RT0603FRE0738R3L Equivalent & Substitute Parts

Part Overview

The RT0603FRE0738R3L is a 38.3 Ohms ±1% thin film chip resistor manufactured by YAGEO in the 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation with a temperature coefficient of ±50ppm/°C and operates across the -55°C to 155°C temperature range. The part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent resistance values, package dimensions, and electrical performance parameters align within acceptable engineering tolerances for the application.

Substiute Parts

RT0603FRE0738R3L

YAGEOIn Stock: 1211RT0603FRE0738R3L Datasheet

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RP73PF1J38R3BTDF

TE Connectivity Passive ProductIn Stock: 3392RP73PF1J38R3BTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0603FRE0738R3L are qualified based on the following critical parameters:

• Resistance Value: Exact match at 38.3 Ohms
• Package Format: 0603 (1608 Metric) physical dimensions and footprint compatibility
• Composition: Thin film construction for consistent performance characteristics
• Operating Temperature Range: Minimum -55°C to 155°C coverage
• Compliance: ROHS3 compliance and EAR99 export classification alignment

The RP73PF1J38R3BTDF from TE Connectivity Passive Product qualifies as a substitute based on matching resistance value, identical package format, thin film composition, and equivalent operating temperature range. Differences in tolerance (±0.1% vs ±1%), power rating (0.167W vs 0.1W), and temperature coefficient (±25ppm/°C vs ±50ppm/°C) represent performance enhancements rather than compatibility limitations.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0603FRE0738R3L and RP73PF1J38R3BTDF maintain Active product status and full ROHS3 compliance. The RP73PF1J38R3BTDF offers enhanced electrical characteristics including tighter tolerance (±0.1%), higher power dissipation capability (0.167W), and improved temperature stability (±25ppm/°C). Selection between these parts depends on application-specific requirements for tolerance precision and thermal performance within the 0603 package format. Both components satisfy identical footprint and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the RP73PF1J38R3BTDF directly replace the RT0603FRE0738R3L in existing designs?

A: Yes. Both components share identical 0603 (1608 Metric) package dimensions, footprint, and resistance value of 38.3 Ohms. The RP73PF1J38R3BTDF provides equivalent or superior electrical performance across all specified operating conditions.

Q: What are the physical dimension differences between these parts?

A: The RT0603FRE0738R3L measures 0.063" L x 0.031" W (1.60mm x 0.80mm). The RP73PF1J38R3BTDF measures 0.061" L x 0.031" W (1.55mm x 0.80mm). Both maintain identical 0.022" (0.55mm) maximum seated height and are compatible with standard 0603 PCB footprints.

Q: How do tolerance specifications affect component selection?

A: The RT0603FRE0738R3L provides ±1% tolerance, while the RP73PF1J38R3BTDF provides ±0.1% tolerance. Applications requiring tighter resistance accuracy should specify the RP73PF1J38R3BTDF. Applications with ±1% tolerance requirements are satisfied by either component.

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

A: Yes. Both components operate across -55°C to 155°C. The RP73PF1J38R3BTDF offers superior temperature stability with ±25ppm/°C coefficient compared to the RT0603FRE0738R3L at ±50ppm/°C, providing more predictable resistance variation across temperature extremes.

Q: What is the power dissipation difference?

A: The RT0603FRE0738R3L is rated for 0.1W (1/10W). The RP73PF1J38R3BTDF is rated for 0.167W (1/6W). Applications requiring higher power dissipation capability should specify the RP73PF1J38R3BTDF.