RC1005F2490CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F2490CS is a 249 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 1/16W (0.063W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RC1005F2490CS

Samsung Electro-MechanicsIn Stock: 905RC1005F2490CS Datasheet

Current PartRFQ

CR0402-FX-2490GLF

Bourns Inc.In Stock: 56472CR0402-FX-2490GLF Datasheet

DirectRFQ

RC0402FR-07249RL

YAGEOIn Stock: 360596RC0402FR-07249RL Datasheet

DirectRFQ

ERJ-2RKF2490X

Panasonic Electronic ComponentsIn Stock: 290722ERJ-2RKF2490X Datasheet

UpgradeRFQ

AC0402FR-07249RL

YAGEOIn Stock: 29808AC0402FR-07249RL Datasheet

SimilarRFQ

CRCW0402249RFKED

Vishay DaleIn Stock: 5489CRCW0402249RFKED Datasheet

SimilarRFQ

CRCW0402249RFKTD

Vishay DaleIn Stock: 20172CRCW0402249RFKTD Datasheet

SimilarRFQ

RMCF0402FT249R

Stackpole Electronics IncIn Stock: 265861RMCF0402FT249R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F2490CS are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

• Resistance value: 249 Ohms
• Tolerance: ±1%
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C to 155°C
• Terminations: 2
• Moisture Sensitivity Level: 1 (Unlimited)

Substitution Categories:

Direct Equivalents maintain identical power rating (0.063W / 1/16W) and all electrical specifications. These parts are fully interchangeable without circuit redesign.

Upgrade Substitutes feature increased power rating (0.1W / 1/10W) while maintaining all other electrical parameters. These provide enhanced thermal performance and are backward compatible.

Compliance Variants include automotive-grade AEC-Q200 certification or enhanced moisture resistance features while preserving core electrical specifications. These are suitable for applications requiring specific environmental or automotive standards.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: CR0402-FX-2490GLF (Bourns Inc.) and RC0402FR-07249RL (YAGEO) are direct functional equivalents with identical electrical and mechanical specifications. Both maintain ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these options is based on supply chain availability and procurement preferences.

For Automotive Applications: AC0402FR-07249RL (YAGEO), CRCW0402249RFKED (Vishay Dale), and RMCF0402FT249R (Stackpole Electronics Inc) incorporate AEC-Q200 automotive qualification while maintaining the 0.063W power rating and ROHS3 compliance. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability standards.

For Enhanced Thermal Performance: ERJ-2RKF2490X (Panasonic Electronic Components) provides increased power dissipation capability at 0.1W (1/10W) with AEC-Q200 automotive qualification. This upgrade option is backward compatible and suitable for applications requiring higher thermal margins while maintaining all other electrical specifications.

Compliance Considerations: CRCW0402249RFKTD (Vishay Dale) is RoHS non-compliant and REACH affected. This part is not recommended for new designs or applications requiring regulatory compliance with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-2490GLF directly replace RC1005F2490CS without circuit modification?

A: Yes. Both parts share identical resistance (249 Ω), tolerance (±1%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct substitution is electrically and mechanically compatible.

Q: What is the difference between the standard RC1005F2490CS and the automotive-grade AC0402FR-07249RL?

A: AC0402FR-07249RL includes AEC-Q200 automotive qualification and moisture resistant construction. All core electrical parameters remain identical. The automotive qualification indicates enhanced reliability testing and qualification for automotive applications. Selection depends on application requirements.

Q: Is ERJ-2RKF2490X a suitable replacement for RC1005F2490CS?

A: ERJ-2RKF2490X is a compatible upgrade substitute. It maintains all electrical specifications (249 Ω, ±1%, ±100ppm/°C, -55°C to 155°C) but provides increased power rating (0.1W versus 0.063W). This higher power rating offers improved thermal performance and is backward compatible with circuits designed for the 0.063W rating.

Q: Why is CRCW0402249RFKTD not recommended?

A: CRCW0402249RFKTD is RoHS non-compliant and REACH affected, failing to meet current environmental and regulatory standards. For new designs and applications requiring compliance with modern environmental regulations, ROHS3-compliant alternatives are required.

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

A: Most substitute parts are supplied in Tape & Reel packaging. CRCW0402249RFKED is available in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging format with supplier specifications for automated assembly compatibility.

Q: What is the significance of Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture bake-out requirements. All listed substitute parts maintain MSL 1 rating, ensuring consistent handling and storage procedures across all equivalent options.