MLF14FTC470R Equivalent & Substitute Parts

Part Overview

The MLF14FTC470R is a 470 Ohm ±1% 1/4W MELF 0204 thin film chip resistor manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in precision analog circuits, filtering networks, and applications requiring stable resistive elements with tight tolerance specifications. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the MELF 0204 package category.

Substiute Parts

MLF14FTC470R

Stackpole Electronics IncIn Stock: 1237MLF14FTC470R Datasheet

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MMA02040C4700FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 499224MMA02040C4700FB300 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MLF14FTC470R is determined by strict equivalence in the following parameters:

• Resistance value: 470 Ohms
• Tolerance: ±1%
• Package: MELF 0204
• Composition: Thin Film
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS3 compliance

The substitute part MMA02040C4700FB300 meets all core electrical and mechanical requirements. The higher power rating (0.4W vs. 0.25W) represents an upgrade that does not compromise compatibility, as the component occupies the same physical footprint and maintains identical resistance and tolerance specifications. The addition of anti-sulfur coating and AEC-Q200 automotive qualification in the substitute part provides enhanced reliability without affecting standard circuit operation.

Parameter Comparison

Engineering Selection Recommendations

Both the MLF14FTC470R and MMA02040C4700FB300 are active production components with ROHS3 compliance and MSL 1 ratings. The MLF14FTC470R remains the primary choice for applications with established supply chain requirements or where the 0.25W power rating is specifically validated in circuit design.

The MMA02040C4700FB300 is suitable as a substitute where component availability is constrained. The upgrade to 0.4W power rating provides additional thermal margin without altering electrical performance. The AEC-Q200 automotive qualification and anti-sulfur coating of the substitute part offer enhanced reliability for applications in harsh environments or automotive systems, though these features are not required for standard industrial or consumer applications.

Both components maintain identical resistance tolerance, temperature coefficient, and operating temperature specifications, ensuring direct functional equivalence in circuit operation.

Frequently Asked Questions (FAQ)

Q: Can MMA02040C4700FB300 be used as a direct replacement for MLF14FTC470R?

A: Yes. Both components share identical resistance value (470 Ohms), tolerance (±1%), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and MELF 0204 package footprint. The higher power rating of the substitute part does not affect compatibility.

Q: What is the difference in physical dimensions between these parts?

A: The MLF14FTC470R measures 0.055" Dia x 0.138" L (1.40mm x 4.60mm). The MMA02040C4700FB300 measures 0.055" Dia x 0.142" L (1.40mm x 3.60mm). The 0.004" (0.10mm) length difference is negligible for standard PCB layouts and does not affect placement or soldering.

Q: Are both parts suitable for high-reliability applications?

A: Both components are ROHS3 compliant with MSL 1 ratings. The MMA02040C4700FB300 carries additional AEC-Q200 automotive qualification and anti-sulfur coating, making it suitable for automotive and harsh environment applications. The MLF14FTC470R is suitable for standard industrial and consumer applications.

Q: What determines substitution eligibility for MELF 0204 resistors?

A: Substitution is determined by matching resistance value, tolerance, temperature coefficient, operating temperature range, and package type. Power rating upgrades are acceptable as they do not degrade circuit performance. Composition (thin film) and compliance certifications (RoHS, MSL) must also align.

Q: Can a lower power-rated resistor substitute for these parts?

A: No. Substitution with lower power ratings is not permitted, as it reduces thermal margin and may cause component failure under normal operating conditions.