337LMX250M2CD Equivalent & Substitute Parts

Part Overview

The 337LMX250M2CD is a 330 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMX series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable performance across extended operating temperatures from -25°C to 105°C with a rated lifetime of 5000 hours at 105°C. The part is Active in product status and fully compliant with RoHS3 and REACH regulations. Equivalent substitute parts are identified based on matching critical electrical and mechanical parameters to ensure functional interchangeability in circuit applications.

Substiute Parts

337LMX250M2CD

Cornell Dubilier / Illinois CapacitorIn Stock: 865337LMX250M2CD Datasheet

Current PartRFQ

LGX2E331MELA25

NichiconIn Stock: 1369LGX2E331MELA25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 337LMX250M2CD are identified based on strict equivalence of the following critical parameters:

Electrical Parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 250 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime rating: 5000 Hrs @ 105°C (exact match required)
• Operating temperature range: -25°C to 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters:

• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Diameter: 0.984" (25.00 mm) (exact match required)
• Mounting type: Through Hole (exact match required)

Compliance Parameters:

• RoHS3 Compliant (required)
• REACH Unaffected (required)

Substitutes must satisfy all electrical, mechanical, and compliance criteria to ensure direct interchangeability without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

The LGX2E331MELA25 (Nichicon) is a direct functional equivalent to the 337LMX250M2CD (Cornell Dubilier) based on matching electrical specifications, mechanical dimensions, and regulatory compliance. Both parts are Active in product status and fully compliant with RoHS3 and REACH requirements.

Physical Compatibility Note: The LGX2E331MELA25 has a maximum seated height of 1.063" (27.00 mm), compared to 1.260" (32.00 mm) for the 337LMX250M2CD. This 5 mm height difference must be evaluated against available board clearance in the target application. The identical lead spacing (10.00 mm) and diameter (25.00 mm) ensure footprint compatibility on through-hole PCB layouts.

Performance Consideration: The LGX2E331MELA25 exhibits higher ripple current ratings at both 120 Hz (1.32 A vs. 1.2 A) and 50 kHz (1.98 A vs. 1.764 A), indicating equivalent or superior thermal performance characteristics within the specified operating temperature range.

Both parts satisfy the core substitution criteria: identical capacitance, voltage rating, tolerance, lifetime rating, operating temperature range, package type, lead spacing, and diameter.

Frequently Asked Questions (FAQ)

Q: Can the LGX2E331MELA25 be used as a direct replacement for the 337LMX250M2CD?

A: Yes, the LGX2E331MELA25 meets all critical electrical and mechanical substitution criteria. Both parts have identical capacitance (330 µF), voltage rating (250 V), tolerance (±20%), lifetime (5000 Hrs @ 105°C), operating temperature range (-25°C to 105°C), lead spacing (10.00 mm), and diameter (25.00 mm). The height difference of 5 mm must be verified against available board clearance.

Q: What is the significance of the height difference between these two parts?

A: The 337LMX250M2CD has a maximum seated height of 32.00 mm, while the LGX2E331MELA25 is 27.00 mm. This 5 mm difference is within typical PCB design tolerances for through-hole snap-in capacitors. Verify that the target application has sufficient clearance above the capacitor to accommodate the taller Cornell Dubilier part, or confirm that the shorter Nichicon part fits within space constraints.

Q: Are both parts RoHS3 and REACH compliant?

A: Yes, both the 337LMX250M2CD and LGX2E331MELA25 are RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What does the ±20% tolerance mean for capacitance?

A: The ±20% tolerance indicates that the actual capacitance value may vary between 264 µF and 396 µF from the nominal 330 µF specification. Both parts share this tolerance band, ensuring equivalent performance in general-purpose applications where this tolerance range is acceptable.

Q: Why is the ripple current rating different between the two parts?

A: The LGX2E331MELA25 has higher ripple current ratings (1.32 A @ 120 Hz and 1.98 A @ 50 kHz) compared to the 337LMX250M2CD (1.2 A @ 120 Hz and 1.764 A @ 50 kHz). This indicates the Nichicon part has lower internal resistance and thermal characteristics that support higher ripple current handling within the same 5000-hour lifetime at 105°C.

Q: Are there any packaging differences between these parts?

A: Both parts use identical Radial, Can - Snap-In packaging with Through Hole mounting. The primary difference is the seated height: 32.00 mm for the Cornell Dubilier part and 27.00 mm for the Nichicon part. Lead spacing and diameter are identical, ensuring PCB footprint compatibility.