What are the key specifications of the RS-03K49R9FT?

Key specs include a 100mW power rating, ±100ppm/℃ temperature coefficient, 50V maximum overload voltage, and an operating temperature range of -55℃ to +155℃.

What is this resistor used for?

It is widely used in home appliances, computers, communications, and industrial automation equipment for signal regulation and voltage division.

What should engineers review before using this part?

Engineers should ensure the power rating (100mW) is sufficient for the application and that the PCB footprint matches the 0603 (1.6mm x 0.8mm) dimensions.

What are the sourcing risks for this component?

As a standard thick film resistor, it has high availability and low sourcing risk, though supply chain fluctuations can occur.

What is the pinout of RS-03K49R9FT?

Use the RS-03K49R9FT datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about RS-03K49R9FT pinout to locate pins, power rails, and interface signals before layout.

RS-03K49R9FT Datasheet, Specs, Alternatives & ECAD | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

Q: What is the RS-03K49R9FT?

It is a 0603-sized thick film chip resistor manufactured by Fenghua, featuring a resistance of 49.9Ω and a tolerance of ±1%.

AI summary

The RS-03K49R9FT is a reliable 0603 thick film chip resistor from Fenghua, offering 49.9Ω resistance and 1% tolerance for general-purpose SMT applications.

Best for

General purpose signal conditioning
Voltage dividers
Consumer electronics

Avoid if

High-precision applications requiring <0.1% tolerance
High-power circuits exceeding 100mW

Check before use

PCB footprint compatibility
Thermal management in high-density designs

Key specifications

Resistance: 49.9Ω
Tolerance: ±1%
Power Rating: 100mW
Package: 0603

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: 1
ECCN: -
HTSUS: -

Application

Consumer ElectronicsIndustrial AutomationCommunications

Datasheet

1d3c8c2564004d43aaea4fb8a84d7ce7_2304140030_FH--Guangdong-Fenghua-Advanced-Tech-RS-03K49R9FT_C304761.pdf

800 KB

Datasheet AI

CAD Models

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Where to Buy

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Alternative components

Part	Details	Match
0603WAF499JT5EUNI-ROYAL	A pin-compatible alternative from UNI-ROYAL with matching key electrical parameters and package.	Needs validation

Design and risk insights

Questions & answers

It is a 0603-sized thick film chip resistor manufactured by Fenghua, featuring a resistance of 49.9Ω and a tolerance of ±1%.

RC0603FR-0749R9LYageo	A pin-compatible alternative from Yageo with matching key electrical parameters and package.	Needs validation
RT0603BRD0749R9LYageo	An upgrade path with tighter tolerance and TCR, but uses Thin Film instead of Thick Film technology.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the RS-03K49R9FT?+×

What are the key specifications of the RS-03K49R9FT?+×

What is this resistor used for?+×

What should engineers review before using this part?+×

What are the sourcing risks for this component?+×

What is the pinout of RS-03K49R9FT?+×