MLF14FTC6K81 Equivalent & Substitute Parts

Part Overview

The MLF14FTC6K81 is a 6.81 kOhms ±1% 0.25W MELF 0204 thin film chip resistor manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in precision analog circuits, measurement equipment, and applications requiring stable resistive elements with tight tolerance specifications. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications align with the original specification, enabling procurement flexibility and supply chain continuity.

Substiute Parts

MLF14FTC6K81

Stackpole Electronics IncIn Stock: 841MLF14FTC6K81 Datasheet

Current PartRFQ

MMA02040C6811FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 9707MMA02040C6811FB300 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLF14FTC6K81 is determined by the following critical parameters:

• Resistance Value: Must be 6.81 kOhms
• Tolerance: Must be ±1%
• Package Type: Must be MELF 0204
• Composition: Must be Thin Film
• Temperature Coefficient: Must be ±50ppm/°C
• Operating Temperature Range: Must support -55°C to 155°C
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The substitute part MMA02040C6811FB300 meets all these core electrical and mechanical requirements. The higher power rating (0.4W versus 0.25W) represents an upgrade that maintains backward compatibility while providing additional thermal margin. The physical dimensions remain within the MELF 0204 envelope, and all compliance certifications are preserved.

Parameter Comparison

Engineering Selection Recommendations

Both the MLF14FTC6K81 and MMA02040C6811FB300 are active production components with identical electrical specifications for resistance, tolerance, temperature coefficient, and operating range. The MMA02040C6811FB300 is qualified to AEC-Q200 automotive standards and incorporates anti-sulfur construction, making it suitable for applications requiring enhanced environmental robustness. The increased power rating provides additional thermal headroom without affecting circuit performance. Selection between these parts should be based on application requirements: the MLF14FTC6K81 for standard industrial applications, and the MMA02040C6811FB300 for automotive, harsh environment, or thermally demanding circuits.

Frequently Asked Questions (FAQ)

Q: Can MMA02040C6811FB300 be used as a direct replacement for MLF14FTC6K81?

A: Yes. Both components share identical resistance value (6.81 kOhms), tolerance (±1%), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and MELF 0204 package type. The higher power rating of the substitute part is a non-limiting upgrade.

Q: What is the significance of the higher power rating in MMA02040C6811FB300?

A: The 0.4W rating versus 0.25W provides additional thermal dissipation capability. In circuits operating at or near the original 0.25W limit, the substitute part reduces junction temperature and extends component life.

Q: Are there physical compatibility concerns between these parts?

A: No. Both components use the MELF 0204 package. The substitute part dimensions (0.055" Dia x 0.142" L) are within the MELF 0204 specification envelope and compatible with existing PCB layouts and solder processes.

Q: What does AEC-Q200 qualification mean for the substitute part?

A: AEC-Q200 is an automotive industry standard for passive components. It certifies the MMA02040C6811FB300 for automotive applications requiring enhanced reliability, environmental stress testing, and quality assurance protocols.

Q: Do both parts maintain the same compliance certifications?

A: Yes. Both the MLF14FTC6K81 and MMA02040C6811FB300 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level) ratings.