CRCW0805634RFKEAC Equivalent & Substitute Parts

Part Overview

The CRCW0805634RFKEAC is a 634 Ohm ±1% thick film chip resistor manufactured by Vishay Dale in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation with an operating temperature range of -55°C to 155°C. The part maintains Active product status with 1068 units currently in stock. Substitute parts become necessary when primary inventory is depleted, when procurement lead times are extended, or when design flexibility across qualified manufacturers is required while maintaining identical electrical and mechanical specifications.

Substiute Parts

CRCW0805634RFKEAC

Vishay DaleIn Stock: 1095CRCW0805634RFKEAC Datasheet

Current PartRFQ

MCR10ERTF6340

Rohm SemiconductorIn Stock: 3489MCR10ERTF6340 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CRCW0805634RFKEAC is determined by strict equivalence across the following parameters: resistance value (634 Ohms), tolerance (±1%), power rating (0.125W), package format (0805 / 2012 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts must maintain identical electrical performance characteristics and physical dimensions to ensure direct replacement without circuit redesign or board layout modification. Compliance certifications including RoHS3 and REACH status must be maintained. The MCR10ERTF6340 manufactured by Rohm Semiconductor meets all specified electrical and mechanical parameters and qualifies as a direct substitute despite its Discontinued at DiGi Electronics status.

Parameter Comparison

Engineering Selection Recommendations

The MCR10ERTF6340 is electrically and mechanically equivalent to the CRCW0805634RFKEAC across all critical parameters. Both components satisfy ROHS3 compliance and REACH requirements. The MCR10ERTF6340 exhibits a maximum seated height of 0.026" (0.65mm) compared to 0.024" (0.60mm) for the primary part; this 0.002" (0.05mm) difference remains within typical PCB assembly tolerances and does not preclude direct substitution. The MCR10ERTF6340 is currently available with 3395 units in stock despite its Discontinued at DiGi Electronics status, making it a viable alternative when CRCW0805634RFKEAC inventory is unavailable. Selection between these parts should be based on procurement availability, lead time requirements, and packaging format preference (Tape & Reel versus Cut Tape & Digi-Reel).

Frequently Asked Questions (FAQ)

Q: Can the MCR10ERTF6340 be used as a direct replacement for the CRCW0805634RFKEAC on existing PCBs?

A: Yes. Both components share identical resistance (634 Ohms), tolerance (±1%), power rating (0.125W), package format (0805), and operating temperature range (-55°C to 155°C). The 0.002" height difference is within standard PCB assembly tolerances and does not affect board-level compatibility.

Q: What is the significance of the MCR10ERTF6340 being listed as Discontinued at DiGi Electronics?

A: Discontinuation at a specific distributor does not indicate end-of-life status for the component itself. The MCR10ERTF6340 remains available through alternative distribution channels with current inventory of 3395 units. Verify availability through your procurement channels before design commitment.

Q: Are there compliance differences between the CRCW0805634RFKEAC and MCR10ERTF6340?

A: No. Both components maintain identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings. Regulatory and environmental compliance requirements are satisfied by either part.

Q: What packaging formats are available for these substitute parts?

A: The CRCW0805634RFKEAC is supplied in Tape & Reel (TR) format. The MCR10ERTF6340 is supplied in Cut Tape (CT) & Digi-Reel format. Confirm packaging compatibility with your assembly process requirements before procurement.

Q: How do temperature coefficients affect substitution decisions?

A: Both the CRCW0805634RFKEAC and MCR10ERTF6340 specify ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. Thermal performance is equivalent, and substitution does not require circuit re-analysis for temperature-dependent behavior.