RMCS0805FT18K7 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT18K7 is an 18.7 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) surface mount package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor is designed for general-purpose applications requiring precision resistance values with stable performance across the -55°C to 155°C operating temperature range. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and compliance certifications to ensure direct circuit board compatibility.

Substiute Parts

RMCS0805FT18K7

Stackpole Electronics IncIn Stock: 928RMCS0805FT18K7 Datasheet

Current PartRFQ

RMCF0805FT18K7

Stackpole Electronics IncIn Stock: 247296RMCF0805FT18K7 Datasheet

MFR RecommendedRFQ

CRCW080518K7FKEA

Vishay DaleIn Stock: 20683CRCW080518K7FKEA Datasheet

MFR RecommendedRFQ

ERJ-6ENF1872V

Panasonic Electronic ComponentsIn Stock: 72877ERJ-6ENF1872V Datasheet

MFR RecommendedRFQ

RC0805FR-0718K7L

YAGEOIn Stock: 93939RC0805FR-0718K7L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RMCS0805FT18K7 are qualified based on the following criteria:

Electrical Specifications: All substitute parts maintain identical resistance value (18.7 kOhms), tolerance (±1%), power rating (0.125W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C).

Package Compatibility: All substitute parts use the 0805 (2012 Metric) surface mount package with two terminations, ensuring mechanical and electrical compatibility on printed circuit boards designed for this footprint.

Composition & Construction: All parts utilize thick film resistor technology, maintaining consistent electrical behavior and reliability characteristics.

Compliance & Certifications: All substitute parts are ROHS3 compliant with MSL 1 rating, meeting the same environmental and regulatory requirements as the primary part.

Functional Equivalence: The substitutes differ only in manufacturer-specific features (anti-sulfur, automotive AEC-Q200 certification, or moisture resistance) and minor dimensional variations in seated height, which do not affect circuit performance or board assembly compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and identical electrical specifications to the RMCS0805FT18K7. Selection among these equivalents depends on application-specific requirements:

RMCF0805FT18K7 (Stackpole Electronics Inc) carries automotive AEC-Q200 certification, suitable for automotive and high-reliability applications requiring enhanced qualification standards.

CRCW080518K7FKEA (Vishay Dale) provides automotive AEC-Q200 certification with the lowest seated height (0.020"), beneficial for space-constrained board layouts.

ERJ-6ENF1872V (Panasonic Electronic Components) offers automotive AEC-Q200 certification with established supply chain availability.

RC0805FR-0718K7L (YAGEO) features moisture-resistant construction without automotive certification, suitable for general industrial and consumer applications.

All parts maintain identical footprint compatibility and electrical performance within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can RMCS0805FT18K7 be directly replaced with any of the listed substitutes?

A: Yes. All listed substitutes share identical electrical specifications (18.7 kOhms ±1%, 0.125W), package dimensions (0805 / 2012 Metric), and compliance certifications (ROHS3, MSL 1). Direct substitution on the printed circuit board is electrically and mechanically compatible.

Q: What is the difference between the anti-sulfur feature of RMCS0805FT18K7 and the automotive AEC-Q200 certification of RMCF0805FT18K7?

A: Anti-sulfur construction protects against sulfur-containing environmental contaminants. Automotive AEC-Q200 certification indicates qualification for automotive applications with enhanced reliability testing. These are different feature sets addressing different application requirements. Both parts meet the same electrical and package specifications.

Q: Does the seated height variation among substitutes affect circuit board assembly?

A: Seated height variations (0.020" to 0.028") are within standard 0805 package tolerances and do not affect assembly compatibility. All parts fit within the same footprint and solder reflow profile. Height differences are negligible for standard PCB design.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging, matching the original RMCS0805FT18K7 format for automated assembly processes.

Q: Which substitute should be selected for automotive applications?

A: RMCF0805FT18K7, CRCW080518K7FKEA, and ERJ-6ENF1872V all carry automotive AEC-Q200 certification. Selection among these three depends on preferred manufacturer and supply chain considerations.

Q: Is moisture sensitivity a concern when selecting substitutes?

A: No. All parts, including the original RMCS0805FT18K7, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.