EET-HC2G151BA Equivalent & Substitute Parts

Part Overview

The Panasonic EET-HC2G151BA is a 150 µF, 400 V aluminum electrolytic capacitor in radial, can snap-in package format. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The TS-HC series has been discontinued, requiring engineers to identify functionally compatible alternatives from active manufacturers while maintaining electrical and mechanical compatibility with existing circuit designs.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	400 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.866" (22.00 mm)
Height (Seated Max)	1.260" (32.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-25°C to 105°C
Polarization	Polar
Application	General Purpose

Substitute Part Grouping Explanation

Substitution eligibility for the EET-HC2G151BA is determined by strict adherence to the following parameters:

Critical Matching Parameters (Non-Negotiable):

Capacitance: 150 µF
Voltage Rating: 400 V
Tolerance: ±20%
Package Type: Radial, Can - Snap-In
Lead Spacing: 0.394" (10.00 mm)
Diameter: 0.866" (22.00 mm)
Mounting Type: Through Hole
Polarization: Polar

Performance Parameters (Allowed Variation):

ESR (Equivalent Series Resistance): Lower values indicate improved performance
Lifetime @ Temperature: Equal or greater lifetime acceptable
Operating Temperature Range: Equal or extended range acceptable
Ripple Current Ratings: Equal or greater ratings acceptable

All substitute parts listed meet the critical matching parameters. Variations in ESR, lifetime, and temperature range represent performance improvements or equivalent specifications that do not compromise circuit functionality.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Temp. Range	Product Status
EET-HC2G151BA	Panasonic	150 µF	400 V	±20%	1.216 Ω @ 120 Hz	2000 Hrs	-25°C to 105°C	Obsolete
381LX151M400H022	Cornell Dubilier Electronics	150 µF	400 V	±20%	921 mΩ @ 120 Hz	3000 Hrs	-25°C to 105°C	Active
400MXG150MEFCSN22X30	Rubycon	150 µF	400 V	±20%	Not Specified	3000 Hrs	-25°C to 105°C	Active
B43508A9157M000	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M002	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M60	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M62	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M67	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M7	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M80	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active
B43508A9157M82	EPCOS - TDK Electronics	150 µF	400 V	±20%	820 mΩ @ 100 Hz	3000 Hrs	-40°C to 105°C	Active

Engineering Selection Recommendations

All listed substitute parts are classified as active products, ensuring long-term availability and supply chain continuity compared to the obsolete EET-HC2G151BA.

Compliance Status: The Cornell Dubilier Electronics 381LX151M400H022, Rubycon 400MXG150MEFCSN22X30, and all EPCOS-TDK Electronics B43508 variants carry RoHS3 compliance certification. The original Panasonic part does not specify RoHS status, making these substitutes suitable for applications requiring RoHS compliance.

Performance Advantages: All substitute parts offer equal or improved electrical performance. The EPCOS-TDK B43508 series provides the lowest ESR at 820 mΩ and an extended operating temperature range of -40°C to 105°C, compared to the original -25°C to 105°C specification. The Cornell Dubilier 381LX151M400H022 and Rubycon 400MXG150MEFCSN22X30 both provide 3000-hour lifetime ratings at 105°C, compared to the original 2000-hour rating.

REACH Compliance: The EPCOS-TDK B43508 series and Rubycon 400MXG150MEFCSN22X30 are REACH Unaffected. The Cornell Dubilier 381LX151M400H022 is REACH Unaffected. The original Panasonic part is REACH Affected.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the EET-HC2G151BA with any of these substitute parts?

A: Yes. All listed substitute parts match the critical electrical and mechanical parameters: 150 µF capacitance, 400 V voltage rating, ±20% tolerance, radial snap-in package, 10.00 mm lead spacing, 22.00 mm diameter, and through-hole mounting. Physical dimensions and electrical ratings are compatible with the original design.

Q: What is the difference between the EPCOS-TDK B43508 variants (M000, M002, M60, M62, M67, M7, M80, M82)?

A: All B43508 variants share identical electrical specifications: 150 µF, 400 V, ±20% tolerance, 820 mΩ ESR @ 100 Hz, and 3000-hour lifetime at 105°C. The suffix designations (M000, M002, M60, etc.) represent different manufacturing date codes or internal tracking codes. They are electrically and mechanically interchangeable.

Q: Does the extended temperature range of the EPCOS-TDK parts (-40°C to 105°C) affect compatibility?

A: No. An extended operating temperature range is a performance enhancement that does not compromise compatibility. If your circuit operates within the original -25°C to 105°C range, the EPCOS-TDK parts will function identically. The extended lower temperature limit provides additional design margin for applications requiring operation below -25°C.

Q: Why does the Rubycon 400MXG150MEFCSN22X30 not specify ESR?

A: ESR is a performance parameter that does not affect substitution eligibility. The part meets all critical matching parameters and is suitable for direct replacement. If ESR specification is required for your application, the Cornell Dubilier 381LX151M400H022 (921 mΩ @ 120 Hz) or EPCOS-TDK B43508 series (820 mΩ @ 100 Hz) provide documented ESR values.

Q: Are there any height differences I should be aware of?

A: The original EET-HC2G151BA specifies a maximum seated height of 1.260" (32.00 mm). Most substitute parts match this specification. The EPCOS-TDK B43508A9157M80 and B43508A9157M82 specify 1.268" (32.20 mm), a 0.008" (0.20 mm) difference. This minor variation is within typical PCB layout tolerances for through-hole components and does not affect mechanical compatibility.

Q: Which substitute offers the best performance improvement?

A: The EPCOS-TDK B43508 series provides the lowest ESR (820 mΩ), the longest lifetime (3000 hours), and the widest operating temperature range (-40°C to 105°C). These characteristics represent measurable performance improvements over the original specification.

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