RT0603FRE0743RL Equivalent & Substitute Parts

Part Overview

The RT0603FRE0743RL is a 43 Ohms ±1% thin film chip resistor in 0603 (1608 Metric) package format, rated for 0.1W power dissipation. This component is actively manufactured by YAGEO and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. The part is suitable for precision analog circuits, signal conditioning, and general-purpose resistive applications requiring stable performance across the -55°C to 155°C operating temperature range.

Substitute parts are identified when equivalent resistance values, package formats, and power ratings are maintained while offering improved electrical characteristics or enhanced availability.

Substiute Parts

RT0603FRE0743RL

YAGEOIn Stock: 4768RT0603FRE0743RL Datasheet

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RT0603BRD0743RL

YAGEOIn Stock: 7287RT0603BRD0743RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0603FRE0743RL is determined by the following mandatory parameters:

• Resistance value: 43 Ohms (exact match required)
• Package format: 0603 (1608 Metric) with identical physical dimensions
• Power rating: 0.1W minimum
• Composition: Thin film construction
• Operating temperature range: -55°C to 155°C minimum
• RoHS3 compliance and MSL 1 rating

The RT0603BRD0743RL qualifies as a direct substitute by meeting all mandatory parameters while offering improved tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RT0603FRE0743RL and RT0603BRD0743RL are active products with full RoHS3 compliance and identical mechanical compatibility. The RT0603BRD0743RL provides enhanced electrical performance through tighter tolerance specification (±0.1% versus ±1%) and improved temperature stability (±25ppm/°C versus ±50ppm/°C). Selection between these parts depends on circuit requirements for tolerance and temperature coefficient performance. Both parts maintain identical package dimensions, thermal characteristics, and regulatory compliance status, ensuring direct PCB-level interchangeability.

Frequently Asked Questions (FAQ)

Q: Can RT0603BRD0743RL replace RT0603FRE0743RL in existing designs?

A: Yes. Both parts share identical 0603 package dimensions, power rating, resistance value, and operating temperature range. The substitute offers improved tolerance and temperature coefficient specifications.

Q: Are there physical compatibility concerns when substituting these parts?

A: No. Both parts have identical dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) and maximum seated height (0.022" / 0.55mm), ensuring direct PCB footprint compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both RT0603FRE0743RL and RT0603BRD0743RL are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status.

Q: What is the primary difference between these two parts?

A: The RT0603BRD0743RL features tighter tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), providing superior stability in precision applications.

Q: Are both parts actively manufactured?

A: Yes. Both the RT0603FRE0743RL and RT0603BRD0743RL maintain active product status with YAGEO.