UCS2W270MND9 Equivalent & Substitute Parts

Part Overview

The UCS2W270MND9 is a 27 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 10000 hours at 105°C and is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained within the allowed parameter tolerances for this product category.

Substiute Parts

UCS2W270MND9

NichiconIn Stock: 803UCS2W270MND9 Datasheet

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UPT2W270MHD

NichiconIn Stock: 1477UPT2W270MHD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by matching the following critical parameters:

• Capacitance Value: Must be identical (27 µF)
• Voltage Rating: Must be equal or greater (450 V minimum)
• Tolerance: Must be within ±20%
• Polarization: Must be Polar
• Lead Spacing: Must be 0.197" (5.00mm) for PCB compatibility
• Mounting Type: Must be Through Hole
• Package Type: Must be Radial, Can
• Operating Temperature Range: Must support -25°C ~ 105°C
• RoHS Compliance: Must maintain ROHS3 status

The UPT2W270MHD meets all these criteria and is therefore qualified as a direct substitute. Differences in lifetime rating (5000 Hrs vs. 10000 Hrs @ 105°C) and ripple current specifications do not disqualify substitution when the application does not mandate the extended lifetime of the primary part.

Parameter Comparison

Engineering Selection Recommendations

Both UCS2W270MND9 and UPT2W270MHD are Active status components manufactured by Nichicon and maintain ROHS3 compliance. Selection between these parts depends on application-specific requirements:

The UCS2W270MND9 provides extended operational lifetime (10000 hours at 105°C) and higher ripple current capacity, making it suitable for applications requiring long-term reliability and higher thermal stress conditions.

The UPT2W270MHD offers a more compact form factor with reduced height (1.299" vs. 1.654") while maintaining identical electrical ratings. This substitute is appropriate for space-constrained designs where the reduced lifetime rating (5000 hours at 105°C) and lower ripple current specifications align with application demands.

Both parts share identical lead spacing (5.00mm), enabling direct PCB footprint compatibility when dimensional constraints permit the larger diameter of the UPT2W270MHD (12.50mm vs. 10.00mm).

Frequently Asked Questions (FAQ)

Q: Can UPT2W270MHD replace UCS2W270MND9 in any application?

A: Electrical substitution is valid when the application does not require the extended 10000-hour lifetime rating of the UCS2W270MND9. The UPT2W270MHD maintains identical capacitance, voltage rating, tolerance, and operating temperature range. Verify that the larger physical dimensions (12.50mm diameter, 33.00mm height) fit within available PCB space.

Q: What is the impact of different ripple current ratings?

A: Ripple current specifications indicate the maximum AC current the capacitor can handle without exceeding temperature limits. The UCS2W270MND9 supports higher ripple current (580 mA @ 100 kHz) compared to the UPT2W270MHD (400 mA @ 10 kHz). Applications with high AC ripple content should use the primary part or confirm that actual ripple current does not exceed the substitute's rating.

Q: Are the lead spacings identical?

A: Yes. Both parts have 0.197" (5.00mm) lead spacing, ensuring PCB footprint compatibility. However, the different can diameters (10.00mm vs. 12.50mm) may affect component placement density.

Q: Do both parts meet current compliance requirements?

A: Both UCS2W270MND9 and UPT2W270MHD are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the primary difference between these two capacitors?

A: The main differences are lifetime rating (10000 Hrs vs. 5000 Hrs @ 105°C), physical dimensions, and ripple current capacity. Electrical specifications (capacitance, voltage, tolerance, temperature range) are identical.