EET-HC2W181DA Equivalent & Substitute Parts

Part Overview

The Panasonic EET-HC2W181DA is a 180 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package format, rated for general-purpose applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The TS-HC series has been superseded by active production alternatives that maintain electrical and mechanical compatibility while offering improved performance characteristics such as extended operational lifetime and enhanced ripple current handling.

Key Parameters

Parameter	Value
Capacitance	180 µF
Voltage Rating	450 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.181" (30.00 mm)
Operating Temperature Range	-25°C to 105°C
Polarization	Polar

Substitute Part Grouping Explanation

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

Critical Matching Parameters:

Capacitance: 180 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" (10.00 mm) (exact match required)
Case Diameter: 1.181" (30.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -25°C to 105°C minimum (equal or wider range acceptable)

All substitute parts listed meet these criteria. Variations in lifetime rating, ripple current specifications, ESR values, and height dimensions are secondary parameters that do not preclude substitution but reflect different series performance characteristics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Diameter	Height (Max)	Lead Spacing	Product Status
EET-HC2W181DA	Panasonic Electronic Components	TS-HC	180 µF	450 V	±20%	2000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Obsolete
450MXG180MEFCSN30X25	Rubycon	MXG	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
450MXH180MEFC30X25	Rubycon	MXH	180 µF	450 V	±20%	2000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
450MXH180MEFCSN30X25	Rubycon	MXH	180 µF	450 V	±20%	2000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
450VXH180MEFC30X25	Rubycon	VXH	180 µF	450 V	±20%	5000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
450VXH180MEFCSN30X25	Rubycon	VXH	180 µF	450 V	±20%	5000 Hrs	1.181" (30.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
B43508C5187M000	EPCOS - TDK Electronics	B43508	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Active
B43508C5187M2	EPCOS - TDK Electronics	B43508	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Active
B43508C5187M60	EPCOS - TDK Electronics	B43508	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Active
B43508C5187M62	EPCOS - TDK Electronics	B43508	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Active
B43508C5187M67	EPCOS - TDK Electronics	B43508	180 µF	450 V	±20%	3000 Hrs	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	Active

Engineering Selection Recommendations

All listed substitute parts are classified as active production components, ensuring long-term availability and supply chain stability. The Rubycon MXG, MXH, and VXH series, along with EPCOS B43508 variants, are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Selection between substitute options depends on application-specific lifetime requirements:

Extended Lifetime Applications (5000 Hrs @ 105°C): Rubycon 450VXH180MEFC30X25 or 450VXH180MEFCSN30X25
Standard Lifetime Applications (2000-3000 Hrs @ 105°C): Rubycon MXH series or EPCOS B43508 variants
Enhanced Ripple Current Handling: Rubycon VXH series provides highest ripple current ratings at both low and high frequencies

Height dimension variations exist between substitute families. Rubycon MXG and VXH series are 0.197" (5.00 mm) shorter than the original EET-HC2W181DA, while EPCOS B43508 variants maintain identical height. PCB layout constraints should determine selection between these groups.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different lifetime rating?

A: Yes. Lifetime rating is a secondary performance parameter. All listed substitutes meet the critical electrical and mechanical specifications. Selection should be based on application duty cycle and expected service life requirements.

Q: Are there height dimension restrictions for substitution?

A: Height differences exist between substitute families. Rubycon MXG and VXH series measure 1.063" (27.00 mm) maximum height, compared to 1.260" (32.00 mm) for the original and EPCOS B43508 variants. Verify PCB clearance and mounting constraints before selection.

Q: Do all substitutes have the same ripple current capability?

A: No. Ripple current specifications vary by series. Rubycon VXH series provides the highest ripple current ratings. EPCOS B43508 and Rubycon MXH series offer intermediate ratings. Rubycon MXG series provides the lowest ripple current values. Select based on circuit ripple current requirements.

Q: What is the difference between snap-in and standard radial packages?

A: Snap-in packages feature mechanical locking tabs that secure the capacitor to the PCB without solder, enabling rapid assembly and replacement. All listed substitutes maintain snap-in package compatibility with the original EET-HC2W181DA.

Q: Are there compliance differences between substitute manufacturers?

A: All active substitutes are ROHS3 compliant. Rubycon parts are REACH unaffected. EPCOS B43508 variants are also REACH unaffected. The original Panasonic part is REACH affected. Regulatory compliance should be verified against specific application requirements.

Q: Can I mix different substitute part numbers in the same design?

A: All listed substitutes are electrically and mechanically interchangeable within the specified parameters. However, design consistency and supply chain management typically favor standardizing on a single substitute part number per application.

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