RCS3216F430CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F430CS is a 43 Ohm ±1% 0.25W (1/4W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component is classified as Active product status and features anti-sulfur and moisture-resistant construction. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package format and performance parameters. This reference provides direct substitution options for design flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Specification
Resistance Value	43 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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F430CS is determined by strict adherence to the following parameters:

Critical Matching Parameters:

Resistance Value: 43 Ohms (exact match required)
Tolerance: ±1% (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)
Number of Terminations: 2 (exact match required)

Allowable Variation Parameters:

Power Rating: 0.25W (1/4W) or higher ratings (0.75W) are acceptable as they provide equal or greater capability
Manufacturer: Different manufacturers permitted
Series designation: Varies by manufacturer
Physical dimensions: Minor variations within package class tolerance
Height - Seated: Variations within 1206 package specification
Features: Additional certifications (AEC-Q200, Automotive qualification) are acceptable enhancements

All substitute parts listed maintain full electrical and mechanical compatibility with the RCS3216F430CS within standard PCB assembly processes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Product Status	RoHS Status
RCS3216F430CS	Samsung Electro-Mechanics	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
AC1206FR-0743RL	YAGEO	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
CR1206-FX-43R0ELF	Bourns Inc.	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
CRCW120643R0FKEA	Vishay Dale	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
CRCW120643R0FKEAHP	Vishay Dale	43 Ohms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
ERJ-8ENF43R0V	Panasonic Electronic Components	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	ROHS3
RC1206FR-0743RL	YAGEO	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3
RMCF1206FT43R0	Stackpole Electronics Inc	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Active Status, Equivalent Power Rating):

The following parts provide direct substitution with identical electrical and mechanical specifications:

AC1206FR-0743RL (YAGEO): Active product status with AEC-Q200 automotive qualification. Suitable for applications requiring automotive-grade reliability.
CR1206-FX-43R0ELF (Bourns Inc.): Active product status with standard industrial specifications. Highest inventory availability (25,873 pcs).
CRCW120643R0FKEA (Vishay Dale): Active product status with AEC-Q200 automotive qualification. Moderate inventory (3,977 pcs).
RC1206FR-0743RL (YAGEO): Active product status with standard industrial specifications. Highest inventory availability (129,371 pcs).
RMCF1206FT43R0 (Stackpole Electronics Inc): Active product status with AEC-Q200 automotive qualification. Suitable for automotive applications.

Enhanced Capability Substitute (Higher Power Rating):

CRCW120643R0FKEAHP (Vishay Dale): Active product status with 0.75W power rating (3× higher than base specification). Provides pulse withstanding capability and AEC-Q200 automotive qualification. Use when circuit design permits higher power dissipation margin or when pulse immunity is required.

Legacy / Obsolescence Consideration:

ERJ-8ENF43R0V (Panasonic Electronic Components): Marked "Not For New Designs." Retain for existing inventory or legacy system maintenance only. Do not select for new product development.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C ~ 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F430CS with a part having a different power rating?

A: Yes. Parts with equal or higher power ratings are acceptable substitutes. The CRCW120643R0FKEAHP (0.75W) provides enhanced capability. Lower power ratings are not acceptable.

Q: Are there dimensional differences between substitute parts?

A: All substitutes use the 1206 (3216 Metric) package. Minor height variations exist (0.024" to 0.030" seated height) but remain within standard 1206 package tolerance and do not affect PCB assembly compatibility.

Q: Which substitute should I select for automotive applications?

A: Parts with AEC-Q200 certification are qualified for automotive use: AC1206FR-0743RL, CRCW120643R0FKEA, CRCW120643R0FKEAHP, ERJ-8ENF43R0V, and RMCF1206FT43R0. Verify specific automotive qualification requirements with your design specification.

Q: Is ERJ-8ENF43R0V still available for new designs?

A: No. This part is marked "Not For New Designs." It remains available in inventory (135,872 pcs) for legacy system support and existing product maintenance only. Select an Active-status alternative for new product development.

Q: What is the difference between standard and AEC-Q200 qualified parts?

A: AEC-Q200 qualification indicates automotive-grade reliability testing and qualification. Standard industrial parts meet general commercial specifications. Both are electrically and mechanically equivalent for the 43 Ohm ±1% 1206 specification.

Q: Can I use CRCW120643R0FKEAHP as a direct replacement?

A: Yes. The CRCW120643R0FKEAHP is a direct mechanical and electrical substitute with enhanced 0.75W power capability. It occupies the same PCB footprint and operates within the same temperature range. The higher power rating provides additional design margin.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the RCS3216F430CS specification.

Q: Which substitute has the highest inventory availability?

A: RC1206FR-0743RL (YAGEO) with 129,371 pcs in stock, followed by ERJ-8ENF43R0V (Panasonic) with 135,872 pcs (legacy status).

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