KY35VB331M10X16LL Equivalent & Substitute Parts

Part Overview

The KY35VB331M10X16LL is a 330 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KY series. This radial, through-hole component is rated for 7000 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 958 units in stock.

Substitute parts are necessary when the original component becomes unavailable, when design requirements demand improved reliability specifications, or when compliance upgrades are required for new manufacturing standards.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	-
Voltage - Rated	35	V
Lifetime @ Temperature	7000	Hrs @ 105°C
Operating Temperature Range	-40 to 105	°C
Ripple Current @ 120 Hz	605	mA
Ripple Current @ 100 kHz	1.21	A
Impedance	60	mOhms
Lead Spacing	5.00	mm
Diameter	10.00	mm
Height - Seated (Max)	16.00	mm
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Polarization	Polar	-
Applications	General Purpose	-

Substitute Part Grouping Explanation

Substitution eligibility for the KY35VB331M10X16LL is determined by strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 35 V (exact match required)
Lead Spacing: 5.00 mm (exact match required)
Diameter: 10.00 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 to 105°C (exact match required)

Parameters Allowing Variation:

Height - Seated (Max): Variation permitted within PCB layout constraints
Lifetime @ Temperature: Variation permitted; higher values indicate improved reliability
Ripple Current Ratings: Variation permitted; higher values indicate enhanced performance
Impedance: Variation permitted; lower values indicate improved performance
RoHS Status: Variation permitted; compliance upgrades acceptable
Product Status: Variation permitted; active status preferred over obsolescence

The four substitute parts listed below meet all critical parameter requirements while offering variations in reliability, performance, and compliance characteristics.

Parameter Comparison

Parameter	KY35VB331M10X16LL (Main)	EKY-350ELL331MJ16S	35ZLH330MEFC10X12.5	EEU-EB1V331	UHE1V331MPD
Manufacturer	Chemi-Con	Chemi-Con	Rubycon	Panasonic	Nichicon
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Tolerance	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	35 V	35 V	35 V	35 V	35 V
Lifetime @ Temp.	7000 Hrs @ 105°C	7000 Hrs @ 105°C	10000 Hrs @ 105°C	10000 Hrs @ 105°C	7000 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
Ripple Current @ 120 Hz	605 mA	605 mA	731.5 mA	278 mA	847 mA
Ripple Current @ 100 kHz	1.21 A	1.21 A	1.33 A	361.4 mA	1.21 A
Impedance	60 mOhms	60 mOhms	39 mOhms	-	60 mOhms
Lead Spacing	5.00 mm	5.00 mm	5.00 mm	5.00 mm	5.00 mm
Diameter	10.00 mm	10.00 mm	10.00 mm	10.00 mm	10.00 mm
Height - Seated (Max)	16.00 mm	17.50 mm	14.00 mm	17.00 mm	16.00 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	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Not For New Designs
Inventory (Pcs)	958	8462	4400	3163	1091

Engineering Selection Recommendations

EKY-350ELL331MJ16S (Chemi-Con)

This substitute maintains identical electrical performance to the KY35VB331M10X16LL while offering ROHS3 compliance. Height increases from 16.00 mm to 17.50 mm. Suitable for applications requiring compliance upgrade within the same manufacturer ecosystem. High inventory availability (8462 units) supports production continuity.

35ZLH330MEFC10X12.5 (Rubycon)

This substitute provides enhanced reliability with 10000-hour lifetime rating versus 7000 hours, and superior impedance performance (39 mOhms versus 60 mOhms). ROHS3 compliant. Height reduces to 14.00 mm, accommodating space-constrained designs. Ripple current ratings increase across both frequency bands. Recommended for applications demanding extended operational life and lower ESR characteristics.

EEU-EB1V331 (Panasonic)

This substitute offers 10000-hour lifetime rating and ROHS3 compliance. Height is 17.00 mm. Ripple current ratings are lower than the main part (278 mA @ 120 Hz, 361.4 mA @ 100 kHz), indicating reduced ripple current handling capacity. Suitable for low-ripple applications where extended lifetime is prioritized. Active product status supports new design implementation.

UHE1V331MPD (Nichicon)

This substitute maintains identical electrical performance and 7000-hour lifetime. ROHS3 compliant. Product status is "Not For New Designs," indicating obsolescence trajectory. Ripple current performance exceeds the main part (847 mA @ 120 Hz). Inventory is limited (1091 units). Suitable only for legacy design maintenance or existing production continuation where alternative substitutes are unavailable.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different height dimensions?

A: Height variation is permitted if PCB layout accommodates the dimensional change. The 35ZLH330MEFC10X12.5 (14.00 mm) is shorter and fits space-constrained designs. The EKY-350ELL331MJ16S (17.50 mm) and EEU-EB1V331 (17.00 mm) require verification of available vertical clearance. Lead spacing and diameter remain constant across all substitutes.

Q: What is the difference between RoHS non-compliant and ROHS3 compliant parts?

A: The main part KY35VB331M10X16LL is RoHS non-compliant. All four substitutes are ROHS3 compliant, meeting current environmental and hazardous substance restrictions. ROHS3 compliance is required for new product designs and many manufacturing jurisdictions.

Q: Which substitute offers the best reliability?

A: The 35ZLH330MEFC10X12.5 and EEU-EB1V331 both provide 10000-hour lifetime ratings at 105°C, compared to 7000 hours for the main part and UHE1V331MPD. The 35ZLH330MEFC10X12.5 additionally offers superior impedance performance (39 mOhms).

Q: Can I use UHE1V331MPD for new designs?

A: No. The UHE1V331MPD carries "Not For New Designs" status, indicating the manufacturer has discontinued active support. This part is suitable only for legacy design maintenance or existing production continuation. For new designs, select from EKY-350ELL331MJ16S, 35ZLH330MEFC10X12.5, or EEU-EB1V331.

Q: What does impedance mean, and why does it matter?

A: Impedance (measured in mOhms) represents the part's internal resistance at operating frequency. Lower impedance indicates better high-frequency performance and reduced voltage ripple. The 35ZLH330MEFC10X12.5 (39 mOhms) outperforms the main part (60 mOhms) in this characteristic.

Q: Are all substitutes pin-compatible with the original part?

A: Yes. All substitutes maintain identical lead spacing (5.00 mm), diameter (10.00 mm), mounting type (through-hole), and package configuration (radial, can). PCB footprints are compatible. Height variation requires verification of available vertical clearance only.

Q: Which substitute has the highest ripple current rating?

A: The UHE1V331MPD provides the highest ripple current at low frequency (847 mA @ 120 Hz). The 35ZLH330MEFC10X12.5 provides the highest ripple current at high frequency (1.33 A @ 100 kHz). The EEU-EB1V331 provides the lowest ripple current ratings across both frequency bands.

Q: What is the difference between "Upgrade" and "Direct" substitute classifications?

A: "Upgrade" substitutes (EKY-350ELL331MJ16S, EEU-EB1V331) indicate improved compliance or reliability characteristics. "Direct" substitutes (35ZLH330MEFC10X12.5) indicate equivalent or superior performance from alternative manufacturers. "Parametric Equivalent" (UHE1V331MPD) indicates matching electrical specifications but with product status concerns.

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