RC0603J181CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603J181CS is a 180 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is classified as Active product status with 15,687 pieces currently in stock. The part is moisture resistant and suitable for applications requiring compact SMD resistor solutions across industrial and commercial temperature ranges. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity.

Substiute Parts

RC0603J181CS

Samsung Electro-MechanicsIn Stock: 15744RC0603J181CS Datasheet

Current PartRFQ

CRCW0201180RFKED

Vishay DaleIn Stock: 9795CRCW0201180RFKED Datasheet

UpgradeRFQ

MCR006YRTJ181

Rohm SemiconductorIn Stock: 6744MCR006YRTJ181 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC0603J181CS are classified based on strict electrical and mechanical parameter alignment:

Upgrade Substitute (CRCW0201180RFKED): This Vishay Dale component maintains identical resistance value (180 Ohms), package format (0201), power rating (0.05W), and physical dimensions. The primary distinction is improved tolerance specification (±1% versus ±5%), lower temperature coefficient (±100ppm/°C versus ±250ppm/°C), and extended upper operating temperature limit (155°C versus 125°C). This part qualifies as an upgrade substitute where tighter tolerance and enhanced thermal performance are acceptable or beneficial.

Similar Substitute (MCR006YRTJ181): The Rohm Semiconductor MCR006YRTJ181 provides electrical and mechanical equivalence with identical resistance (180 Ohms), tolerance (±5%), power rating (0.05W), package (0201), and operating temperature range (-55°C ~ 125°C). This part is functionally equivalent but carries Discontinued at DiGi Electronics product status, limiting long-term availability.

Substitution Criteria: All identified substitutes share the following mandatory parameters with the main part:

• Resistance value: 180 Ohms
• Package / Case: 0201 (0603 Metric)
• Power rating: 0.05W (1/20W)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Number of terminations: 2
• Composition: Thick Film
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC0603J181CS): The Samsung Electro-Mechanics RC0603J181CS remains the recommended primary choice based on Active product status, highest inventory availability (15,687 pieces), and established supply chain presence. This part meets all ROHS3 compliance and REACH requirements for current applications.

Upgrade Alternative (CRCW0201180RFKED): The Vishay Dale CRCW0201180RFKED is suitable for applications requiring improved tolerance performance (±1% versus ±5%) or extended operating temperature capability (155°C upper limit). This part maintains Active status with adequate inventory (9,697 pieces) and is appropriate for designs where tighter resistance tolerance or higher thermal margins provide functional benefit. Packaging format differs (Tape & Reel versus Cut Tape), which may affect procurement and assembly workflows.

Secondary Alternative (MCR006YRTJ181): The Rohm Semiconductor MCR006YRTJ181 provides functional equivalence with identical electrical specifications and operating range. However, Discontinued at DiGi Electronics status indicates limited future availability. This part is suitable only for applications where existing inventory must be utilized or where supply chain redundancy is not a requirement. Inventory is lower (6,729 pieces) compared to primary and upgrade alternatives.

Compliance Verification: All three parts maintain ROHS3 compliance, REACH Unaffected status, and identical MSL ratings (1 - Unlimited), confirming suitability for moisture-sensitive assembly environments without additional handling requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW0201180RFKED be used as a direct replacement for RC0603J181CS?

A: Yes. Both parts share identical resistance value (180 Ohms), package format (0201), power rating (0.05W), and physical dimensions (0.024" L x 0.012" W). The CRCW0201180RFKED offers improved tolerance (±1% versus ±5%) and lower temperature coefficient (±100ppm/°C versus ±250ppm/°C), making it functionally superior in applications where these parameters are critical. Packaging differs (Tape & Reel versus Cut Tape), which may require adjustment to assembly processes.

Q: What is the difference between the tolerance specifications?

A: RC0603J181CS carries ±5% tolerance, meaning the actual resistance value can vary between 171 Ohms and 189 Ohms. CRCW0201180RFKED carries ±1% tolerance, constraining the actual value between 178.2 Ohms and 181.8 Ohms. Applications requiring precise resistance values benefit from the tighter tolerance of the Vishay part.

Q: Why does MCR006YRTJ181 show Discontinued at DiGi Electronics status?

A: Discontinued at DiGi Electronics status indicates that this part number is no longer actively stocked or supported through this distribution channel. While inventory remains available (6,729 pieces), future procurement may be limited. This part is suitable for current projects but should not be selected for new designs requiring long-term supply assurance.

Q: Are all three parts suitable for the same operating temperature range?

A: RC0603J181CS and MCR006YRTJ181 both operate across -55°C ~ 125°C. CRCW0201180RFKED extends the upper limit to 155°C. Applications operating above 125°C require the Vishay part. For standard industrial temperature ranges (-55°C to 125°C), all three parts are equivalent.

Q: What packaging format differences exist between these parts?

A: RC0603J181CS is supplied in Cut Tape (CT) format. CRCW0201180RFKED is supplied in Tape & Reel (TR) format, typically used for high-volume automated assembly. MCR006YRTJ181 is available in both Cut Tape (CT) and Digi-Reel® formats. Packaging selection depends on assembly volume and equipment compatibility.

Q: Do all parts meet RoHS3 compliance requirements?

A: Yes. RC0603J181CS, CRCW0201180RFKED, and MCR006YRTJ181 are all ROHS3 Compliant with REACH Unaffected status, confirming suitability for applications subject to environmental and hazardous substance restrictions.

Q: What is the significance of MSL rating 1 (Unlimited)?

A: MSL (Moisture Sensitivity Level) rating of 1 indicates unlimited shelf life without special moisture control measures. All three parts carry this rating, eliminating the need for desiccant packaging or controlled storage environments during normal handling and assembly operations.