UHD1H331MPD1TD Equivalent & Substitute Parts

Part Overview

The UHD1H331MPD1TD is a 330 µF, 50 V aluminum electrolytic capacitor manufactured by Nichicon in radial, can package configuration. This component is rated for general purpose applications with a lifetime specification of 4000 hours at 105°C operating temperature. The part carries a "Not For New Designs" product status, indicating that Nichicon has discontinued active development and support for this series. Finding equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturer support and improved specifications where applicable.

Substiute Parts

UHD1H331MPD1TD

NichiconIn Stock: 873UHD1H331MPD1TD Datasheet

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ELXZ500ETD331MJ25S

Chemi-ConIn Stock: 1091ELXZ500ETD331MJ25S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UHD1H331MPD1TD is determined by strict equivalence across the following parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 50 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package configuration: Radial, Can (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 0.197" (5.00 mm) (exact match required)
• Physical diameter: 0.394" (10.00 mm) (exact match required)

The ELXZ500ETD331MJ25S from Chemi-Con meets all mandatory substitution criteria. Additional parameters such as lifetime rating, operating temperature range, ripple current specifications, and impedance may vary between the main part and substitute, but do not disqualify substitution when the core electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

The ELXZ500ETD331MJ25S qualifies as a direct substitute for the UHD1H331MPD1TD based on matching electrical and mechanical specifications. The Chemi-Con part carries an "Active" product status, ensuring ongoing manufacturer support and supply chain availability. Both components are ROHS3 compliant. The substitute part offers an extended lifetime rating of 5000 hours at 105°C compared to the original 4000 hours, and an expanded operating temperature range of -55°C to 105°C. The substitute part is rated for automotive applications with AEC-Q200 certification. Physical height differs by 0.020" (0.50 mm), which remains within typical PCB layout tolerances for through-hole radial capacitors.

Frequently Asked Questions (FAQ)

Q: Can the ELXZ500ETD331MJ25S be used as a direct replacement for the UHD1H331MPD1TD?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (50 V), tolerance (±20%), package configuration (radial can), mounting type (through hole), lead spacing (5.00 mm), and physical diameter (10.00 mm). These parameters determine mechanical and electrical compatibility in the circuit.

Q: What is the significance of the "Not For New Designs" status on the original part?

A: This designation indicates that Nichicon has ended active support for the UHD series. The substitute part from Chemi-Con carries "Active" status, meaning the manufacturer continues to produce, support, and improve the component.

Q: Does the 0.020" height difference affect PCB layout?

A: No. The height difference of 0.020" (0.50 mm) between the seated heights is negligible for through-hole radial capacitor applications and does not require PCB redesign.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The substitute part is REACH Unaffected, while the original is REACH Affected. The substitute also carries AEC-Q200 automotive certification, indicating qualification for automotive-grade reliability standards.

Q: What packaging format differences exist?

A: The original part is supplied in Cut Tape (CT) packaging. The substitute is supplied in Tape & Reel (TR) packaging, which is standard for higher-volume production environments.