RT0402FRE0739R2L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0739R2L is a 39.2 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 applications where tolerance, temperature coefficient, or supplier availability considerations warrant component substitution.

Substiute Parts

RT0402FRE0739R2L

YAGEOIn Stock: 1070RT0402FRE0739R2L Datasheet

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CPF0402B39R2E1

TE Connectivity Passive ProductIn Stock: 4312CPF0402B39R2E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0402FRE0739R2L is determined by strict equivalence in the following critical parameters:

• Resistance Value: Must be 39.2 Ohms (exact match required)
• Package Format: Must be 0402 (1005 Metric) for PCB footprint compatibility
• Power Rating: Must be 0.063W (1/16W) minimum
• Composition: Thin film construction for performance consistency
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Compliance: RoHS3 compliance and MSL 1 rating required

The CPF0402B39R2E1 manufactured by TE Connectivity qualifies as a direct substitute. While this part offers improved tolerance (±0.1% versus ±1%) and superior temperature coefficient (±25ppm/°C versus ±50ppm/°C), it maintains full compatibility across all mandatory electrical and mechanical parameters. The enhanced specifications represent an upgrade path for applications requiring tighter tolerance control.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0739R2L and CPF0402B39R2E1 maintain Active product status with full regulatory compliance. Selection between these components should be based on application-specific tolerance and temperature stability requirements. The YAGEO RT0402FRE0739R2L provides standard precision performance with ±1% tolerance suitable for general-purpose applications. The TE Connectivity CPF0402B39R2E1 offers enhanced precision with ±0.1% tolerance and improved temperature coefficient performance, making it appropriate for applications requiring tighter resistance value control and superior thermal stability. Both parts satisfy identical compliance requirements including RoHS3 certification, REACH compliance, and unlimited moisture sensitivity rating, ensuring interchangeability from a regulatory and environmental standpoint.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B39R2E1 be used as a direct replacement for RT0402FRE0739R2L?

A: Yes. Both components share identical resistance value (39.2 Ohms), package format (0402), power rating (1/16W), and operating temperature range (-55°C to 155°C). The CPF0402B39R2E1 provides superior tolerance and temperature coefficient specifications, making it a compatible upgrade.

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

A: The primary differences are tolerance specification (±1% versus ±0.1%) and temperature coefficient (±50ppm/°C versus ±25ppm/°C). The CPF0402B39R2E1 delivers tighter tolerance control and improved thermal stability. All other electrical and mechanical parameters remain equivalent.

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both components use identical 0402 (1005 Metric) package dimensions and footprint specifications. No PCB redesign or layout modification is required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RT0402FRE0739R2L and CPF0402B39R2E1 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. They are equivalent from a regulatory and environmental compliance perspective.

Q: Which part should be selected for precision analog circuits?

A: The CPF0402B39R2E1 is recommended for precision applications due to its ±0.1% tolerance and ±25ppm/°C temperature coefficient, providing superior resistance value stability across temperature variations.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical package format, power rating, and operating temperature range ensure direct interchangeability without design modification. Component selection should be based on tolerance and temperature coefficient requirements specific to the application.