RC0603J680CS Equivalent & Substitute Parts

Part Overview

The RC0603J680CS is a 68 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) in a 0201 (0603 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is suitable for general-purpose resistive applications requiring moisture resistance in compact form factors. Equivalent and substitute parts are identified based on matching resistance value, power rating, package dimensions, and operating temperature range, with tolerance and temperature coefficient variations noted for specific upgrade options.

Substiute Parts

RC0603J680CS

Samsung Electro-MechanicsIn Stock: 1797RC0603J680CS Datasheet

Current PartRFQ

RC0603F680CS

Samsung Electro-MechanicsIn Stock: 1169RC0603F680CS Datasheet

UpgradeRFQ

CRCW020168R0FKED

Vishay DaleIn Stock: 43865CRCW020168R0FKED Datasheet

UpgradeRFQ

MCR006YRTJ680

Rohm SemiconductorIn Stock: 1278MCR006YRTJ680 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC0603J680CS is determined by strict equivalence in the following parameters: resistance value (68 Ohms), power rating (0.05W), package type (0201 / 0603 Metric), composition (thick film), and operating temperature range (-55°C ~ 125°C). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories:

Upgrade Substitutes: Parts with improved tolerance (±1% versus ±5%) and/or enhanced temperature coefficient performance while maintaining all core parameters. These include RC0603F680CS (Samsung Electro-Mechanics) and CRCW020168R0FKED (Vishay Dale).

Similar Substitutes: Parts with matching tolerance and core specifications but with product status changes or packaging variations. MCR006YRTJ680 (Rohm Semiconductor) is classified as discontinued at DiGi Electronics but maintains electrical and mechanical equivalence.

Parameter Comparison

Engineering Selection Recommendations

RC0603F680CS (Samsung Electro-Mechanics): This part is a direct upgrade substitute with improved tolerance specification (±1% versus ±5%) while maintaining identical package dimensions, power rating, and operating temperature range. Both parts are Active status with ROHS3 compliance and MSL 1 rating. Selection of this part is appropriate for applications requiring tighter resistance tolerance without any mechanical or thermal constraints.

CRCW020168R0FKED (Vishay Dale): This part provides the highest tolerance specification (±1%) and the lowest temperature coefficient (±100ppm/°C) among all listed substitutes. The operating temperature range extends to 155°C, exceeding the original specification of 125°C. Packaging is supplied as Tape & Reel (TR) versus Cut Tape (CT) for the main part. This part is Active status with ROHS3 compliance and MSL 1 rating. Selection is appropriate for applications requiring superior temperature stability and extended operating temperature capability.

MCR006YRTJ680 (Rohm Semiconductor): This part maintains electrical equivalence with matching tolerance (±5%), temperature coefficient (±250ppm/°C), and operating temperature range (-55°C ~ 125°C). However, product status is listed as discontinued at DiGi Electronics. All other specifications including package dimensions, power rating, RoHS compliance, and MSL rating are equivalent. Selection of this part is not recommended for new designs due to discontinued status, but may be considered for legacy system maintenance where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can RC0603F680CS be used as a direct replacement for RC0603J680CS?

A: Yes. RC0603F680CS is a direct mechanical and electrical substitute with identical package dimensions (0201 / 0603 Metric), power rating (0.05W), operating temperature range (-55°C ~ 125°C), and physical height (0.010" max). The primary difference is improved tolerance specification (±1% versus ±5%). Both parts are Active status with ROHS3 compliance and MSL 1 rating.

Q: What is the difference between the tolerance specifications?

A: The RC0603J680CS has ±5% tolerance, meaning the actual resistance value can vary between 64.6 Ohms and 71.4 Ohms. The RC0603F680CS and CRCW020168R0FKED have ±1% tolerance, meaning the actual resistance value can vary between 67.32 Ohms and 68.68 Ohms. Applications requiring tighter resistance accuracy should use the ±1% tolerance parts.

Q: Does CRCW020168R0FKED have a higher operating temperature limit?

A: Yes. CRCW020168R0FKED operates from -55°C to 155°C, compared to -55°C to 125°C for RC0603J680CS. This provides an additional 30°C of upper temperature capability. The temperature coefficient is also superior at ±100ppm/°C versus ±250ppm/°C for the original part.

Q: What is the difference in packaging between the main part and CRCW020168R0FKED?

A: RC0603J680CS is supplied in Cut Tape (CT) packaging, while CRCW020168R0FKED is supplied in Tape & Reel (TR) packaging. Both packaging formats are standard for surface mount components. Tape & Reel is typically used for high-volume automated assembly, while Cut Tape is used for lower-volume or manual assembly applications.

Q: Why is MCR006YRTJ680 listed as discontinued?

A: MCR006YRTJ680 is listed as discontinued at DiGi Electronics, indicating that this specific part number is no longer actively stocked or supported through this distribution channel. While the part maintains full electrical and mechanical equivalence to RC0603J680CS, new designs should not rely on this part number due to availability constraints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (RC0603F680CS, CRCW020168R0FKED, and MCR006YRTJ680) are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), matching the compliance profile of the original RC0603J680CS.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes, from a mechanical and thermal standpoint. All parts share identical package dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), height (0.010" max / 0.26mm), and two-termination configuration. Electrical interchangeability depends on the application's tolerance and temperature coefficient requirements. Applications with strict tolerance requirements should use RC0603F680CS or CRCW020168R0FKED.