RMCF2010FT178R Equivalent & Substitute Parts

Part Overview

The RMCF2010FT178R is a 178 Ohms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor meets automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently active in production with 3430 units in stock. Substitute parts are identified when identical electrical specifications, mechanical dimensions, and compliance ratings are maintained across alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	178 Ohms
Tolerance	±1%
Power Rating	0.75W (3/4W)
Package / Case	2010 (5025 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Terminations	2

Substitute Part Grouping Explanation

Substitution of the RMCF2010FT178R is valid when the following parameters are identical:

Resistance value: 178 Ohms
Tolerance: ±1%
Power rating: 0.75W
Package dimensions: 2010 (5025 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Automotive qualification: AEC-Q200
RoHS compliance: ROHS3
Moisture sensitivity: MSL 1

The CRCW2010178RFKEF from Vishay Dale meets all these criteria and is classified as a direct equivalent.

Parameter Comparison

Parameter	RMCF2010FT178R (Stackpole)	CRCW2010178RFKEF (Vishay Dale)
Resistance	178 Ohms	178 Ohms
Tolerance	±1%	±1%
Power Rating	0.75W	0.75W
Package / Case	2010 (5025 Metric)	2010 (5025 Metric)
Composition	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C
AEC-Q200 Rating	Yes	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Size / Dimension	0.197" L x 0.098" W (5.00mm x 2.50mm)	0.197" L x 0.098" W (5.00mm x 2.50mm)
Height - Seated (Max)	0.028" (0.70mm)	0.028" (0.70mm)
Number of Terminations	2	2
Product Status	Active	Active

Engineering Selection Recommendations

Both the RMCF2010FT178R and CRCW2010178RFKEF are active production parts with identical electrical and mechanical specifications. Selection between these parts may be based on:

Packaging format availability: RMCF2010FT178R is supplied in Tape & Reel (TR); CRCW2010178RFKEF is available in Cut Tape (CT) & Digi-Reel®
Inventory status and lead time from respective manufacturers
Supply chain and procurement preferences
Both parts maintain ROHS3 compliance and AEC-Q200 automotive qualification
Both parts carry MSL 1 rating, indicating no moisture sensitivity restrictions

Frequently Asked Questions (FAQ)

Q: Can CRCW2010178RFKEF replace RMCF2010FT178R in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified with identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range. Mechanical dimensions and package type are identical.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is used for automated assembly lines with reel-based pick-and-place equipment. Cut Tape (CT) & Digi-Reel® packaging is suitable for lower-volume applications or manual assembly. Electrical and mechanical performance are identical.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS classifications.

Q: What does MSL 1 (Unlimited) mean?

A: MSL 1 indicates the part has unlimited shelf life and requires no special moisture control during storage or handling.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Identical package dimensions (2010 / 5025 Metric), footprint, and height ensure direct PCB compatibility.

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