RMC1/8K47R0FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K47R0FTP is a 47 Ohm, ±1% tolerance, 0.25W (1/4W) thick film chip resistor manufactured by Kamaya Inc. in the 1206 (3216 Metric) package. This component is classified as Active product status and is suitable for general-purpose applications requiring precision resistive elements with standard operating temperature range of -55°C to 155°C.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when design requirements mandate specific certifications (such as AEC-Q200 automotive qualification), or when alternative sourcing improves supply chain resilience and cost optimization.

Key Parameters

Parameter	Value	Significance for Substitution
Resistance	47 Ohms	Critical - must match exactly
Tolerance	±1%	Critical - determines circuit accuracy
Power Rating	0.25W (1/4W)	Critical - thermal dissipation requirement
Package / Case	1206 (3216 Metric)	Critical - PCB footprint compatibility
Composition	Thick Film	Critical - electrical characteristics and temperature coefficient
Temperature Coefficient	±100ppm/°C	Important - resistance stability over temperature
Operating Temperature Range	-55°C ~ 155°C	Important - environmental operating limits
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Important - storage and handling requirements
Number of Terminations	2	Critical - circuit connection points

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/8K47R0FTP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 47 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W / 1/4W (exact match required)
Package: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match required)
Number of terminations: 2 (exact match required)
Moisture sensitivity level: 1 (Unlimited) (exact match required)

Acceptable Variations:

Physical dimensions may vary within supplier specifications (length and height tolerances)
Product status may differ (Active vs. Not For New Designs)
Certifications and features may be additional (e.g., AEC-Q200, High Voltage, Moisture Resistant)
Inventory availability and packaging format (Tape & Reel) remain consistent

All four substitute parts listed meet these mandatory criteria and are therefore direct functional equivalents.

Parameter Comparison

Parameter	RMC1/8K47R0FTP	ERJ-8ENF47R0V	KTR18EZPF47R0	RC1206FR-0747RL	RMCF1206FT47R0
Manufacturer	Kamaya Inc.	Panasonic Electronic Components	Rohm Semiconductor	YAGEO	Stackpole Electronics Inc
Resistance	47 Ohms	47 Ohms	47 Ohms	47 Ohms	47 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.25W (1/4W)	0.25W (1/4W)	0.25W (1/4W)	0.25W (1/4W)	0.25W (1/4W)
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Number of Terminations	2	2	2	2	2
Product Status	Active	Not For New Designs	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Certifications	None specified	AEC-Q200	AEC-Q200, High Voltage	Moisture Resistant	AEC-Q200
Inventory (Pcs)	935	49,347	2,527	5,544	230,060

Engineering Selection Recommendations

Primary Selection (Preferred): RMCF1206FT47R0 (Stackpole Electronics Inc) is the recommended substitute. This part maintains Active product status, carries AEC-Q200 automotive qualification, and offers the highest inventory availability (230,060 units). It is suitable for both general-purpose and automotive-grade applications.

Secondary Selection (High Availability): ERJ-8ENF47R0V (Panasonic Electronic Components) provides extensive inventory (49,347 units) and AEC-Q200 certification. However, this part is classified as Not For New Designs, making it suitable only for legacy system maintenance or replacement applications where design changes are not permitted.

Tertiary Selection (Specialized Applications): KTR18EZPF47R0 (Rohm Semiconductor) combines Active product status with both AEC-Q200 and High Voltage certifications. This part is appropriate for applications requiring enhanced voltage performance characteristics beyond standard specifications.

Quaternary Selection (Environmental Resilience): RC1206FR-0747RL (YAGEO) features Moisture Resistant construction and Active product status. This part is suitable for applications in high-humidity environments or where extended moisture protection is required.

All four substitute parts are electrically and mechanically equivalent to the RMC1/8K47R0FTP and may be selected based on availability, certification requirements, and application-specific environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF47R0V be used as a direct replacement for RMC1/8K47R0FTP?

A: Yes, ERJ-8ENF47R0V is electrically and mechanically equivalent. However, it is classified as Not For New Designs. Use this part only for maintenance, repair, or replacement of existing systems where design modifications are not feasible.

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

A: ERJ-8ENF47R0V, KTR18EZPF47R0, and RMCF1206FT47R0 carry AEC-Q200 automotive qualification. KTR18EZPF47R0 additionally includes High Voltage certification. RC1206FR-0747RL features Moisture Resistant construction. The RMC1/8K47R0FTP has no specified certifications. Select based on application requirements.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within supplier tolerances. RMC1/8K47R0FTP and RC1206FR-0747RL have identical length (0.122"), while ERJ-8ENF47R0V, KTR18EZPF47R0, and RMCF1206FT47R0 measure 0.126" in length. All parts are 0.063" in width. Height differences range from 0.025" to 0.028". These variations are within standard 1206 package specifications and do not affect PCB footprint compatibility.

Q: Which substitute part has the best inventory availability?

A: RMCF1206FT47R0 offers the highest inventory with 230,060 units in stock, followed by ERJ-8ENF47R0V with 49,347 units. This makes RMCF1206FT47R0 the optimal choice for high-volume production requirements.

Q: Can these parts be used interchangeably in automotive applications?

A: RMCF1206FT47R0, ERJ-8ENF47R0V, and KTR18EZPF47R0 carry AEC-Q200 certification and are suitable for automotive applications. RC1206FR-0747RL and RMC1/8K47R0FTP do not have automotive certification. Verify application requirements before selection.

Q: What is the significance of the ±100ppm/°C temperature coefficient?

A: This parameter defines resistance stability across the operating temperature range of -55°C to 155°C. All listed parts maintain identical temperature coefficient, ensuring equivalent performance in temperature-sensitive circuits.

Q: Are all substitute parts RoHS3 compliant?

A: ERJ-8ENF47R0V, KTR18EZPF47R0, RC1206FR-0747RL, and RMCF1206FT47R0 are all ROHS3 compliant. RMC1/8K47R0FTP does not specify RoHS status. Verify compliance requirements for your application.

Q: What does MSL 1 (Unlimited) mean for these components?

A: MSL 1 (Unlimited) indicates that these components have no moisture sensitivity limitations. They can be stored and handled without special moisture control measures, simplifying logistics and inventory management.

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