RMCS1206FT2R49 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT2R49 is a 2.49 Ohm ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur coating and is designed for general-purpose applications requiring precision resistance values in compact form factors. The part maintains active product status with 963 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Substiute Parts

RMCS1206FT2R49

Stackpole Electronics IncIn Stock: 1005RMCS1206FT2R49 Datasheet

Current PartRFQ

RC1206FR-072R49L

YAGEOIn Stock: 78149RC1206FR-072R49L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT2R49 is determined by strict alignment of the following critical parameters:

• Resistance value: 2.49 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

The RC1206FR-072R49L from YAGEO meets all substitution criteria with identical electrical specifications and equivalent mechanical dimensions within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both the RMCS1206FT2R49 and RC1206FR-072R49L maintain active product status and satisfy identical compliance requirements. The RMCS1206FT2R49 features anti-sulfur coating, while the RC1206FR-072R49L incorporates moisture-resistant characteristics. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and deployment. Selection between these parts should be based on application-specific environmental exposure requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can RC1206FR-072R49L replace RMCS1206FT2R49 in existing designs?

A: Yes. Both components share identical electrical specifications (2.49 Ohms ±1%, 0.25W), temperature characteristics (±200ppm/°C, -55°C to 155°C operating range), and package dimensions (1206/3216 Metric). Mechanical dimensions differ by 0.002" (0.05mm) in width, which is within standard PCB pad tolerance for 1206 packages.

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

A: Anti-sulfur coating protects against sulfur-containing atmospheric contaminants. Moisture-resistant coating provides protection against humidity and moisture ingress. Both are thick film surface treatments that do not affect electrical performance or thermal characteristics.

Q: Are both parts suitable for high-reliability applications?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, indicating suitability for standard industrial and commercial applications. Specific high-reliability requirements should be evaluated against application documentation and environmental specifications.

Q: What is the significance of the 0.002" width difference?

A: The width variance (1.55mm vs 1.60mm) falls within standard manufacturing tolerances for 1206 chip resistors and does not affect PCB pad compatibility or electrical performance. Both components are mechanically interchangeable in standard 1206 footprints.