200 V	250 V	Substitute rated higher
Lifetime @ Temperature	10,000 Hrs @ 105°C	10,000 Hrs @ 105°C	Match
Operating Temperature	-40°C to 105°C	-40°C to 105°C	Match
Ripple Current @ 120 Hz	840 mA	970 mA	Substitute rated higher
Ripple Current @ 100 kHz	1.89 A	1.94 A	Substitute rated higher
Lead Spacing	7.50 mm	7.50 mm	Match
Diameter	18.00 mm	18.00 mm	Match
Height - Seated (Max)	26.50 mm	26.50 mm	Match
Mounting Type	Through Hole	Through Hole	Match
Package / Case	Radial, Can	Radial, Can	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
REACH Status	REACH Unaffected	REACH Unaffected	Match

Engineering Selection Recommendations

Primary Part: EKXG201ELL151MM25S

The EKXG201ELL151MM25S remains the specified component when original manufacturer continuity and exact voltage rating are required. This Chemi-Con KXG series capacitor is active in production with full RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance and long-term supply stability.

Substitute Part: UCS2E151MHD

The UCS2E151MHD (Nichicon UCS series) is a direct functional equivalent with identical capacitance, tolerance, temperature rating, and mechanical footprint. The substitute provides a 250 V rated voltage compared to the primary part's 200 V rating, along with marginally higher ripple current specifications at both low and high frequencies. Both parts maintain RoHS3 compliance and REACH unaffected status.

Selection between these parts should be based on:

Manufacturer preference or supply chain requirements
Availability and lead time considerations
Voltage margin requirements in the application circuit
Inventory management and cost factors

Both parts are suitable for direct PCB mounting without modification to the circuit layout or footprint.

Frequently Asked Questions (FAQ)

Q: Can UCS2E151MHD replace EKXG201ELL151MM25S in all applications?

A: Yes. The UCS2E151MHD meets all electrical and mechanical compatibility requirements. The 250 V rating of the substitute exceeds the 200 V requirement of the primary part, providing additional voltage margin. Mechanical dimensions, lead spacing, and mounting type are identical.

Q: What is the significance of the higher voltage rating on the substitute part?

A: The UCS2E151MHD's 250 V rating provides a 50 V margin above the primary part's 200 V specification. This does not affect functionality in circuits designed for 200 V operation; it only increases the component's voltage withstand capability.

Q: Are the ripple current differences between these parts significant?

A: The ripple current ratings of the substitute part are marginally higher (970 mA versus 840 mA at 120 Hz; 1.94 A versus 1.89 A at 100 kHz). These differences are within normal manufacturing variation ranges and do not affect substitution eligibility.

Q: Do both parts have identical physical dimensions?

A: Yes. Both parts have identical lead spacing (7.50 mm), diameter (18.00 mm), and maximum seated height (26.50 mm). No PCB layout modifications are required when substituting between these parts.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are RoHS3 compliant and REACH unaffected. They meet identical regulatory requirements for electronic component use.

Q: What is the tolerance specification, and does it affect substitution?

A: Both parts have ±20% capacitance tolerance. This tolerance is identical and does not create compatibility issues during substitution.

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

A: Yes, provided that the circuit design accommodates the 250 V rating of the substitute. The identical mechanical footprint and electrical specifications allow direct substitution without circuit modification.

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