RT0402FRE0754R9L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0754R9L is a 54.9 Ohm thin film chip resistor manufactured by YAGEO in the 0402 (1005 Metric) package format. This component is rated at ±1% tolerance with 0.063W (1/16W) power dissipation capability and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL Level 1 rating, indicating unlimited moisture sensitivity protection. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental operating parameters to ensure direct circuit board compatibility.

Substiute Parts

RT0402FRE0754R9L

YAGEOIn Stock: 949RT0402FRE0754R9L Datasheet

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CPF0402B54R9E1

TE Connectivity Passive ProductIn Stock: 930CPF0402B54R9E1 Datasheet

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ERA-2AEB54R9X

Panasonic Electronic ComponentsIn Stock: 23446ERA-2AEB54R9X Datasheet

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RN73C1E54R9BTDF

TE Connectivity Passive ProductIn Stock: 1109RN73C1E54R9BTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE0754R9L are qualified based on the following criteria:

• Identical resistance value: 54.9 Ohms
• Identical package format: 0402 (1005 Metric)
• Identical power rating: 0.063W (1/16W)
• Identical composition: Thin Film
• Identical operating temperature range: -55°C to 155°C
• Identical RoHS3 compliance and MSL Level 1 rating
• Tolerance equal to or tighter than ±1%
• Physical dimensions compatible with 0402 footprint specifications

All identified substitutes meet or exceed these parameters and maintain full electrical and mechanical interchangeability within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance with MSL Level 1 rating, ensuring regulatory and environmental compatibility with the original RT0402FRE0754R9L specification.

CPF0402B54R9E1 and RN73C1E54R9BTDF offer improved tolerance specifications at ±0.1% compared to the original ±1%, with RN73C1E54R9BTDF providing the lowest temperature coefficient at ±10ppm/°C. These characteristics support applications requiring enhanced precision and thermal stability.

ERA-2AEB54R9X incorporates AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. The maximum seated height of 0.016" (0.40mm) is marginally higher than the original specification but remains within standard 0402 package tolerances.

Selection should be based on application-specific requirements for tolerance, temperature coefficient stability, and automotive qualification status.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B54R9E1 be used as a direct replacement for RT0402FRE0754R9L?

A: Yes. Both components share identical resistance value, power rating, package format, operating temperature range, and RoHS3 compliance. The ±0.1% tolerance of CPF0402B54R9E1 is tighter than the original ±1%, providing improved precision without compromising compatibility.

Q: What is the significance of the temperature coefficient difference between these parts?

A: Temperature coefficient indicates resistance value drift across the operating temperature range. RN73C1E54R9BTDF exhibits ±10ppm/°C, compared to ±50ppm/°C for the original RT0402FRE0754R9L. Lower temperature coefficients provide greater resistance stability in applications subject to thermal cycling or wide temperature variations.

Q: Is ERA-2AEB54R9X suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification exceeds standard industrial requirements and does not restrict use in non-automotive circuits. The automotive rating indicates enhanced reliability and quality assurance, making it suitable for any application requiring high-reliability components.

Q: Are there physical footprint compatibility concerns with ERA-2AEB54R9X?

A: ERA-2AEB54R9X has a maximum seated height of 0.016" (0.40mm) compared to 0.014" (0.35mm) for other substitutes. This 0.002" (0.05mm) difference remains within standard 0402 package tolerances and does not affect PCB footprint compatibility or assembly processes.

Q: Which substitute part offers the best overall performance upgrade?

A: Selection depends on application requirements. RN73C1E54R9BTDF provides the lowest temperature coefficient for thermal stability. ERA-2AEB54R9X provides automotive-grade reliability. CPF0402B54R9E1 balances improved tolerance with standard industrial specifications.