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EET-HC2W331KC Equivalent & Substitute Parts
Part Overview
The EET-HC2W331KC is a 330 µF, 450 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 -25°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring high-voltage energy storage and filtering.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 330 µF |
| Voltage Rating | 450 V |
| Tolerance | ±20% |
| Package Type | Radial, Can - Snap-In |
| Lead Spacing | 0.394" (10.00 mm) |
| Diameter | 1.181" (30.00 mm) |
| Height (Seated Max) | 1.654" (42.00 mm) |
| Mounting Type | Through Hole |
| Operating Temperature | -25°C ~ 105°C |
| Polarization | Polar |
Substitute Part Grouping Explanation
Substitution for the EET-HC2W331KC is determined by strict equivalence across the following critical parameters:
- Capacitance: 330 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)
- Physical Dimensions: 1.181" Dia × 1.654" Height (exact match required)
- Mounting Type: Through Hole (exact match required)
- Polarization: Polar (exact match required)
All substitute parts listed below meet these core electrical and mechanical requirements. Secondary parameters such as lifetime rating, ripple current capacity, ESR, and operating temperature range may vary within acceptable engineering tolerances but do not disqualify substitution eligibility.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Voltage | Tolerance | Lifetime @ 105°C | Operating Temp | Lead Spacing | Diameter | Height (Max) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| EET-HC2W331KC | Panasonic | 330 µF | 450 V | ±20% | 2000 Hrs | -25°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Obsolete |
| 450VXH330MEFC30X40 | Rubycon | 330 µF | 450 V | ±20% | 5000 Hrs | -25°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| 450VXH330MEFCSN30X40 | Rubycon | 330 µF | 450 V | ±20% | 5000 Hrs | -25°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M000 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M002 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M062 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M60 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M67 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.654" (42.00 mm) | Active |
| B43508B5337M80 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.661" (42.20 mm) | Active |
| B43508B5337M82 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.661" (42.20 mm) | Active |
| B43508B5337M87 | EPCOS - TDK Electronics | 330 µF | 450 V | ±20% | 3000 Hrs | -40°C ~ 105°C | 0.394" (10.00 mm) | 1.181" (30.00 mm) | 1.661" (42.20 mm) | Active |
Engineering Selection Recommendations
All listed substitute parts are active production components from established manufacturers (Rubycon and EPCOS - TDK Electronics), ensuring long-term availability and supply chain stability compared to the obsolete EET-HC2W331KC.
Rubycon 450VXH series parts (450VXH330MEFC30X40 and 450VXH330MEFCSN30X40) offer extended lifetime ratings of 5000 hours at 105°C, providing enhanced reliability margins for applications requiring extended operational life. Both variants maintain identical electrical and mechanical specifications and carry ROHS3 compliance certification.
EPCOS - TDK Electronics B43508 series parts provide active product status with 3000-hour lifetime ratings at 105°C and extended operating temperature range (-40°C to 105°C). Multiple packaging variants (B43508B5337M000, M002, M060, M062, M067, M080, M082, M087) are available with ROHS3 compliance. Minor height variations exist in certain variants (1.661" versus 1.654"), which remain within standard mechanical tolerance for snap-in mounting applications.
Selection between Rubycon and EPCOS variants depends on application-specific requirements for lifetime rating, temperature range, and supply chain preference. All substitutes maintain identical capacitance, voltage rating, tolerance, lead spacing, and mounting type as the original part.
Frequently Asked Questions (FAQ)
Q: Can the EET-HC2W331KC be directly replaced with any of these substitute parts?
A: Yes. All listed substitute parts meet the core electrical and mechanical requirements: 330 µF capacitance, 450 V voltage rating, ±20% tolerance, radial snap-in package, 0.394" lead spacing, and through-hole mounting. Physical dimensions remain compatible with the original design.
Q: What is the difference between Rubycon and EPCOS substitute options?
A: Rubycon 450VXH series parts offer 5000-hour lifetime at 105°C versus 3000 hours for EPCOS B43508 series. EPCOS parts provide extended operating temperature range (-40°C to 105°C) compared to Rubycon (-25°C to 105°C). Both manufacturers provide ROHS3 compliance and active product status.
Q: Are there height differences between substitute parts?
A: Most EPCOS B43508 variants maintain 1.654" seated height. Variants M080, M082, and M087 have 1.661" height, a 0.007" difference. This minor variation remains within standard mechanical tolerance for snap-in mounting applications and does not affect electrical performance or board-level compatibility.
Q: Do all substitute parts have the same ripple current rating?
A: No. Rubycon 450VXH series parts specify 1.75 A at 120 Hz and 2.45 A at 10 kHz. EPCOS B43508 series parts specify 1.56 A at 100 Hz. The original EET-HC2W331KC specifies 1.38 A at 120 Hz. Application-specific ripple current requirements should be evaluated against the intended circuit design.
Q: Which substitute part offers the best long-term availability?
A: Rubycon 450VXH330MEFCSN30X40 and EPCOS B43508 variants are all active production components with substantial inventory levels (100,400+ units and 273,000+ units respectively), ensuring reliable long-term supply compared to the obsolete original part.
Q: Are all substitute parts RoHS compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and use.
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