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ECO-S2WB331EA Equivalent & Substitute Parts
Part Overview
The ECO-S2WB331EA 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 and substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 3000 hours at 105°C, serving 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 |
| Mounting Type | Through Hole |
| Lead Spacing | 0.394" (10.00 mm) |
| Polarization | Polar |
| Operating Temperature Range | -25°C to 105°C |
| Lifetime @ 105°C | 3000 Hrs (standard) / 5000 Hrs (extended) |
Substitute Part Grouping Explanation
Substitution for the ECO-S2WB331EA is determined by strict equivalence across the following parameters:
- Capacitance Value: 330 µF (exact match required)
- Voltage Rating: 450 V (exact match required)
- Tolerance: ±20% (exact match required)
- Package Configuration: Radial, Can - Snap-In (exact match required)
- Lead Spacing: 0.394" (10.00 mm) (exact match required)
- Mounting Type: Through Hole (exact match required)
- Operating Temperature Range: -25°C to 105°C (exact match required)
- Polarization: Polar (exact match required)
All substitute parts listed meet these core electrical and mechanical parameters. Variations in physical dimensions (can diameter and height), ESR characteristics, ripple current ratings, and lifetime specifications are secondary considerations that do not prevent functional substitution when the primary parameters align.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Series | Capacitance | Voltage | Tolerance | Lead Spacing | Can Diameter | Height (Max) | Lifetime @ 105°C | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| ECO-S2WB331EA | Panasonic | TS-HB | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.575" (40.00 mm) | 3000 Hrs | Obsolete |
| 381LX331M450A042 | Cornell Dubilier Electronics | 381LX | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.654" (42.00 mm) | 3000 Hrs | Active |
| 450HXG330MEFC35X35 | Rubycon | HXG | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.457" (37.00 mm) | 3000 Hrs | Active |
| 450MXK330MEFC35X25 | Rubycon | MXK | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.063" (27.00 mm) | 3000 Hrs | Active |
| 450VXG330MEFC35X35 | Rubycon | VXG | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.457" (37.00 mm) | 5000 Hrs | Active |
| 450VXG330MEFCSN35X35 | Rubycon | VXG | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.457" (37.00 mm) | 5000 Hrs | Active |
| 450VXH330MEFC35X30 | Rubycon | VXH | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.260" (32.00 mm) | 5000 Hrs | Active |
| 450VXH330MEFCSN35X30 | Rubycon | VXH | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.260" (32.00 mm) | 5000 Hrs | Active |
| 450VXK330MEFCSN35X30 | Rubycon | VXK | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.260" (32.00 mm) | 5000 Hrs | Active |
| EKMT451VSN331MA35S | Chemi-Con | KMT | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.476" (37.50 mm) | 3000 Hrs | Active |
| LGN2W331MELC35 | Nichicon | LGN | 330 µF | 450 V | ±20% | 0.394" (10.00 mm) | 1.378" (35.00 mm) | 1.457" (37.00 mm) | 3000 Hrs | Active |
Engineering Selection Recommendations
All listed substitute parts are active production components from established manufacturers, providing continuity for applications currently using the obsolete ECO-S2WB331EA. Selection among substitutes should be based on the following criteria:
Compliance and Regulatory Status: Parts with ROHS3 compliance include 381LX331M450A042, 450HXG330MEFC35X35, 450MXK330MEFC35X25, 450VXG330MEFCSN35X35, 450VXH330MEFC35X30, 450VXH330MEFCSN35X30, 450VXK330MEFCSN35X30, and LGN2W331MELC35. The 450VXG330MEFC35X35 is RoHS non-compliant. EKMT451VSN331MA35S is RoHS Compliant. All parts are REACH Unaffected except the original ECO-S2WB331EA, which is REACH Affected.
Lifetime Specifications: Parts rated for 3000 hours at 105°C include 381LX331M450A042, 450HXG330MEFC35X35, 450MXK330MEFC35X25, EKMT451VSN331MA35S, and LGN2W331MELC35. Extended lifetime parts rated for 5000 hours at 105°C include 450VXG330MEFC35X35, 450VXG330MEFCSN35X35, 450VXH330MEFC35X30, 450VXH330MEFCSN35X30, and 450VXK330MEFCSN35X30.
Physical Dimensions: Height variations range from 1.063" (27.00 mm) for 450MXK330MEFC35X25 to 1.654" (42.00 mm) for 381LX331M450A042. Space-constrained applications should prioritize the compact 450MXK330MEFC35X25 or the 450VXH series (1.260" height). Standard height options include 450HXG330MEFC35X35, 450VXG330MEFCSN35X35, and LGN2W331MELC35 at 1.457" (37.00 mm).
Inventory Availability: High-volume availability exists for 450HXG330MEFC35X35 (273,782 pcs), 450VXG330MEFCSN35X35 (656,750 pcs), 450VXK330MEFCSN35X30 (273,782 pcs), and LGN2W331MELC35 (273,982 pcs).
Frequently Asked Questions (FAQ)
Q: Can I use any of these substitute parts as a direct replacement for the ECO-S2WB331EA?
A: Yes. All listed parts meet the core electrical and mechanical specifications: 330 µF capacitance, 450 V voltage rating, ±20% tolerance, radial snap-in package, 10.00 mm lead spacing, and through-hole mounting. Physical dimensions vary, so verify that the can height fits within your available board space before installation.
Q: What is the difference between 3000-hour and 5000-hour lifetime ratings?
A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches the tolerance limit. The 5000-hour parts (Rubycon VXG, VXH, and VXK series) provide extended service life compared to 3000-hour alternatives. Selection depends on application duty cycle and expected system lifespan.
Q: Are there height restrictions I should consider?
A: Yes. The 450MXK330MEFC35X25 is the most compact at 1.063" (27.00 mm) height. The Rubycon VXH and VXK series offer moderate height at 1.260" (32.00 mm). Standard height options range from 1.378" to 1.654" (35.00 to 42.00 mm). Verify clearance in your PCB layout before selection.
Q: What is the significance of RoHS compliance?
A: RoHS3 compliance indicates the part meets European Union restrictions on hazardous substances. For applications subject to RoHS requirements, select from the compliant options listed. The 450VXG330MEFC35X35 is RoHS non-compliant and should not be used in regulated applications.
Q: Do all substitute parts have the same ripple current rating?
A: No. Ripple current ratings vary by manufacturer and series. The ECO-S2WB331EA specifies 1.38 A at 120 Hz and 1.573 A at 100 kHz. Substitute parts range from 1.38 A to 2.33 A at 120 Hz. Verify ripple current specifications match your application's AC current requirements.
Q: Which substitute offers the best availability?
A: The 450VXG330MEFCSN35X35 (Rubycon VXG series) has the highest inventory at 656,750 pieces. The 450VXK330MEFCSN35X30 and LGN2W331MELC35 also offer strong availability at 273,782 and 273,982 pieces respectively.
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