RCS3216F6343CS Equivalent & Substitute Parts

Part Overview

The RCS3216F6343CS is a 634 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties with an operating temperature range of -55°C to 155°C. The part maintains Active product status with 967 pieces currently in stock.

Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without functional degradation.

Key Parameters

Parameter	Value
Resistance	634 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 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 RCS3216F6343CS is determined by strict alignment of the following parameters:

Critical Matching Parameters:

Resistance value: 634 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS compliance: ROHS3
Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these electrical and mechanical specifications. Variations in physical dimensions (length and height) remain within acceptable tolerances for 1206 package classification and do not affect circuit board layout compatibility.

Parameter Comparison

Parameter	RCS3216F6343CS (Samsung)	ERJ-8ENF6343V (Panasonic)	RC1206FR-07634KL (YAGEO)
Resistance	634 kOhms	634 kOhms	634 kOhms
Tolerance	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Length	0.126" (3.20mm)	0.126" (3.20mm)	0.122" (3.10mm)
Width	0.063" (1.60mm)	0.063" (1.60mm)	0.063" (1.60mm)
Height (Max)	0.026" (0.66mm)	0.028" (0.70mm)	0.026" (0.65mm)
Product Status	Active	Not For New Designs	Active

Engineering Selection Recommendations

RCS3216F6343CS (Samsung Electro-Mechanics) - Primary Selection

Active product status with established supply chain. Anti-sulfur and moisture-resistant features provide enhanced environmental protection. Recommended for new designs and long-term production requirements.

RC1206FR-07634KL (YAGEO) - Preferred Substitute

Active product status ensures continued availability. Moisture-resistant composition matches functional requirements. Minimal dimensional variation (0.122" length vs. 0.126") remains within 1206 package tolerance. Suitable for direct replacement in both new and existing designs.

ERJ-8ENF6343V (Panasonic Electronic Components) - Alternative Substitute

Automotive AEC-Q200 qualification provides additional reliability assurance for demanding applications. Product status listed as "Not For New Designs" restricts use to replacement and maintenance scenarios only. Height specification (0.028" maximum) represents the upper tolerance limit for 1206 package but remains compatible with standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF6343V be used in new product designs?

A: No. ERJ-8ENF6343V carries a "Not For New Designs" product status designation. This part is suitable only for replacement, repair, and maintenance of existing equipment. New designs should specify RCS3216F6343CS or RC1206FR-07634KL.

Q: Are dimensional differences between substitute parts significant?

A: No. All three parts conform to the 1206 (3216 Metric) package standard. Length variations (0.122" to 0.126") and height variations (0.026" to 0.028") fall within established package tolerances and do not affect PCB footprint compatibility or circuit performance.

Q: What is the significance of the AEC-Q200 rating on the Panasonic part?

A: AEC-Q200 is an automotive qualification standard indicating enhanced reliability testing and quality assurance. This certification is relevant only if the application requires automotive-grade components. For general industrial and commercial applications, this certification provides no functional advantage.

Q: Do all substitute parts have identical moisture sensitivity levels?

A: Yes. All three parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Which substitute part offers the best long-term availability?

A: RC1206FR-07634KL (YAGEO) is recommended for long-term availability assurance due to Active product status and established global distribution. RCS3216F6343CS maintains Active status but with lower current inventory levels (967 units vs. 3678 units).

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