RMCF2010FT866K Equivalent & Substitute Parts

Part Overview

The RMCF2010FT866K is a 866 kOhms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor meets automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently in active production status. Substitute parts may be required due to supply constraints, manufacturing discontinuation of specific series, or design flexibility for equivalent performance requirements.

Substiute Parts

RMCF2010FT866K

Stackpole Electronics IncIn Stock: 872RMCF2010FT866K Datasheet

Current PartRFQ

ERJ-12SF8663U

Panasonic Electronic ComponentsIn Stock: 7737ERJ-12SF8663U Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF2010FT866K is determined by strict equivalence across the following parameters:

• Resistance value: 866 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.75W (exact match required)
• Package: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The ERJ-12SF8663U from Panasonic Electronic Components meets all substitution criteria. This part maintains identical electrical specifications, mechanical dimensions, and automotive compliance ratings. The primary distinction is product status: ERJ-12SF8663U is designated "Not For New Designs," indicating it remains available for existing applications but is not recommended for new product development.

Parameter Comparison

Engineering Selection Recommendations

The RMCF2010FT866K is the primary selection for new designs due to its active product status. This ensures long-term availability and manufacturer support for production quantities.

The ERJ-12SF8663U serves as a direct functional equivalent for existing applications or where supply of the primary part is constrained. This substitute maintains full electrical and mechanical compatibility. However, its "Not For New Designs" status indicates that Panasonic has transitioned this series to end-of-life management. Selection of ERJ-12SF8663U should be limited to legacy product support or temporary supply solutions.

Both parts satisfy identical compliance requirements: AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status. Thermal and electrical performance characteristics are equivalent across the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF8663U be used as a direct replacement for RMCF2010FT866K in automotive applications?

A: Yes. Both parts meet AEC-Q200 automotive qualification and maintain identical electrical specifications (866 kOhms ±1%, 0.75W, ±100ppm/°C). Package dimensions and thermal operating range are equivalent. The substitute is mechanically and electrically interchangeable.

Q: What is the significance of "Not For New Designs" status on the ERJ-12SF8663U?

A: This designation indicates that Panasonic has discontinued active development and promotion of this part series. While the part remains available for existing applications, it is not recommended for incorporation into new product designs. For new designs, RMCF2010FT866K (Active status) is the preferred selection.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. Moisture sensitivity level is identical (MSL 1 - Unlimited). Regulatory and environmental compliance are equivalent.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both parts use the 2010 (5025 Metric) package with identical footprint dimensions (0.197" L x 0.098" W, 5.00mm x 2.50mm) and maximum seated height (0.028" / 0.70mm). PCB layout and assembly processes require no modification.

Q: What parameters must match exactly for substitution eligibility?

A: Resistance value (866 kOhms), tolerance (±1%), power rating (0.75W), package type (2010), composition (Thick Film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive qualification (AEC-Q200) must all match exactly. Any deviation in these parameters disqualifies a part as a direct substitute.