RCS3216F1783CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F1783CS is a 178 kOhms ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part maintains Active product status with 702 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance ratings to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RCS3216F1783CS

Samsung Electro-MechanicsIn Stock: 740RCS3216F1783CS Datasheet

Current PartRFQ

CR1206-FX-1783ELF

Bourns Inc.In Stock: 25992CR1206-FX-1783ELF Datasheet

SimilarRFQ

CRCW1206178KFKEA

Vishay DaleIn Stock: 12975CRCW1206178KFKEA Datasheet

SimilarRFQ

ERJ-8ENF1783V

Panasonic Electronic ComponentsIn Stock: 14868ERJ-8ENF1783V Datasheet

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RC1206FR-07178KL

YAGEOIn Stock: 5129RC1206FR-07178KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F1783CS is determined by strict alignment with the following core parameters:

Electrical Parameters: Resistance value (178 kOhms), tolerance (±1%), and power rating (0.25W) must match exactly. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package format (1206 / 3216 Metric) and number of terminations (2) ensure physical and electrical compatibility with PCB layouts and soldering processes.

Environmental & Compliance Parameters: Moisture Sensitivity Level 1 (Unlimited), RoHS3 compliance, and REACH unaffected status maintain regulatory and reliability standards.

Composition: Thick film construction is required for consistent performance characteristics.

All identified substitute parts meet these criteria without exception. Variations in height-seated dimensions, packaging format (Tape & Reel), and specific feature sets (anti-sulfur, automotive AEC-Q200 certification) do not affect functional substitutability but may influence procurement and application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status, Standard Features):

CR1206-FX-1783ELF (Bourns Inc.) and RC1206FR-07178KL (YAGEO) are recommended as primary substitutes. Both maintain Active product status, ensuring long-term availability and continued manufacturer support. CR1206-FX-1783ELF offers the highest inventory availability (25,971 units) with moisture-resistant construction. RC1206FR-07178KL provides an alternative from YAGEO with 5,022 units in stock and equivalent moisture-resistant specifications.

Automotive-Grade Alternative (AEC-Q200 Certified):

CRCW1206178KFKEA (Vishay Dale) is suitable for applications requiring automotive-grade reliability. This part carries AEC-Q200 certification with 12,952 units available and Active product status. Selection of this variant is appropriate when automotive compliance or enhanced reliability margins are specified in design requirements.

Legacy Consideration (Not For New Designs):

ERJ-8ENF1783V (Panasonic Electronic Components) carries "Not For New Designs" status despite meeting all electrical and mechanical specifications. This part is suitable only for replacement or maintenance of existing assemblies. New circuit designs should not incorporate this part number.

Compliance Verification:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the primary RCS3216F1783CS component. MSL 1 (Unlimited) rating across all options ensures compatibility with standard PCB assembly processes without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-1783ELF directly replace RCS3216F1783CS in existing PCB layouts?

A: Yes. Both components share identical 1206 (3216 Metric) package dimensions, 178 kOhms resistance, ±1% tolerance, 0.25W power rating, and ±100ppm/°C temperature coefficient. Physical footprint and electrical performance are equivalent. Tape & Reel packaging of the substitute does not affect component functionality.

Q: What is the difference between the anti-sulfur feature of RCS3216F1783CS and the moisture-resistant feature of substitute parts?

A: Anti-sulfur construction in the RCS3216F1783CS provides protection against sulfur-containing atmospheric contaminants. Moisture-resistant construction in substitute parts (CR1206-FX-1783ELF, RC1206FR-07178KL) protects against humidity ingress. Both are environmental protection mechanisms. The RCS3216F1783CS combines both features; substitutes provide moisture resistance. Selection depends on specific environmental exposure conditions in the application.

Q: Why is ERJ-8ENF1783V marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and long-term support for this product line. While the part meets all electrical and mechanical specifications and remains functionally equivalent, it should not be selected for new circuit designs. Use this part only for field replacement or maintenance of existing assemblies containing this component.

Q: Does CRCW1206178KFKEA automotive AEC-Q200 certification affect compatibility with non-automotive applications?

A: No. AEC-Q200 certification represents an additional qualification standard exceeding standard commercial requirements. A part certified to AEC-Q200 is fully compatible with non-automotive applications. The automotive-grade part can be used as a direct substitute in any application where the standard RCS3216F1783CS is specified, with no functional or reliability concerns.

Q: Are there differences in height-seated dimensions between substitute parts?

A: Yes. Height-seated dimensions vary slightly: RCS3216F1783CS (0.66mm), CR1206-FX-1783ELF (0.75mm), CRCW1206178KFKEA (0.60mm), ERJ-8ENF1783V (0.70mm), and RC1206FR-07178KL (0.65mm). These variations fall within standard 1206 package tolerances and do not affect PCB assembly compatibility or component functionality. Clearance verification is recommended only in applications with extremely tight vertical space constraints.

Q: What inventory considerations should guide substitute part selection?

A: CR1206-FX-1783ELF (Bourns) offers the highest inventory availability at 25,971 units, providing supply security for high-volume production. CRCW1206178KFKEA (Vishay Dale) provides 12,952 units with automotive certification. RC1206FR-07178KL (YAGEO) offers 5,022 units. RCS3216F1783CS (Samsung) has 702 units. Inventory levels should be evaluated against production volume and lead-time requirements.

Q: Is MSL 1 (Unlimited) rating consistent across all parts?

A: Yes. All parts, including the primary RCS3216F1783CS and all substitutes, carry MSL 1 (Unlimited) rating. This means no moisture bake-out is required before soldering, and components can be stored indefinitely under normal conditions without special humidity control.