RCS3216J430CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J430CS is a 43 Ohm ±5% 0.25W (1/4W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component features anti-sulfur and moisture-resistant construction, operating across the temperature range of -55°C to 155°C. The part is currently active in production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as tighter tolerance specifications or enhanced power ratings.

Key Parameters

Parameter	Value
Resistance	43 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Resistance value: 43 Ohms (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 to 155°C (exact match required)
Number of Terminations: 2 (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
MSL Rating: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

Tolerance: ±5% (main part) to ±1% (substitute parts) — tighter tolerance is acceptable
Power Rating: 0.25W (main part) to 0.75W (substitute part CRCW120643R0FKEAHP) — higher power rating is acceptable
Features: Anti-sulfur, Moisture Resistant (main part) to Automotive AEC-Q200, Moisture Resistant (substitute parts) — additional certifications are acceptable

Substitute parts are grouped into two categories based on tolerance and power rating specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temperature Coefficient	Operating Temperature	RoHS Status	MSL	Product Status
RCS3216J430CS	Samsung Electro-Mechanics	43 Ohms	±5%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
AC1206FR-0743RL	YAGEO	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
CR1206-FX-43R0ELF	Bourns Inc.	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
CRCW120643R0FKEA	Vishay Dale	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
CRCW120643R0FKEAHP	Vishay Dale	43 Ohms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
ERJ-8ENF43R0V	Panasonic Electronic Components	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Not For New Designs
RC1206FR-0743RL	YAGEO	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
RC1206JR-0743RL	YAGEO	43 Ohms	±5%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
RMCF1206FT43R0	Stackpole Electronics Inc	43 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, ±1% Tolerance, 0.25W):

The following parts are direct functional equivalents with improved tolerance specifications:

AC1206FR-0743RL (YAGEO) — Automotive AEC-Q200 rated
CR1206-FX-43R0ELF (Bourns Inc.) — Moisture resistant
CRCW120643R0FKEA (Vishay Dale) — Automotive AEC-Q200 rated
RC1206FR-0743RL (YAGEO) — Moisture resistant
RMCF1206FT43R0 (Stackpole Electronics Inc) — Automotive AEC-Q200 rated

All primary substitutes maintain identical package dimensions, temperature coefficient, operating temperature range, and RoHS compliance. The ±1% tolerance provides superior accuracy compared to the RCS3216J430CS ±5% specification.

Tolerance-Matched Substitute (Active Status, ±5% Tolerance, 0.25W):

RC1206JR-0743RL (YAGEO) — Maintains the ±5% tolerance specification of the main part while offering moisture-resistant construction and active product status.

Enhanced Power Rating Substitute (Active Status, ±1% Tolerance, 0.75W):

CRCW120643R0FKEAHP (Vishay Dale) — Provides 0.75W power rating with pulse withstanding capability and Automotive AEC-Q200 certification. Suitable for applications requiring higher power dissipation margins.

Legacy Part (Not For New Designs):

ERJ-8ENF43R0V (Panasonic Electronic Components) — Meets all electrical and mechanical specifications but carries "Not For New Designs" status. Use only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216J430CS with a ±1% tolerance part?

A: Yes. All substitute parts with ±1% tolerance (AC1206FR-0743RL, CR1206-FX-43R0ELF, CRCW120643R0FKEA, RC1206FR-0743RL, RMCF1206FT43R0) are electrically and mechanically compatible. The tighter tolerance provides improved circuit accuracy without affecting physical fit or thermal performance.

Q: What is the difference between the standard CRCW120643R0FKEA and the CRCW120643R0FKEAHP variant?

A: The CRCW120643R0FKEAHP variant provides 0.75W power rating compared to 0.25W in the standard version. Both maintain ±1% tolerance and identical package dimensions. The higher power rating allows greater current handling and thermal margin. Select the HP variant only if your application requires power dissipation exceeding 0.25W.

Q: Are all substitute parts suitable for automotive applications?

A: Parts with Automotive AEC-Q200 certification (AC1206FR-0743RL, CRCW120643R0FKEA, CRCW120643R0FKEAHP, ERJ-8ENF43R0V, RMCF1206FT43R0) meet automotive qualification standards. Parts without this certification (CR1206-FX-43R0ELF, RC1206FR-0743RL, RC1206JR-0743RL) are suitable for general industrial and consumer applications.

Q: Can I use ERJ-8ENF43R0V in new designs?

A: No. ERJ-8ENF43R0V carries "Not For New Designs" status. Use this part only for replacement or repair of existing systems. For new designs, select from the active status alternatives listed in the primary substitutes section.

Q: Do all substitute parts have the same physical dimensions as the RCS3216J430CS?

A: All parts use the 1206 (3216 Metric) package. Minor variations in seated height exist (0.60mm to 0.75mm maximum), but these fall within standard PCB assembly tolerances and do not affect board-level compatibility or reflow soldering processes.

Q: Which substitute offers the best inventory availability?

A: RC1206FR-0743RL (YAGEO) has the highest inventory level at 129,371 pieces. ERJ-8ENF43R0V (Panasonic) has 135,872 pieces but is not recommended for new designs. For active designs, RC1206FR-0743RL provides both availability and active product status.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts, including the main part RCS3216J430CS and all substitutes, are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

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