NLW75-50 Equivalent & Substitute Parts

Part Overview

The NLW75-50 is a 75 µF, 50 V aluminum electrolytic capacitor in axial, can package configuration manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating discontinued production and limited availability in the market. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 1000 hours at 105°C. Due to its obsolete status and finite inventory levels, identification of functionally equivalent substitute components is necessary for ongoing design support and production continuity.

Substiute Parts

NLW75-50

Cornell Dubilier Electronics (CDE)In Stock: 832NLW75-50 Datasheet

Current PartRFQ

107TMA050M

Cornell Dubilier / Illinois CapacitorIn Stock: 5245107TMA050M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NLW75-50 is determined by the following critical parameters:

Voltage Compatibility: The substitute part must maintain the same 50 V rated voltage to ensure safe operation within the original circuit design envelope.

Package and Mounting: Both the main part and substitute must utilize axial, can package configuration with through-hole mounting to ensure mechanical and electrical compatibility with existing PCB layouts.

Polarization: The substitute must maintain polar configuration to preserve circuit polarity requirements.

Environmental Compliance: The substitute must meet ROHS3 compliance and operate within the -40°C to 105°C temperature range.

Electrical Performance: While capacitance values may vary within acceptable design tolerances, the substitute must support the ripple current requirements and ESR characteristics of the application.

The 107TMA050M qualifies as a substitute based on matching voltage rating (50 V), package type (axial, can), mounting method (through hole), polarization (polar), and environmental compliance (ROHS3). The substitute provides enhanced performance characteristics including lower ESR and extended lifetime rating.

Parameter Comparison

Engineering Selection Recommendations

The 107TMA050M serves as the manufacturer-recommended substitute for the obsolete NLW75-50. Selection of this substitute is supported by the following engineering factors:

Product Status: The NLW75-50 is classified as obsolete with finite inventory. The 107TMA050M maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance Certification: Both components maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, confirming equivalent environmental qualification.

Electrical Performance Enhancement: The 107TMA050M provides superior electrical characteristics including reduced ESR (1.989 Ohm versus 2.7 Ohm) and doubled lifetime rating (2000 hours versus 1000 hours at 105°C), resulting in improved reliability and thermal performance.

Voltage and Temperature Compatibility: Identical 50 V voltage rating and -40°C to 105°C operating temperature range ensure direct functional compatibility within existing circuit designs.

Package Compatibility: Both components utilize identical axial, can package configuration with through-hole mounting, permitting direct mechanical substitution on existing PCB layouts.

Capacitance Consideration: The 107TMA050M provides 100 µF capacitance compared to the 75 µF specification of the NLW75-50. This 33% increase in capacitance value falls within acceptable design tolerance ranges for general-purpose aluminum electrolytic capacitor applications and typically provides beneficial filtering characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 107TMA050M be used as a direct replacement for the NLW75-50?

A: Yes. Both components share identical 50 V voltage rating, axial can package configuration, through-hole mounting type, and polar polarization. The 107TMA050M is the manufacturer-recommended substitute and maintains equivalent electrical and mechanical compatibility.

Q: What is the significance of the capacitance difference between 75 µF and 100 µF?

A: The 107TMA050M provides 100 µF capacitance versus the 75 µF specification of the NLW75-50. This represents a 33% increase in capacitance value. For general-purpose filtering applications, this increase typically enhances performance without introducing circuit incompatibility. Application-specific circuit analysis is required to confirm acceptability for specialized filtering or timing-critical functions.

Q: How do the physical dimensions compare?

A: The NLW75-50 measures 0.400" diameter by 1.060" length (10.16mm x 26.92mm). The 107TMA050M measures 0.315" diameter by 0.630" length (8.00mm x 16.00mm). The substitute component is physically smaller, which may provide PCB layout advantages. Verify that the reduced size does not create mechanical clearance issues in the target application.

Q: What is the difference in ESR between these components?

A: The NLW75-50 exhibits 2.7 Ohm ESR at 120 Hz, while the 107TMA050M exhibits 1.989 Ohm ESR at 120 Hz. The lower ESR of the substitute component reduces resistive losses and heat generation, contributing to improved thermal performance and extended operational life.

Q: How do the lifetime ratings compare?

A: The NLW75-50 is rated for 1000 hours at 105°C. The 107TMA050M is rated for 2000 hours at 105°C. The doubled lifetime rating of the substitute indicates enhanced reliability and extended service life under thermal stress conditions.

Q: Are both components RoHS compliant?

A: Yes. Both the NLW75-50 and 107TMA050M maintain ROHS3 compliance certification, confirming equivalent environmental qualification and regulatory acceptance.

Q: What is the ripple current capability difference?

A: The NLW75-50 supports 200 mA ripple current at 120 Hz and 230 mA at 10 kHz. The 107TMA050M supports 155 mA at 120 Hz and 232.5 mA at 50 kHz. The substitute exhibits lower ripple current capability at low frequency (120 Hz) but maintains comparable performance at higher frequencies. Verify ripple current requirements for the specific application frequency range.

Q: Why is the NLW75-50 classified as obsolete?

A: Obsolete classification indicates that the manufacturer has discontinued production of this component. The NLW75-50 remains available through existing inventory channels, but long-term supply cannot be guaranteed. The 107TMA050M maintains active production status, ensuring sustained availability for future production requirements.