RC5025F2940CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F2940CS is a 294 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) continuous power dissipation and operates across the temperature range of -55°C to 155°C. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and package compatibility align with the main part's functional requirements. The RC5025F2940CS has one qualified substitute that maintains the same resistance value, tolerance, and package format while offering alternative manufacturing and certification options.

Substiute Parts

RC5025F2940CS

Samsung Electro-MechanicsIn Stock: 944RC5025F2940CS Datasheet

Current PartRFQ

RMCF2010FT294R

Stackpole Electronics IncIn Stock: 8765RMCF2010FT294R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F2940CS is determined by strict alignment of the following critical parameters:

Electrical Compatibility Requirements:

• Resistance value: 294 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)

Mechanical Compatibility Requirements:

• Package format: 2010 (5025 Metric) (exact match required)
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Requirements:

• RoHS3 compliance (required)
• Moisture sensitivity level: MSL 1 (required)

The substitute part RMCF2010FT294R meets all electrical, mechanical, and compliance criteria. The primary difference is an increased power rating (0.75W versus 0.667W) and automotive-grade AEC-Q200 certification, which represents a higher performance tier suitable for applications requiring enhanced reliability specifications.

Parameter Comparison

Engineering Selection Recommendations

RC5025F2940CS (Samsung Electro-Mechanics) is the primary specification. This part is Active status with full ROHS3 compliance and unlimited moisture sensitivity rating. Selection is appropriate for standard industrial applications where the 0.667W power rating meets circuit requirements and cost optimization is a consideration.

RMCF2010FT294R (Stackpole Electronics Inc) is a qualified substitute suitable for applications requiring enhanced reliability. The AEC-Q200 automotive qualification indicates this part has undergone additional qualification testing and is suitable for automotive and mission-critical applications. The increased power rating (0.75W) provides additional thermal margin. The maximum seated height difference of 0.002" (0.04mm) is negligible for standard PCB assembly processes. This substitute is appropriate when automotive-grade reliability or higher power dissipation margin is required.

Both parts maintain identical electrical performance in the 294 Ohm ±1% specification and are mechanically compatible within standard PCB assembly tolerances.

Frequently Asked Questions (FAQ)

Q: Can RMCF2010FT294R be used as a direct replacement for RC5025F2940CS?

A: Yes. Both parts share identical resistance (294 Ohms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and package format (2010/5025 Metric). The RMCF2010FT294R has a higher power rating (0.75W versus 0.667W) and AEC-Q200 certification, making it suitable for applications requiring enhanced reliability specifications.

Q: What is the significance of the AEC-Q200 certification on the RMCF2010FT294R?

A: AEC-Q200 is an automotive industry qualification standard that requires additional testing for reliability, temperature cycling, and failure rate performance. This certification indicates the part is qualified for automotive applications and mission-critical environments. For non-automotive applications, this certification provides assurance of higher manufacturing and quality standards.

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

A: The maximum seated height difference is 0.002" (0.04mm), which is within standard PCB assembly tolerances and does not require layout modifications. Both parts use identical 2010 (5025 Metric) package dimensions and two-terminal configuration. Standard pick-and-place and reflow processes are compatible with both parts.

Q: What is the difference in power rating between these parts, and does it affect circuit design?

A: The RC5025F2940CS is rated for 0.667W (2/3W) while the RMCF2010FT294R is rated for 0.75W (3/4W). If the circuit design requires the full 0.667W power dissipation, the RMCF2010FT294R provides additional thermal margin. If the circuit operates below 0.667W, both parts are functionally equivalent.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC5025F2940CS and RMCF2010FT294R are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), indicating no special moisture handling requirements during storage or assembly.

Q: What is the temperature coefficient specification, and why is it important?

A: Both parts have a temperature coefficient of ±100ppm/°C, meaning the resistance value changes by a maximum of 100 parts per million for each degree Celsius change in operating temperature. This specification is critical for precision analog circuits and ensures predictable performance across the -55°C to 155°C operating range.