Equivalent & Substitute Parts for RC1608F4321CS

Part Overview

The RC1608F4321CS is a 4.32 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is designed for moisture-resistant applications with an operating temperature range of -55°C to 155°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are maintained across alternative manufacturers.

Substiute Parts

RC1608F4321CS

Samsung Electro-MechanicsIn Stock: 960RC1608F4321CS Datasheet

Current PartRFQ

RC0603FR-074K32L

YAGEOIn Stock: 165132RC0603FR-074K32L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F4321CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Resistance value of 4.32 kOhms with ±1% tolerance, power rating of 0.1W, and temperature coefficient of ±100ppm/°C must be maintained.

Mechanical Compatibility: Package designation must be 0603 (1608 Metric) with identical physical dimensions of 0.063" L × 0.031" W (1.60mm × 0.80mm) and maximum seated height of 0.022" (0.55mm).

Environmental & Compliance Requirements: Operating temperature range of -55°C to 155°C, thick film composition with moisture resistance, RoHS3 compliance, and MSL 1 rating must be preserved.

Termination Configuration: Two-terminal configuration required for direct pin-to-pin compatibility.

The RC0603FR-074K32L from YAGEO meets all substitution criteria and is classified as an equivalent substitute part.

Parameter Comparison

Engineering Selection Recommendations

Both the RC1608F4321CS and RC0603FR-074K32L are Active status components with full RoHS3 compliance and REACH unaffected designation. Selection between these parts is based on availability, supply chain considerations, and inventory requirements rather than technical performance differences.

The RC1608F4321CS (Samsung Electro-Mechanics) is suitable for applications where Samsung component qualification is required or preferred. The RC0603FR-074K32L (YAGEO) provides equivalent functionality with significantly higher inventory availability (165,028 pieces versus 856 pieces), making it the preferred choice for high-volume production or rapid procurement scenarios.

Both parts satisfy identical electrical, mechanical, and environmental specifications. PCB layout, thermal management, and circuit performance will be equivalent when either part is selected. No design modifications or re-qualification are required when substituting between these components.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-074K32L be used as a direct replacement for RC1608F4321CS?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance values (4.32 kOhms ±1%), power ratings (0.1W), package dimensions (0603/1608 Metric), and environmental specifications. Direct pin-to-pin substitution is supported without circuit modifications.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both components have identical dimensions of 0.063" L × 0.031" W (1.60mm × 0.80mm) with maximum seated height of 0.022" (0.55mm). PCB footprints and assembly processes remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RC1608F4321CS and RC0603FR-074K32L are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Environmental and regulatory requirements are satisfied by either component.

Q: What is the temperature coefficient difference between these parts?

A: Both parts have identical temperature coefficients of ±100ppm/°C and operate across the same temperature range of -55°C to 155°C. Thermal performance characteristics are equivalent.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain and availability factors. Both parts are Active status with equivalent specifications. The RC0603FR-074K32L offers higher inventory availability, while the RC1608F4321CS may be preferred if Samsung component qualification is a design requirement.

Q: Are there any packaging differences between these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging format. Handling, storage, and assembly processes are identical.