RCS2012F1691CS Equivalent & Substitute Parts

Part Overview

The RCS2012F1691CS is a 1.69 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value
Resistance	1.69 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F1691CS is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

Resistance value: 1.69 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Critical Mechanical Parameters:

Package type: 0805 (2012 Metric)
Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
Number of terminations: 2

Compliance Parameters:

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status

All identified substitute parts meet these criteria. Variations in seated height (0.020" to 0.028") remain within acceptable PCB assembly tolerances for 0805 components and do not affect electrical performance or mechanical fit.

Parameter Comparison

Parameter	RCS2012F1691CS (Samsung)	CRCW08051K69FKEA (Vishay Dale)	ERJ-6ENF1691V (Panasonic)	RC0805FR-071K69L (YAGEO)	RMCF0805FT1K69 (Stackpole)
Resistance	1.69 kOhms	1.69 kOhms	1.69 kOhms	1.69 kOhms	1.69 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 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
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)	0.026" (0.65mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the RCS2012F1691CS and are suitable for direct replacement based on electrical and mechanical compatibility.

CRCW08051K69FKEA (Vishay Dale): Automotive AEC-Q200 rated. Lowest seated height (0.020"). Suitable for applications requiring automotive-grade qualification.

ERJ-6ENF1691V (Panasonic Electronic Components): Automotive AEC-Q200 rated. Highest seated height (0.028"). Suitable for applications requiring automotive-grade qualification with maximum height tolerance.

RC0805FR-071K69L (YAGEO): Standard industrial grade without automotive certification. Mid-range seated height (0.024"). Suitable for general industrial and consumer applications.

RMCF0805FT1K69 (Stackpole Electronics Inc): Automotive AEC-Q200 rated. Seated height (0.026") matches original component specification. Suitable for applications requiring automotive-grade qualification with height consistency to original design.

Selection between substitute parts depends on application requirements: automotive applications benefit from AEC-Q200 rated options, while industrial applications may use standard-grade alternatives. All parts maintain identical electrical performance and PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051K69FKEA replace RCS2012F1691CS in any application?

A: Yes, CRCW08051K69FKEA meets all electrical and mechanical specifications for direct substitution. The lower seated height (0.020" vs 0.026") does not affect functionality or PCB assembly compatibility for 0805 components.

Q: What is the difference between automotive AEC-Q200 rated and non-rated substitutes?

A: AEC-Q200 rated parts (CRCW08051K69FKEA, ERJ-6ENF1691V, RMCF0805FT1K69) comply with automotive industry qualification standards. Non-rated parts (RC0805FR-071K69L) are suitable for general industrial and consumer applications. Selection depends on end-application requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 Compliant with MSL rating of 1 (Unlimited) and REACH Unaffected status, matching the original RCS2012F1691CS compliance profile.

Q: Does seated height variation affect PCB assembly?

A: No. Seated height variations among 0805 components (0.020" to 0.028") are within standard PCB assembly tolerances and do not affect electrical performance, mechanical fit, or reflow soldering processes.

Q: Can substitute parts be mixed in the same production batch?

A: Yes, all substitute parts are electrically and mechanically equivalent. However, design documentation and bill of materials should specify the selected part number for traceability and supply chain consistency.

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

A: The identical temperature coefficient ensures consistent resistance stability across the operating temperature range (-55°C ~ 155°C) for all parts, maintaining circuit performance equivalence regardless of which substitute is selected.

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