RC2012F6343CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F6343CS is a 634 kOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This thick film resistor features moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 1089 pieces currently in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component. Alternative sources provide equivalent performance while maintaining compatibility with existing circuit designs and assembly processes.

Key Parameters

Parameter	Value	Specification Type
Resistance	634 kOhms	Electrical
Tolerance	±1%	Electrical
Power Rating	0.125W (1/8W)	Electrical
Package / Case	0805 (2012 Metric)	Mechanical
Composition	Thick Film	Material
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C ~ 155°C	Environmental
RoHS Status	ROHS3 Compliant	Compliance
Moisture Sensitivity Level	1 (Unlimited)	Environmental

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following parameters:

Electrical Parameters (Critical):

Resistance value: 634 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

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

All identified substitute parts meet these core requirements. Variations in seated height and specific feature sets (moisture resistant vs. automotive AEC-Q200) do not affect functional substitutability within standard circuit applications.

Parameter Comparison

Parameter	RC2012F6343CS (Samsung)	RC0805FR-07634KL (YAGEO)	CRCW0805634KFKEA (Vishay Dale)	ERJ-6ENF6343V (Panasonic)
Resistance	634 kOhms	634 kOhms	634 kOhms	634 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±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
Dimensions (L x W)	0.079" x 0.049"	0.079" x 0.049"	0.079" x 0.049"	0.079" x 0.049"
Height - Seated (Max)	0.026" (0.66mm)	0.024" (0.60mm)	0.020" (0.50mm)	0.028" (0.70mm)
Terminations	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the RC2012F6343CS based on electrical and mechanical specifications. Selection among alternatives depends on application-specific requirements and supply chain considerations:

RC0805FR-07634KL (YAGEO): Direct equivalent with moisture-resistant composition matching the original specification. Suitable for general industrial and consumer applications requiring standard reliability.

CRCW0805634KFKEA (Vishay Dale): Includes automotive AEC-Q200 qualification. Appropriate for automotive and high-reliability applications where enhanced qualification standards are required or specified.

ERJ-6ENF6343V (Panasonic): Includes automotive AEC-Q200 qualification. Suitable for automotive and high-reliability applications with equivalent qualification status to the Vishay Dale alternative.

All parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status. Seated height variations (0.50mm to 0.70mm) remain within acceptable tolerances for standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-07634KL replace RC2012F6343CS in any application?

A: Yes. Both parts share identical electrical specifications (634 kOhms ±1%, 0.125W, ±100ppm/°C), mechanical dimensions (0805 package, 2.00mm x 1.25mm), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1, REACH Unaffected). The 0.06mm difference in seated height does not affect circuit functionality or PCB assembly compatibility.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?

A: The RC2012F6343CS and RC0805FR-07634KL feature moisture-resistant composition. The CRCW0805634KFKEA and ERJ-6ENF6343V include automotive AEC-Q200 qualification, indicating enhanced reliability testing and qualification for automotive applications. Both feature sets are compatible with the same electrical and mechanical requirements.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All identified substitute parts are supplied in Tape & Reel (TR) packaging, maintaining compatibility with automated assembly processes.

Q: Does the seated height variation affect PCB assembly?

A: No. Seated height variations range from 0.020" (0.50mm) to 0.028" (0.70mm), all within standard PCB assembly tolerances for 0805 components. These variations do not impact solder joint formation, clearance, or circuit performance.

Q: Are all parts RoHS3 compliant?

A: Yes. All substitute parts maintain ROHS3 compliance status, meeting environmental and regulatory requirements equivalent to the original RC2012F6343CS.

Q: Can automotive-qualified parts be used in non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts (CRCW0805634KFKEA and ERJ-6ENF6343V) exceed standard reliability requirements and are fully compatible with non-automotive applications. Their use provides enhanced reliability margins without circuit modification.

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