RMCS1206FT205R Equivalent & Substitute Parts

Part Overview

The RMCS1206FT205R is a 205 Ohm ±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 with anti-sulfur construction. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements mandate specific manufacturer certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RMCS1206FT205R

Stackpole Electronics IncIn Stock: 879RMCS1206FT205R Datasheet

Current PartRFQ

CRCW1206205RFKEA

Vishay DaleIn Stock: 14270CRCW1206205RFKEA Datasheet

MFR RecommendedRFQ

ERJ-8ENF2050V

Panasonic Electronic ComponentsIn Stock: 51625ERJ-8ENF2050V Datasheet

MFR RecommendedRFQ

RC1206FR-07205RL

YAGEOIn Stock: 11009RC1206FR-07205RL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT205R is determined by strict equivalence across the following parameters: resistance value (205 Ohms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99). All identified substitute parts meet these core electrical and mechanical requirements. Dimensional variations within the 1206 package specification and differences in special features (anti-sulfur, automotive AEC-Q200, moisture resistant) do not disqualify substitution when the primary electrical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

CRCW1206205RFKEA (Vishay Dale) and RC1206FR-07205RL (YAGEO) are preferred substitutes for new designs. Both parts maintain Active product status and provide full electrical equivalence to the RMCS1206FT205R. CRCW1206205RFKEA includes automotive AEC-Q200 certification, suitable for applications requiring automotive-grade reliability. RC1206FR-07205RL offers moisture-resistant construction with Active status and equivalent performance characteristics.

ERJ-8ENF2050V (Panasonic) is electrically equivalent and includes AEC-Q200 certification but carries Not For New Designs product status. This part remains available in high inventory quantities and may be used in legacy system maintenance or non-critical applications where new design constraints do not apply.

Frequently Asked Questions (FAQ)

Q: Can CRCW1206205RFKEA directly replace RMCS1206FT205R in existing designs?

A: Yes. Both parts share identical electrical specifications: 205 Ohms ±1%, 0.25W power rating, 1206 package, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. The CRCW1206205RFKEA adds automotive AEC-Q200 qualification, which does not prevent substitution in non-automotive applications.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: Anti-sulfur construction (RMCS1206FT205R) protects against sulfur-containing environmental contaminants. Moisture-resistant construction (RC1206FR-07205RL) provides protection against moisture ingress. Both are thick film resistor enhancements that do not affect electrical equivalence for substitution purposes.

Q: Why is ERJ-8ENF2050V marked "Not For New Designs"?

A: Product status reflects manufacturer lifecycle decisions. ERJ-8ENF2050V remains electrically equivalent and available in inventory but is not recommended for new design implementations. Existing applications using this part may continue operation without change.

Q: Are dimensional variations between substitute parts significant?

A: All parts conform to 1206 (3216 Metric) package specification. Minor dimensional variations (length 0.122" to 0.126", height 0.024" to 0.028") fall within standard package tolerances and do not affect PCB footprint compatibility or electrical performance.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All listed parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.