RMC1/8K4871FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K4871FTP is a 4.87 kOhms ±1% 0.25W thick film chip resistor manufactured by Kamaya Inc. in 1206 (3216 Metric) surface mount package format. This component is classified as Active product status and is supplied in Tape & Reel packaging with 850 pieces currently in stock.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design requirements specify components with enhanced certifications such as automotive AEC-Q200 qualification or moisture-resistant construction.

Substiute Parts

RMC1/8K4871FTP

Kamaya Inc.In Stock: 872RMC1/8K4871FTP Datasheet

Current PartRFQ

ERJ-8ENF4871V

Panasonic Electronic ComponentsIn Stock: 65168ERJ-8ENF4871V Datasheet

DirectRFQ

KTR18EZPF4871

Rohm SemiconductorIn Stock: 10757KTR18EZPF4871 Datasheet

DirectRFQ

RC1206FR-074K87L

YAGEOIn Stock: 28231RC1206FR-074K87L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RMC1/8K4871FTP is determined by strict compliance with the following parameters:

Critical Parameters (Must Match Exactly):

• Resistance value: 4.87 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• MSL rating: 1 (Unlimited)

Acceptable Variations:

• Physical dimensions may vary within standard 1206 package specifications (length 0.122" to 0.126", width 0.063", height 0.025" to 0.028")
• Manufacturer series designation differs by supplier
• Product status may differ (Active vs. Not For New Designs)
• Additional certifications (AEC-Q200, moisture resistance) are permissible enhancements

All three substitute parts meet these criteria and are electrically and mechanically interchangeable with the RMC1/8K4871FTP.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RMC1/8K4871FTP): Select the original Kamaya part when supply is available and no additional certifications are required. Active product status ensures continued manufacturer support and availability.

Automotive Applications (ERJ-8ENF4871V or KTR18EZPF4871): For designs requiring AEC-Q200 automotive qualification, select either the Panasonic ERJ-8ENF4871V or Rohm KTR18EZPF4871. The Rohm component includes high voltage capability. Note that Panasonic's ERJ-8ENF4871V carries "Not For New Designs" status; use only for legacy design maintenance or when AEC-Q200 qualification is mandatory and Rohm supply is unavailable.

General Industrial Applications (RC1206FR-074K87L): The YAGEO RC1206FR-074K87L offers moisture-resistant construction and Active product status, suitable for general industrial applications where enhanced environmental protection is beneficial.

Supply Chain Optimization: Current inventory levels indicate YAGEO (28,130 pcs) and Panasonic (65,058 pcs) maintain significantly higher stock than Kamaya (850 pcs). Select substitute parts based on application requirements and supply chain strategy.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF4871V be used as a direct replacement for RMC1/8K4871FTP?

A: Yes. Both components share identical electrical specifications (4.87 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C operating range) and package format (1206). The Panasonic part includes AEC-Q200 automotive certification as an additional feature. Physical dimensions vary slightly within standard 1206 tolerances and do not affect PCB compatibility.

Q: What does "Not For New Designs" status mean for ERJ-8ENF4871V?

A: This designation indicates Panasonic has discontinued active development and marketing of this product line. The component remains available and functional for existing applications, but Panasonic recommends new designs use alternative current-generation products. For new automotive designs requiring AEC-Q200 qualification, select KTR18EZPF4871 (Rohm) instead.

Q: Are there dimensional differences between these substitute parts?

A: Minor variations exist within 1206 package specifications. Length ranges from 0.122" to 0.126", width is 0.063" for all parts, and height ranges from 0.025" to 0.028". These variations fall within standard 1206 tolerances and do not affect PCB footprint compatibility or reflow soldering processes.

Q: Which substitute part is best for moisture-sensitive environments?

A: All four parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. The YAGEO RC1206FR-074K87L explicitly includes moisture-resistant construction as a design feature, making it optimal for applications in high-humidity or corrosive environments.

Q: Do all substitute parts meet RoHS compliance?

A: The three substitute parts (Panasonic, Rohm, YAGEO) are ROHS3 Compliant. RoHS status for the original Kamaya RMC1/8K4871FTP is not specified in available documentation.

Q: Can KTR18EZPF4871 be used in high-voltage applications?

A: The Rohm KTR18EZPF4871 includes high-voltage capability as a design feature. However, the specific voltage rating is not provided in the component specifications. Consult Rohm technical documentation for maximum voltage ratings before application in high-voltage circuits.

Q: What is the difference between Thick Film composition and other resistor types?

A: All four parts use Thick Film technology, which is standard for 1206 chip resistors. This composition provides the specified tolerance (±1%), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). Substitution with different composition types is not permitted.