EKYB350ELL331MJC5S Equivalent & Substitute Parts Reference

Part Overview

The EKYB350ELL331MJC5S is a 330 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KYB series. This radial, through-hole component is rated for 10,000 hours at 105°C and is designed for general-purpose applications. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter specifications.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage - Rated	35	V
Tolerance	±20%	-
Lifetime @ Temperature	10000 Hrs @ 105°C	-
Operating Temperature Range	-40°C ~ 105°C	-
Lead Spacing	0.197" (5.00 mm)	-
Size / Dimension	0.394" Dia (10.00 mm)	-
Height - Seated (Max)	0.551" (14.00 mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the EKYB350ELL331MJC5S are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 35 V
Tolerance: ±20%
Lifetime: 10,000 Hrs @ 105°C
Operating Temperature: -40°C ~ 105°C
Polarization: Polar

Mechanical Parameters (Must Match):

Lead Spacing: 0.197" (5.00 mm)
Size / Dimension: 0.394" Dia (10.00 mm)
Height - Seated (Max): 0.551" (14.00 mm)
Mounting Type: Through Hole
Package / Case: Radial, Can

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

All four substitute parts meet these criteria. Variations in ripple current ratings, impedance, and series resistance are within acceptable performance ranges for general-purpose applications and do not disqualify substitution eligibility.

Parameter Comparison

Parameter	EKYB350ELL331MJC5S (Chemi-Con KYB)	35YXJ330M10X12.5 (Rubycon YXJ)	35ZLH330MEFC10X12.5 (Rubycon ZLH)	35ZLH330MEFCCC10X12.5 (Rubycon ZLH)	35ZLJ330M10X12.5 (Rubycon ZLJ)
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage - Rated	35 V	35 V	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	10000 Hrs @ 105°C	10000 Hrs @ 105°C	10000 Hrs @ 105°C	10000 Hrs @ 105°C	10000 Hrs @ 105°C
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Dimension	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)
Height - Seated (Max)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ripple Current @ 120 Hz	525 mA	605.5 mA	731.5 mA	731.5 mA	935 mA
Ripple Current @ 100 kHz	1.05 A	865 mA	1.33 A	1.33 A	1.7 A
Impedance	64 mOhms	80 mOhms	39 mOhms	39 mOhms	53 mOhms

Engineering Selection Recommendations

All four substitute parts are qualified equivalents for the EKYB350ELL331MJC5S based on matching electrical specifications, mechanical dimensions, and compliance certifications. Selection among these alternatives is determined by:

Product Status: All parts are Active status, ensuring continued availability and manufacturer support.

Compliance: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original part.

Inventory Availability: Selection may be influenced by stock levels. The 35ZLH330MEFC10X12.5 offers the highest inventory (4,400 pcs), followed by 35YXJ330M10X12.5 (2,519 pcs), 35ZLH330MEFCCC10X12.5 (2,093 pcs), and 35ZLJ330M10X12.5 (885 pcs).

Performance Characteristics: While ripple current ratings and impedance values vary among substitutes, all fall within acceptable ranges for general-purpose aluminum electrolytic capacitor applications. The 35ZLH330MEFC10X12.5 and 35ZLH330MEFCCC10X12.5 offer lower impedance (39 mOhms), while the 35ZLJ330M10X12.5 provides higher ripple current handling at 100 kHz (1.7 A).

Frequently Asked Questions (FAQ)

Q: Can I substitute the EKYB350ELL331MJC5S with any of the listed parts without circuit board modifications?

A: Yes. All substitute parts share identical lead spacing (5.00 mm), case diameter (10.00 mm), and seated height (14.00 mm), ensuring direct mechanical compatibility with existing through-hole PCB layouts designed for the original part.

Q: What is the primary difference between the substitute parts?

A: The substitute parts differ in ripple current ratings and impedance characteristics. The 35ZLH330MEFC10X12.5 and 35ZLH330MEFCCC10X12.5 (ZLH series) provide the lowest impedance at 39 mOhms, while the 35ZLJ330M10X12.5 (ZLJ series) offers the highest ripple current capacity at 100 kHz (1.7 A). The 35YXJ330M10X12.5 (YXJ series) provides intermediate performance. All meet the 10,000-hour lifetime specification at 105°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the original EKYB350ELL331MJC5S.

Q: Does the ±20% capacitance tolerance apply to all parts?

A: Yes. All parts, including the original and all substitutes, carry ±20% capacitance tolerance. This tolerance is consistent across the entire product group.

Q: Which substitute part should I select for high-ripple-current applications?

A: The 35ZLJ330M10X12.5 supports the highest ripple current at 100 kHz (1.7 A) and is suitable for applications requiring elevated AC current handling. The 35ZLH330MEFC10X12.5 and 35ZLH330MEFCCC10X12.5 offer the lowest impedance (39 mOhms), which may benefit applications sensitive to ESR performance.

Q: Can I use these parts interchangeably in production?

A: Yes. All parts meet identical electrical and mechanical specifications for the 330 µF, 35 V, ±20% tolerance, 10,000-hour rated lifetime category. They are mechanically and electrically interchangeable within the constraints of the specified parameters.

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