EKYA350ELL331MJC5S Equivalent & Substitute Parts

Part Overview

The EKYA350ELL331MJC5S is a 330 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KYA 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 active and in stock with 823 units available.

Substitute parts are necessary when the original component becomes unavailable, when design requirements change to accommodate higher voltage ratings or extended operational lifetimes, or when alternative manufacturers' components offer improved electrical performance characteristics within the same physical footprint and capacitance specification.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 105°C
Lifetime @ 105°C	7000 Hrs
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the EKYA350ELL331MJC5S is determined by the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Case Diameter: 0.630" (16.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Polarization: Polar (exact match required)
Operating Temperature Range: -40°C ~ 105°C (exact match required)

Allowable Variation Parameters:

Voltage Rating: May be equal to or greater than 35 V
Lifetime @ 105°C: May be equal to or greater than 7000 hours
Impedance: May vary based on manufacturer design
Ripple Current: May vary based on manufacturer design
Height (Seated): Minor variations acceptable within physical constraints

All three substitute parts meet these criteria with voltage ratings of 100 V (exceeding the 35 V requirement) and lifetimes of 10000 hours (exceeding the 7000-hour requirement).

Parameter Comparison

Parameter	EKYA350ELL331MJC5S	EKY-101ELL331ML25S	EKYB101ELL331ML25S	100YXJ330M16X25
Manufacturer	Chemi-Con	Chemi-Con	Chemi-Con	Rubycon
Series	KYA	KY	KYB	YXJ
Capacitance	330 µF	330 µF	330 µF	330 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage Rating	35 V	100 V	100 V	100 V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lifetime @ 105°C	7000 Hrs	10000 Hrs	10000 Hrs	10000 Hrs
Lead Spacing	0.295" (7.50 mm)	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)	0.630" (16.00 mm)
Height (Seated Max)	1.063" (27.00 mm)	1.043" (26.50 mm)	1.043" (26.50 mm)	1.063" (27.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Impedance	80 mOhms	38 mOhms	28 mOhms	44 mOhms
Ripple Current @ 120 Hz	432.5 mA	850 mA	1.125 A	1.547 A
Ripple Current @ 100 kHz	865 mA	1.7 A	2.25 A	2.21 A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts are active products with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

EKY-101ELL331ML25S (Chemi-Con KY Series): This substitute provides a 100 V voltage rating with 10000-hour lifetime at 105°C. The impedance of 38 mOhms is lower than the original part, resulting in improved ripple current handling. This part maintains the same manufacturer as the original component and is suitable for applications requiring higher voltage margin or extended operational life.

EKYB101ELL331ML25S (Chemi-Con KYB Series): This substitute offers the lowest impedance at 28 mOhms among all options, with the highest ripple current ratings at both 120 Hz (1.125 A) and 100 kHz (2.25 A). The 100 V voltage rating and 10000-hour lifetime provide enhanced performance margins. This part is appropriate for applications with demanding ripple current requirements.

100YXJ330M16X25 (Rubycon YXJ Series): This substitute represents an alternative manufacturer option with 100 V voltage rating and 10000-hour lifetime. The impedance of 44 mOhms and ripple current ratings of 1.547 A @ 120 Hz and 2.21 A @ 100 kHz provide performance between the two Chemi-Con KY series options. This part is suitable when multi-source component strategies are required.

All substitute parts maintain identical physical dimensions for lead spacing and case diameter, ensuring direct board-level compatibility. Height variations are minimal and do not affect mounting or clearance in standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the EKYA350ELL331MJC5S be directly replaced with a 100 V rated substitute?

A: Yes. The substitute parts rated at 100 V are directly compatible with the original 35 V application. The higher voltage rating provides additional safety margin and does not negatively affect circuit operation. All substitute parts maintain identical capacitance (330 µF), tolerance (±20%), lead spacing (0.295"), case diameter (0.630"), and mounting configuration (through-hole radial).

Q: What is the difference between the Chemi-Con KY and KYB series substitutes?

A: Both the EKY-101ELL331ML25S (KY series) and EKYB101ELL331ML25S (KYB series) share identical electrical ratings of 330 µF, 100 V, and 10000-hour lifetime. The primary difference is impedance: the KYB series has lower impedance (28 mOhms versus 38 mOhms), resulting in higher ripple current capacity. The KYB series is preferred for applications with higher ripple current demands.

Q: Is the Rubycon 100YXJ330M16X25 compatible with the original Chemi-Con part?

A: Yes. The Rubycon part meets all mandatory matching parameters: 330 µF capacitance, ±20% tolerance, 0.295" lead spacing, 0.630" case diameter, through-hole radial mounting, and -40°C to 105°C operating range. The 100 V rating and 10000-hour lifetime exceed the original specifications. This part is suitable for multi-source procurement strategies.

Q: Will substituting with a higher voltage-rated capacitor affect circuit performance?

A: No. Using a capacitor with a higher voltage rating than required does not degrade circuit performance. The capacitance value, tolerance, and frequency response remain the same. The higher voltage rating only provides additional electrical safety margin and does not introduce any negative effects in the application.

Q: Are all substitute parts physically interchangeable on the PCB?

A: Yes. All substitute parts have identical lead spacing (0.295" / 7.50 mm) and case diameter (0.630" / 16.00 mm). Height variations are minimal: the original and Rubycon part are 1.063" (27.00 mm), while the Chemi-Con KY and KYB series are 1.043" (26.50 mm). These minor height differences do not affect mounting or clearance in standard through-hole applications.

Q: Which substitute part offers the best ripple current performance?

A: The EKYB101ELL331ML25S (Chemi-Con KYB series) provides the highest ripple current ratings at 1.125 A @ 120 Hz and 2.25 A @ 100 kHz, with the lowest impedance of 28 mOhms. This part is recommended for applications with demanding ripple current requirements or high-frequency switching environments.

Q: Are all parts compliant with current environmental regulations?

A: Yes. All parts, including the original EKYA350ELL331MJC5S and all three substitutes, are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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