RMC1/10K4993FTP Equivalent & Substitute Parts

Part Overview

The RMC1/10K4993FTP is a 499 kOhms ±1% 0.125W thick film chip resistor manufactured by Kamaya Inc. in 0805 (2012 Metric) package format. This component is classified as Active product status and is supplied in Tape & Reel packaging. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct interchangeability in circuit applications requiring 499 kOhms resistance with 1% tolerance and 1/8W power rating.

Key Parameters

Parameter	Value
Resistance	499 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution of the RMC1/10K4993FTP is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value of 499 kOhms, tolerance of ±1%, and power rating of 0.125W (1/8W) must be identical across all substitute parts.

Package Compatibility: All substitute parts must use the 0805 (2012 Metric) package format to ensure mechanical fit and PCB land pattern compatibility.

Thermal Characteristics: Temperature coefficient of ±100ppm/°C and operating temperature range of -55°C ~ 155°C must be maintained.

Composition: Thick film construction is required for all substitutes.

Moisture Sensitivity: MSL rating of 1 (Unlimited) applies uniformly across all qualified substitutes.

The following parts meet these substitution criteria and are electrically and mechanically equivalent to the RMC1/10K4993FTP.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Composition	Temp Coeff	Operating Temp	Size (L x W)	Height Max	MSL
RMC1/10K4993FTP	Kamaya Inc.	499 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	2.00mm x 1.25mm	0.65mm	1
ERJ-6ENF4993V	Panasonic Electronic Components	499 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	2.00mm x 1.25mm	0.70mm	1
KTR10EZPF4993	Rohm Semiconductor	499 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	2.00mm x 1.25mm	0.65mm	1
RC0805FR-07499KL	YAGEO	499 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	2.00mm x 1.25mm	0.60mm	1
RMCF0805FT499K	Stackpole Electronics Inc	499 kOhms	±1%	0.125W	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	2.00mm x 1.25mm	0.65mm	1

Engineering Selection Recommendations

All four substitute parts listed above are functionally equivalent to the RMC1/10K4993FTP and meet identical electrical and mechanical specifications. Selection among these substitutes may be based on the following factors:

Automotive Applications: ERJ-6ENF4993V (Panasonic), KTR10EZPF4993 (Rohm Semiconductor), and RMCF0805FT499K (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification ratings. These parts are suitable for automotive-grade applications requiring enhanced reliability standards.

High Voltage Applications: KTR10EZPF4993 includes high voltage capability in addition to AEC-Q200 compliance, providing additional margin for high-voltage circuit designs.

Moisture Resistance: RC0805FR-07499KL (YAGEO) features moisture-resistant construction, offering enhanced protection in humid or moisture-prone environments.

Packaging Format: ERJ-6ENF4993V, KTR10EZPF4993, and RMCF0805FT499K are supplied in Tape & Reel format matching the original part. RC0805FR-07499KL is supplied in Cut Tape and Digi-Reel format, which may affect procurement and assembly processes.

RoHS Compliance: ERJ-6ENF4993V, KTR10EZPF4993, RC0805FR-07499KL, and RMCF0805FT499K are all ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6ENF4993V be used as a direct replacement for RMC1/10K4993FTP?

A: Yes. ERJ-6ENF4993V meets all electrical specifications (499 kOhms ±1%, 0.125W) and mechanical requirements (0805 package, 2.00mm x 1.25mm dimensions). The maximum seated height of 0.70mm is within acceptable tolerance for 0805 package applications. AEC-Q200 certification provides additional reliability assurance.

Q: What is the difference between KTR10EZPF4993 and other substitutes?

A: KTR10EZPF4993 includes high voltage capability in addition to standard specifications. This feature provides additional design margin for circuits operating at elevated voltages. All other electrical and mechanical parameters remain identical to the RMC1/10K4993FTP.

Q: Is RC0805FR-07499KL suitable for standard PCB assembly?

A: Yes. RC0805FR-07499KL is mechanically compatible with standard 0805 package footprints. The moisture-resistant feature provides enhanced environmental protection. The primary difference is packaging format (Cut Tape and Digi-Reel versus Tape & Reel), which may affect procurement and automated assembly processes.

Q: Do all substitute parts have the same temperature coefficient?

A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C ~ 155°C operating temperature range, matching the RMC1/10K4993FTP specification.

Q: Which substitute part should be selected for automotive applications?

A: ERJ-6ENF4993V, KTR10EZPF4993, and RMCF0805FT499K all carry AEC-Q200 automotive qualification. Selection among these three depends on additional requirements such as high voltage capability (KTR10EZPF4993) or packaging preference.

Q: Are all substitute parts REACH compliant?

A: Yes. All substitute parts listed carry REACH Unaffected status, matching the RMC1/10K4993FTP compliance profile.

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