RC3216F6340CS 634 Ohm 1% 1/4W 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC3216F6340CS is a 634 Ohm ±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 1030 pieces currently in stock. The part is ROHS3 compliant, REACH unaffected, and features moisture-resistant construction suitable for general industrial applications. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Key Parameters

Parameter	Value
Resistance	634 Ohms
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

Substitute parts for the RC3216F6340CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

Resistance value: 634 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

Package type: 1206 (3216 Metric)
Number of terminations: 2
Composition: Thick Film

Compliance Parameters (Must Match):

RoHS3 compliance
REACH unaffected status
Moisture Sensitivity Level: 1 (Unlimited)

Dimensional Tolerance: Substitute parts may exhibit minor variations in length, width, and height within standard manufacturing tolerances for the 1206 package. Length ranges from 0.120" to 0.126" (3.05mm to 3.20mm), width is 0.063" (1.60mm), and seated height ranges from 0.024" to 0.028" (0.60mm to 0.70mm).

Product Status Consideration: Direct substitutes maintain Active product status where available. One substitute (ERJ-8ENF6340V) carries "Not For New Designs" status and is listed for reference in existing design continuity scenarios only.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp (°C)	Product Status	RoHS3	MSL
RC3216F6340CS	Samsung Electro-Mechanics	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Active	Yes	1
ERJ-8ENF6340V	Panasonic Electronic Components	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Not For New Designs	Yes	1
RC1206FR-07634RL	YAGEO	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Active	Yes	1
RMCF1206FT634R	Stackpole Electronics Inc	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Active	Yes	1
AC1206FR-07634RL	YAGEO	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Active	Yes	1
CRCW1206634RFKEA	Vishay Dale	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Active	Yes	1
MCR18ERTF6340	Rohm Semiconductor	634 Ω	±1%	0.25	1206	±100ppm/°C	-55 ~ 155	Discontinued at DiGi Electronics	Yes	1

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

RC1206FR-07634RL (YAGEO) – Active product status with 56,982 pieces in stock. Moisture-resistant thick film construction matches original specifications. Tape & Reel packaging. Dimensions: 0.122" L x 0.063" W, seated height 0.026".
RMCF1206FT634R (Stackpole Electronics Inc) – Active product status with 4,064 pieces in stock. Automotive AEC-Q200 rated. Tape & Reel packaging. Dimensions: 0.126" L x 0.063" W, seated height 0.028".
CRCW1206634RFKEA (Vishay Dale) – Active product status with 25,647 pieces in stock. Automotive AEC-Q200 rated. Tape & Reel packaging. Dimensions: 0.126" L x 0.063" W, seated height 0.024".
AC1206FR-07634RL (YAGEO) – Active product status with 9,808 pieces in stock. Automotive AEC-Q200 rated with moisture-resistant features. Tape & Reel packaging. Dimensions: 0.122" L x 0.063" W, seated height 0.026".

Secondary Substitute (Legacy Status):

ERJ-8ENF6340V (Panasonic Electronic Components) – Marked "Not For New Designs" but available with 18,089 pieces in stock. Automotive AEC-Q200 rated. Use only for existing design continuity or replacement scenarios. Tape & Reel packaging. Dimensions: 0.126" L x 0.063" W, seated height 0.028".

Discontinued Reference:

MCR18ERTF6340 (Rohm Semiconductor) – Discontinued at DiGi Electronics with 1,803 pieces remaining. Use only when existing inventory must be maintained. Cut Tape & Digi-Reel packaging. Dimensions: 0.120" L x 0.061" W, seated height 0.026".

All listed substitutes maintain identical electrical specifications, ROHS3 compliance, and MSL 1 rating. Selection between active substitutes depends on packaging preference (Tape & Reel availability), inventory requirements, and application-specific certifications (AEC-Q200 for automotive use).

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3216F6340CS with any of the listed parts in existing designs?

A: Yes. All listed parts share identical electrical parameters (634 Ohms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C), package type (1206), and compliance certifications (ROHS3, MSL 1). Physical dimensions vary within standard 1206 tolerances and do not affect PCB footprint compatibility.

Q: What is the difference between "Active," "Not For New Designs," and "Discontinued" status?

A: Active parts are currently manufactured and recommended for new designs. "Not For New Designs" parts are still available but no longer recommended by manufacturers for new applications. Discontinued parts have ceased production and should be used only for replacement or legacy design continuity.

Q: Are automotive-rated substitutes (AEC-Q200) compatible with non-automotive applications?

A: Yes. AEC-Q200 certification indicates automotive-grade reliability and is a superset of general industrial specifications. Automotive-rated parts can be used in non-automotive applications without functional or compliance issues.

Q: Do dimensional variations between substitutes affect PCB assembly?

A: No. All substitutes conform to the 1206 (3216 Metric) package standard. Length variations (0.120" to 0.126"), width (0.063"), and seated height variations (0.024" to 0.028") fall within standard PCB footprint tolerances and do not require design changes.

Q: Which substitute offers the best inventory availability?

A: RC1206FR-07634RL (YAGEO) has the highest inventory with 56,982 pieces in stock, followed by CRCW1206634RFKEA (Vishay Dale) with 25,647 pieces.

Q: Can I mix different substitute parts in the same production batch?

A: Yes. All substitutes meet identical electrical and mechanical specifications. However, for traceability and quality control purposes, maintaining consistent part sourcing within a single production run is recommended.

Q: What packaging formats are available for these substitutes?

A: Most substitutes are supplied in Tape & Reel (TR) format for automated assembly. MCR18ERTF6340 is available in Cut Tape (CT) & Digi-Reel format. Verify packaging requirements with your procurement process.

Q: Is moisture sensitivity a concern for these parts?

A: No. All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations. Standard handling and storage practices apply without special desiccant or baking requirements.

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