CRCW0805866RFKEAC Equivalent & Substitute Parts

Part Overview

The CRCW0805866RFKEAC is a 866 Ohm ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This component is currently active in production and widely used in general-purpose electronic applications requiring precision resistive elements. Substitute parts become necessary when the primary manufacturer part is unavailable, when alternative packaging formats are required, or when design specifications call for enhanced reliability ratings such as automotive qualification.

Substiute Parts

CRCW0805866RFKEAC

Vishay DaleIn Stock: 809CRCW0805866RFKEAC Datasheet

Current PartRFQ

MCR10ERTF8660

Rohm SemiconductorIn Stock: 2657MCR10ERTF8660 Datasheet

DirectRFQ

KTR10EZPF8660

Rohm SemiconductorIn Stock: 3650KTR10EZPF8660 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CRCW0805866RFKEAC is determined by strict equivalence across the following parameters: resistance value (866 Ohms), tolerance (±1%), power rating (0.125W), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional interchangeability in circuit applications.

The substitute parts are grouped into two categories based on product status and additional qualifications:

Direct Equivalent (Discontinued): MCR10ERTF8660 from Rohm Semiconductor matches all core parameters but is discontinued at DiGi Electronics, making it suitable only when existing inventory is available.

Upgrade Equivalent (Active, Automotive Qualified): KTR10EZPF8660 from Rohm Semiconductor maintains all core parameters while adding Automotive AEC-Q200 qualification and high voltage capability, representing an enhanced alternative for applications requiring higher reliability standards.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CRCW0805866RFKEAC remains the recommended choice for standard applications where the original specification is maintained and component availability is confirmed.

Alternative Selection (Equivalent): MCR10ERTF8660 provides direct electrical and mechanical equivalence and may be selected when inventory of the primary part is exhausted, provided that existing stock of this discontinued part is available through secondary sources.

Enhanced Selection (Upgrade): KTR10EZPF8660 is the recommended substitute for applications requiring automotive-grade reliability. This part maintains all core electrical specifications while adding Automotive AEC-Q200 qualification and high voltage capability. Selection of this upgrade is appropriate for automotive, industrial, or mission-critical applications where enhanced qualification standards are specified or preferred.

All three parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can MCR10ERTF8660 be used as a direct replacement for CRCW0805866RFKEAC?

A: Yes. MCR10ERTF8660 matches all core electrical parameters (866 Ohms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and mechanical specifications (0805 package, thick film composition). The primary difference is product status; MCR10ERTF8660 is discontinued at DiGi Electronics. Substitution is valid only when existing inventory is available.

Q: What is the difference between MCR10ERTF8660 and KTR10EZPF8660?

A: Both parts are electrically and mechanically equivalent to the primary part. KTR10EZPF8660 is currently active in production and includes Automotive AEC-Q200 qualification and high voltage capability. MCR10ERTF8660 is discontinued. For new designs or long-term availability, KTR10EZPF8660 is the preferred choice.

Q: Are there packaging differences between these parts?

A: All three parts use the 0805 (2012 Metric) package. The seated height differs slightly: CRCW0805866RFKEAC is 0.024" (0.60mm) maximum, while both MCR10ERTF8660 and KTR10EZPF8660 are 0.026" (0.65mm) maximum. This 0.002" difference is within typical PCB design tolerances and does not affect functional compatibility.

Q: Which part should be selected for automotive applications?

A: KTR10EZPF8660 is qualified to Automotive AEC-Q200 standard and is the appropriate selection for automotive applications. CRCW0805866RFKEAC and MCR10ERTF8660 do not carry automotive qualification.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1), meeting current environmental and manufacturing standards.