EET-HC2G101BA Equivalent & Substitute Parts

Part Overview

The Panasonic EET-HC2G101BA is a 100 µF, 400 V aluminum electrolytic capacitor in radial, can snap-in package format, designed for general purpose applications. This part is classified as obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility with the original design specifications.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	400 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Case Diameter	0.866" (22.00mm)
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the EET-HC2G101BA are qualified based on the following electrical and mechanical parameters:

Capacitance: 100 µF (exact match required)
Voltage Rating: 400 V (exact match required)
Tolerance: ±20% (exact match required)
Package Configuration: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Case Diameter: 0.866" (22.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All EPCOS B43508 and B43644 series parts listed meet these core substitution criteria. Variations in ESR, lifetime rating, and operating temperature range represent performance enhancements or different design variants within the same functional class.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Operating Temp Range	Lead Spacing	Case Diameter	Height (Max)	Product Status
EET-HC2G101BA	Panasonic	100 µF	400 V	±20%	1.824 Ω @ 120 Hz	2000 Hrs	-25°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Obsolete
B43508A9107M000	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Not For New Designs
B43508A9107M002	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active
B43508A9107M60	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active
B43508A9107M62	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active
B43508A9107M67	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active
B43508A9107M7	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active
B43508A9107M80	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.071" (27.20mm)	Active
B43508A9107M82	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.071" (27.20mm)	Active
B43508A9107M87	EPCOS - TDK	100 µF	400 V	±20%	1.23 Ω @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.071" (27.20mm)	Active
B43644A9107M000	EPCOS - TDK	100 µF	400 V	±20%	870 mΩ @ 100 Hz	5000 Hrs	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	1.063" (27.00mm)	Active

Engineering Selection Recommendations

Primary Recommendation: B43508A9107M002

This part is classified as Active and offers improved performance characteristics over the obsolete EET-HC2G101BA. It maintains identical mechanical compatibility while providing lower ESR (1.23 Ω vs. 1.824 Ω) and extended lifetime rating (3000 hours vs. 2000 hours). ROHS3 compliance and REACH Unaffected status support modern supply chain requirements.

Alternative Recommendation: B43644A9107M000

This part represents the highest performance option within the substitute group, featuring the lowest ESR (870 mΩ) and longest lifetime rating (5000 hours). Active product status and ROHS3 compliance make it suitable for new designs. The extended thermal performance and reduced impedance provide additional design margin for demanding applications.

Secondary Options: B43508A9107M60, B43508A9107M62, B43508A9107M67, B43508A9107M7, B43508A9107M80, B43508A9107M82, B43508A9107M87

All B43508 variants maintain identical electrical specifications and mechanical dimensions. These parts differ only in packaging configuration or regional distribution codes. All are Active status with ROHS3 compliance and REACH Unaffected designation.

Not Recommended for New Designs: B43508A9107M000

Although electrically and mechanically compatible, this part carries "Not For New Designs" status and should be reserved for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can B43508A9107M002 be used as a direct replacement for EET-HC2G101BA?

A: Yes. Both parts share identical capacitance (100 µF), voltage rating (400 V), tolerance (±20%), lead spacing (10.00mm), case diameter (22.00mm), and snap-in package configuration. Mechanical fit and electrical function are equivalent.

Q: What is the difference between B43508 and B43644 series parts?

A: Both series meet the core substitution criteria. The B43644 series offers superior performance with lower ESR (870 mΩ vs. 1.23 Ω) and extended lifetime (5000 hours vs. 3000 hours). Selection depends on application thermal and ripple current requirements.

Q: Are there height differences between substitute parts?

A: Most B43508 variants specify 1.063" (27.00mm) maximum seated height. B43508A9107M80, B43508A9107M82, and B43508A9107M87 specify 1.071" (27.20mm). This 0.008" difference is within typical PCB layout tolerance but should be verified for space-constrained designs.

Q: Do all substitute parts meet RoHS compliance?

A: All EPCOS B43508 and B43644 series parts listed are ROHS3 compliant. The original Panasonic EET-HC2G101BA does not specify RoHS status in the provided data.

Q: Which part should be selected for new product designs?

A: B43644A9107M000 is the recommended choice for new designs, offering Active product status, ROHS3 compliance, lowest ESR, and longest lifetime rating. B43508A9107M002 is an acceptable alternative with equivalent performance characteristics and lower cost.

Q: What does "Not For New Designs" mean for B43508A9107M000?

A: This designation indicates the part is available for existing product support and legacy system maintenance but should not be selected for new circuit designs. Active alternatives provide equivalent or superior performance.

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