EET-HC2W101BA Equivalent & Substitute Parts

Part Overview

The EET-HC2W101BA is a 100 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The TS-HC series snap-in configuration provides mechanical compatibility with legacy equipment while maintaining electrical performance specifications for general-purpose applications.

Key Parameters

Parameter	Value
Capacitance	100 µF
Tolerance	±20%
Voltage - Rated	450 V
Package / Case	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
Size / Dimension	0.866" Dia (22.00mm)
Height - Seated (Max)	1.260" (32.00mm)
Mounting Type	Through Hole
Polarization	Polar
Operating Temperature	-25°C ~ 105°C

Substitute Part Grouping Explanation

Substitution eligibility for the EET-HC2W101BA is determined by strict adherence to the following parameters:

Critical Matching Parameters:

Capacitance: 100 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Diameter: 0.866" (22.00mm) (exact match required)
Height: 1.260" (32.00mm) maximum (exact match or lower required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: -25°C ~ 105°C minimum (equal or wider range acceptable)
Lifetime @ Temperature: 2000 Hrs @ 105°C minimum (equal or greater acceptable)
ESR @ 120Hz or 100Hz: Lower values acceptable (improved performance)
Ripple Current: Equal or greater acceptable (improved performance)

All substitute parts listed maintain mechanical and electrical compatibility within these defined parameters. Variations in ESR, ripple current ratings, and lifetime specifications represent performance improvements or equivalent ratings and do not affect functional substitution.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Operating Temp	Height (Max)	Product Status
EET-HC2W101BA	Panasonic	100 µF	450 V	±20%	1.824Ω @ 120Hz	2000 Hrs	-25°C ~ 105°C	1.260" (32.00mm)	Obsolete
381LR101M450H022	Cornell Dubilier Electronics	100 µF	450 V	±20%	1.99Ω @ 120Hz	3000 Hrs	-25°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M000	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M062	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M2	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M67	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M7	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.260" (32.00mm)	Active
B43508A5107M82	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.268" (32.20mm)	Active
B43508A5107M87	EPCOS - TDK Electronics	100 µF	450 V	±20%	1.23Ω @ 100Hz	3000 Hrs	-40°C ~ 105°C	1.268" (32.20mm)	Active
LAR2W101MELZ30	Nichicon	100 µF	450 V	±20%	Not Specified	2000 Hrs	-25°C ~ 105°C	1.181" (30.00mm)	Active
LGG2W101MELZ25	Nichicon	100 µF	450 V	±20%	Not Specified	2000 Hrs	-25°C ~ 105°C	1.063" (27.00mm)	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Extended Lifetime):

The EPCOS - TDK Electronics B43508 series variants (B43508A5107M000, B43508A5107M062, B43508A5107M2, B43508A5107M67, B43508A5107M7, B43508A5107M82, B43508A5107M87) are recommended as primary substitutes. These parts are active products with RoHS3 compliance, extended 3000-hour lifetime at 105°C, and lower ESR specifications (1.23Ω @ 100Hz). The wider operating temperature range (-40°C ~ 105°C) provides additional environmental margin. All variants maintain identical electrical and mechanical specifications with only packaging date code variations.

Secondary Substitutes (Active Status, Equivalent Lifetime):

The Cornell Dubilier Electronics 381LR101M450H022 is an active product with 3000-hour lifetime and equivalent mechanical dimensions. The Nichicon LAR2W101MELZ30 and LGG2W101MELZ25 are active products with 2000-hour lifetime matching the original specification. The LAR2W101MELZ30 maintains identical height (1.260"), while the LGG2W101MELZ25 features a reduced height (1.063") suitable for space-constrained applications where mechanical clearance permits.

Compliance Considerations:

All substitute parts listed are RoHS3 compliant and REACH unaffected, except the original EET-HC2W101BA which is REACH affected. Selection of substitute parts eliminates REACH compliance concerns for new designs and ongoing production.

Frequently Asked Questions (FAQ)

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

A: Height substitution is acceptable only when the reduced dimension does not conflict with mechanical mounting constraints. The LAR2W101MELZ30 (1.181" height) and LGG2W101MELZ25 (1.063" height) are mechanically compatible with the original 1.260" specification. Parts with heights exceeding 1.260" are not acceptable substitutes. Verify clearance in your specific application before selection.

Q: What is the difference between the various B43508 part numbers?

A: All B43508A5107M variants listed (M000, M062, M2, M67, M7, M82, M87) share identical electrical and mechanical specifications. The suffix designations represent manufacturing date codes or internal tracking codes from EPCOS - TDK Electronics. Selection among these variants is interchangeable from an engineering perspective.

Q: Does lower ESR affect circuit performance?

A: Lower ESR values represent improved electrical performance. The B43508 series with 1.23Ω ESR @ 100Hz provides superior performance compared to the original 1.824Ω @ 120Hz. This improvement reduces heat generation and improves ripple current handling. No circuit redesign is required when substituting with lower ESR parts.

Q: Are there temperature range differences I should consider?

A: The EPCOS - TDK Electronics B43508 series operates from -40°C to 105°C, providing a 15°C lower minimum temperature compared to the original -25°C specification. This extended range is beneficial for applications requiring enhanced cold-temperature performance. The Panasonic original and Nichicon alternatives maintain the -25°C to 105°C range. Selection depends on your application's minimum operating temperature requirement.

Q: What is the significance of the 2000-hour versus 3000-hour lifetime rating?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation exceeds tolerance limits. The original EET-HC2W101BA specifies 2000 hours. Substitute parts offering 3000-hour ratings provide 50% extended service life under identical thermal stress conditions. Both ratings are acceptable for general-purpose applications; selection of extended-life parts provides additional design margin.

Q: Can I substitute based on ripple current specifications alone?

A: No. Ripple current is a secondary parameter. Primary substitution criteria are capacitance, voltage rating, tolerance, package type, lead spacing, diameter, height, and mounting type. All listed substitutes meet these primary requirements. Ripple current variations indicate performance differences but do not determine substitution eligibility.

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