TC75102 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The TC75102 is a 1000 µF, 75 V aluminum electrolytic capacitor in axial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is rated for general-purpose applications with specifications including 100 mOhm ESR at 120 Hz and a 1000-hour lifetime at 85°C. The product status is obsolete, making identification of suitable substitutes necessary for ongoing design support and component sourcing.

Substiute Parts

TC75102

Cornell Dubilier Electronics (CDE)In Stock: 1160TC75102 Datasheet

Current PartRFQ

MAL202119102E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1286MAL202119102E3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC75102 is based on the following critical parameters that must be satisfied:

Mandatory Compatibility Parameters:

• Capacitance: 1000 µF (exact match required)
• Voltage Rating: Minimum 75 V (equal or higher rated voltage acceptable)
• Package Type: Axial, Can (through-hole mounting)
• Polarization: Polar (electrolytic)
• Operating Temperature Range: Must encompass -40°C to 85°C

Functional Parameters:

• ESR and lifetime characteristics must support the application's ripple current and thermal requirements
• Lead configuration must be compatible with axial PCB layouts

The MAL202119102E3 from Vishay Beyschlag/Draloric/BC Components meets these core substitution criteria with a higher voltage rating (100 V) and improved lifetime specification (8000 hours at 85°C).

Parameter Comparison

Engineering Selection Recommendations

Substitution Viability: The MAL202119102E3 is a direct functional substitute for the TC75102 based on core electrical specifications and package compatibility.

Key Advantages of MAL202119102E3:

• Active product status ensures continued availability and supply chain reliability
• RoHS3 compliance supports modern manufacturing and regulatory requirements
• 8000-hour lifetime at 85°C provides superior thermal durability compared to the obsolete TC75102's 1000-hour rating
• Higher voltage rating (100 V versus 75 V) increases safety margin in the circuit

Considerations:

• Physical dimensions differ slightly (0.827" Dia × 1.496" L versus 1.000" Dia × 1.625" L); PCB layout verification is necessary
• Tolerance specification is tighter (±20% versus -10%, +75%), improving capacitance consistency
• Higher ESR (160 mOhm versus 100 mOhm) must be evaluated against ripple current requirements in the target application

Frequently Asked Questions (FAQ)

Q: Can the MAL202119102E3 replace the TC75102 in any circuit? A: The MAL202119102E3 meets the electrical substitution criteria for the TC75102. However, physical dimensions differ, requiring verification that the smaller can size (21.00 mm diameter × 38.00 mm length) fits within the PCB layout constraints. The higher 100 V rating is fully compatible with circuits designed for 75 V operation.

Q: What does the higher voltage rating on the MAL202119102E3 mean? A: The 100 V rating on the substitute provides a 25 V safety margin above the original 75 V design. This is beneficial and poses no compatibility issues; the component will function correctly in circuits rated for 75 V operation.

Q: Are there packaging or lead configuration differences? A: Both components use through-hole axial mounting. The MAL202119102E3 is slightly smaller in physical dimensions (21.00 mm diameter versus 25.40 mm diameter). The lead spacing for axial configurations must be verified against the PCB layout during substitution.

Q: Why is the ESR different, and does this matter? A: The MAL202119102E3 has a slightly higher ESR (160 mOhm versus 100 mOhm). ESR affects ripple current handling and thermal behavior. Applications with high ripple current demands should be evaluated against the specified ripple current ratings (2.344 A @ 120 Hz for TC75102; 2.058 A @ 10 kHz for MAL202119102E3) to confirm adequate performance.

Q: What is the significance of the longer lifetime on the MAL202119102E3? A: The MAL202119102E3 offers an 8000-hour lifetime at 85°C compared to 1000 hours for the TC75102. This 8× improvement in thermal durability enhances reliability in applications subject to sustained elevated temperatures, providing better long-term performance and reduced failure risk.

Q: Is RoHS compliance important for this substitution? A: The TC75102 is RoHS non-compliant while the MAL202119102E3 is RoHS3 compliant. RoHS compliance is necessary for new equipment designs destined for markets within the European Union and other regulated regions. For legacy system repairs or non-regulated applications, RoHS status may not be a selection criterion.

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