EET-HC2E331BA Equivalent & Substitute Parts

Part Overview

The EET-HC2E331BA is a 330 µF, 250 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HC series. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations. The part features a radial, can-style snap-in package with through-hole mounting, designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures.

Key Parameters

Parameter	Value
Capacitance	330 µF
Tolerance	±20%
Voltage - Rated	250 V
ESR (Equivalent Series Resistance)	502 mOhm @ 120 Hz
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	0.866" Dia (22.00 mm)
Height - Seated (Max)	1.260" (32.00 mm)
Package / Case	Radial, Can - Snap-In
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the EET-HC2E331BA is determined by strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 250 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)
Physical Dimensions: 0.866" Dia (22.00 mm), Height 1.260" (32.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: Must encompass or match -40°C ~ 105°C
Lifetime @ 105°C: Equal to or exceeding 2000 hours
ESR: Electrical performance parameter; lower values indicate improved performance
Ripple Current Ratings: Must support application requirements

All substitute parts listed meet the primary substitution criteria. Variations in ESR, ripple current capacity, and lifetime ratings represent performance enhancements or equivalent specifications from alternative manufacturers.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Operating Temp Range	Lead Spacing	Size / Dimension	Height (Max)	Product Status
EET-HC2E331BA	Panasonic Electronic Components	330 µF	250 V	±20%	502 mOhm @ 120 Hz	2000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Obsolete
250MXG330MEFCSN22X30	Rubycon	330 µF	250 V	±20%	Not specified	3000 Hrs	-25°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
381LX331M250H022	Cornell Dubilier Electronics (CDE)	330 µF	250 V	±20%	502 mOhm @ 120 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M2	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M60	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M62	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M67	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M7	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.260" (32.00 mm)	Active
B43508E2337M80	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.268" (32.20 mm)	Active
B43508E2337M82	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100 Hz	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	0.866" Dia (22.00 mm)	1.268" (32.20 mm)	Active

Engineering Selection Recommendations

All listed substitute parts are classified as Active products, ensuring ongoing availability and manufacturer support. The EET-HC2E331BA, being obsolete, has no continued supply from Panasonic Electronic Components.

Compliance Status:

250MXG330MEFCSN22X30 (Rubycon): ROHS3 Compliant, REACH Unaffected
381LX331M250H022 (Cornell Dubilier Electronics): ROHS3 Compliant, REACH Unaffected
B43508E2337M series (EPCOS - TDK Electronics): ROHS3 Compliant, REACH Unaffected

All substitute parts carry ECCN EAR99 and HTSUS 8532.22.0040 classifications, matching the original part.

Performance Considerations: The EPCOS - TDK Electronics B43508E2337M series offers improved ESR performance (350 mOhm @ 100 Hz versus 502 mOhm @ 120 Hz) and extended lifetime ratings (3000 hours versus 2000 hours at 105°C). The 381LX331M250H022 from Cornell Dubilier Electronics matches the original ESR specification while providing extended lifetime. The 250MXG330MEFCSN22X30 from Rubycon provides the longest operational lifetime (3000 hours) with enhanced ripple current capacity.

Physical Compatibility: B43508E2337M80 and B43508E2337M82 variants feature a maximum seated height of 1.268" (32.20 mm), representing a 0.008" (0.20 mm) increase from the original specification. All other substitute parts maintain the original 1.260" (32.00 mm) height specification. Operating temperature range for the Rubycon part begins at -25°C, compared to -40°C for all other parts.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the EET-HC2E331BA?

A: All listed substitute parts meet the core electrical and mechanical specifications: 330 µF capacitance, 250 V rating, ±20% tolerance, radial snap-in package, 10.00 mm lead spacing, and 22.00 mm diameter. Physical mounting compatibility is confirmed for all parts. Verify PCB layout clearance for B43508E2337M80 and B43508E2337M82, which have a maximum height of 1.268" (32.20 mm) versus the original 1.260" (32.00 mm).

Q: What is the difference between the various B43508E2337M part numbers from EPCOS - TDK Electronics?

A: The B43508E2337M series variants (M, M2, M60, M62, M67, M7, M80, M82) share identical electrical specifications: 330 µF, 250 V, ±20% tolerance, 350 mOhm ESR @ 100 Hz, and 3000-hour lifetime at 105°C. The suffix designations represent manufacturing date codes or internal tracking variants. All are functionally equivalent for substitution purposes. B43508E2337M80 and B43508E2337M82 have a slightly increased maximum height of 1.268" (32.20 mm).

Q: How does the Rubycon 250MXG330MEFCSN22X30 differ from the original part?

A: The Rubycon part maintains identical capacitance, voltage, tolerance, lead spacing, and physical diameter specifications. It provides extended lifetime (3000 hours versus 2000 hours at 105°C) and higher ripple current capacity (1.51 A @ 120 Hz and 2.265 A @ 10 kHz). The operating temperature range begins at -25°C instead of -40°C. ESR is not specified for this part.

Q: Which substitute offers the best ESR performance?

A: The EPCOS - TDK Electronics B43508E2337M series offers the lowest ESR at 350 mOhm @ 100 Hz, compared to 502 mOhm @ 120 Hz for the original part and unspecified ESR for the Rubycon part. The Cornell Dubilier Electronics 381LX331M250H022 matches the original ESR specification at 502 mOhm @ 120 Hz.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 250MXG330MEFCSN22X30, 381LX331M250H022, and all B43508E2337M variants are RoHS3 compliant. All substitute parts are REACH unaffected.

Q: What is the inventory status of these substitute parts?

A: All substitute parts are listed as new original stock. Inventory quantities range from 604 to 981 units for the EPCOS - TDK Electronics variants, 925 units for the Cornell Dubilier Electronics part, and 656,850 units for the Rubycon part.

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