RC1608J3R6CS Equivalent & Substitute Parts

Part Overview

The RC1608J3R6CS is a 3.6 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are maintained across alternative manufacturers while meeting or exceeding the original component's performance characteristics.

Substiute Parts

RC1608J3R6CS

Samsung Electro-MechanicsIn Stock: 1000RC1608J3R6CS Datasheet

Current PartRFQ

KTR03EZPF3R60

Rohm SemiconductorIn Stock: 1248KTR03EZPF3R60 Datasheet

UpgradeRFQ

RC0603JR-073R6L

YAGEOIn Stock: 14627RC0603JR-073R6L Datasheet

UpgradeRFQ

RMCF0603FT3R60

Stackpole Electronics IncIn Stock: 112179RMCF0603FT3R60 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1608J3R6CS are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain the 3.6 Ohm resistance value and 0.1W power rating. Tolerance variations (±5% or ±1%) are acceptable as tighter tolerances represent functional upgrades without introducing incompatibility.

Mechanical Compatibility: All substitute parts utilize the 0603 (1608 Metric) package format with identical termination count (2 terminations) and compatible physical dimensions within specified tolerances.

Environmental Specifications: All substitute parts operate across the -55°C ~ 155°C temperature range, matching or exceeding the original component's thermal performance. Temperature coefficient variations (±200ppm/°C to ±300ppm/°C) remain within acceptable engineering margins for thick film resistor applications.

Compliance & Certification: All substitute parts maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status. Automotive-rated variants (AEC-Q200) represent enhanced reliability certifications suitable for equivalent or more demanding applications.

Composition & Features: All parts utilize thick film construction with moisture-resistant characteristics, ensuring functional parity in standard operating environments.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Specifications): RC0603JR-073R6L (YAGEO) provides direct functional equivalence to the RC1608J3R6CS with identical resistance, tolerance (±5%), power rating, and operating temperature range. This part is suitable for direct substitution in applications where the original Samsung component is unavailable.

Enhanced Tolerance Variants: KTR03EZPF3R60 (Rohm Semiconductor) and RMCF0603FT3R60 (Stackpole Electronics Inc) both offer ±1% tolerance compared to the original ±5% specification. These parts provide improved precision and are suitable for applications requiring tighter resistance tolerances. Both components carry AEC-Q200 automotive qualification, indicating enhanced reliability screening and suitability for automotive or mission-critical applications.

Compliance Considerations: All substitute parts maintain RoHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing processes and long-term storage requirements. The automotive-rated variants (Rohm and Stackpole) are appropriate for applications subject to automotive environmental and reliability standards.

Temperature Performance: Substitute parts from Rohm, YAGEO, and Stackpole feature ±200ppm/°C temperature coefficient compared to the original ±300ppm/°C specification, representing improved thermal stability across the -55°C ~ 155°C operating range.

Frequently Asked Questions (FAQ)

Q: Can KTR03EZPF3R60 or RMCF0603FT3R60 be used as direct replacements for RC1608J3R6CS?

A: Yes. Both parts maintain identical resistance (3.6 Ohms), power rating (0.1W), package format (0603), and operating temperature range (-55°C ~ 155°C). The ±1% tolerance represents an improvement over the original ±5% specification and does not introduce incompatibility. Both parts are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between the ±5% and ±1% tolerance variants?

A: Tolerance specifies the acceptable deviation from the nominal 3.6 Ohm resistance value. The ±5% tolerance allows resistance between 3.42 and 3.78 Ohms, while ±1% tolerance constrains the range to 3.564 and 3.636 Ohms. Applications requiring precise resistance values benefit from ±1% variants, while general-purpose applications function identically with either tolerance.

Q: Are the physical dimensions identical across all substitute parts?

A: All parts conform to the 0603 (1608 Metric) package standard with dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) and maximum seated height of 0.022" (0.55mm). RMCF0603FT3R60 specifies 0.061" L x 0.031" W (1.55mm x 0.80mm), which remains within standard 0603 package tolerances and is mechanically compatible.

Q: What does AEC-Q200 certification indicate?

A: AEC-Q200 is an automotive industry standard qualification indicating the component has undergone enhanced reliability testing and screening. KTR03EZPF3R60 and RMCF0603FT3R60 carry this certification, making them suitable for automotive applications or environments requiring higher reliability assurance.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging format, maintaining compatibility with automated assembly equipment and standard component handling processes.

Q: How does temperature coefficient affect component selection?

A: Temperature coefficient (±200ppm/°C or ±300ppm/°C) describes resistance change per degree Celsius. Lower values indicate better thermal stability. Substitute parts with ±200ppm/°C provide improved performance across temperature extremes, particularly beneficial in applications experiencing wide temperature variations between -55°C and 155°C.

Q: Are all parts RoHS3 compliant?

A: Yes. RC1608J3R6CS and all substitute parts (KTR03EZPF3R60, RC0603JR-073R6L, RMCF0603FT3R60) are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.