RT0603FRE0744R2L Equivalent & Substitute Parts

Part Overview

The RT0603FRE0744R2L is a 44.2 Ohm thin film chip resistor manufactured by YAGEO in the 0603 (1608 Metric) package format. This component is rated for 0.1W power dissipation with ±1% tolerance 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, making it suitable for applications requiring standard precision resistive elements in compact surface-mount configurations.

Equivalent and substitute parts are identified to address inventory availability, extended lead times, or specific performance requirements while maintaining functional compatibility within the same package and electrical parameter envelope.

Substiute Parts

RT0603FRE0744R2L

YAGEOIn Stock: 947RT0603FRE0744R2L Datasheet

Current PartRFQ

RP73PF1J44R2BTDF

TE Connectivity Passive ProductIn Stock: 3301RP73PF1J44R2BTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0603FRE0744R2L is determined by the following critical parameters:

• Resistance Value: Must be 44.2 Ohms (exact match required)
• Package Format: Must be 0603 (1608 Metric) to ensure PCB footprint compatibility
• Composition: Thin film construction to maintain electrical performance characteristics
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Compliance: RoHS3 compliance and MSL Level 1 rating required

The RP73PF1J44R2BTDF qualifies as a substitute part because it matches all critical parameters. While this substitute offers improved tolerance (±0.1% versus ±1%) and higher power rating (0.167W versus 0.1W), these represent performance enhancements rather than deviations from the original specification.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0603FRE0744R2L and RP73PF1J44R2BTDF maintain Active product status with full RoHS3 compliance and MSL Level 1 rating. The substitute part RP73PF1J44R2BTDF provides enhanced electrical performance through tighter tolerance (±0.1% versus ±1%) and improved temperature coefficient stability (±25ppm/°C versus ±50ppm/°C), while maintaining identical package geometry and operating temperature range.

Selection between these parts should be based on application requirements for tolerance precision and thermal stability. Both components are suitable for direct substitution in 0603 footprint designs where 44.2 Ohm thin film resistors are specified.

Frequently Asked Questions (FAQ)

Q: Can the RP73PF1J44R2BTDF replace the RT0603FRE0744R2L in existing designs?

A: Yes. Both parts share identical resistance value (44.2 Ohms), package format (0603), composition (thin film), and operating temperature range (-55°C to 155°C). The substitute part meets or exceeds all electrical and environmental specifications of the original component.

Q: What are the physical differences between these parts?

A: The parts have nearly identical dimensions. The RT0603FRE0744R2L measures 0.063" L × 0.031" W (1.60mm × 0.80mm), while the RP73PF1J44R2BTDF measures 0.061" L × 0.031" W (1.55mm × 0.80mm). Both have a maximum seated height of 0.022" (0.55mm). These minor dimensional variations do not affect PCB footprint compatibility for standard 0603 designs.

Q: How do tolerance specifications affect component selection?

A: The RT0603FRE0744R2L provides ±1% tolerance, while the RP73PF1J44R2BTDF provides ±0.1% tolerance. Applications requiring tighter resistance accuracy should specify the RP73PF1J44R2BTDF. For general-purpose applications where ±1% tolerance is acceptable, either part is suitable.

Q: Are there compliance or certification differences?

A: Both parts are RoHS3 compliant with MSL Level 1 rating. Both carry ECCN EAR99 classification and HTSUS code 8533.21.0030. No compliance barriers exist for substitution.

Q: What is the significance of temperature coefficient differences?

A: The RT0603FRE0744R2L has a temperature coefficient of ±50ppm/°C, while the RP73PF1J44R2BTDF has ±25ppm/°C. Lower temperature coefficient values indicate better resistance stability across temperature variations. Applications operating across wide temperature ranges or requiring stable resistance values should consider the improved thermal performance of the substitute part.