CRCW120618R0FKTA Equivalent & Substitute Parts

Part Overview

The CRCW120618R0FKTA is an 18 Ohm ±1% 0.25W (1/4W) thick film chip resistor in 1206 (3216 Metric) package manufactured by Vishay Dale. This component is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently active in production. Substitute parts are necessary when the primary part experiences supply constraints, when design requirements demand enhanced specifications such as higher power ratings or improved moisture resistance, or when alternative manufacturers' components are preferred for supply chain diversification.

Key Parameters

Parameter	Value
Resistance	18 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (18 Ohms), tolerance (±1%), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Parts are grouped into three categories:

Direct Equivalents maintain identical specifications including power rating (0.25W), AEC-Q200 automotive rating, and physical dimensions. These parts are pin-for-pin compatible with no circuit modifications required.

Upgrade Substitutes increase the power rating to 0.75W (3/4W) while maintaining all other core parameters. These parts provide enhanced thermal performance and pulse withstanding capability, suitable for applications requiring higher power dissipation margins.

Manufacturer Recommended Alternatives meet core electrical specifications but may feature enhanced characteristics such as moisture resistance. These parts are qualified alternatives from different manufacturers with active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	RoHS Status
CRCW120618R0FKTA	Vishay Dale	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Non-compliant
CRCW120618R0FKEA	Vishay Dale	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3 Compliant
CRCW120618R0FKEAHP	Vishay Dale	18 Ω	±1%	0.75	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3 Compliant
ERJ-8ENF18R0V	Panasonic Electronic Components	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	ROHS3 Compliant
RMCF1206FT18R0	Stackpole Electronics Inc	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3 Compliant
AC1206FR-0718RL	YAGEO	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3 Compliant
CR1206-FX-18R0ELF	Bourns Inc.	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	ROHS3 Compliant
RC1206FR-0718RL	YAGEO	18 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): CRCW120618R0FKEA is the preferred direct substitute from Vishay Dale. It maintains identical electrical and mechanical specifications while offering ROHS3 compliance and significantly higher inventory availability (62,927 pcs vs. 774 pcs). RMCF1206FT18R0 from Stackpole Electronics provides an alternative direct equivalent with active product status and ROHS3 compliance.

For Enhanced Performance: CRCW120618R0FKEAHP provides a power rating upgrade to 0.75W while maintaining all other core parameters. This upgrade is suitable for applications requiring improved thermal margin or pulse withstanding capability. The part is ROHS3 compliant and has substantial inventory availability (157,806 pcs).

For Non-Automotive Applications: CR1206-FX-18R0ELF from Bourns Inc. and RC1206FR-0718RL from YAGEO are suitable alternatives when AEC-Q200 automotive qualification is not required. Both parts are ROHS3 compliant and active in production.

Avoid for New Designs: ERJ-8ENF18R0V from Panasonic is marked "Not For New Designs" and should not be selected for new applications despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW120618R0FKEAHP be used as a direct replacement for CRCW120618R0FKTA?

A: CRCW120618R0FKEAHP is electrically and mechanically compatible but features a higher power rating (0.75W vs. 0.25W). It can be used as a direct replacement in the same PCB footprint. The upgrade provides additional thermal performance margin with no circuit modifications required.

Q: What is the difference between CRCW120618R0FKTA and CRCW120618R0FKEA?

A: Both parts are identical in electrical specifications (18 Ohms, ±1%, 0.25W, 1206 package, AEC-Q200). The primary difference is RoHS compliance status: CRCW120618R0FKTA is RoHS non-compliant while CRCW120618R0FKEA is ROHS3 compliant. CRCW120618R0FKEA also has significantly higher inventory availability.

Q: Are CR1206-FX-18R0ELF and RC1206FR-0718RL suitable for automotive applications?

A: CR1206-FX-18R0ELF and RC1206FR-0718RL do not carry AEC-Q200 automotive qualification. They are suitable for general industrial and consumer applications but should not be used in designs requiring automotive-grade components.

Q: What determines whether a part can substitute for CRCW120618R0FKTA?

A: Core substitution criteria are: 18 Ohm resistance value, ±1% tolerance, 1206 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating temperature range. Power rating and automotive qualification may vary depending on application requirements.

Q: Why is ERJ-8ENF18R0V marked "Not For New Designs"?

A: ERJ-8ENF18R0V carries a "Not For New Designs" status from Panasonic, indicating the manufacturer is phasing out this product line. While the part meets all electrical specifications, it should not be selected for new product development to avoid future supply discontinuation.

Q: Can these parts be used interchangeably on the same PCB?

A: All listed substitute parts use the same 1206 (3216 Metric) package and are mechanically compatible with identical footprints. Electrical interchangeability is confirmed for parts with matching resistance, tolerance, and power rating specifications. CRCW120618R0FKEAHP has slightly different physical dimensions (0.122" L vs. 0.126" L and 0.026" H vs. 0.024" H) but remains within standard 1206 package tolerances and is PCB-compatible.

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