What are the key applications for this resistor?

It is primarily used in automotive power management, industrial control systems, and general current sensing circuits where high reliability is required.

What should engineers review before using this part?

Review the derating curve (derating starts at 70°C) and ensure the PCB solder pad design matches the datasheet recommendations for optimal thermal performance.

What are the key specifications?

1W power rating, 5mΩ resistance, ±1% tolerance, and ±50ppm/°C temperature coefficient.

What is the sourcing risk?

The part is currently active and widely available through major distributors, with moderate supply risk.

What is the pinout of RLM12FTCMR005?

Use the RLM12FTCMR005 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about RLM12FTCMR005 pinout to locate pins, power rails, and interface signals before layout.

RLM12FTCMR005 Datasheet, Specs, Alternatives & ECAD | TAI-TECH

AI summary

The RLM12FTCMR005 is a 1W, 5mΩ, ±1% current sensing resistor in a 1206 package, AEC-Q200 qualified for automotive and industrial use.

Best for

Automotive current sensing
Power supply monitoring
Industrial motor control

Avoid if

Applications requiring extremely low temperature coefficients below 50ppm/°C

Check before use

Thermal dissipation requirements at high ambient temperatures

Key specifications

Power: 1 W
Resistance: 5 mΩ
Tolerance: ±1%
Temp Coeff: ±50 ppm/°C

Compliance & Environment

RoHS: Compliant
REACH: nan
MSL: nan
ECCN: nan
HTSUS: nan

Application

AutomotivePower ManagementIndustrial

Datasheet

c4ce9d52f5ab8312f77f8aa9bc219733_2304140030_TA-I-Tech-RLM12FTCMR005_C316225.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for RLM12FTCMR005: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

Part	Details	Match
HoLLR1206-1W-5mR-1%Milliohm	Excellent alternative with identical package, resistance, power, tolerance, and TCR.	Needs validation

Design and risk insights

Questions & answers

It is a surface-mount current sensing resistor from TAI-TECH, featuring a metal alloy resistive element.

FMF06FTHR005-LHPSA(Prosperity Dielectrics)	Good alternative with same package and power, but a weaker TCR that requires review.	Needs validation
RLP25FEGMR005TAI-TECH	A functional upgrade with 3x power rating, but in a larger 2512 package requiring a new layout.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the RLM12FTCMR005?+×

What are the key applications for this resistor?+×

What should engineers review before using this part?+×

What are the key specifications?+×

What is the sourcing risk?+×

What is the pinout of RLM12FTCMR005?+×