RCS3216F1822CS Equivalent & Substitute Parts

Part Overview

The RCS3216F1822CS is an 18.2 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 currently active in production with 1,071 pieces in stock and carries ROHS3 compliance with MSL Level 1 rating.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings align with the main part's functional requirements. The following alternatives maintain identical resistance value, tolerance, power rating, and package configuration while offering different feature sets or manufacturer options.

Key Parameters

Parameter	Value
Resistance	18.2 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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F1822CS is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

Resistance value: 18.2 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Terminations: 2
RoHS compliance: ROHS3
MSL rating: 1 (Unlimited)

All identified substitute parts meet these mandatory criteria. Variations in physical dimensions (length, width, height) within the 1206 package specification, packaging format (Tape & Reel vs. Cut Tape), and optional features (anti-sulfur coating, automotive AEC-Q200 qualification) do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	Height Max (mm)	RoHS Status	MSL	Product Status
RCS3216F1822CS	Samsung Electro-Mechanics	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.66	ROHS3	1	Active
CR1206-FX-1822ELF	Bourns Inc.	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.75	ROHS3	1	Active
CRCW120618K2FKEA	Vishay Dale	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.60	ROHS3	1	Active
ERJ-8ENF1822V	Panasonic Electronic Components	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.70	ROHS3	1	Not For New Designs
RC1206FR-0718K2L	YAGEO	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.65	ROHS3	1	Active
RMCF1206FT18K2	Stackpole Electronics Inc	18.2 kΩ	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	0.70	ROHS3	1	Active

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed maintain full electrical and mechanical equivalence to the RCS3216F1822CS. Selection among alternatives should be based on the following factors:

Product Status: Five of the six substitute parts carry Active product status, indicating ongoing manufacturer support and availability. The ERJ-8ENF1822V is designated "Not For New Designs," which restricts its use to legacy system maintenance or existing inventory applications only.

Compliance and Certifications: All parts achieve ROHS3 compliance and MSL Level 1 rating. The CRCW120618K2FKEA, ERJ-8ENF1822V, and RMCF1206FT18K2 carry automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability. The RCS3216F1822CS and CR1206-FX-1822ELF feature moisture-resistant properties without automotive qualification. The RC1206FR-0718K2L provides moisture resistance with standard industrial qualification.

Inventory Availability: RMCF1206FT18K2 (149,506 pcs), RC1206FR-0718K2L (82,157 pcs), and ERJ-8ENF1822V (42,823 pcs) offer highest stock levels. CR1206-FX-1822ELF (24,572 pcs) and CRCW120618K2FKEA (21,472 pcs) provide moderate availability.

Physical Dimensions: Height variation ranges from 0.60mm to 0.75mm. Applications with strict PCB clearance constraints should reference specific height specifications. Length and width dimensions show minor variation (3.10mm to 3.20mm length, 1.60mm width constant) within 1206 package tolerance.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F1822CS with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts maintain identical electrical specifications (18.2 kΩ ±1%, 0.25W), operating temperature range (-55°C to 155°C), and 1206 package configuration. Physical dimensions vary slightly within package tolerance, requiring verification of PCB layout constraints only.

Q: What is the difference between the anti-sulfur feature on the RCS3216F1822CS and the moisture-resistant feature on other substitutes?

A: Anti-sulfur coating on the RCS3216F1822CS provides protection against sulfur-containing atmospheric contaminants. Moisture-resistant properties on CR1206-FX-1822ELF and RC1206FR-0718K2L protect against humidity ingress. Both are environmental protection mechanisms; selection depends on application environment. Automotive-qualified parts (CRCW120618K2FKEA, ERJ-8ENF1822V, RMCF1206FT18K2) provide comprehensive environmental protection suitable for harsh conditions.

Q: Why is ERJ-8ENF1822V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends against use in new product designs. The part remains available for legacy system support and existing inventory applications. For new designs, select from Active-status alternatives: CR1206-FX-1822ELF, CRCW120618K2FKEA, RC1206FR-0718K2L, or RMCF1206FT18K2.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. All listed parts use either Tape & Reel or Cut Tape & Digi-Reel packaging, which do not influence electrical characteristics or performance. Selection should be based on manufacturing equipment compatibility and inventory management requirements.

Q: Are automotive AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification represents a superset of standard industrial reliability requirements. Parts meeting automotive standards (CRCW120618K2FKEA, ERJ-8ENF1822V, RMCF1206FT18K2) are fully compatible with non-automotive applications and offer enhanced reliability margins.

Q: What is MSL Level 1 and why is it important?

A: Moisture Sensitivity Level (MSL) 1 indicates unlimited shelf life without moisture-controlled storage requirements. All listed parts carry MSL 1 rating, eliminating the need for desiccant packaging or controlled humidity storage conditions during inventory management.

Q: Can I mix different substitute parts within the same circuit board assembly?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. Mixed sourcing is permissible from an engineering standpoint. However, manufacturing and supply chain considerations may favor single-source standardization for consistency and traceability.

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