UPZ2G121MHD Equivalent & Substitute Parts

Part Overview

The UPZ2G121MHD is a 120 µF, 400 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Active product status and is designed for general purpose applications requiring polarized capacitive energy storage at elevated voltage levels. The UPZ series offers a rated lifetime of 2000 hours at 105°C operating temperature. Substitute parts become necessary when addressing inventory constraints, extended lifecycle requirements, or specific compliance certifications for production environments.

Substiute Parts

UPZ2G121MHD

NichiconIn Stock: 739UPZ2G121MHD Datasheet

Current PartRFQ

UCP2G121MHD

NichiconIn Stock: 273806UCP2G121MHD Datasheet

DirectRFQ

400BXW120MEFR16X35

RubyconIn Stock: 1828400BXW120MEFR16X35 Datasheet

DirectRFQ

EPAG401ELL121ML35S

Chemi-ConIn Stock: 775EPAG401ELL121ML35S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UPZ2G121MHD is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 120 µF (exact match required)
• Rated Voltage: 400 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package / Case: Radial, Can (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.295" (7.50mm) (exact match required)
• Size / Dimension: 0.630" Dia (16.00mm) (exact match required)

All three substitute parts meet these core electrical and mechanical compatibility criteria. Variations in lifetime rating, ripple current specifications, operating temperature range, and manufacturer compliance certifications do not affect functional interchangeability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain Active product status and are suitable for direct substitution based on electrical and mechanical parameters. Selection between alternatives should be based on the following compliance and availability factors:

UCP2G121MHD (Nichicon): Extended lifetime rating of 10000 hours at 105°C provides enhanced reliability margin. REACH Unaffected status simplifies supply chain compliance. Identical manufacturer to primary part ensures consistent performance characteristics.

400BXW120MEFR16X35 (Rubycon): Highest lifetime rating of 12000 hours at 105°C and extended operating temperature range (-40°C to 105°C) support demanding thermal environments. REACH Unaffected status and ROHS3 compliance meet stringent regulatory requirements.

EPAG401ELL121ML35S (Chemi-Con): Matches primary part lifetime specification of 2000 hours at 105°C. Extended operating temperature range (-40°C to 105°C) provides additional thermal flexibility. MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can UCP2G121MHD replace UPZ2G121MHD in existing designs?

A: Yes. Both parts share identical capacitance (120 µF), voltage rating (400 V), tolerance (±20%), package configuration (Radial, Can), lead spacing (0.295" / 7.50mm), and physical dimensions (0.630" Dia / 16.00mm). The UCP2G121MHD offers extended lifetime (10000 hours vs. 2000 hours at 105°C) without affecting electrical compatibility.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant designations?

A: ROHS3 Compliant indicates compliance with the third iteration of the Restriction of Hazardous Substances directive, incorporating the most current restricted substance list. RoHS Compliant indicates general RoHS compliance without specifying the directive version. Both designations confirm absence of prohibited hazardous materials.

Q: Are there physical mounting differences between substitute parts?

A: No. All substitute parts maintain identical lead spacing (0.295" / 7.50mm) and can diameter (0.630" / 16.00mm). Height variations (UPZ2G121MHD and UCP2G121MHD at 1.476" / 37.50mm versus 400BXW120MEFR16X35 and EPAG401ELL121ML35S at 1.457" / 37.00mm) are within standard manufacturing tolerances and do not affect PCB layout compatibility for through-hole mounting.

Q: Which substitute part is recommended for high-temperature applications?

A: 400BXW120MEFR16X35 and EPAG401ELL121ML35S both support extended operating temperature range of -40°C to 105°C compared to the primary part's -25°C to 105°C range. The 400BXW120MEFR16X35 additionally provides the highest lifetime rating (12000 hours at 105°C) for sustained high-temperature operation.

Q: Does REACH Affected status on UPZ2G121MHD affect substitution decisions?

A: REACH Affected status indicates the part contains substances subject to REACH registration requirements. All substitute parts carry REACH Unaffected status, simplifying regulatory compliance for supply chains with strict REACH requirements. Substitution is recommended when REACH compliance is a procurement criterion.