RT0402FRE0744R2L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0744R2L is a 44.2 Ohm thin film chip resistor manufactured by YAGEO in the 0402 (1005 Metric) package format. This component is rated at 1/16W (0.063W) with ±1% tolerance and is designed for precision applications requiring stable resistance values across a wide operating temperature range of -55°C to 155°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and performance optimization options for circuit implementations.

Substiute Parts

RT0402FRE0744R2L

YAGEOIn Stock: 1026RT0402FRE0744R2L Datasheet

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CPF0402B44R2E1

TE Connectivity Passive ProductIn Stock: 1810CPF0402B44R2E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT0402FRE0744R2L is determined by strict equivalence in the following critical parameters: resistance value (44.2 Ohms), package format (0402 / 1005 Metric), power rating (0.063W minimum), composition (thin film), and operating temperature range (-55°C to 155°C minimum). The substitute part CPF0402B44R2E1 meets all mandatory electrical and mechanical requirements for direct substitution. Enhanced tolerance specifications (±0.1% versus ±1%) and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C) represent performance upgrades rather than compatibility constraints, making this substitute suitable for applications requiring higher precision.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0744R2L and CPF0402B44R2E1 maintain Active product status with full RoHS3 compliance and identical moisture sensitivity ratings, ensuring long-term availability and environmental regulatory compliance. The CPF0402B44R2E1 offers enhanced precision through tighter tolerance (±0.1% versus ±1%) and superior temperature stability (±25ppm/°C versus ±50ppm/°C), making it suitable for applications where component drift must be minimized across temperature extremes. Selection between these parts should be based on circuit tolerance requirements and thermal performance specifications rather than functional compatibility, as both components are electrically and mechanically interchangeable in the 0402 package format.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B44R2E1 be used as a direct replacement for RT0402FRE0744R2L?

A: Yes. Both components share identical resistance value (44.2 Ohms), power rating (0.063W), package format (0402 / 1005 Metric), operating temperature range (-55°C to 155°C), and physical dimensions. The substitute part is mechanically and electrically compatible for direct PCB substitution.

Q: What are the differences between these two resistors?

A: The primary differences are tolerance specification and temperature coefficient. The CPF0402B44R2E1 provides ±0.1% tolerance compared to ±1% for the RT0402FRE0744R2L, and exhibits a temperature coefficient of ±25ppm/°C versus ±50ppm/°C. These represent performance enhancements rather than compatibility limitations.

Q: Are there any package or footprint differences?

A: No. Both components use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W / 1.00mm x 0.50mm) and maximum seated height (0.014" / 0.35mm). PCB footprints are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RT0402FRE0744R2L and CPF0402B44R2E1 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both maintain Active product status.

Q: Which part should I select for high-precision applications?

A: The CPF0402B44R2E1 is the appropriate choice for applications requiring tighter tolerance control and minimal temperature-induced drift due to its ±0.1% tolerance and ±25ppm/°C temperature coefficient specifications.