RC1608F4643CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F4643CS is a 464 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 classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are required due to inventory constraints, supply chain considerations, or design flexibility requirements.

Substiute Parts

RC1608F4643CS

Samsung Electro-MechanicsIn Stock: 979RC1608F4643CS Datasheet

Current PartRFQ

CR0603-FX-4643ELF

Bourns Inc.In Stock: 20102CR0603-FX-4643ELF Datasheet

DirectRFQ

RC0603FR-07464KL

YAGEOIn Stock: 147913RC0603FR-07464KL Datasheet

DirectRFQ

CRCW0603464KFKEA

Vishay DaleIn Stock: 57912CRCW0603464KFKEA Datasheet

SimilarRFQ

ERJ-3EKF4643V

Panasonic Electronic ComponentsIn Stock: 89833ERJ-3EKF4643V Datasheet

SimilarRFQ

RMCF0603FT464K

Stackpole Electronics IncIn Stock: 57773RMCF0603FT464K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Electrical Equivalence: Resistance value (464 kOhms), tolerance (±1%), and power rating (0.1W) must be identical.

Mechanical Compatibility: Package designation (0603 / 1608 Metric), physical dimensions (length, width, height), and termination count (2) must match or fall within acceptable PCB assembly tolerances.

Environmental Compliance: Operating temperature range (-55°C ~ 155°C), temperature coefficient (±100ppm/°C), RoHS status (ROHS3), and moisture sensitivity level (MSL 1) must be maintained.

Composition: Thick film construction is required for thermal stability and performance consistency.

All substitute parts listed meet these criteria. Parts designated as "Direct Manufacturer Part Number" provide identical specifications. Parts designated as "Similar Manufacturer Part Number" include automotive-grade AEC-Q200 certification, which represents an enhanced qualification level while maintaining all core electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

CR0603-FX-4643ELF (Bourns Inc.) and RC0603FR-07464KL (YAGEO) are direct functional equivalents to RC1608F4643CS. Both maintain identical electrical parameters, mechanical dimensions, and environmental compliance. Selection between these options is based on inventory availability and supply chain logistics.

Enhanced-Grade Substitutes (Automotive AEC-Q200 Qualified):

CRCW0603464KFKEA (Vishay Dale), ERJ-3EKF4643V (Panasonic Electronic Components), and RMCF0603FT464K (Stackpole Electronics Inc) incorporate automotive-grade AEC-Q200 qualification. These parts meet all electrical and mechanical requirements of the primary part while providing additional qualification for automotive applications. AEC-Q200 certification indicates enhanced reliability testing and process controls. These substitutes are suitable for applications requiring automotive-grade components or where enhanced reliability margins are specified.

All listed substitutes maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature ranges. Selection should prioritize inventory availability and lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW0603464KFKEA replace RC1608F4643CS in a standard industrial application?

A: Yes. CRCW0603464KFKEA meets all electrical specifications (464 kΩ, ±1%, 0.1W) and mechanical requirements (0603 package). The AEC-Q200 automotive qualification represents an enhanced qualification level and does not restrict use in non-automotive applications. The part is fully compatible.

Q: What is the difference between "Direct Manufacturer Part Number" and "Similar Manufacturer Part Number" designations?

A: Direct Manufacturer Part Numbers (CR0603-FX-4643ELF, RC0603FR-07464KL) provide identical specifications to the primary part without additional certifications. Similar Manufacturer Part Numbers (CRCW0603464KFKEA, ERJ-3EKF4643V, RMCF0603FT464K) include automotive AEC-Q200 qualification, which indicates enhanced reliability testing and process controls while maintaining all core electrical and mechanical parameters.

Q: Are there dimensional differences between substitute parts?

A: Dimensional variations exist within acceptable tolerances. RC1608F4643CS, CR0603-FX-4643ELF, and ERJ-3EKF4643V share identical dimensions (0.063" L x 0.031" W, 0.022" height). CRCW0603464KFKEA and RMCF0603FT464K have slightly reduced dimensions (0.061" L, 0.020" or 0.022" height) but remain within 0603 package classification and PCB assembly compatibility.

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

A: Yes. All listed substitutes conform to 0603 (1608 Metric) package specifications and are compatible with standard 0603 PCB footprints. Dimensional variations are within manufacturing tolerances and assembly process capabilities.

Q: What is MSL 1 and why is it important?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. All listed parts maintain MSL 1 rating, meaning they can be stored and handled under standard conditions without special moisture control procedures.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, consistent with the primary part RC1608F4643CS.