RC3216F2494CS 2.49 MOhms ±1% 1/4W 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC3216F2494CS is a 2.49 MOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with 841 pieces currently in stock. The part is designed for general-purpose applications requiring moisture-resistant thick film construction with standard industrial operating temperature range. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and application-specific options including automotive-qualified variants.

Substiute Parts

RC3216F2494CS

Samsung Electro-MechanicsIn Stock: 868RC3216F2494CS Datasheet

Current PartRFQ

RC1206FR-072M49L

YAGEOIn Stock: 158993RC1206FR-072M49L Datasheet

DirectRFQ

KTR18EZPF2494

Rohm SemiconductorIn Stock: 14914KTR18EZPF2494 Datasheet

UpgradeRFQ

RMCF1206FT2M49

Stackpole Electronics IncIn Stock: 5806RMCF1206FT2M49 Datasheet

UpgradeRFQ

CRCW12062M49FKEA

Vishay DaleIn Stock: 17428CRCW12062M49FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3216F2494CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2.49 MOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

• Temperature coefficient: ±100ppm/°C or ±200ppm/°C (both acceptable for general applications)
• Physical dimensions: Minor variations within 1206 package specification (length 3.10mm to 3.20mm, height 0.60mm to 0.70mm)
• Packaging format: Tape & Reel acceptable as equivalent to standard packaging
• Automotive qualification (AEC-Q200): Optional enhancement, not required for substitution

Substitution Categories:

Direct Equivalent: RC1206FR-072M49L (YAGEO) - Identical electrical specifications, standard industrial grade

Upgrade Options: KTR18EZPF2494 (Rohm Semiconductor) and RMCF1206FT2M49 (Stackpole Electronics Inc) - Automotive AEC-Q200 qualified variants with enhanced reliability for demanding applications

Similar Alternative: CRCW12062M49FKEA (Vishay Dale) - Automotive AEC-Q200 qualified with optimized thermal performance

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: Select RC1206FR-072M49L (YAGEO) as the primary direct equivalent. This part maintains identical electrical and thermal specifications with superior inventory availability (158,920 pieces). Both parts are Active status with ROHS3 compliance and MSL 1 rating, ensuring compatibility in general-purpose circuit designs without application-specific constraints.

For Automotive and High-Reliability Applications: Select KTR18EZPF2494 (Rohm Semiconductor) or CRCW12062M49FKEA (Vishay Dale) when AEC-Q200 automotive qualification is required. Both parts meet automotive industry standards with enhanced quality assurance and reliability documentation. KTR18EZPF2494 offers high-voltage capability, while CRCW12062M49FKEA provides optimized thermal performance with lowest seated height (0.024").

For Cost-Optimized Automotive Applications: RMCF1206FT2M49 (Stackpole Electronics Inc) provides AEC-Q200 qualification at lower inventory levels. Note the temperature coefficient specification of ±200ppm/°C, which remains within acceptable tolerance for most automotive circuits but should be evaluated for precision analog applications requiring ±100ppm/°C stability.

Supply Chain Continuity: All five parts are Active status with ROHS3 compliance. YAGEO RC1206FR-072M49L offers the highest inventory buffer for long-term supply security. Automotive-qualified variants (Rohm, Stackpole, Vishay Dale) provide alternative sourcing to mitigate single-supplier risk.

Frequently Asked Questions (FAQ)

Q: Can RC1206FR-072M49L directly replace RC3216F2494CS without circuit redesign?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (2.49 MOhms), tolerance (±1%), power rating (0.25W), package (1206), temperature range (-55°C ~ 155°C), and temperature coefficient (±100ppm/°C). Physical dimensions are within 1206 specification tolerance. No circuit redesign is required.

Q: What is the difference between standard-grade and AEC-Q200 automotive-qualified parts?

A: AEC-Q200 qualification (KTR18EZPF2494, RMCF1206FT2M49, CRCW12062M49FKEA) indicates compliance with automotive industry reliability standards including enhanced quality testing, failure rate documentation, and traceability requirements. Standard-grade parts (RC3216F2494CS, RC1206FR-072M49L) are suitable for general industrial applications. Selection depends on application requirements, not electrical performance.

Q: Why does RMCF1206FT2M49 have ±200ppm/°C temperature coefficient while others specify ±100ppm/°C?

A: Temperature coefficient variation reflects different manufacturing processes and material compositions within the thick film resistor technology. Both ±100ppm/°C and ±200ppm/°C are acceptable for the 2.49 MOhm value in most circuit applications. For precision analog circuits requiring tighter temperature stability, select parts with ±100ppm/°C specification.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All identified substitute parts are supplied in Tape & Reel (TR) format, standard for automated assembly. The original RC3216F2494CS is available in standard packaging. Tape & Reel format is functionally equivalent and preferred for high-volume production environments.

Q: What is MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 indicates the component has unlimited shelf life under normal storage conditions without requiring special moisture-control packaging or baking procedures prior to assembly. All five parts carry MSL 1 rating, ensuring identical handling requirements.

Q: Can automotive-qualified parts be used in non-automotive applications?

A: Yes. AEC-Q200 qualified parts (KTR18EZPF2494, RMCF1206FT2M49, CRCW12062M49FKEA) exceed standard industrial specifications and are fully compatible with general-purpose applications. They provide enhanced reliability margin at potentially higher cost.

Q: Which substitute offers the best thermal performance?

A: CRCW12062M49FKEA (Vishay Dale) provides the lowest seated height specification (0.024" / 0.60mm), indicating optimized thermal design. This characteristic may provide marginal thermal performance advantage in space-constrained applications, though all parts operate within identical temperature range (-55°C ~ 155°C).