RC1005F1871CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F1871CS is a 1.87 kOhm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This component is rated at 0.063W (1/16W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity rating).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative manufacturing sources while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	1.87 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	RoHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F1871CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 1.87 kOhms
Tolerance: ±1%
Package / Case: 0402 (1005 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
Number of Terminations: 2
RoHS3 Compliance
MSL Level 1

Allowable Variations:

Power rating may be equal or higher (0.063W minimum)
Packaging format (Tape & Reel or Cut Tape) may differ
Manufacturer and series designation differ by design
Additional features (Automotive AEC-Q200, Moisture Resistant) may be present

Substitute parts are categorized as Direct, Upgrade, or Similar based on these parameter alignments.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	RoHS3	MSL
RC1005F1871CS	Samsung Electro-Mechanics	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Moisture Resistant	Yes	1
CR0402-FX-1871GLF	Bourns Inc.	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	None Listed	Yes	1
RC0402FR-071K87L	YAGEO	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Moisture Resistant	Yes	1
ERJ-2RKF1871X	Panasonic Electronic Components	1.87 kΩ	±1%	0.1	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	1
AC0402FR-071K87L	YAGEO	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Yes	1
CRCW04021K87FKED	Vishay Dale	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	1
RMCF0402FT1K87	Stackpole Electronics Inc	1.87 kΩ	±1%	0.063	0402	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	1

Engineering Selection Recommendations

Direct Substitutes (Electrical and Mechanical Equivalence):

CR0402-FX-1871GLF (Bourns Inc.) and RC0402FR-071K87L (YAGEO) are direct substitutes meeting all mandatory parameters. Both maintain identical resistance, tolerance, power rating, package dimensions, and temperature specifications. RC0402FR-071K87L includes moisture-resistant construction matching the primary part. Both parts carry Active product status and RoHS3 compliance.

Upgrade Substitute (Enhanced Power Rating):

ERJ-2RKF1871X (Panasonic Electronic Components) provides a 0.1W power rating compared to the 0.063W specification of the primary part. This represents a power rating upgrade while maintaining all other critical parameters. The part includes Automotive AEC-Q200 certification. This substitution is applicable in designs where increased thermal margin is beneficial.

Similar Substitutes (Additional Certifications):

AC0402FR-071K87L (YAGEO), CRCW04021K87FKED (Vishay Dale), and RMCF0402FT1K87 (Stackpole Electronics Inc) are functionally equivalent with identical electrical specifications and package format. These parts include Automotive AEC-Q200 certification, which is an additional qualification not present in the primary part. AC0402FR-071K87L additionally includes moisture-resistant construction. These parts are suitable for applications requiring automotive-grade reliability.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and -55°C to 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-1871GLF replace RC1005F1871CS in all applications?

A: CR0402-FX-1871GLF meets all mandatory electrical and mechanical parameters. Both parts are 1.87 kOhm ±1% thick film resistors in 0402 package with identical temperature coefficients and operating ranges. The primary difference is manufacturer designation. Substitution is valid where moisture-resistant construction is not explicitly required in the design specification.

Q: What is the difference between the primary part and ERJ-2RKF1871X?

A: ERJ-2RKF1871X provides a higher power rating of 0.1W compared to the 0.063W rating of RC1005F1871CS. All other parameters including resistance, tolerance, package, and temperature range are identical. The upgrade in power rating provides additional thermal headroom and is suitable for applications with higher power dissipation requirements. ERJ-2RKF1871X includes Automotive AEC-Q200 certification.

Q: Are the moisture-resistant variants interchangeable with non-moisture-resistant variants?

A: Moisture-resistant construction is an additional feature that does not prevent substitution with standard thick film variants. RC0402FR-071K87L and AC0402FR-071K87L include moisture-resistant construction. Parts without this designation (CR0402-FX-1871GLF, CRCW04021K87FKED, RMCF0402FT1K87) are electrically equivalent but lack this specific feature. Selection depends on application environmental requirements.

Q: What does Automotive AEC-Q200 certification indicate?

A: Automotive AEC-Q200 certification indicates the part meets automotive industry reliability and qualification standards. Parts with this certification (ERJ-2RKF1871X, AC0402FR-071K87L, CRCW04021K87FKED, RMCF0402FT1K87) are qualified for automotive applications. This certification is not present in the primary part or CR0402-FX-1871GLF. Substitution with AEC-Q200 certified parts is valid for automotive designs.

Q: Can packaging format differences affect substitution?

A: Packaging format refers to supply method (Tape & Reel or Cut Tape). RC0402FR-071K87L is supplied in Cut Tape & Digi-Reel format while most other parts use Tape & Reel. This difference affects procurement and handling but does not impact electrical or mechanical compatibility. Component specifications remain identical regardless of packaging format.

Q: Are all substitute parts currently in stock?

A: Inventory status is provided for reference. CR0402-FX-1871GLF has 27,647 units, RC0402FR-071K87L has 122,279 units, ERJ-2RKF1871X has 114,953 units, AC0402FR-071K87L has 29,347 units, CRCW04021K87FKED has 48,343 units, and RMCF0402FT1K87 has 98,070 units available. Inventory levels are subject to change and should be verified at time of procurement.

Q: What is MSL Level 1 significance?

A: MSL (Moisture Sensitivity Level) Level 1 indicates Unlimited shelf life without moisture control requirements. All listed parts, including the primary part and all substitutes, carry MSL Level 1 rating. This means components can be stored and handled without specialized moisture-control packaging or desiccant requirements.

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