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ECO-S1HA182BA Equivalent & Substitute Parts
Part Overview
The ECO-S1HA182BA is a 1800 µF, 50 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This part operates across -40°C to 105°C with a rated lifetime of 3000 hours at 105°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 1800 µF |
| Voltage Rating | 50 V |
| Tolerance | ±20% |
| Package Type | Radial, Can - Snap-In |
| Lead Spacing | 0.394" (10.00 mm) |
| Case Diameter | 0.866" (22.00 mm) |
| Height (Seated Max) | 1.063" (27.00 mm) |
| Mounting Type | Through Hole |
| Operating Temperature Range | -40°C to 105°C |
| Lifetime @ 105°C | 3000 Hours minimum |
| Polarization | Polar |
| Application | General Purpose |
Substitute Part Grouping Explanation
Substitution eligibility for the ECO-S1HA182BA is determined by strict equivalence across the following parameters:
- Capacitance: 1800 µF (exact match required)
- Voltage Rating: 50 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)
- Case Diameter: 0.866" (22.00 mm) (exact match required)
- Mounting Type: Through Hole (exact match required)
- Operating Temperature Range: -40°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 ESR, ripple current ratings, and lifetime specifications do not disqualify parts from substitution but indicate performance differences within acceptable operating ranges.
Parameter Comparison
| Parameter | ECO-S1HA182BA (Panasonic) | 381LX182M050H012 (CDE) | SLP182M050A1P3 (CDE) | LGY1H182MELZ25 (Nichicon) | LGU1H182MELZ (Nichicon) |
|---|---|---|---|---|---|
| Capacitance | 1800 µF | 1800 µF | 1800 µF | 1800 µF | 1800 µF |
| Voltage Rating | 50 V | 50 V | 50 V | 50 V | 50 V |
| Tolerance | ±20% | ±20% | ±20% | ±20% | ±20% |
| Case Diameter | 0.866" (22.00 mm) | 0.866" (22.00 mm) | 0.866" (22.00 mm) | 0.866" (22.00 mm) | 0.866" (22.00 mm) |
| Height (Seated Max) | 1.063" (27.00 mm) | 1.063" (27.00 mm) | 0.984" (25.00 mm) | 1.063" (27.00 mm) | 1.063" (27.00 mm) |
| Lead Spacing | 0.394" (10.00 mm) | 0.394" (10.00 mm) | 0.394" (10.00 mm) | 0.394" (10.00 mm) | 0.394" (10.00 mm) |
| Package Type | Radial, Can - Snap-In | Radial, Can - Snap-In | Radial, Can - Snap-In | Radial, Can - Snap-In | Radial, Can - Snap-In |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C to 105°C | -40°C to 105°C | -40°C to 105°C | -40°C to 105°C | -40°C to 105°C |
| Lifetime @ 105°C | 3000 Hrs | 3000 Hrs | 3000 Hrs | 5000 Hrs | 3000 Hrs |
| ESR @ 120 Hz | 129 mOhm | Not specified | 258 mOhm | Not specified | Not specified |
| Ripple Current @ 120 Hz | 1.5 A | 1.5 A | 1.5 A | 1.3 A | 1.34 A |
| Product Status | Obsolete | Active | Active | Active | Active |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
All four substitute parts are electrically and mechanically compatible with the ECO-S1HA182BA. Selection should be based on the following criteria:
Active Product Status: All substitute parts carry active product status from their respective manufacturers (Cornell Dubilier Electronics and Nichicon), ensuring long-term availability and supply chain continuity compared to the obsolete Panasonic part.
Regulatory Compliance: All substitute parts are ROHS3 compliant and carry REACH unaffected status, meeting current environmental and regulatory requirements. The original Panasonic part is REACH affected, which may present compliance challenges in new designs.
Mechanical Fit: SLP182M050A1P3 has a reduced seated height of 0.984" (25.00 mm) compared to the original 1.063" (27.00 mm). This part is suitable only if PCB layout permits the reduced height. The remaining three substitutes maintain the original height specification.
Performance Characteristics: LGY1H182MELZ25 offers extended lifetime of 5000 hours at 105°C versus the 3000-hour specification of the original part, providing enhanced reliability for long-life applications. All other substitutes maintain the 3000-hour lifetime rating.
Inventory Availability: CDE 381LX182M050H012 offers the highest stock level (4040 units), followed by Nichicon LGU1H182MELZ (898 units), Nichicon LGY1H182MELZ25 (731 units), and CDE SLP182M050A1P3 (807 units).
Frequently Asked Questions (FAQ)
Q: Can SLP182M050A1P3 be used as a direct replacement despite its reduced height?
A: SLP182M050A1P3 is electrically equivalent and mechanically compatible in terms of lead spacing, case diameter, and mounting type. However, its seated height of 0.984" (25.00 mm) is 0.079" (2.00 mm) shorter than the original specification of 1.063" (27.00 mm). This part is suitable only if the PCB layout and component clearances accommodate the reduced height. Verify board design constraints before selection.
Q: What is the difference between the two Nichicon options, LGY1H182MELZ25 and LGU1H182MELZ?
A: Both parts are mechanically and electrically identical with matching capacitance, voltage, tolerance, and package specifications. The primary difference is lifetime rating: LGY1H182MELZ25 is rated for 5000 hours at 105°C, while LGU1H182MELZ is rated for 3000 hours at 105°C. Select LGY1H182MELZ25 for applications requiring extended operational life.
Q: Are all substitute parts RoHS compliant?
A: Yes. All four substitute parts are ROHS3 compliant. The original ECO-S1HA182BA does not specify RoHS status. For designs requiring RoHS compliance, any of the four substitutes are acceptable.
Q: What does "REACH Unaffected" mean for the substitute parts?
A: REACH Unaffected status indicates that the substitute parts do not contain substances of very high concern (SVHC) listed under the EU REACH regulation. The original Panasonic part is marked as REACH Affected, meaning it may contain listed substances. For applications subject to REACH requirements, the substitute parts provide regulatory advantage.
Q: Can I mix different substitute parts in the same design?
A: Yes. All substitute parts meet the core electrical and mechanical parameters of the original part. However, for consistency in production and testing, it is recommended to standardize on a single substitute part number per design revision.
Q: Which substitute part should I select for new designs?
A: For new designs, select based on specific application requirements: choose 381LX182M050H012 for maximum availability, LGY1H182MELZ25 for extended lifetime applications, or either Nichicon part for established supplier relationships. Verify that selected part meets all design constraints including PCB layout, thermal requirements, and compliance certifications.
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