TVX1V331MCD Equivalent & Substitute Parts

Part Overview

The TVX1V331MCD is a 330 µF, 35 V aluminum electrolytic capacitor in axial configuration manufactured by Nichicon. This component is classified as obsolete, making identification of suitable substitutes necessary 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

TVX1V331MCD

NichiconIn Stock: 932TVX1V331MCD Datasheet

Current PartRFQ

337TTA050M

Cornell Dubilier / Illinois CapacitorIn Stock: 1448337TTA050M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TVX1V331MCD is determined by the following critical parameters:

• Capacitance Value: 330 µF (exact match required)
• Tolerance: ±20% (must match or be tighter)
• Voltage Rating: Minimum 35 V (equal or higher voltage rating is acceptable)
• Package Configuration: Axial, Can through-hole mounting (physical and electrical compatibility)
• Operating Temperature Range: -40°C to 85°C minimum (must support full range)
• Lifetime Specification: 2000 Hrs @ 85°C (must meet or exceed)

The substitute part 337TTA050M meets all substitution criteria. It maintains identical capacitance and tolerance specifications, provides a higher voltage rating (50 V), supports the same operating temperature range, and meets the lifetime requirement. The increased voltage rating provides additional design margin without compromising circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

The 337TTA050M is a direct functional substitute for the TVX1V331MCD based on the following engineering criteria:

Product Status: The TVX1V331MCD is obsolete, while the 337TTA050M is active, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both parts maintain identical capacitance (330 µF) and tolerance (±20%). The 337TTA050M provides a higher voltage rating (50 V versus 35 V), which is acceptable in substitution and provides additional design margin without affecting circuit operation at the original 35 V specification.

Thermal and Lifetime Performance: Both parts support the same operating temperature range (-40°C to 85°C) and meet the 2000-hour lifetime requirement at 85°C.

Compliance: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Physical Considerations: The 337TTA050M has a slightly increased axial length (1.024" versus 0.906"), which must be accommodated in the PCB layout. The diameter remains identical at 0.394".

Frequently Asked Questions (FAQ)

Q: Can the 337TTA050M replace the TVX1V331MCD in existing designs?

A: Yes. The 337TTA050M is electrically compatible as a direct substitute. The primary design consideration is the increased axial length (3 mm longer), which requires verification of available PCB space. The higher voltage rating (50 V) does not negatively impact circuit performance at the original 35 V operating point.

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

A: The 337TTA050M is rated for 50 V, compared to the original 35 V specification. Higher voltage-rated capacitors are acceptable substitutes in applications requiring lower voltages, as they provide additional design margin and reliability. This does not affect circuit functionality.

Q: Are there any ripple current differences to consider?

A: The 337TTA050M exhibits higher ripple current capability at both low frequency (565 mA @ 120 Hz versus 460 mA) and high frequency (779.7 mA @ 50 kHz versus 690 mA @ 10 kHz). This represents improved performance and does not create compatibility issues.

Q: What is the impact of the increased physical length?

A: The 337TTA050M is 3 mm longer (26 mm versus 23 mm total length). PCB layout must accommodate this dimension. The diameter remains unchanged at 10 mm. Physical clearance verification is required before implementation.

Q: Are both parts compliant with current regulations?

A: Yes. Both the TVX1V331MCD and 337TTA050M are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the ESR difference between the parts?

A: The 337TTA050M specifies an ESR of 602.9 mOhm @ 120 Hz. The TVX1V331MCD does not provide ESR specification in the available data. The specified ESR of the substitute part is typical for aluminum electrolytic capacitors of this class and does not indicate incompatibility.