RCS3216F1782CS Equivalent & Substitute Parts

Part Overview

The RCS3216F1782CS is a 17.8 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 they maintain identical electrical specifications (resistance value, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical compatibility (package type, footprint dimensions, termination count). Alternative sources become necessary due to inventory availability, supply chain optimization, or design phase requirements.

Key Parameters

Parameter	Value
Resistance	17.8 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 is determined by strict equivalence across the following parameters:

Electrical Equivalence Requirements:

Resistance value: 17.8 kOhms (exact match)
Tolerance: ±1% (exact match)
Power rating: 0.25W / 1/4W (exact match)
Temperature coefficient: ±100ppm/°C (exact match)
Operating temperature range: -55°C ~ 155°C (exact match)

Mechanical Equivalence Requirements:

Package type: 1206 (3216 Metric) (exact match)
Number of terminations: 2 (exact match)
Footprint compatibility: 0.126" L x 0.063" W nominal dimensions

Compliance Requirements:

RoHS3 compliance (mandatory)
MSL 1 rating (mandatory)
REACH Unaffected status (mandatory)

All four substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the RCS3216F1782CS.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Length (mm)	Width (mm)	Height Max (mm)	RoHS Status	MSL	Product Status
RCS3216F1782CS	Samsung Electro-Mechanics	17.8 kΩ	±1%	0.25	Thick Film	±100	-55 ~ 155	1206	3.20	1.60	0.66	ROHS3	1	Active
CR1206-FX-1782ELF	Bourns Inc.	17.8 kΩ	±1%	0.25	Thick Film	±100	-55 ~ 155	1206	3.20	1.60	0.75	ROHS3	1	Active
CRCW120617K8FKEA	Vishay Dale	17.8 kΩ	±1%	0.25	Thick Film	±100	-55 ~ 155	1206	3.20	1.60	0.60	ROHS3	1	Active
ERJ-8ENF1782V	Panasonic Electronic Components	17.8 kΩ	±1%	0.25	Thick Film	±100	-55 ~ 155	1206	3.20	1.60	0.70	ROHS3	1	Not For New Designs
RC1206FR-0717K8L	YAGEO	17.8 kΩ	±1%	0.25	Thick Film	±100	-55 ~ 155	1206	3.10	1.60	0.65	ROHS3	1	Active

Engineering Selection Recommendations

Primary Selection (Active Status): CR1206-FX-1782ELF (Bourns Inc.), CRCW120617K8FKEA (Vishay Dale), and RC1206FR-0717K8L (YAGEO) are all active products with full design support. These three parts are suitable for new designs and ongoing production.

Secondary Selection (Legacy Status): ERJ-8ENF1782V (Panasonic Electronic Components) carries "Not For New Designs" status. This part is electrically and mechanically equivalent but should be used only for replacement or maintenance of existing assemblies where design continuity is required.

Compliance Verification: All substitute parts maintain RoHS3 compliance, MSL 1 rating, and REACH Unaffected status, matching the regulatory profile of the RCS3216F1782CS.

Dimensional Considerations: Height variations exist among substitutes (0.60mm to 0.75mm maximum seated height). For applications with strict PCB clearance constraints, verify the specific height requirement against the selected substitute part.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-1782ELF replace RCS3216F1782CS directly? A: Yes. Both parts share identical electrical specifications (17.8 kΩ ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C), package type (1206), and compliance ratings (RoHS3, MSL 1). Mechanical footprint is compatible.

Q: What is the difference between the substitute parts? A: All four substitutes are electrically identical. Differences exist only in manufacturer, packaging format, product status, and maximum seated height. CR1206-FX-1782ELF, CRCW120617K8FKEA, and RC1206FR-0717K8L are active products. ERJ-8ENF1782V is legacy (not for new designs).

Q: Why is ERJ-8ENF1782V marked "Not For New Designs"? A: This designation indicates the manufacturer (Panasonic) has discontinued active development for this part. It remains available for replacement purposes but should not be selected for new circuit designs.

Q: Are there packaging differences among substitutes? A: Yes. CR1206-FX-1782ELF and ERJ-8ENF1782V are supplied in Tape & Reel (TR) format. CRCW120617K8FKEA is available in Cut Tape (CT) & Digi-Reel®. RC1206FR-0717K8L is supplied in Tape & Reel (TR). Verify packaging requirements for your procurement process.

Q: Do height differences affect PCB assembly? A: Maximum seated heights range from 0.60mm (CRCW120617K8FKEA) to 0.75mm (CR1206-FX-1782ELF). For standard PCB designs, these variations are within typical component tolerance. Verify clearance for applications with height-critical constraints (e.g., low-profile enclosures).

Q: Are all substitutes suitable for automotive applications? A: CRCW120617K8FKEA and ERJ-8ENF1782V carry AEC-Q200 automotive qualification. CR1206-FX-1782ELF and RC1206FR-0717K8L do not list automotive ratings. Select based on your application requirements.

Q: What is the inventory status of each substitute? A: CR1206-FX-1782ELF: 25,965 pcs; CRCW120617K8FKEA: 20,581 pcs; ERJ-8ENF1782V: 48,920 pcs; RC1206FR-0717K8L: 6,340 pcs. Verify current availability with your supplier.

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