RMCS0805FT8K45 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT8K45 is an 8.45 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This component features anti-sulfur construction and is rated for operating temperatures from -55°C to 155°C. The part is currently active in production with 1119 units in stock. Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory constraints, supply chain considerations, or specific performance certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RMCS0805FT8K45

Stackpole Electronics IncIn Stock: 1184RMCS0805FT8K45 Datasheet

Current PartRFQ

RMCF0805FT8K45

Stackpole Electronics IncIn Stock: 27535RMCF0805FT8K45 Datasheet

MFR RecommendedRFQ

CRCW08058K45FKEA

Vishay DaleIn Stock: 4139CRCW08058K45FKEA Datasheet

MFR RecommendedRFQ

ERJ-6ENF8451V

Panasonic Electronic ComponentsIn Stock: 56294ERJ-6ENF8451V Datasheet

MFR RecommendedRFQ

RC0805FR-078K45L

YAGEOIn Stock: 22876RC0805FR-078K45L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS0805FT8K45 is determined by strict equivalence across the following parameters: resistance value (8.45 kOhms), tolerance (±1%), power rating (0.125W), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (ROHS3, REACH Unaffected). All identified substitute parts meet these core electrical and mechanical specifications. Differences in physical dimensions (height-seated maximum), manufacturing features (anti-sulfur versus automotive AEC-Q200 qualification), and inventory availability are noted but do not preclude functional substitution within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance. Selection between the RMCS0805FT8K45 and its equivalents should be based on application-specific requirements:

RMCF0805FT8K45 and ERJ-6ENF8451V are qualified to automotive AEC-Q200 standard, suitable for applications requiring automotive-grade reliability. RMCF0805FT8K45 offers the highest inventory availability (27437 units) among Stackpole products. ERJ-6ENF8451V provides the largest inventory pool (56241 units) across all manufacturers.

CRCW08058K45FKEA from Vishay Dale meets automotive AEC-Q200 qualification with the smallest seated height (0.020"), advantageous for space-constrained PCB layouts.

RC0805FR-078K45L from YAGEO features moisture-resistant construction and maintains inventory of 22829 units, suitable for applications in humid environments.

The original RMCS0805FT8K45 with anti-sulfur construction remains the specified reference part and should be used when no alternative sourcing drivers exist.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT8K45 directly replace RMCS0805FT8K45?

A: Yes. Both parts share identical electrical specifications (8.45 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C). The primary difference is manufacturing feature: RMCF0805FT8K45 includes automotive AEC-Q200 qualification versus anti-sulfur construction in the original. Physical height difference is 0.002" (0.05mm), which is negligible for standard PCB assembly.

Q: Are automotive AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. Automotive qualification represents an additional quality and reliability standard. Parts meeting AEC-Q200 (RMCF0805FT8K45, CRCW08058K45FKEA, ERJ-6ENF8451V) are fully compatible with non-automotive applications and provide equivalent or superior performance.

Q: What is the significance of seated height differences among substitute parts?

A: Seated height variations (0.020" to 0.028") are within standard PCB assembly tolerances for 0805 components. Selection based on height is relevant only for applications with strict vertical clearance constraints or specific PCB design requirements.

Q: Does moisture resistance in RC0805FR-078K45L provide advantages over other substitutes?

A: Moisture-resistant construction in RC0805FR-078K45L is beneficial for applications exposed to high humidity, condensation, or corrosive environments. For standard indoor or controlled environments, this feature provides no functional advantage over other equivalents.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging, maintaining compatibility with automated assembly processes.