RC1608F3740CS 374 Ohm 1% 1/10W 0603 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC1608F3740CS is a 374 Ohm thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0603 (1608 Metric) package format. This surface mount device delivers 0.1W power dissipation with ±1% tolerance and moisture resistant construction. The part maintains Active product status with 1003 units currently in stock. Equivalent and substitute parts are identified when identical electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling seamless integration into existing designs or procurement alternatives when primary inventory becomes unavailable.

Substiute Parts

RC1608F3740CS

Samsung Electro-MechanicsIn Stock: 1025RC1608F3740CS Datasheet

Current PartRFQ

CR0603-FX-3740ELF

Bourns Inc.In Stock: 37149CR0603-FX-3740ELF Datasheet

DirectRFQ

RC0603FR-07374RL

YAGEOIn Stock: 454208RC0603FR-07374RL Datasheet

DirectRFQ

AC0603FR-07374RL

YAGEOIn Stock: 14514AC0603FR-07374RL Datasheet

SimilarRFQ

CRCW0603374RFKEA

Vishay DaleIn Stock: 29009CRCW0603374RFKEA Datasheet

SimilarRFQ

RMCF0603FT374R

Stackpole Electronics IncIn Stock: 6770RMCF0603FT374R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F3740CS is determined by strict alignment of the following critical parameters:

Electrical Specifications: Resistance value (374 Ohms), tolerance (±1%), and power rating (0.1W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Compatibility: Package designation (0603 / 1608 Metric) and number of terminations (2) ensure physical fit and solderability on printed circuit boards. Seated height and overall dimensions must accommodate existing PCB layouts.

Compliance & Environmental: RoHS3 compliance, MSL rating (1), REACH status, and ECCN classification must match or exceed the original specification. Composition (Thick Film) and moisture resistance features define environmental durability.

Substitution Categories:

Direct substitutes possess identical specifications across all parameters listed above. Similar substitutes meet all electrical and mechanical requirements but include additional certifications (AEC-Q200 automotive qualification) or minor dimensional variations within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

RC0603FR-07374RL (YAGEO) and CR0603-FX-3740ELF (Bourns) are direct functional equivalents to the RC1608F3740CS. Both maintain identical electrical parameters, thermal characteristics, and moisture resistance features. RC0603FR-07374RL offers the highest inventory availability at 454,175 units. CR0603-FX-3740ELF is supplied in Cut Tape and Digi-Reel packaging, providing alternative handling options compared to the standard Tape & Reel format of the primary part.

Similar Substitutes (Additional Certifications):

AC0603FR-07374RL (YAGEO), CRCW0603374RFKEA (Vishay Dale), and RMCF0603FT374R (Stackpole) meet all core electrical and mechanical specifications while incorporating AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability. AC0603FR-07374RL retains moisture resistant construction. CRCW0603374RFKEA and RMCF0603FT374R do not specify moisture resistance but maintain all other critical parameters. Dimensional variations in CRCW0603374RFKEA (1.55mm x 0.85mm vs. 1.60mm x 0.80mm) and RMCF0603FT374R (1.55mm x 0.80mm) remain within standard 0603 package tolerances.

Compliance Alignment:

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, REACH unaffected status, and EAR99 ECCN classification, ensuring regulatory compatibility with the original RC1608F3740CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07374RL replace RC1608F3740CS in any application?

A: RC0603FR-07374RL is a direct electrical and mechanical equivalent. Both parts share identical resistance (374 Ohms), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). Substitution is valid for all applications where the original part is specified.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes (RC0603FR-07374RL, CR0603-FX-3740ELF) replicate all specifications of the RC1608F3740CS without additional features. Similar substitutes (AC0603FR-07374RL, CRCW0603374RFKEA, RMCF0603FT374R) include AEC-Q200 automotive certification, making them suitable for automotive applications but not required for general industrial use.

Q: Does moisture resistance affect substitution eligibility?

A: Moisture resistance is a specified feature of the RC1608F3740CS. CR0603-FX-3740ELF and RC0603FR-07374RL maintain this feature. AC0603FR-07374RL also includes moisture resistance. CRCW0603374RFKEA and RMCF0603FT374R do not specify moisture resistance; substitution should be evaluated based on application environmental requirements.

Q: Are there packaging format differences among substitutes?

A: RC1608F3740CS and most substitutes are supplied in Tape & Reel (TR) format. CR0603-FX-3740ELF is available in Cut Tape (CT) and Digi-Reel packaging, offering alternative handling and dispensing options. All parts maintain identical 0603 package dimensions for PCB compatibility.

Q: Can AEC-Q200 rated parts replace non-automotive specified parts?

A: AEC-Q200 certification indicates automotive-grade reliability and is a superset of standard industrial specifications. AC0603FR-07374RL, CRCW0603374RFKEA, and RMCF0603FT374R can replace the RC1608F3740CS in any application, including non-automotive designs, as they meet or exceed all electrical and environmental requirements.

Q: What inventory considerations apply to substitution?

A: RC0603FR-07374RL (YAGEO) provides the highest stock availability at 454,175 units, followed by CRCW0603374RFKEA (Vishay Dale) at 28,910 units. CR0603-FX-3740ELF (Bourns) stocks 37,104 units. The original RC1608F3740CS maintains 1,003 units. Inventory levels should be evaluated against procurement lead times and project schedules.

Q: Are dimensional variations in CRCW0603374RFKEA and RMCF0603FT374R acceptable?

A: CRCW0603374RFKEA measures 1.55mm x 0.85mm with 0.50mm seated height. RMCF0603FT374R measures 1.55mm x 0.80mm with 0.55mm seated height. The RC1608F3740CS measures 1.60mm x 0.80mm with 0.55mm seated height. These variations fall within standard 0603 package tolerances and do not affect PCB layout compatibility or soldering processes.