EET-HC2E331CA Equivalent & Substitute Parts

Part Overview

The EET-HC2E331CA is a 330 µF, 250 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 design support and production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 2000 hours at 105°C, serving general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
Diameter	0.984" (25.00mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the EET-HC2E331CA is determined by strict adherence to the following parameters:

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" (10.00mm) (exact match required)
Diameter: 0.984" (25.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in ESR, ripple current ratings, and lifetime specifications do not disqualify substitution when the primary parameters align.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ Frequency	Lifetime @ 105°C	Lead Spacing	Diameter	Height (Max)	Product Status
EET-HC2E331CA	Panasonic	330 µF	250 V	±20%	502 mOhm @ 120Hz	2000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Obsolete
B43508F2337M	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M2	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M60	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M62	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M67	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M7	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.063" (27.00mm)	Active
B43508F2337M80	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.071" (27.20mm)	Active
B43508F2337M82	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.071" (27.20mm)	Active
B43508F2337M87	EPCOS - TDK Electronics	330 µF	250 V	±20%	350 mOhm @ 100Hz	3000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	1.071" (27.20mm)	Active
LAR2E331MELA25	Nichicon	330 µF	250 V	±20%	Not specified	2000 Hrs	0.394" (10.00mm)	0.984" (25.00mm)	0.984" (25.00mm)	Active

Engineering Selection Recommendations

All listed substitute parts satisfy the core electrical and mechanical requirements for direct replacement of the EET-HC2E331CA. Selection among available options should be based on the following criteria:

EPCOS - TDK Electronics B43508 Series (B43508F2337M variants): These parts are active products with ROHS3 compliance and extended lifetime ratings of 3000 hours at 105°C, compared to the original 2000-hour specification. The lower ESR of 350 mOhm at 100Hz provides improved performance characteristics. Height variations between 1.063" (27.00mm) and 1.071" (27.20mm) are within typical PCB layout tolerances for snap-in capacitors.

Nichicon LAR2E331MELA25: This active product maintains the original 2000-hour lifetime specification and matches the original height of 0.984" (25.00mm). ROHS3 compliance is confirmed. This option is suitable for applications requiring dimensional consistency with the original design.

All substitute parts carry REACH compliance status and EAR99 ECCN classification consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can B43508F2337M variants with different suffix codes (M, M2, M60, M62, M67, M7, M80, M82, M87) be used interchangeably?

A: Yes. All B43508F2337M variants meet identical electrical specifications (330 µF, 250 V, ±20%, 350 mOhm @ 100Hz, 3000 Hrs @ 105°C). Suffix codes indicate manufacturing date codes or internal tracking. Height variations (1.063" vs 1.071") are within standard PCB clearance tolerances for through-hole snap-in packages.

Q: What is the difference between the original EET-HC2E331CA and the EPCOS B43508 substitutes?

A: The primary differences are product status (obsolete vs. active), ESR performance (502 mOhm vs. 350 mOhm), and lifetime rating (2000 Hrs vs. 3000 Hrs at 105°C). All core parameters—capacitance, voltage, tolerance, package type, lead spacing, and diameter—are identical. The B43508 series offers improved electrical performance.

Q: Is the Nichicon LAR2E331MELA25 a better choice than the EPCOS alternatives?

A: The Nichicon part maintains the original 2000-hour lifetime and offers a shorter height (0.984" vs. 1.063"), which may be advantageous in space-constrained designs. The EPCOS variants provide superior ESR performance and extended lifetime. Selection depends on application requirements and available PCB space.

Q: Are all substitute parts RoHS compliant?

A: The EPCOS B43508 series and Nichicon LAR2E331MELA25 are ROHS3 compliant. The original EET-HC2E331CA does not specify RoHS status in the provided data.

Q: Can these capacitors be used in high-ripple-current applications?

A: The original EET-HC2E331CA supports 1.2 A at 120 Hz and 1.68 A at 10 kHz. The EPCOS B43508 series supports 1.15 A at 100 Hz. The Nichicon LAR2E331MELA25 supports 1.2 A at 120 Hz and 1.8 A at 50 kHz. Application-specific ripple current requirements must be evaluated against these ratings.

Q: What is the lead spacing tolerance for these snap-in capacitors?

A: All parts specify 0.394" (10.00mm) lead spacing. This is the standard pitch for radial snap-in aluminum electrolytic capacitors and ensures direct PCB compatibility without modification.

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