CRCW080591K0FKTA Equivalent & Substitute Parts

Part Overview

The CRCW080591K0FKTA is a 91 kOhms ±1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This thick film resistor 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. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and automotive qualification requirements.

Key Parameters

Parameter	Value
Resistance	91 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 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)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents maintain identical electrical specifications and power ratings (0.125W, 1/8W):

CRCW080591K0FKEA (Vishay Dale)
ERJ-6ENF9102V (Panasonic Electronic Components)
RMCF0805FT91K0 (Stackpole Electronics Inc)
AC0805FR-0791KL (YAGEO)
RC0805FR-0791KL (YAGEO)

Upgraded Substitute provides higher power rating while maintaining all other electrical parameters:

RCS080591K0FKEA (Vishay Dale) – 0.5W (1/2W) power rating

All substitutes share the following critical parameters with the main part:

Resistance value: 91 kOhms
Tolerance: ±1%
Package: 0805 (2012 Metric)
Temperature coefficient: ±100ppm/°C
Operating temperature: -55°C to 155°C
Composition: Thick Film
Terminations: 2

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	RoHS Status	Height Max (mm)
CRCW080591K0FKTA	Vishay Dale	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	Non-compliant	0.50
CRCW080591K0FKEA	Vishay Dale	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	ROHS3 Compliant	0.50
RCS080591K0FKEA	Vishay Dale	91 kΩ	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Yes	ROHS3 Compliant	0.50
ERJ-6ENF9102V	Panasonic Electronic Components	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	ROHS3 Compliant	0.70
RMCF0805FT91K0	Stackpole Electronics Inc	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	ROHS3 Compliant	0.65
AC0805FR-0791KL	YAGEO	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	ROHS3 Compliant	0.60
RC0805FR-0791KL	YAGEO	91 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	No	ROHS3 Compliant	0.60

Engineering Selection Recommendations

For direct replacement with improved compliance: CRCW080591K0FKEA is the primary equivalent from Vishay Dale, offering identical electrical and mechanical specifications with ROHS3 compliance upgrade from the original non-compliant CRCW080591K0FKTA.

For cross-manufacturer equivalents: ERJ-6ENF9102V (Panasonic), RMCF0805FT91K0 (Stackpole), and AC0805FR-0791KL (YAGEO) provide direct electrical equivalence with AEC-Q200 automotive qualification and ROHS3 compliance. Height variations (0.65–0.70mm) are within standard PCB assembly tolerances for 0805 packages.

For applications requiring higher power dissipation: RCS080591K0FKEA provides 0.5W (1/2W) power rating while maintaining all other electrical parameters and AEC-Q200 qualification. This upgrade is suitable for circuits with higher current or pulse withstanding requirements.

For non-automotive applications: RC0805FR-0791KL (YAGEO) meets all electrical specifications and ROHS3 compliance but lacks AEC-Q200 certification. This part is suitable only for non-automotive designs.

Frequently Asked Questions (FAQ)

Q: Can CRCW080591K0FKEA be used as a direct replacement for CRCW080591K0FKTA? A: Yes. Both parts share identical resistance (91 kOhms), tolerance (±1%), power rating (0.125W), package (0805), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The primary difference is ROHS3 compliance status.

Q: What is the difference between direct equivalents and the RCS080591K0FKEA upgrade? A: Direct equivalents maintain the 0.125W power rating. RCS080591K0FKEA provides 0.5W power rating with pulse withstanding capability, suitable for higher-stress applications while maintaining identical resistance and tolerance values.

Q: Are all substitute parts AEC-Q200 qualified? A: All substitutes except RC0805FR-0791KL carry AEC-Q200 automotive qualification. RC0805FR-0791KL is suitable for non-automotive applications only.

Q: Do height differences between substitute parts affect PCB assembly? A: Height variations (0.50–0.70mm) are within standard tolerances for 0805 (2012 Metric) package assembly. All listed parts are mechanically compatible with standard 0805 footprints.

Q: Which substitute offers the best inventory availability? A: ERJ-6ENF9102V (Panasonic) has the highest inventory at 52,130 pieces, followed by RC0805FR-0791KL (YAGEO) at 32,857 pieces.

Q: Can I use RC0805FR-0791KL in an automotive application? A: No. RC0805FR-0791KL lacks AEC-Q200 certification and is not qualified for automotive use. Use AEC-Q200 rated alternatives for automotive designs.

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