Equivalent & Substitute Parts for LLS2E221MELY

Part Overview

The LLS2E221MELY is a 220 µF, 250 V aluminum electrolytic capacitor manufactured by Nichicon in the LLS series. This radial, can-style snap-in capacitor is rated for 3000 hours at 85°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate inventory availability across manufacturing environments.

Substiute Parts

LLS2E221MELY

NichiconIn Stock: 1002LLS2E221MELY Datasheet

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LLS2E221MELZ

NichiconIn Stock: 3678LLS2E221MELZ Datasheet

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SLPX221M250A1P3

Cornell Dubilier Electronics (CDE)In Stock: 1225SLPX221M250A1P3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LLS2E221MELY are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 220 µF (exact match required)
• Voltage Rating: 250 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 3000 Hrs @ 85°C (exact match required)
• Operating Temperature: -40°C ~ 85°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The following parts meet all substitution criteria and are qualified as direct equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three parts—LLS2E221MELY, LLS2E221MELZ, and SLPX221M250A1P3—are qualified substitutes based on matching electrical specifications, mechanical compatibility, and regulatory compliance. Selection among these parts should be based on:

Availability and Inventory: LLS2E221MELZ (Nichicon) has the highest inventory level at 3596 pieces, followed by SLPX221M250A1P3 (CDE) at 1142 pieces, and LLS2E221MELY at 985 pieces.

Manufacturer Continuity: Both Nichicon parts (LLS2E221MELY and LLS2E221MELZ) belong to the same LLS series and manufacturer, providing design consistency. The CDE part (SLPX221M250A1P3) represents an alternative manufacturer option.

Physical Dimensions: The LLS2E221MELY has a smaller can diameter (0.787" / 20.00mm) compared to both substitute parts (0.866" / 22.00mm). PCB layout and mechanical clearance must be verified if switching from the original part to either substitute.

Regulatory Compliance: All parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can LLS2E221MELZ be used as a direct replacement for LLS2E221MELY?

A: Yes. Both parts share identical electrical specifications (220 µF, 250 V, ±20%, 3000 Hrs @ 85°C), operating temperature range, polarization, and mounting configuration. The primary difference is can diameter: LLS2E221MELZ measures 0.866" (22.00mm) versus 0.787" (20.00mm) for LLS2E221MELY. PCB layout must accommodate the larger diameter.

Q: What are the key differences between Nichicon LLS parts and the CDE SLPX part?

A: All three parts meet the same electrical and mechanical requirements. The SLPX221M250A1P3 is manufactured by Cornell Dubilier Electronics rather than Nichicon. Ripple current specifications at high frequency differ slightly: SLPX221M250A1P3 is rated at 1.82 A @ 20 kHz, while LLS parts are rated at higher frequencies (50 kHz). Physical dimensions are identical between the two substitute parts.

Q: Are there any PCB layout considerations when substituting these parts?

A: Yes. The original LLS2E221MELY has a can diameter of 0.787" (20.00mm), while both substitute parts measure 0.866" (22.00mm). If switching to either LLS2E221MELZ or SLPX221M250A1P3, verify that PCB layout provides adequate clearance around the capacitor footprint. Lead spacing remains constant at 0.394" (10.00mm) across all three parts.

Q: Do all three parts meet current regulatory requirements?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: Which part should be selected for new designs?

A: Selection depends on supply chain strategy and availability. For Nichicon continuity, either LLS2E221MELY or LLS2E221MELZ is appropriate. For multi-source qualification, SLPX221M250A1P3 provides an alternative manufacturer option. All three parts are electrically and mechanically equivalent within the specified parameters.