KMG16VB331M8X11LL Equivalent & Substitute Parts

Part Overview

The KMG16VB331M8X11LL is a 330 µF, 16 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KMG series. This radial, through-hole component is rated for 1000 hours at 105°C with an equivalent series resistance of 1.005 Ohm @ 120 Hz. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing applications and new designs. Equivalent alternatives maintain the same electrical and mechanical specifications, while substitutes offer enhanced performance characteristics or improved product status.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
ESR @ 120 Hz	1.005 Ohm
Lifetime @ 105°C	1000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Ripple Current @ 120 Hz	260 mA
Ripple Current @ 100 kHz	390 mA
Lead Spacing	0.138" (3.50 mm)
Diameter	0.315" (8.00 mm)
Height	0.453" (11.50 mm)
Mounting Type	Through Hole Radial
Polarization	Polar
RoHS Status	RoHS Non-Compliant

Substitute Part Grouping Explanation

Substitution of the KMG16VB331M8X11LL is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 16 V (or higher)
Tolerance: ±20%
Polarization: Polar
Mounting Type: Through Hole Radial
Lead Spacing: 0.138" (3.50 mm)
Diameter: 0.315" (8.00 mm)

Performance Parameters (Determine Substitution Class):

Lifetime @ 105°C: 1000 Hrs (minimum)
Operating Temperature Range: -55°C ~ 105°C
Ripple Current Ratings @ 120 Hz and 100 kHz
ESR characteristics

Substitutes are classified into two categories:

Direct Equivalents: Parts maintaining identical electrical performance and physical dimensions (EKMG160ELL331MHB5D, UKT1C331MPD, ECA-1CHG331, UVZ1C331MPD)
Performance Upgrades: Parts with enhanced lifetime ratings, improved ripple current handling, or superior compliance status (EEU-FC1C331, UKT1E331MPD, UPW1C331MPD)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Height (Max)	Product Status	RoHS Status	Ripple Current @ 120 Hz
KMG16VB331M8X11LL	Chemi-Con	330 µF	16 V	1000 Hrs	0.453" (11.50 mm)	Obsolete	Non-Compliant	260 mA
EKMG160ELL331MHB5D	Chemi-Con	330 µF	16 V	1000 Hrs	0.512" (13.00 mm)	Active	ROHS3 Compliant	260 mA
UKT1C331MPD	Nichicon	330 µF	16 V	1000 Hrs	0.453" (11.50 mm)	Not For New Designs	ROHS3 Compliant	265 mA
EEU-FC1C331	Panasonic	330 µF	16 V	2000 Hrs	0.453" (11.50 mm)	Active	ROHS3 Compliant	360.8 mA
UKT1E331MPD	Nichicon	330 µF	25 V	1000 Hrs	0.453" (11.50 mm)	Not For New Designs	ROHS3 Compliant	290 mA
UPW1C331MPD	Nichicon	330 µF	16 V	3000 Hrs	0.453" (11.50 mm)	Not For New Designs	ROHS3 Compliant	360.75 mA
ECA-1CHG331	Panasonic	330 µF	16 V	1000 Hrs	0.492" (12.50 mm)	Active	ROHS3 Compliant	260 mA
UVZ1C331MPD	Nichicon	330 µF	16 V	1000 Hrs	0.512" (13.00 mm)	Not For New Designs	ROHS3 Compliant	265 mA

Engineering Selection Recommendations

For Direct Replacement (Existing Designs):

EKMG160ELL331MHB5D and ECA-1CHG331 are the primary direct replacements. Both maintain 330 µF / 16 V specifications with 1000-hour lifetime ratings. EKMG160ELL331MHB5D is an active Chemi-Con product within the same KMG series, offering continuity with the original manufacturer. ECA-1CHG331 is a Panasonic active product with identical electrical performance. Both are ROHS3 compliant, addressing regulatory requirements absent in the original part.

For Enhanced Performance (New Designs):

EEU-FC1C331 (Panasonic FC series) provides doubled lifetime (2000 hours @ 105°C) with significantly improved ripple current handling (360.8 mA @ 120 Hz versus 260 mA). This part carries AEC-Q200 automotive qualification and active product status, suitable for applications requiring extended operational life and higher current environments.

UPW1C331MPD (Nichicon UPW series) offers tripled lifetime (3000 hours @ 105°C) with enhanced ripple current capacity (360.75 mA @ 120 Hz). This part is classified as "Not For New Designs" but remains available for legacy system support.

Voltage Upgrade Option:

UKT1E331MPD provides a 25 V rating at identical physical dimensions and 330 µF capacitance. This part is suitable for applications where voltage margin improvement is required without physical space constraints.

Compliance Consideration:

All substitute parts listed are ROHS3 compliant, addressing the non-compliant status of the original KMG16VB331M8X11LL. Selection should prioritize active product status for new designs: EEU-FC1C331 and ECA-1CHG331 are recommended over "Not For New Designs" alternatives.

Frequently Asked Questions (FAQ)

Q: Can EKMG160ELL331MHB5D replace KMG16VB331M8X11LL in existing applications?

A: Yes. EKMG160ELL331MHB5D maintains identical electrical specifications (330 µF, 16 V, ±20%, 1000 Hrs @ 105°C) and mechanical compatibility (0.138" lead spacing, 0.315" diameter, through-hole radial mounting). The height difference (0.512" versus 0.453") must be verified against PCB clearance constraints. Both are Chemi-Con products within the KMG series.

Q: What is the difference between direct equivalents and performance upgrades?

A: Direct equivalents (EKMG160ELL331MHB5D, UKT1C331MPD, ECA-1CHG331, UVZ1C331MPD) maintain the 1000-hour lifetime specification. Performance upgrades (EEU-FC1C331 with 2000 hours, UPW1C331MPD with 3000 hours) extend operational life and increase ripple current capacity. Upgrades are suitable for applications requiring enhanced reliability or higher current environments.

Q: Is UKT1E331MPD a suitable substitute despite the 25 V rating?

A: UKT1E331MPD is electrically compatible for 16 V applications due to its higher voltage rating. The 25 V rating provides additional voltage margin without affecting performance in 16 V circuits. Physical dimensions remain identical (0.315" diameter, 0.453" height, 0.138" lead spacing). This part is classified as "Not For New Designs."

Q: Why do some substitutes have different heights?

A: Height variations (0.453", 0.492", 0.512") result from different internal construction and winding configurations across manufacturers. All listed parts maintain the 0.315" diameter and 0.138" lead spacing required for PCB compatibility. Height differences must be evaluated against available vertical clearance on the circuit board.

Q: Which substitute is recommended for new designs?

A: EEU-FC1C331 (Panasonic FC series) is recommended for new designs. It is an active product with ROHS3 compliance, AEC-Q200 automotive qualification, doubled lifetime (2000 hours @ 105°C), and superior ripple current performance (360.8 mA @ 120 Hz). ECA-1CHG331 is an alternative active product with equivalent electrical performance and identical physical dimensions to the original part.

Q: Are all substitutes RoHS compliant?

A: All listed substitutes are ROHS3 compliant. The original KMG16VB331M8X11LL is RoHS non-compliant. Compliance status is a critical consideration for applications subject to regulatory requirements or customer specifications.

Q: Can substitutes be used interchangeably on the same PCB?

A: Substitutes with identical lead spacing (0.138"), diameter (0.315"), and height (0.453") can be used interchangeably without PCB modification. Parts with different heights (EKMG160ELL331MHB5D at 0.512", ECA-1CHG331 at 0.492", UVZ1C331MPD at 0.512") require clearance verification. All maintain through-hole radial mounting compatibility.

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