RMCS1206FT2R05 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT2R05 is a 2.05 Ohm ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur construction and is designed for general-purpose applications requiring precision resistance values in compact form factors. The part maintains active product status with 703 units in current inventory. Substitute parts are identified when original stock becomes unavailable or when design requirements necessitate alternative sourcing from qualified manufacturers meeting identical electrical and mechanical specifications.

Substiute Parts

RMCS1206FT2R05

Stackpole Electronics IncIn Stock: 802RMCS1206FT2R05 Datasheet

Current PartRFQ

RC1206FR-072R05L

YAGEOIn Stock: 9741RC1206FR-072R05L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT2R05 is determined by strict equivalence across the following critical parameters:

• Resistance Value: 2.05 Ohms (exact match required)
• Tolerance: ±1% (precision class must be maintained)
• Power Rating: 0.25W (thermal dissipation capability)
• Package Type: 1206 (3216 Metric) (physical and electrical footprint compatibility)
• Composition: Thick Film (material technology)
• Temperature Coefficient: ±200ppm/°C (frequency stability and thermal drift)
• Operating Temperature Range: -55°C ~ 155°C (environmental performance envelope)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected (legal and supply chain requirements)

The RC1206FR-072R05L from YAGEO meets all substitution criteria. Both parts share identical electrical specifications, package dimensions, and regulatory certifications. The primary distinction lies in surface treatment: the RMCS series features anti-sulfur construction, while the RC_L series incorporates moisture-resistant treatment. Both approaches provide environmental protection suitable for standard PCB assembly and deployment conditions.

Parameter Comparison

Engineering Selection Recommendations

Both the RMCS1206FT2R05 and RC1206FR-072R05L are active products with full ROHS3 compliance and REACH unaffected status, qualifying them for use in regulated applications and modern supply chains. Selection between these parts should be based on environmental exposure requirements and manufacturer availability:

The RMCS1206FT2R05 is appropriate for applications where sulfur contamination in the operating environment presents a concern. The RC1206FR-072R05L is suitable for general-purpose applications and environments where moisture resistance is the primary environmental protection requirement. Both parts are electrically and mechanically interchangeable within standard PCB assembly processes. The minor dimensional variation in width (0.061" versus 0.063") falls within standard 1206 package tolerances and does not affect PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can RC1206FR-072R05L be used as a direct replacement for RMCS1206FT2R05?

A: Yes. Both parts meet identical electrical specifications (2.05 Ohms ±1%, 0.25W, ±200ppm/°C, -55°C to 155°C) and share the same 1206 package footprint. The difference in surface treatment (anti-sulfur versus moisture-resistant) does not affect electrical performance or standard PCB assembly compatibility.

Q: Are there any dimensional incompatibilities between these parts?

A: No. Both parts conform to 1206 (3216 Metric) package standards. The width dimension varies by 0.002" (0.05mm), which is within standard package tolerance and does not impact PCB layout or reflow soldering processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both RMCS1206FT2R05 and RC1206FR-072R05L are ROHS3 compliant and REACH unaffected, meeting current environmental and supply chain regulations.

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

A: Anti-sulfur treatment protects against sulfur-containing atmospheric contaminants and corrosive gases. Moisture-resistant treatment provides protection against humidity and condensation. Both are environmental protection mechanisms; selection depends on the specific deployment environment.

Q: Can these parts be used interchangeably in high-precision applications?

A: Yes, provided the application tolerance requirements do not exceed ±1%. Both parts share identical tolerance specifications and temperature coefficients, making them suitable for precision circuits within this tolerance class.