UPT2G331MRD Equivalent & Substitute Parts

Part Overview

The UPT2G331MRD is a 330 µF, 400 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is designed for general purpose applications requiring through-hole mounting. The part is currently obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

UPT2G331MRD

NichiconIn Stock: 1271UPT2G331MRD Datasheet

Current PartRFQ

LDQ2G331MERAGA

NichiconIn Stock: 273956LDQ2G331MERAGA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UPT2G331MRD is determined by the following critical parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 400 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating temperature range: -25°C ~ 105°C (exact match required)
• Mounting type: Through hole radial can package (exact match required)
• Physical dimensions and lead spacing (must accommodate PCB layout)

The LDQ2G331MERAGA meets all electrical specifications and physical mounting requirements. While the lifetime rating differs (2000 Hrs @ 105°C versus 5000 Hrs @ 105°C), the substitute maintains identical capacitance, voltage, tolerance, temperature range, and through-hole radial can package configuration.

Parameter Comparison

Engineering Selection Recommendations

The LDQ2G331MERAGA is an active production substitute for the obsolete UPT2G331MRD. Both components are manufactured by Nichicon and maintain ROHS3 compliance and REACH unaffected status.

Key considerations for selection:

• Lead spacing differs: UPT2G331MRD uses 0.492" (12.50mm) spacing; LDQ2G331MERAGA uses 0.335" (8.50mm) spacing. PCB layout compatibility must be verified.
• Height differs: UPT2G331MRD is 2.047" (52.00mm); LDQ2G331MERAGA is 0.984" (25.00mm). Physical clearance requirements must be assessed.
• Lifetime rating: LDQ2G331MERAGA provides 2000 hours at 105°C versus 5000 hours for the original part. Application duty cycle and expected service life must be evaluated.
• Ripple current specifications differ at high frequency. Application ripple current requirements must be confirmed against the substitute's ratings.

Frequently Asked Questions (FAQ)

Q: Can the LDQ2G331MERAGA be used as a direct replacement for the UPT2G331MRD?

A: Electrical substitution is possible due to matching capacitance (330 µF), voltage rating (400 V), tolerance (±20%), and operating temperature range (-25°C ~ 105°C). However, physical substitution requires PCB layout verification due to differences in lead spacing (0.492" vs 0.335") and height (2.047" vs 0.984").

Q: What is the impact of the reduced lifetime rating on the substitute part?

A: The LDQ2G331MERAGA provides 2000 hours at 105°C compared to 5000 hours for the UPT2G331MRD. Application-specific duty cycles and expected operational life must be evaluated to determine acceptability.

Q: Are both parts RoHS compliant?

A: Yes, both the UPT2G331MRD and LDQ2G331MERAGA are ROHS3 compliant and REACH unaffected.

Q: What are the ripple current differences between these parts?

A: At 120 Hz, the UPT2G331MRD is rated for 1.4 A and the LDQ2G331MERAGA for 1.44 A. At high frequency, the UPT2G331MRD is rated for 2.24 A @ 10 kHz while the LDQ2G331MERAGA is rated for 2.0592 A @ 50 kHz. Application ripple current specifications must be confirmed against these ratings.

Q: Are there inventory considerations for these parts?

A: The UPT2G331MRD is obsolete with limited stock availability. The LDQ2G331MERAGA is in active production with substantial inventory available.