RT0805FRE0744R2L Equivalent & Substitute Parts

Part Overview

The RT0805FRE0744R2L is a 44.2 Ohm ±1% thin film chip resistor in 0805 (2012 Metric) package format, rated for 0.125W (1/8W) power dissipation. Manufactured by YAGEO under the RT series, this component is actively produced and widely used in precision analog circuits, signal conditioning, and measurement applications where moderate tolerance and stable temperature performance are required. Finding equivalent and substitute parts becomes necessary when managing supply chain continuity, optimizing inventory costs, or accommodating design revisions that permit relaxed or enhanced specifications.

Substiute Parts

RT0805FRE0744R2L

YAGEOIn Stock: 830RT0805FRE0744R2L Datasheet

Current PartRFQ

8-1625868-9

TE Connectivity Passive ProductIn Stock: 45218-1625868-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT0805FRE0744R2L is permissible when the replacement component maintains the following critical parameters:

• Resistance Value: Exact match at 44.2 Ohms
• Package Format: Identical 0805 (2012 Metric) footprint and termination count (2 terminations)
• Composition: Thin film construction for consistent performance characteristics
• Operating Temperature Range: Must support -55°C ~ 155°C minimum
• Compliance: ROHS3 compliance and MSL 1 rating required

The substitute part 8-1625868-9 (TE Connectivity Passive Product, RP73P series) meets all mandatory substitution criteria. This part offers enhanced specifications in tolerance (±0.1% vs. ±1%) and power rating (0.25W vs. 0.125W), making it a direct functional upgrade while maintaining identical mechanical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RT0805FRE0744R2L remains the primary component choice for applications where the specified ±1% tolerance and ±50ppm/°C temperature coefficient are design requirements. Both the main part and substitute maintain active product status and full ROHS3 compliance with MSL 1 rating, ensuring regulatory and environmental compatibility across manufacturing environments.

The substitute part 8-1625868-9 is suitable for applications where enhanced tolerance (±0.1%) and increased power dissipation capability (0.25W) provide design margin without circuit modification. The improved temperature coefficient (±25ppm/°C) offers superior stability in temperature-sensitive applications. Both components are mechanically and thermally interchangeable within the 0805 package footprint.

Frequently Asked Questions (FAQ)

Q: Can 8-1625868-9 be used as a direct replacement for RT0805FRE0744R2L?

A: Yes. Both components share identical resistance value (44.2 Ohms), package format (0805), composition (thin film), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1). The substitute offers enhanced tolerance and power rating specifications.

Q: What are the key differences between these two parts?

A: The primary differences are tolerance (±0.1% vs. ±1%), power rating (0.25W vs. 0.125W), and temperature coefficient (±25ppm/°C vs. ±50ppm/°C). The substitute part provides tighter tolerance and greater thermal stability.

Q: Are there any physical dimension concerns when substituting?

A: No. Both components use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Maximum seated heights differ slightly (0.026" vs. 0.024"), but both remain within standard 0805 package specifications and are compatible with standard PCB layouts.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both RT0805FRE0744R2L and 8-1625868-9 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) ratings. Both are classified under ECCN EAR99 and HTSUS 8533.21.0030.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. Use RT0805FRE0744R2L when the ±1% tolerance specification is mandatory. Use 8-1625868-9 when enhanced tolerance (±0.1%), increased power margin (0.25W), or improved temperature stability (±25ppm/°C) provide design benefits.