Equivalent & Substitute Parts for RC3216F6343CS

Part Overview

The RC3216F6343CS is a 634 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part is suitable for general-purpose applications requiring precision resistive elements with moisture resistance characteristics. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and environmental ratings.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	634 kOhms	Exact match required
Tolerance	±1%	Exact match required
Power Rating	0.25W (1/4W)	Exact match required
Package / Case	1206 (3216 Metric)	Exact match required
Composition	Thick Film	Exact match required
Temperature Coefficient	±100ppm/°C	Exact match required
Operating Temperature Range	-55°C ~ 155°C	Exact match required
RoHS Status	ROHS3 Compliant	Compliance requirement
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling requirement

Substitute Part Grouping Explanation

Substitute parts for RC3216F6343CS are qualified based on the following criteria:

Mandatory Matching Parameters:

Resistance: 634 kOhms
Tolerance: ±1%
Power Rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature: -55°C ~ 155°C
RoHS3 Compliance
MSL 1 Rating

Acceptable Variations:

Manufacturer identity (different suppliers)
Product status (Active or Not For New Designs)
Packaging format (Tape & Reel vs. other formats)
Physical dimensions within tolerance (length 0.122" to 0.126", height 0.026" to 0.028")
Additional certifications (AEC-Q200 automotive qualification)

All identified substitutes maintain electrical and thermal equivalence with the main part while meeting or exceeding environmental compliance requirements.

Parameter Comparison

Parameter	RC3216F6343CS (Samsung)	ERJ-8ENF6343V (Panasonic)	RC1206FR-07634KL (YAGEO)	RMCF1206FT634K (Stackpole)
Resistance	634 kOhms	634 kOhms	634 kOhms	634 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	MSL 1	MSL 1	MSL 1	MSL 1
Product Status	Active	Not For New Designs	Active	Active
Special Features	Moisture Resistant	Automotive AEC-Q200	Moisture Resistant	Automotive AEC-Q200

Engineering Selection Recommendations

Primary Selection (Preferred): RC1206FR-07634KL (YAGEO) and RMCF1206FT634K (Stackpole) are recommended as primary substitutes. Both maintain Active product status, ensuring long-term availability and manufacturing support. YAGEO RC1206FR-07634KL provides direct feature parity with moisture resistance matching the original part. RMCF1206FT634K offers automotive AEC-Q200 qualification for applications requiring enhanced reliability standards.

Secondary Selection: ERJ-8ENF6343V (Panasonic) is electrically and mechanically equivalent but carries Not For New Designs status. This part is suitable for replacement or repair applications where existing inventory exists but should not be selected for new product development.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard PCB assembly processes and storage requirements. No additional handling or environmental precautions are required beyond standard industry practices.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF6343V be used as a direct replacement for RC3216F6343CS? A: Yes, ERJ-8ENF6343V is electrically and mechanically equivalent. However, its Not For New Designs status indicates limited future availability. Use for replacement applications only.

Q: What is the difference between moisture-resistant and automotive-rated substitutes? A: Moisture-resistant variants (RC3216F6343CS, RC1206FR-07634KL) are optimized for general industrial environments. Automotive-rated variants (ERJ-8ENF6343V, RMCF1206FT634K) carry AEC-Q200 certification and are qualified for automotive temperature cycling and reliability requirements. Both are suitable for general applications.

Q: Are there physical dimension differences between substitutes? A: Minor variations exist within tolerance. Length ranges from 0.122" to 0.126" and height from 0.026" to 0.028". These differences do not affect PCB layout compatibility for standard 1206 footprints.

Q: Which substitute offers the best long-term availability? A: RC1206FR-07634KL (YAGEO) and RMCF1206FT634K (Stackpole) both carry Active status. YAGEO typically maintains larger inventory levels (3678 Pcs in stock vs. 2734 Pcs for Stackpole).

Q: Do all substitutes require the same soldering profile? A: Yes. All parts are 1206 package thick film resistors with identical thermal characteristics and MSL 1 rating, requiring standard lead-free soldering processes.

Q: Can substitutes be mixed in the same production batch? A: Yes. All substitutes meet identical electrical specifications, tolerance, and environmental ratings. Mixed sourcing is acceptable from a functional perspective, though single-source procurement is recommended for traceability.

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