RMC1/8-5R90FTP Equivalent & Substitute Chip Resistor Reference

Part Overview

The Kamaya Inc. RMC1/8-5R90FTP is a thick film chip resistor from the RMC series, specified at 5.9 Ohms ±1% with a rated power of 0.25W (1/4W), housed in a 1206 (3216 Metric) package. The resistor features a temperature coefficient range of -200/+500 ppm/°C and supports operating temperatures from -55°C to +155°C. The product is currently active, supplied in Tape & Reel (TR) packaging.

Alternative models may be necessary for supply chain flexibility, multi-vendor sourcing, or to maintain continuity in manufacturing when inventory status changes.

Key Parameters

Parameter	RMC1/8-5R90FTP
Resistance	5.9 Ohms
Tolerance	±1%
Power (Watts)	0.25W, 1/4W
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature	-55°C ~ 155°C
Temperature Coefficient	-200/+500ppm/°C
Size / Dimension	0.122" L x 0.063" W (3.10mm x 1.60mm)
Height - Seated (Max)	0.025" (0.65mm)
Number of Terminations	2
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitutability within chip resistor products is determined by strict parameter matching. For the RMC1/8-5R90FTP, the following parameters are essential for establishing an equivalent or substitute part: resistance, tolerance, power rating, package/case size, composition, temperature coefficient, operating temperature, physical dimensions, number of terminations, and moisture sensitivity level.

Parameter Comparison

Parameter	RMC1/8-5R90FTP (Kamaya Inc.)	RC1206FR-075R9L (YAGEO)
Resistance	5.9 Ohms	5.9 Ohms
Tolerance	±1%	±1%
Power (Watts)	0.25W, 1/4W	0.25W, 1/4W
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C
Temperature Coefficient	-200/+500ppm/°C	±200ppm/°C
Size / Dimension	0.122" L x 0.063" W (3.10mm x 1.60mm)	0.122" L x 0.063" W (3.10mm x 1.60mm)
Height - Seated (Max)	0.025" (0.65mm)	0.026" (0.65mm)
Number of Terminations	2	2
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8533.21.0030	8533.21.0030

Engineering Selection Recommendations

Both RMC1/8-5R90FTP and RC1206FR-075R9L are active and meet international compliance requirements including REACH and ECCN, with an unlimited moisture sensitivity level (MSL 1). Inventory levels are available for both parts. Selection can be based solely on compliance, inventory status, and form factor equivalence as per documented parameters.

Frequently Asked Questions (FAQ)

Q1: What parameters must match to substitute RMC1/8-5R90FTP?
A1: Resistance, tolerance, power rating, package/case, composition, temperature coefficient, operating temperature, physical size, number of terminations, and moisture sensitivity level must match.

Q2: Is RC1206FR-075R9L a size-equivalent substitute for RMC1/8-5R90FTP?
A2: Yes. Both RC1206FR-075R9L and RMC1/8-5R90FTP are 1206 (3216 Metric) chip resistors with compatible dimensions.

Q3: Are both chip resistors environmentally compliant and have the same export classification?
A3: Yes. Both parts have the same REACH and ECCN status and are classified under HTSUS 8533.21.0030.

Q4: Do both parts support the same operating temperature range and moisture sensitivity rating?
A4: Yes. Both parts specify -55°C ~ 155°C operating temperature and MSL 1 (unlimited).

Q5: Can RC1206FR-075R9L be used as an electrical substitute for RMC1/8-5R90FTP without modification?
A5: Yes. RC1206FR-075R9L meets the essential electrical and mechanical parameters to serve as a substitute for RMC1/8-5R90FTP.

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