RMCS0805FT12K1 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT12K1 is a 12.1 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently active in production with 925 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and operational parameters to ensure direct circuit compatibility.

Substiute Parts

RMCS0805FT12K1

Stackpole Electronics IncIn Stock: 936RMCS0805FT12K1 Datasheet

Current PartRFQ

RMCF0805FT12K1

Stackpole Electronics IncIn Stock: 640654RMCF0805FT12K1 Datasheet

MFR RecommendedRFQ

AC0805FR-0712K1L

YAGEOIn Stock: 15081AC0805FR-0712K1L Datasheet

MFR RecommendedRFQ

CRCW080512K1FKEA

Vishay DaleIn Stock: 49568CRCW080512K1FKEA Datasheet

MFR RecommendedRFQ

CRCW080512K1FKEAHP

Vishay DaleIn Stock: 35670CRCW080512K1FKEAHP Datasheet

MFR RecommendedRFQ

CRCW080512K1FKTA

Vishay DaleIn Stock: 5018CRCW080512K1FKTA Datasheet

MFR RecommendedRFQ

ERJ-6ENF1212V

Panasonic Electronic ComponentsIn Stock: 49979ERJ-6ENF1212V Datasheet

MFR RecommendedRFQ

ERJ-P06F1212V

Panasonic Electronic ComponentsIn Stock: 10237ERJ-P06F1212V Datasheet

MFR RecommendedRFQ

RC0805FR-0712K1L

YAGEOIn Stock: 95237RC0805FR-0712K1L Datasheet

MFR RecommendedRFQ

RCS080512K1FKEA

Vishay DaleIn Stock: 6152RCS080512K1FKEA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RMCS0805FT12K1 are grouped based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Resistance value: 12.1 kOhms
• Tolerance: ±1%
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C ~ 155°C
• Terminations: 2

Secondary Considerations:

• Power rating (0.125W standard; 0.5W variants available for higher power applications)
• Manufacturer certifications (AEC-Q200 automotive qualification)
• Environmental features (anti-sulfur, moisture resistant, pulse withstanding)
• RoHS and REACH compliance status

Parts are categorized into two groups: direct equivalents matching 0.125W power rating, and higher-power variants (0.5W) suitable for applications requiring increased power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (0.125W, ±1%, 12.1 kOhms, 0805):

RMCF0805FT12K1, AC0805FR-0712K1L, CRCW080512K1FKEA, ERJ-6ENF1212V, and RC0805FR-0712K1L provide direct functional equivalence to the RMCS0805FT12K1. All maintain identical electrical specifications and operating temperature range. RMCF0805FT12K1 is the manufacturer-recommended equivalent from Stackpole Electronics Inc with AEC-Q200 automotive qualification. AC0805FR-0712K1L and CRCW080512K1FKEA offer AEC-Q200 certification with high inventory availability. ERJ-6ENF1212V provides AEC-Q200 qualification from Panasonic. RC0805FR-0712K1L is available in Cut Tape packaging as an alternative to Tape & Reel format.

Higher Power Variants (0.5W, ±1%, 12.1 kOhms, 0805):

CRCW080512K1FKEAHP, ERJ-P06F1212V, and RCS080512K1FKEA are suitable for applications requiring increased power dissipation. These parts maintain all electrical parameters of the primary part while offering 0.5W power rating with pulse withstanding capability. All three carry AEC-Q200 automotive qualification and ROHS3 compliance.

Compliance Considerations:

CRCW080512K1FKTA is RoHS non-compliant and REACH affected; selection should be limited to applications without regulatory compliance requirements. All other substitutes maintain ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT12K1 be used as a direct replacement for RMCS0805FT12K1?

A: Yes. RMCF0805FT12K1 is the manufacturer-recommended equivalent from Stackpole Electronics Inc. Both parts share identical resistance (12.1 kOhms), tolerance (±1%), power rating (0.125W), package (0805), and operating temperature range (-55°C to 155°C). The primary difference is RMCF0805FT12K1 includes AEC-Q200 automotive qualification.

Q: What is the difference between 0.125W and 0.5W variants?

A: Power rating indicates maximum continuous power dissipation capability. The 0.125W variants (RMCS0805FT12K1, RMCF0805FT12K1, AC0805FR-0712K1L, CRCW080512K1FKEA, ERJ-6ENF1212V, RC0805FR-0712K1L) are suitable for standard applications. The 0.5W variants (CRCW080512K1FKEAHP, ERJ-P06F1212V, RCS080512K1FKEA) accommodate higher power dissipation and include pulse withstanding capability. Selection depends on circuit power requirements.

Q: Are all substitutes available in Tape & Reel packaging?

A: Most substitutes are available in Tape & Reel (TR) packaging. RC0805FR-0712K1L is available in Cut Tape (CT) & Digi-Reel format. Packaging selection depends on assembly process requirements and volume specifications.

Q: Which substitute offers the lowest profile?

A: CRCW080512K1FKEA, CRCW080512K1FKEAHP, and RCS080512K1FKEA offer the lowest seated height at 0.50mm maximum, compared to 0.60mm for the original RMCS0805FT12K1. This may be relevant for space-constrained applications.

Q: Do all substitutes meet automotive standards?

A: AEC-Q200 automotive qualification is present in RMCF0805FT12K1, AC0805FR-0712K1L, CRCW080512K1FKEA, CRCW080512K1FKEAHP, ERJ-6ENF1212V, and RCS080512K1FKEA. The original RMCS0805FT12K1, CRCW080512K1FKTA, and RC0805FR-0712K1L do not carry AEC-Q200 certification.

Q: What is the temperature coefficient significance?

A: All listed parts maintain ±100ppm/°C temperature coefficient, ensuring consistent resistance stability across the -55°C to 155°C operating range. This parameter is identical across all substitutes and the original part.