RC6432F2490CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F2490CS is a 249 Ohms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and maintains ROHS3 compliance with MSL 1 rating. The part is currently in active production status with 1025 units in stock. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or specific feature requirements such as automotive qualification or enhanced pulse withstanding capability.

Substiute Parts

RC6432F2490CS

Samsung Electro-MechanicsIn Stock: 1100RC6432F2490CS Datasheet

Current PartRFQ

RC2512FK-07249RL

YAGEOIn Stock: 15576RC2512FK-07249RL Datasheet

DirectRFQ

CRCW2512249RFKEG

Vishay DaleIn Stock: 3496CRCW2512249RFKEG Datasheet

SimilarRFQ

CRCW2512249RFKEGHP

Vishay DaleIn Stock: 4646CRCW2512249RFKEGHP Datasheet

SimilarRFQ

RMCF2512FT249R

Stackpole Electronics IncIn Stock: 10780RMCF2512FT249R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F2490CS are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents (Identical Specifications): Parts that match all critical parameters: 249 Ohms resistance, ±1% tolerance, 1W power rating, 2512 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, ROHS3 compliance, and MSL 1 rating. These parts are functionally interchangeable in standard applications.

Enhanced Capability Substitutes (Upgraded Features): Parts that maintain core electrical specifications (249 Ohms, ±1%, 2512 package, temperature range, compliance) but include additional qualifications such as AEC-Q200 automotive certification or increased power rating (1.5W). These substitutes are suitable for applications requiring automotive-grade reliability or higher pulse withstanding capability.

Substitution Criteria:

• Resistance value: 249 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 2512 (6432 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature: -55°C to 155°C (exact match required)
• RoHS and MSL compliance: ROHS3 and MSL 1 (exact match required)
• Power rating: 1W minimum (1.5W acceptable as upgrade)
• Composition: Thick Film (exact match required)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Equivalent Functionality): RC2512FK-07249RL (YAGEO) is a direct functional equivalent with identical electrical specifications and packaging. This part maintains all compliance requirements and is suitable for one-to-one substitution in standard industrial applications. Inventory availability is 15,488 units.

For Automotive or Enhanced Reliability Applications: CRCW2512249RFKEG (Vishay Dale) and RMCF2512FT249R (Stackpole Electronics) both provide AEC-Q200 automotive qualification while maintaining identical core electrical specifications. These parts are appropriate for automotive-grade circuit designs requiring enhanced reliability standards. Inventory: 3,400 and 10,748 units respectively.

For High-Stress or Pulse-Intensive Circuits: CRCW2512249RFKEGHP (Vishay Dale) offers increased power rating (1.5W) and pulse withstanding capability within the same 2512 package footprint. This part is suitable for applications experiencing transient power spikes or sustained thermal stress. Inventory: 4,546 units.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and the specified operating temperature range of -55°C to 155°C, ensuring regulatory and environmental compatibility with the original RC6432F2490CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-07249RL replace RC6432F2490CS in any application? A: Yes. RC2512FK-07249RL is a direct equivalent with identical resistance (249 Ohms), tolerance (±1%), power rating (1W), package (2512), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and compliance status (ROHS3, MSL 1). No design changes are required.

Q: What is the difference between the Vishay Dale CRCW2512249RFKEG and CRCW2512249RFKEGHP? A: Both parts share identical electrical specifications (249 Ohms, ±1%, 2512 package, AEC-Q200). The primary difference is power rating: CRCW2512249RFKEG is rated 1W, while CRCW2512249RFKEGHP is rated 1.5W with pulse withstanding capability. The RFKEGHP variant is suitable for higher thermal stress applications.

Q: Are all substitute parts automotive-qualified? A: No. RC2512FK-07249RL (YAGEO) does not specify AEC-Q200 qualification. CRCW2512249RFKEG, CRCW2512249RFKEGHP (Vishay Dale), and RMCF2512FT249R (Stackpole) all carry AEC-Q200 automotive qualification. Select based on application requirements.

Q: Do all parts fit the same PCB footprint? A: Yes. All parts use the 2512 (6432 Metric) package. Physical dimensions are within acceptable tolerance ranges for standard PCB layouts. Specific dimension variations (length 6.30-6.35mm, width 3.10-3.20mm, height 0.65-0.70mm) are within typical PCB design margins.

Q: What is MSL 1 rating and why does it matter? A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1, meaning they can be stored and handled under standard conditions without special moisture control procedures.

Q: Can I use a 1.5W part (CRCW2512249RFKEGHP) in place of a 1W part (RC6432F2490CS)? A: Yes. Higher power rating is a non-limiting upgrade. The 1.5W part will operate safely in circuits designed for 1W dissipation. This substitution is appropriate for applications where thermal margin or pulse withstanding is beneficial.

Q: Are all parts ROHS3 compliant? A: Yes. All listed parts carry ROHS3 compliance certification, meeting current regulatory requirements for hazardous substance restrictions.