RT0402FRE0718K7L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0718K7L is a 0402 (1005 Metric) thin film chip resistor manufactured by YAGEO with a resistance value of 18.7 kOhms and ±1% tolerance. This surface-mount device is rated for 0.063W (1/16W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, making it suitable for general industrial and commercial applications. Equivalent and substitute parts are identified based on matching resistance value, package format, power rating, and operating temperature specifications while allowing for tolerance and temperature coefficient variations.

Key Parameters

Parameter	Value
Resistance	18.7 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature	-55°C ~ 155°C
Temperature Coefficient	±50ppm/°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RT0402FRE0718K7L is determined by the following critical parameters:

Resistance Value: All substitutes must be 18.7 kOhms
Package Format: All substitutes must be 0402 (1005 Metric)
Power Rating: All substitutes must be rated for 0.063W (1/16W) minimum
Composition: Thin film construction required
Operating Temperature Range: Minimum -55°C to 155°C or equivalent
Tolerance: Substitutes with equal or tighter tolerance (±1%, ±0.5%, or ±0.1%) are acceptable
Temperature Coefficient: Substitutes with ±25ppm/°C or ±50ppm/°C are acceptable
Compliance: ROHS3 compliance and MSL 1 rating required

Four substitute parts meet these criteria across multiple manufacturers: RT0402BRD0718K7L and RT0402DRD0718K7L (YAGEO), CPF0402B18K7E1 (TE Connectivity), ERA-2AEB1872X (Panasonic), and RR0510P-1872-D (Susumu).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Package	Temp Coeff	Operating Temp	RoHS Status
RT0402FRE0718K7L	YAGEO	18.7 kOhms	±1%	0.063W	0402	±50ppm/°C	-55°C ~ 155°C	ROHS3
RT0402BRD0718K7L	YAGEO	18.7 kOhms	±0.1%	0.063W	0402	±25ppm/°C	-55°C ~ 155°C	ROHS3
RT0402DRD0718K7L	YAGEO	18.7 kOhms	±0.5%	0.063W	0402	±25ppm/°C	-55°C ~ 155°C	ROHS3
CPF0402B18K7E1	TE Connectivity	18.7 kOhms	±0.1%	0.063W	0402	±25ppm/°C	-55°C ~ 155°C	ROHS3
ERA-2AEB1872X	Panasonic	18.7 kOhms	±0.1%	0.063W	0402	±25ppm/°C	-55°C ~ 155°C	ROHS3
RR0510P-1872-D	Susumu	18.7 kOhms	±0.5%	0.063W	0402	±25ppm/°C	-55°C ~ 125°C	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Same Tolerance)

RT0402DRD0718K7L and RR0510P-1872-D both maintain the ±0.5% tolerance specification of the original part. RT0402DRD0718K7L is preferred for applications requiring the full -55°C to 155°C operating range. RR0510P-1872-D operates to 125°C maximum and is suitable for applications with lower temperature ceiling requirements.

Upgraded Substitutes (Tighter Tolerance)

RT0402BRD0718K7L, CPF0402B18K7E1, and ERA-2AEB1872X all provide ±0.1% tolerance, representing a tighter tolerance specification than the original ±1%. These parts are suitable for precision applications where improved accuracy is beneficial. RT0402BRD0718K7L and CPF0402B18K7E1 are standard industrial-grade components. ERA-2AEB1872X carries AEC-Q200 automotive qualification and is appropriate for automotive and high-reliability applications.

Compliance and Certification

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. ERA-2AEB1872X additionally qualifies under AEC-Q200 automotive standards for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD0718K7L replace RT0402FRE0718K7L in any application?

A: RT0402BRD0718K7L is a direct functional substitute. It provides tighter tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), making it suitable for all applications where the original part is used. The improved specifications do not create compatibility issues.

Q: What is the difference between RT0402DRD0718K7L and RR0510P-1872-D?

A: Both parts share ±0.5% tolerance matching the original specification. The primary difference is operating temperature range: RT0402DRD0718K7L operates to 155°C while RR0510P-1872-D operates to 125°C maximum. Select based on application temperature requirements.

Q: Is ERA-2AEB1872X suitable for non-automotive applications?

A: Yes. ERA-2AEB1872X meets all electrical and mechanical specifications for the 18.7 kOhm 0402 resistor category. AEC-Q200 qualification indicates enhanced reliability and is not restrictive to automotive use. It is suitable for any application requiring the specified parameters.

Q: Do all substitutes maintain the same physical dimensions?

A: All substitutes use the 0402 (1005 Metric) package format with identical length and width (1.00mm x 0.50mm). Height specifications vary slightly: RT0402FRE0718K7L, RT0402BRD0718K7L, and RT0402DRD0718K7L are 0.35mm maximum; CPF0402B18K7E1, ERA-2AEB1872X, and RR0510P-1872-D are 0.40mm maximum. These variations are within standard PCB assembly tolerances.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.

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