RCS3216F4322CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F4322CS is a 43.2 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, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is RoHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical dimensions are maintained across the same package form factor. Alternative sources provide equivalent performance for applications requiring component availability, supply chain flexibility, or specific manufacturing certifications.

Key Parameters

Parameter	Specification
Resistance Value	43.2 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)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Resistance Value: 43.2 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.25W / 1/4W (exact match required)
Package Form Factor: 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 Compliance: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria. Physical dimensions (length, width, height) and termination count remain consistent across all alternatives. Packaging format (Tape & Reel or Cut Tape) and inventory availability do not affect electrical or mechanical substitutability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	RoHS	MSL	Product Status
RCS3216F4322CS	Samsung Electro-Mechanics	43.2 kΩ	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
CR1206-FX-4322ELF	Bourns Inc.	43.2 kΩ	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
CRCW120643K2FKEA	Vishay Dale	43.2 kΩ	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active
ERJ-8ENF4322V	Panasonic Electronic Components	43.2 kΩ	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Not For New Designs
RC1206FR-0743K2L	YAGEO	43.2 kΩ	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Active

Engineering Selection Recommendations

Primary Selection (Active Status)

CR1206-FX-4322ELF (Bourns Inc.), CRCW120643K2FKEA (Vishay Dale), and RC1206FR-0743K2L (YAGEO) are all designated as Active products and represent current manufacturing lines suitable for new designs and ongoing production requirements.

Automotive-Qualified Alternatives

CRCW120643K2FKEA carries AEC-Q200 automotive qualification, appropriate for applications requiring automotive-grade component certification.

Legacy Availability

ERJ-8ENF4322V (Panasonic Electronic Components) is marked "Not For New Designs" but remains electrically and mechanically equivalent. This designation indicates the manufacturer is transitioning away from this product line. Use only for replacement or maintenance of existing assemblies where supply continuity is established.

Compliance Consistency

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH Unaffected status identical to the primary part. No compliance trade-offs exist across the substitute group.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-4322ELF replace RCS3216F4322CS in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (43.2 kΩ), tolerance (±1%), power rating (0.25W), package (1206), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). Both are Active products with ROHS3 compliance and MSL 1 rating.

Q: What is the difference between the Bourns and Vishay alternatives?

A: CR1206-FX-4322ELF (Bourns) and CRCW120643K2FKEA (Vishay Dale) are electrically identical. The Vishay part includes AEC-Q200 automotive qualification. Physical height differs slightly (0.030" vs 0.024" seated maximum), but both conform to 1206 package specifications. Selection depends on automotive certification requirements.

Q: Why is ERJ-8ENF4322V marked "Not For New Designs"?

A: This designation indicates Panasonic is discontinuing this product line. The part remains electrically and mechanically equivalent but should not be selected for new circuit designs. Use only for replacement stock in existing production or maintenance applications.

Q: Are packaging formats (Tape & Reel vs Cut Tape) interchangeable?

A: Packaging format affects handling and assembly logistics but does not alter electrical or mechanical performance. Both Tape & Reel and Cut Tape formats contain identical components. Selection depends on assembly equipment compatibility and procurement workflow.

Q: Does YAGEO RC1206FR-0743K2L have different physical dimensions?

A: RC1206FR-0743K2L has a slightly smaller length (0.122" vs 0.126") and height (0.026" vs 0.026" maximum) compared to the primary part, but remains within 1206 package specifications. These minor dimensional variations do not affect circuit board layout or assembly compatibility.

Q: Are all substitutes suitable for -55°C to 155°C operating range?

A: Yes. All substitute parts maintain the identical operating temperature range of -55°C to 155°C with ±100ppm/°C temperature coefficient. No thermal performance trade-offs exist.

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