ULD2E4R7MPD Equivalent & Substitute Parts

Part Overview

The ULD2E4R7MPD is a 4.7 µF, 250 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 12000 hours at 105°C operating temperature and is designed for general purpose applications requiring polar capacitance with ±20% tolerance. The product status is obsolete, necessitating identification of functionally equivalent alternatives for ongoing procurement and system maintenance.

Substiute Parts

ULD2E4R7MPD

NichiconIn Stock: 977ULD2E4R7MPD Datasheet

Current PartRFQ

UPW2E4R7MPD

NichiconIn Stock: 1147UPW2E4R7MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ULD2E4R7MPD is determined by the following critical parameters:

• Capacitance Value: 4.7 µF (exact match required)
• Voltage Rating: 250 V (minimum requirement; higher ratings acceptable)
• Polarization: Polar (mandatory for functional equivalence)
• Tolerance: ±20% (acceptable range for general purpose applications)
• Operating Temperature Range: -40°C ~ 105°C (minimum requirement)
• Package Type: Radial, Can through-hole configuration
• Lead Spacing and Physical Dimensions: Must accommodate PCB layout constraints

The UPW2E4R7MPD qualifies as a direct substitute based on matching capacitance, voltage rating, polarization, tolerance, operating temperature range, and package type. Physical dimension variations and reduced lifetime rating (5000 Hrs @ 105°C versus 12000 Hrs @ 105°C) are secondary considerations dependent on application requirements.

Parameter Comparison

Engineering Selection Recommendations

The UPW2E4R7MPD is electrically equivalent to the ULD2E4R7MPD for applications requiring 4.7 µF capacitance at 250 V with polar configuration. Both components maintain ROHS3 compliance and identical operating temperature specifications.

Selection between these parts depends on application-specific requirements:

• Lifetime Consideration: The ULD2E4R7MPD provides 12000 hours at 105°C, while the UPW2E4R7MPD provides 5000 hours at the same temperature. Applications requiring extended operational life should prioritize the ULD series where available.

• Physical Space Constraints: The UPW2E4R7MPD has larger physical dimensions (0.394" diameter, 12.50mm height) and different lead spacing (5.00mm) compared to the ULD2E4R7MPD (0.315" diameter, 11.00mm height, 4.60mm lead spacing). PCB layout compatibility must be verified before substitution.

• Ripple Current Ratings: The ULD2E4R7MPD supports higher ripple current specifications (106 mA @ 100 kHz) compared to the UPW2E4R7MPD (80 mA @ 10 kHz). Applications with high AC ripple current should account for this difference.

Both components are obsolete; long-term availability should be confirmed with the manufacturer or authorized distributors.

Frequently Asked Questions (FAQ)

Q: Can the UPW2E4R7MPD directly replace the ULD2E4R7MPD on existing PCBs?

A: Electrical substitution is valid; however, physical dimensions and lead spacing differ. The UPW2E4R7MPD is larger (0.394" diameter versus 0.315" diameter) with 5.00mm lead spacing versus 4.60mm. PCB layout verification is required to confirm mechanical fit before implementation.

Q: What is the impact of the reduced lifetime rating in the UPW2E4R7MPD?

A: The UPW2E4R7MPD provides 5000 hours at 105°C compared to 12000 hours for the ULD2E4R7MPD. For applications operating continuously at elevated temperatures, this represents a 58% reduction in rated operational life. Application duty cycle and thermal environment must be evaluated to determine acceptability.

Q: Are both parts RoHS compliant?

A: Yes, both the ULD2E4R7MPD and UPW2E4R7MPD are ROHS3 compliant and REACH unaffected.

Q: What are the ripple current differences between these parts?

A: The ULD2E4R7MPD supports 106 mA at 100 kHz high frequency ripple current, while the UPW2E4R7MPD supports 80 mA at 10 kHz. Applications with high-frequency ripple current requirements should account for this specification difference.

Q: Are both parts still in production?

A: No, both the ULD2E4R7MPD and UPW2E4R7MPD are classified as obsolete. Availability is limited to existing inventory from authorized distributors.