RMCS1206FT5K11 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT5K11 is a 5.11 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are necessary to address supply chain availability, specific application requirements such as automotive qualification, or packaging format preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

RMCS1206FT5K11

Stackpole Electronics IncIn Stock: 699RMCS1206FT5K11 Datasheet

Current PartRFQ

RMCF1206FT5K11

Stackpole Electronics IncIn Stock: 471307RMCF1206FT5K11 Datasheet

MFR RecommendedRFQ

CR1206-FX-5111ELF

Bourns Inc.In Stock: 36009CR1206-FX-5111ELF Datasheet

MFR RecommendedRFQ

CRCW12065K11FKEA

Vishay DaleIn Stock: 19238CRCW12065K11FKEA Datasheet

MFR RecommendedRFQ

CRCW12065K11FKEAHP

Vishay DaleIn Stock: 5457CRCW12065K11FKEAHP Datasheet

MFR RecommendedRFQ

CRCW12065K11FKTA

Vishay DaleIn Stock: 34911CRCW12065K11FKTA Datasheet

MFR RecommendedRFQ

ERJ-8ENF5111V

Panasonic Electronic ComponentsIn Stock: 79686ERJ-8ENF5111V Datasheet

MFR RecommendedRFQ

RC1206FR-075K11L

YAGEOIn Stock: 106474RC1206FR-075K11L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

• Resistance value: 5.11 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1206 (3216 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)
• Number of Terminations: 2 (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Power rating may vary within the same package footprint. Packaging format (Tape & Reel, Cut Tape, Digi-Reel) does not affect electrical compatibility. Automotive AEC-Q200 certification and additional features (Anti-Sulfur, Pulse Withstanding, Moisture Resistant) are application-specific enhancements that do not preclude substitution for non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

Preferred Substitutes (Active Status, RoHS3 Compliant):

RMCF1206FT5K11, CR1206-FX-5111ELF, CRCW12065K11FKEA, and RC1206FR-075K11L are direct electrical and mechanical equivalents with Active product status and full RoHS3 compliance. These parts are suitable for new designs and general-purpose applications.

Automotive-Qualified Alternatives:

RMCF1206FT5K11, CRCW12065K11FKEA, CRCW12065K11FKEAHP, and ERJ-8ENF5111V carry AEC-Q200 automotive qualification. CRCW12065K11FKEAHP provides increased power rating (0.75W) within the same 1206 package footprint for applications requiring higher pulse withstanding capability.

Restricted Substitutes:

CRCW12065K11FKTA is RoHS non-compliant and REACH-affected; use only in applications where RoHS exemption is permitted. ERJ-8ENF5111V carries "Not For New Designs" status; use only for legacy system maintenance or replacement applications.

Packaging Considerations:

RMCF1206FT5K11 is available in Cut Tape and Digi-Reel packaging formats, offering flexibility for different assembly processes. All other substitutes are supplied in standard Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can CRCW12065K11FKEAHP (0.75W) be used as a direct replacement for RMCS1206FT5K11 (0.25W)?

A: Yes. The 0.75W rating is a superset of the 0.25W requirement. All other electrical and mechanical parameters are identical. The higher power rating does not affect circuit operation in applications designed for 0.25W components.

Q: Are there any dimensional differences between substitute parts?

A: Dimensional variations exist within acceptable tolerances. The main package footprint (1206 / 3216 Metric) is identical across all substitutes. Height-seated maximum values range from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard PCB assembly tolerances and do not affect placement or soldering.

Q: Why is ERJ-8ENF5111V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this product line. While electrically and mechanically equivalent, it should be used only for maintenance of existing systems or legacy applications. For new designs, select from Active-status alternatives.

Q: What is the difference between Anti-Sulfur and Moisture Resistant features?

A: Anti-Sulfur (RMCS1206FT5K11) provides protection against sulfur-containing environmental contaminants. Moisture Resistant (CR1206-FX-5111ELF, RC1206FR-075K11L) provides protection against moisture ingress. Both are application-specific enhancements; selection depends on environmental exposure conditions.

Q: Is CRCW12065K11FKTA suitable for RoHS-regulated applications?

A: No. CRCW12065K11FKTA is RoHS non-compliant and REACH-affected. Use only in applications where RoHS exemption is explicitly permitted or in non-regulated markets.

Q: Can packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical performance is identical regardless of packaging format.