RMC1/8K4640FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K4640FTP is a 464 Ohm ±1% 0.25W thick film chip resistor manufactured by Kamaya Inc. in 1206 (3216 Metric) surface mount package. This component is classified as Active product status with unlimited moisture sensitivity level (MSL 1) and is currently in stock inventory of 704 pieces.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements mandate specific certifications such as AEC-Q200 automotive qualification, or when alternative manufacturers offer equivalent electrical and mechanical performance within the same package specification.

Substiute Parts

RMC1/8K4640FTP

Kamaya Inc.In Stock: 791RMC1/8K4640FTP Datasheet

Current PartRFQ

ERJ-8ENF4640V

Panasonic Electronic ComponentsIn Stock: 102005ERJ-8ENF4640V Datasheet

DirectRFQ

MCR18ERTF4640

Rohm SemiconductorIn Stock: 3616MCR18ERTF4640 Datasheet

DirectRFQ

RC1206FR-07464RL

YAGEOIn Stock: 95497RC1206FR-07464RL Datasheet

DirectRFQ

RMCF1206FT464R

Stackpole Electronics IncIn Stock: 5261RMCF1206FT464R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/8K4640FTP is determined by strict equivalence across all critical electrical and mechanical parameters. The following criteria establish substitution validity:

Mandatory Equivalence Parameters:

• Resistance value: 464 Ohms
• Tolerance: ±1%
• Power dissipation: 0.25W (1/4W)
• Package designation: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: MSL 1
• Termination count: 2

Allowable Variations: Physical dimensions (length, width, height) within the 1206 package specification are subject to minor manufacturing tolerances. Substitute parts may exhibit dimensional variations within standard 1206 package tolerances without affecting functional equivalence.

Product Status Consideration: Substitute parts with "Not For New Designs" or "Discontinued" status remain electrically and mechanically equivalent but may have restricted availability or future support implications.

Parameter Comparison

Engineering Selection Recommendations

For General Industrial Applications: RC1206FR-07464RL (YAGEO) is the primary substitute. This part maintains Active product status, offers high inventory availability (95,400 pieces), includes moisture-resistant thick film composition, and carries ROHS3 compliance. Electrical and mechanical parameters are fully equivalent to the RMC1/8K4640FTP.

For Automotive Applications Requiring AEC-Q200 Certification: RMCF1206FT464R (Stackpole Electronics Inc) is the appropriate selection. This part carries AEC-Q200 automotive qualification, maintains Active product status, and provides equivalent electrical performance. Alternatively, ERJ-8ENF4640V (Panasonic) offers AEC-Q200 certification but carries "Not For New Designs" status, limiting its suitability for new product development.

For Applications with Specific Packaging Requirements: MCR18ERTF4640 (Rohm Semiconductor) is available in Cut Tape (CT) and Digi-Reel® packaging format, differing from the standard Tape & Reel format of other substitutes. This part is discontinued at DiGi Electronics, indicating limited future availability.

Compliance Considerations: All substitute parts maintain REACH Unaffected status and EAR99 export classification consistent with the primary part. ROHS3 compliance is documented for all substitute parts; primary part compliance status is not specified in available data.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF4640V replace RMC1/8K4640FTP in new product designs?

A: ERJ-8ENF4640V meets all electrical and mechanical equivalence criteria. However, this part carries "Not For New Designs" product status. For new designs, RC1206FR-07464RL or RMCF1206FT464R are preferred alternatives with Active product status.

Q: What is the difference between the substitute parts in terms of physical dimensions?

A: All substitute parts conform to 1206 (3216 Metric) package specification. Minor dimensional variations exist within standard package tolerances: length ranges from 0.120" to 0.126" (3.05mm to 3.20mm), width is 0.061" to 0.063" (1.55mm to 1.60mm), and height ranges from 0.025" to 0.028" (0.65mm to 0.70mm). These variations do not affect functional equivalence or PCB assembly compatibility.

Q: Which substitute part offers the best inventory availability?

A: ERJ-8ENF4640V (Panasonic) provides the highest inventory level at 101,968 pieces. RC1206FR-07464RL (YAGEO) offers the second-highest availability at 95,400 pieces. Both parts are suitable for high-volume procurement requirements.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts carry ROHS3 Compliant certification. The primary part RMC1/8K4640FTP does not specify RoHS compliance status in available documentation.

Q: What packaging formats are available among the substitute parts?

A: Four substitute parts are supplied in Tape & Reel (TR) format: ERJ-8ENF4640V, RC1206FR-07464RL, and RMCF1206FT464R. MCR18ERTF4640 is available in Cut Tape (CT) and Digi-Reel® format. Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Which substitute parts carry automotive certification?

A: RMCF1206FT464R (Stackpole) and ERJ-8ENF4640V (Panasonic) both carry AEC-Q200 automotive qualification. These parts are suitable for automotive applications requiring formal qualification documentation.

Q: Is MCR18ERTF4640 still available for procurement?

A: MCR18ERTF4640 is discontinued at DiGi Electronics with 3,545 pieces currently in stock. This part should not be selected for new designs or long-term production requirements due to discontinued status and limited remaining inventory.