RC1608F1783CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F1783CS is a 178 kOhms ±1% 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 with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements with moisture resistance in compact surface-mount form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct circuit board compatibility.

Substiute Parts

RC1608F1783CS

Samsung Electro-MechanicsIn Stock: 854RC1608F1783CS Datasheet

Current PartRFQ

CR0603-FX-1783ELF

Bourns Inc.In Stock: 30786CR0603-FX-1783ELF Datasheet

DirectRFQ

RC0603FR-07178KL

YAGEOIn Stock: 4036RC0603FR-07178KL Datasheet

DirectRFQ

CRCW0603178KFKEA

Vishay DaleIn Stock: 59079CRCW0603178KFKEA Datasheet

SimilarRFQ

ERJ-3EKF1783V

Panasonic Electronic ComponentsIn Stock: 109076ERJ-3EKF1783V Datasheet

SimilarRFQ

RMCF0603FT178K

Stackpole Electronics IncIn Stock: 368214RMCF0603FT178K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F1783CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (178 kOhms), tolerance (±1%), and power rating (0.1W) must match exactly. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package designation (0603 / 1608 Metric) and number of terminations (2) ensure physical and electrical compatibility with printed circuit board layouts and assembly processes.

Environmental & Compliance Parameters: RoHS3 compliance, MSL 1 rating, and REACH unaffected status maintain regulatory and reliability standards across all substitute options.

All identified substitute parts meet these criteria without exception. Dimensional variations within supplier device package specifications do not affect functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Moisture Resistant Feature):

CR0603-FX-1783ELF (Bourns Inc.) and RC0603FR-07178KL (YAGEO) are direct functional equivalents to the RC1608F1783CS. Both maintain the moisture-resistant thick film composition and identical electrical specifications. These parts are suitable for applications where the original moisture-resistant feature is a design requirement.

Automotive-Qualified Alternatives (AEC-Q200 Rated):

CRCW0603178KFKEA (Vishay Dale), ERJ-3EKF1783V (Panasonic Electronic Components), and RMCF0603FT178K (Stackpole Electronics Inc.) are qualified to AEC-Q200 automotive standards. These parts meet all electrical and mechanical requirements of the RC1608F1783CS while providing additional automotive-grade reliability certification. Selection of these alternatives is appropriate for applications requiring automotive qualification or enhanced reliability assurance.

All substitute parts maintain Active product status and full RoHS3 compliance. Inventory availability varies by manufacturer and distributor.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-1783ELF replace RC1608F1783CS in any application?

A: CR0603-FX-1783ELF is a direct equivalent. Both parts share identical electrical specifications (178 kOhms ±1%, 0.1W), package format (0603), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and moisture-resistant thick film composition. Physical substitution is valid for all applications where the RC1608F1783CS is specified.

Q: What is the difference between moisture-resistant and AEC-Q200 qualified parts?

A: The RC1608F1783CS, CR0603-FX-1783ELF, and RC0603FR-07178KL are specified with moisture-resistant features for general industrial applications. CRCW0603178KFKEA, ERJ-3EKF1783V, and RMCF0603FT178K carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and testing standards. Both groups meet identical electrical and mechanical specifications; the distinction is in application qualification level.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package specification. The RC1608F1783CS and ERJ-3EKF1783V measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW0603178KFKEA measures 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" (0.50mm) maximum seated height. RMCF0603FT178K measures 0.061" L x 0.031" W (1.55mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. These variations remain within standard 0603 package tolerances and do not affect circuit board compatibility.

Q: Do all substitute parts have the same moisture sensitivity level?

A: All listed parts, including the main part RC1608F1783CS and all substitutes, carry MSL 1 (Unlimited) rating. This indicates no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Which substitute part has the highest inventory availability?

A: RMCF0603FT178K (Stackpole Electronics Inc.) shows 368,195 pieces in stock, representing the highest available inventory among all listed substitutes. ERJ-3EKF1783V (Panasonic) follows with 109,055 pieces, and CRCW0603178KFKEA (Vishay Dale) with 59,050 pieces.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed—CR0603-FX-1783ELF, RC0603FR-07178KL, CRCW0603178KFKEA, ERJ-3EKF1783V, and RMCF0603FT178K—carry ROHS3 compliance certification identical to the main part RC1608F1783CS.