Equivalent & Substitute Parts for UCZ1H330MCS6GS

Part Overview

The UCZ1H330MCS6GS is a 33 µF, 50 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Nichicon. This component is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. Organizations using this part in existing designs or maintenance applications require equivalent alternatives that maintain electrical and mechanical compatibility while potentially offering improved availability or updated product status.

Substiute Parts

UCZ1H330MCS6GS

NichiconIn Stock: 5579UCZ1H330MCS6GS Datasheet

Current PartRFQ

UCZ1H330MCL6GS

NichiconIn Stock: 1797UCZ1H330MCL6GS Datasheet

DirectRFQ

50THV33M6.3X8

RubyconIn Stock: 82250THV33M6.3X8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UCZ1H330MCS6GS is determined by the following mandatory parameters:

• Capacitance: 33 µF (exact match required)
• Voltage Rating: 50 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - SMD (exact match required)
• Case Diameter: 6.30 mm (exact match required)
• Land Size: 6.60 mm × 6.60 mm (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• Polarization: Polar (exact match required)

The following parameters may vary within acceptable engineering limits:

• ESR @ 100 kHz: Acceptable range 500–900 mOhm
• Maximum Height: Acceptable range 8.00–8.20 mm
• Ripple Current: May vary based on ESR characteristics
• Product Status: Active or Not For New Designs
• Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters align

Parameter Comparison

Engineering Selection Recommendations

UCZ1H330MCL6GS (Nichicon): This part maintains identical electrical specifications to the main part, including 500 mOhm ESR and 2000 hour lifetime at 125°C. The maximum height difference of 0.20 mm (8.20 mm versus 8.00 mm) remains within typical PCB design tolerances for surface mount components. Both parts share the same product status classification. This substitute is suitable for direct replacement in existing designs where Nichicon UCZ series continuity is preferred.

50THV33M6.3X8 (Rubycon): This part meets all mandatory electrical and mechanical parameters with the exception of ESR, which is specified at 900 mOhm compared to 500 mOhm for the main part. The higher ESR may result in increased heat dissipation and voltage ripple in high-frequency applications. This part carries Active product status and includes AEC-Q200 automotive qualification, making it suitable for applications requiring current manufacturer support or automotive-grade reliability. Selection of this substitute requires confirmation that the higher ESR is acceptable for the target application.

Frequently Asked Questions (FAQ)

Q: Can UCZ1H330MCL6GS be used as a direct replacement for UCZ1H330MCS6GS?

A: Yes. Both parts are manufactured by Nichicon, share identical capacitance, voltage, tolerance, ESR, and lifetime specifications. The 0.20 mm height difference falls within standard PCB design clearances for surface mount applications.

Q: What is the significance of the ESR difference between UCZ1H330MCS6GS and 50THV33M6.3X8?

A: The 50THV33M6.3X8 has 900 mOhm ESR compared to 500 mOhm for the main part. Higher ESR increases impedance at high frequencies and generates more heat under ripple current conditions. Applications with stringent ripple current or thermal constraints should evaluate this parameter against circuit requirements.

Q: Why is 50THV33M6.3X8 listed as Active while the main part is Not For New Designs?

A: Product status reflects manufacturer lifecycle positioning. The Rubycon 50THV33M6.3X8 remains in active production with current manufacturer support, while the Nichicon UCZ1H330MCS6GS has been superseded. For new designs, the active status part may offer better long-term availability.

Q: Are all three parts mechanically interchangeable on the same PCB footprint?

A: Yes. All three parts share identical case diameter (6.30 mm), land size (6.60 mm × 6.60 mm), and mounting type (surface mount). The maximum height variation of 0.20 mm between parts does not affect standard PCB design clearances.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All three parts are ROHS3 compliant, carry MSL rating 1 (Unlimited), and are REACH unaffected. The 50THV33M6.3X8 additionally carries AEC-Q200 automotive qualification.