Equivalent & Substitute Parts for URS1A331MPD1TD

Part Overview

The URS1A331MPD1TD is a 330 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, serving general-purpose applications requiring stable capacitance and ripple current handling.

Substiute Parts

URS1A331MPD1TD

NichiconIn Stock: 856URS1A331MPD1TD Datasheet

Current PartRFQ

25ZLJ330M8X11.5

RubyconIn Stock: 7594225ZLJ330M8X11.5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the URS1A331MPD1TD is determined by the following criteria:

• Capacitance Value: Must be 330 µF (exact match required)
• Tolerance: Must be ±20% or tighter
• Package Configuration: Must be radial, can, through-hole mounting
• Lead Spacing: Must be 0.138" (4.60 mm)
• Physical Dimensions: Diameter 0.315" (8.00 mm); height may vary within mechanical constraints
• Polarization: Must be polar (electrolytic)

The substitute part 25ZLJ330M8X11.5 from Rubycon meets these core substitution criteria. While the rated voltage is higher (25 V versus 10 V) and the lifetime specification exceeds the original part, these represent improvements in performance margin and reliability rather than incompatibilities. The physical footprint and electrical capacitance remain compatible with the original design intent.

Parameter Comparison

Engineering Selection Recommendations

The 25ZLJ330M8X11.5 substitute part is suitable for applications currently using the URS1A331MPD1TD. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. The substitute part offers enhanced performance characteristics: higher voltage rating (25 V provides additional safety margin in 10 V circuits), extended operating temperature range (105°C versus 85°C), and significantly longer lifetime specification (9000 hours at 105°C versus 2000 hours at 85°C).

The primary design consideration is the increased height dimension (0.512" versus 0.413"), which must be verified against available PCB clearance. Lead spacing and diameter remain identical, ensuring footprint compatibility. The substitute part's active product status provides ongoing availability and supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the 25ZLJ330M8X11.5 be used as a direct replacement for the URS1A331MPD1TD?

A: Yes, provided PCB clearance accommodates the increased height of 0.512" (13.00 mm) versus the original 0.413" (10.50 mm). All other mechanical and electrical parameters are compatible.

Q: Why is the voltage rating higher on the substitute part?

A: The 25 V rating on the substitute part does not create incompatibility with 10 V circuit applications. Higher voltage-rated capacitors operate safely in lower-voltage circuits and provide additional performance margin.

Q: Are there any compliance differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: What is the significance of the different lifetime specifications?

A: The substitute part specifies 9000 hours at 105°C versus 2000 hours at 85°C for the original. This represents improved reliability and extended operational life, particularly in elevated-temperature environments.

Q: Does the lead spacing remain the same?

A: Yes. Both parts maintain 0.138" (4.60 mm) lead spacing and 0.315" (8.00 mm) diameter, ensuring identical PCB footprint compatibility.

Q: What should be verified before implementing this substitution?

A: Verify available vertical clearance on the PCB to accommodate the 0.512" maximum seated height. Confirm that the circuit voltage and thermal operating conditions do not exceed the substitute part's ratings.