RMCF1206FT2M49 Equivalent & Substitute Parts

Part Overview

The RMCF1206FT2M49 is a 2.49 MOhm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This automotive-grade component meets AEC-Q200 qualification standards and operates across -55°C to 155°C. The part is currently active in production with 5794 units in stock. Equivalent and substitute parts are identified to support supply chain flexibility, design redundancy, and procurement optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

RMCF1206FT2M49

Stackpole Electronics IncIn Stock: 5806RMCF1206FT2M49 Datasheet

Current PartRFQ

CRCW12062M49FKEA

Vishay DaleIn Stock: 17428CRCW12062M49FKEA Datasheet

DirectRFQ

KTR18EZPF2494

Rohm SemiconductorIn Stock: 14914KTR18EZPF2494 Datasheet

UpgradeRFQ

RC1206FR-072M49L

YAGEOIn Stock: 158993RC1206FR-072M49L Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (2.49 MOhms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). All identified substitute parts meet these core requirements. Variations in temperature coefficient (±100ppm/°C vs ±200ppm/°C), physical dimensions within tolerance, and manufacturer-specific features do not preclude substitution when electrical performance and environmental ratings remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

CRCW12062M49FKEA (Vishay Dale) and KTR18EZPF2494 (Rohm Semiconductor) are direct equivalents with AEC-Q200 automotive qualification matching the primary part specification. Both feature improved temperature coefficient (±100ppm/°C) compared to the RMCF1206FT2M49 (±200ppm/°C), providing enhanced stability in temperature-sensitive applications. RC1206FR-072L (YAGEO) meets all electrical and environmental requirements with moisture-resistant construction and significantly higher inventory availability (158920 units). Selection should prioritize application requirements: automotive-qualified designs should specify CRCW12062M49FKEA or KTR18EZPF2494; applications requiring maximum supply availability should consider RC1206FR-072M49L. All parts maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can CRCW12062M49FKEA replace RMCF1206FT2M49 in automotive applications? A: Yes. Both parts meet AEC-Q200 automotive qualification, share identical resistance (2.49 MOhms), tolerance (±1%), power rating (0.25W), package (1206), and operating temperature range (-55°C to 155°C). CRCW12062M49FKEA features a lower temperature coefficient (±100ppm/°C vs ±200ppm/°C), which may improve performance in temperature-critical circuits.

Q: What is the difference between KTR18EZPF2494 and the primary part? A: KTR18EZPF2494 is functionally equivalent with identical electrical specifications and AEC-Q200 rating. It includes high-voltage capability as an additional feature and maintains ±100ppm/°C temperature coefficient. Physical height differs slightly (0.026" vs 0.028"), remaining within standard PCB assembly tolerances.

Q: Is RC1206FR-072M49L suitable for automotive designs? A: RC1206FR-072M49L meets all core electrical and environmental requirements (2.49 MOhms, ±1%, 0.25W, 1206 package, -55°C to 155°C). However, it does not carry AEC-Q200 automotive qualification. Use in automotive applications requires design review and qualification assessment.

Q: Are there package compatibility concerns between these parts? A: All parts use 1206 (3216 Metric) package with identical footprints. Physical dimensions vary within manufacturing tolerance (length 0.122" to 0.126", height 0.024" to 0.028"), presenting no PCB assembly or thermal management issues.

Q: Which substitute offers the best supply availability? A: RC1206FR-072M49L has the highest inventory (158920 units) compared to CRCW12062M49FKEA (17399 units) and KTR18EZPF2494 (14843 units). For non-automotive applications requiring immediate availability, RC1206FR-072M49L is the optimal choice.

Q: Do all substitutes maintain ROHS3 and MSL 1 compliance? A: Yes. All four parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage protocols.