CRCW080591R0FKEB Equivalent & Substitute Parts

Part Overview

The CRCW080591R0FKEB is a 91 Ohm ±1% 0.125W (1/8W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This part is AEC-Q200 automotive qualified and RoHS3 compliant. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Resistance	91 Ohms
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 ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the CRCW080591R0FKEB is determined by strict equivalence across the following parameters: resistance value (91 Ohms), tolerance (±1%), power rating (0.125W minimum), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (RoHS3, REACH Unaffected, EAR99).

Substitute parts are grouped into three categories:

Direct Equivalents maintain all electrical and mechanical specifications identical to the main part, differing only in manufacturer or internal product series designation. These include CRCW080591R0FKEA (Vishay Dale, active status), ERJ-6ENF91R0V (Panasonic), RMCF0805FT91R0 (Stackpole), and CR0805-FX-91R0ELF (Bourns).

Upgrade Parts provide enhanced specifications while maintaining full backward compatibility. CRCW080591R0DKEAP offers improved tolerance (±0.5% vs ±1%). ESR10EZPF91R0 and KTR10EZPF91R0 provide higher power ratings (0.4W and enhanced features) while maintaining the same resistance and tolerance.

Manufacturer Recommended Parts (CRCW080591R0FKEAC, CRCW080591R0FKEBC) are designated as active alternatives by Vishay Dale with identical electrical specifications but minor mechanical variations in seated height.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Product Status	Height Max (mm)
CRCW080591R0FKEB	Vishay Dale	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Discontinued	0.50
CRCW080591R0FKEA	Vishay Dale	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Active	0.50
CRCW080591R0DKEAP	Vishay Dale	91Ω	±0.5%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Active	0.50
CRCW080591R0FKEAC	Vishay Dale	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	No	Active	0.60
CRCW080591R0FKEBC	Vishay Dale	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	No	Active	0.60
ERJ-6ENF91R0V	Panasonic	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Active	0.70
RMCF0805FT91R0	Stackpole	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Active	0.65
ESR10EZPF91R0	Rohm	91Ω	±1%	0.4	0805	±100ppm/°C	-55~155°C	Yes	Active	0.65
KTR10EZPF91R0	Rohm	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	Yes	Active	0.65
CR0805-FX-91R0ELF	Bourns	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	No	Active	0.60
MCR10ERTF91R0	Rohm	91Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	No	Discontinued	0.65

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification with active product status, CRCW080591R0FKEA (Vishay Dale), ERJ-6ENF91R0V (Panasonic), RMCF0805FT91R0 (Stackpole), and KTR10EZPF91R0 (Rohm) are primary selections. All maintain identical electrical specifications to the discontinued CRCW080591R0FKEB.

CRCW080591R0DKEAP provides improved tolerance (±0.5%) for applications requiring tighter resistance control while maintaining AEC-Q200 qualification and active status.

For non-automotive applications or where AEC-Q200 is not required, CRCW080591R0FKEAC, CRCW080591R0FKEBC, and CR0805-FX-91R0ELF are active alternatives with identical electrical performance.

ESR10EZPF91R0 and KTR10EZPF91R0 are suitable for applications requiring enhanced power handling or high-voltage performance while maintaining the 91 Ohm ±1% specification.

MCR10ERTF91R0 is discontinued and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can CRCW080591R0FKEA directly replace CRCW080591R0FKEB?

A: Yes. Both parts share identical electrical specifications (91Ω ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and package (0805), with AEC-Q200 qualification. CRCW080591R0FKEA is the active equivalent with higher inventory availability.

Q: What is the difference between CRCW080591R0FKEA and CRCW080591R0DKEAP?

A: CRCW080591R0DKEAP offers improved tolerance (±0.5% vs ±1%) while maintaining all other specifications. This upgrade is suitable for applications requiring tighter resistance control.

Q: Are CRCW080591R0FKEAC and CRCW080591R0FKEBC suitable for automotive applications?

A: These parts lack AEC-Q200 qualification. They are suitable for non-automotive applications. For automotive designs, use CRCW080591R0FKEA, ERJ-6ENF91R0V, RMCF0805FT91R0, or KTR10EZPF91R0.

Q: Does seated height variation affect PCB assembly?

A: Seated height ranges from 0.50mm to 0.70mm across substitute parts. For standard PCB assembly processes, this variation is within acceptable tolerances. Verify with your assembly partner if height-critical applications exist.

Q: Can ESR10EZPF91R0 replace the main part in all applications?

A: ESR10EZPF91R0 provides higher power rating (0.4W vs 0.125W) and is fully backward compatible. It is suitable for all applications requiring the original part and those requiring enhanced power handling.

Q: Why is MCR10ERTF91R0 listed if it is discontinued?

A: MCR10ERTF91R0 is included for reference in existing designs. For new designs, select from active alternatives listed above.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance profile of the main part.

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