KZE100VB331M18X20LL Equivalent & Substitute Parts

Part Overview

The KZE100VB331M18X20LL is a 330 µF, 100 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KZE series. This radial, through-hole component is rated for 5000 hours at 105°C and is designed for general-purpose applications. The part is currently classified as obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Operating Temperature Range	-40°C to 105°C
Ripple Current @ 120 Hz	750 mA
Ripple Current @ 100 kHz	1.5 A
Impedance	45 mOhms

Substitute Part Grouping Explanation

Substitution of the KZE100VB331M18X20LL is determined by strict equivalence in the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Operating Temperature Range: -40°C to 105°C (exact match required)

Mechanical Equivalence Criteria:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Case Diameter: 0.709" (18.00 mm) (exact match required)

Acceptable Variations:

Height: Seated height may vary within PCB assembly constraints
Lifetime @ Temperature: Extended ratings are acceptable
Ripple Current: Specifications meeting or exceeding original values are acceptable
Impedance: Lower impedance values are acceptable
RoHS and REACH Compliance: Improved compliance status is acceptable

Parameter Comparison

Parameter	KZE100VB331M18X20LL	EKZE101ELL331MM20S	UHE2A331MHD6
Manufacturer	Chemi-Con	Chemi-Con	Nichicon
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lifetime @ 105°C	5000 Hrs	5000 Hrs	10000 Hrs
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)
Height - Seated (Max)	0.787" (20.00 mm)	0.846" (21.50 mm)	0.787" (20.00 mm)
Ripple Current @ 120 Hz	750 mA	750 mA	910 mA
Ripple Current @ 100 kHz	1.5 A	1.5 A	1.3 A
Impedance	45 mOhms	45 mOhms	80 mOhms
Product Status	Obsolete	Active	Not For New Designs
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: EKZE101ELL331MM20S

The EKZE101ELL331MM20S is the recommended substitute for the KZE100VB331M18X20LL. Both components are manufactured by Chemi-Con and share identical electrical specifications and mechanical dimensions. The EKZE101ELL331MM20S offers the following advantages:

Active product status with 17,807 units in stock
ROHS3 compliance
Identical capacitance, voltage, tolerance, and operating temperature range
Identical lead spacing and case diameter
Identical ripple current specifications and impedance
Seated height of 0.846" (21.50 mm) accommodates standard PCB layouts

The marginal height increase of 0.059" (1.50 mm) does not impact standard through-hole assembly processes.

Secondary Substitute: UHE2A331MHD6

The UHE2A331MHD6 is a Nichicon alternative that meets all electrical and mechanical equivalence criteria. This component offers:

Extended lifetime rating of 10,000 hours at 105°C
ROHS3 compliance
Identical capacitance, voltage, tolerance, and operating temperature range
Identical lead spacing, case diameter, and seated height
Higher ripple current capability at 120 Hz (910 mA vs. 750 mA)

The UHE2A331MHD6 carries a product status of "Not For New Designs," limiting its suitability for new development projects. The impedance specification of 80 mOhms exceeds the original 45 mOhms, which may impact high-frequency performance in sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the EKZE101ELL331MM20S be used as a direct replacement for the KZE100VB331M18X20LL?

A: Yes. The EKZE101ELL331MM20S is electrically and mechanically equivalent. Both components share identical capacitance (330 µF), voltage rating (100 V), tolerance (±20%), lead spacing (7.50 mm), and case diameter (18.00 mm). The seated height difference of 1.50 mm is within standard PCB assembly tolerances.

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

A: The EKZE101ELL331MM20S is manufactured by Chemi-Con with active product status and ROHS3 compliance. The UHE2A331MHD6 is manufactured by Nichicon with extended lifetime (10,000 hours vs. 5,000 hours) but carries "Not For New Designs" status. Both meet electrical and mechanical equivalence requirements.

Q: Does the height difference between KZE100VB331M18X20LL (20.00 mm) and EKZE101ELL331MM20S (21.50 mm) affect PCB assembly?

A: No. The 1.50 mm height increase is within standard through-hole component tolerances and does not impact PCB layout or assembly processes for general-purpose applications.

Q: Is the UHE2A331MHD6 suitable for new product designs?

A: The UHE2A331MHD6 carries a "Not For New Designs" status. While it meets all electrical and mechanical equivalence criteria, the EKZE101ELL331MM20S is the preferred choice for new development due to its active product status.

Q: What is the impact of the impedance difference in the UHE2A331MHD6?

A: The UHE2A331MHD6 has an impedance of 80 mOhms compared to 45 mOhms in the original part. This higher impedance may affect performance in high-frequency ripple current applications or circuits sensitive to ESR characteristics.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both EKZE101ELL331MM20S and UHE2A331MHD6 are ROHS3 compliant, whereas the original KZE100VB331M18X20LL is RoHS non-compliant.

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