RC0603F4993CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603F4993CS is a 499 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and regulatory compliance can be maintained across different manufacturers while preserving circuit performance and reliability requirements.

Substiute Parts

RC0603F4993CS

Samsung Electro-MechanicsIn Stock: 930RC0603F4993CS Datasheet

Current PartRFQ

CRCW0201499KFKED

Vishay DaleIn Stock: 56164CRCW0201499KFKED Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603F4993CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 499 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Composition: Thick Film (exact match required)

Mechanical Equivalence Requirements:

• Package designation: 0201 (0603 Metric) (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Height seated maximum: 0.010" / 0.26mm (exact match required)
• Number of terminations: 2 (exact match required)

Regulatory & Compliance Equivalence:

• RoHS3 Compliance (required)
• Moisture Sensitivity Level 1 (required)
• REACH Unaffected status (required)

The substitute part CRCW0201499KFKED (Vishay Dale) meets all electrical, mechanical, and regulatory requirements for direct substitution. Variations in temperature coefficient and maximum operating temperature do not disqualify substitution when the primary circuit application operates within the overlapping temperature range of -55°C to 125°C.

Parameter Comparison

Engineering Selection Recommendations

Both the RC0603F4993CS and CRCW0201499KFKED are Active product status components with full RoHS3 compliance and REACH Unaffected designation. Selection between these parts should be based on:

Availability and Lead Time: The CRCW0201499KFKED (Vishay Dale) maintains significantly higher inventory (56,057 pcs) compared to the RC0603F4993CS (839 pcs), making it the preferred choice for applications with extended procurement timelines or high-volume production requirements.

Packaging Format: The RC0603F4993CS is supplied in Cut Tape (CT) format, while the CRCW0201499KFKED is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and handling equipment compatibility.

Temperature Performance: The CRCW0201499KFKED offers an extended operating temperature range (-55°C to 155°C) and superior temperature coefficient (±100ppm/°C versus ±250ppm/°C). For applications operating near the upper temperature limit of 125°C or requiring tighter temperature stability, the Vishay part provides enhanced performance margin.

Regulatory Compliance: Both parts satisfy identical regulatory requirements (RoHS3, REACH Unaffected, EAR99 ECCN classification, HTSUS 8533.21.0030).

Frequently Asked Questions (FAQ)

Q: Can CRCW0201499KFKED be used as a direct replacement for RC0603F4993CS in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance value (499 kOhms), tolerance (±1%), power rating (0.05W), package designation (0201), and physical dimensions (0.024" x 0.012" / 0.60mm x 0.30mm). Regulatory compliance is identical. The primary consideration is packaging format: RC0603F4993CS uses Cut Tape while CRCW0201499KFKED uses Tape & Reel, which may require different assembly equipment.

Q: What is the significance of the different temperature coefficients (±250ppm/°C vs ±100ppm/°C)?

A: Temperature coefficient defines resistance value drift per degree Celsius change. The CRCW0201499KFKED exhibits lower drift (±100ppm/°C) compared to RC0603F4993CS (±250ppm/°C). For circuits operating across wide temperature ranges or requiring tight resistance stability, the lower coefficient provides superior performance. Both values are acceptable for standard applications operating within -55°C to 125°C.

Q: Are there any PCB layout or assembly considerations when substituting these parts?

A: No. Both parts share identical package designation (0201), physical dimensions (0.024" L x 0.012" W), and height (0.010" max). PCB footprints, solder pad patterns, and pick-and-place equipment settings remain unchanged. The only assembly consideration is tape format compatibility: Cut Tape (CT) versus Tape & Reel (TR) may require different feeder systems.

Q: Do both parts meet the same moisture and environmental standards?

A: Yes. Both RC0603F4993CS and CRCW0201499KFKED carry identical Moisture Sensitivity Level 1 (Unlimited), indicating no moisture bake-out requirement before soldering. Both are RoHS3 Compliant and REACH Unaffected, meeting identical environmental and regulatory standards.

Q: Which part should be selected for new designs?

A: Selection depends on supply chain requirements. CRCW0201499KFKED (Vishay Dale) is recommended for new designs due to higher inventory availability (56,057 pcs), extended operating temperature range (-55°C to 155°C), and superior temperature coefficient (±100ppm/°C). RC0603F4993CS remains a valid alternative when Cut Tape packaging is specifically required or when Samsung Electro-Mechanics is a preferred supplier.