RC1005F1783CS Equivalent & Substitute Parts

Part Overview

The RC1005F1783CS is a 178 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 0.063W (1/16W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support component procurement flexibility and supply chain continuity.

Substiute Parts

RC1005F1783CS

Samsung Electro-MechanicsIn Stock: 926RC1005F1783CS Datasheet

Current PartRFQ

CR0402-FX-1783GLF

Bourns Inc.In Stock: 38711CR0402-FX-1783GLF Datasheet

DirectRFQ

RC0402FR-07178KL

YAGEOIn Stock: 331254RC0402FR-07178KL Datasheet

DirectRFQ

ERJ-2RKF1783X

Panasonic Electronic ComponentsIn Stock: 228968ERJ-2RKF1783X Datasheet

UpgradeRFQ

AC0402FR-07178KL

YAGEOIn Stock: 20765AC0402FR-07178KL Datasheet

SimilarRFQ

CRCW0402178KFKED

Vishay DaleIn Stock: 116910CRCW0402178KFKED Datasheet

SimilarRFQ

RMCF0402FT178K

Stackpole Electronics IncIn Stock: 92287RMCF0402FT178K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F1783CS are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

• Resistance value: 178 kOhms
• Tolerance: ±1%
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C ~ 155°C
• Terminations: 2
• RoHS3 Compliance
• MSL 1 Rating

Substitution Categories:

Direct Equivalents maintain identical electrical and mechanical specifications including power rating (0.063W, 1/16W) and moisture resistant features. These parts are interchangeable without design modification.

Upgrade Substitutes provide enhanced power rating (0.1W, 1/10W) or additional certifications such as Automotive AEC-Q200 qualification while maintaining all core electrical parameters. These parts offer superior performance margins and are suitable for applications requiring automotive-grade reliability.

Similar Substitutes match all core electrical specifications and package dimensions but may include additional features such as automotive AEC-Q200 certification or alternative moisture resistant construction. These parts are compatible with the original design while offering enhanced qualification levels.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection:

CR0402-FX-1783GLF (Bourns Inc.) and RC0402FR-07178KL (YAGEO) function as direct equivalents to the RC1005F1783CS. Both maintain identical electrical specifications, package dimensions, and power ratings. RC0402FR-07178KL includes moisture resistant construction matching the original part specification. Selection between these options depends on supply availability and procurement lead times.

Upgrade Path for Enhanced Reliability:

ERJ-2RKF1783X (Panasonic Electronic Components) provides an upgrade option with increased power rating (0.1W versus 0.063W) and Automotive AEC-Q200 certification. This part is suitable for applications requiring automotive-grade qualification or where additional thermal margin is beneficial. The identical package and electrical specifications ensure mechanical and electrical compatibility.

Automotive-Grade Alternatives:

AC0402FR-07178KL (YAGEO), CRCW0402178KFKED (Vishay Dale), and RMCF0402FT178K (Stackpole Electronics Inc) all provide Automotive AEC-Q200 certification while maintaining the original 0.063W power rating and 0402 package. AC0402FR-07178KL additionally includes moisture resistant construction. These parts are appropriate for automotive applications or designs requiring AEC-Q200 compliance.

Supply Chain Considerations:

RC0402FR-07178KL demonstrates the highest inventory availability (331,148 pcs), followed by ERJ-2RKF1783X (228,940 pcs) and RMCF0402FT178K (92,184 pcs). All substitute parts maintain ROHS3 compliance and MSL 1 rating consistent with the original specification.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-1783GLF directly replace RC1005F1783CS in existing designs?

A: Yes. CR0402-FX-1783GLF matches all core electrical parameters (178 kOhms ±1%, 0.063W, ±100ppm/°C) and package dimensions (0402). Both parts are ROHS3 compliant with MSL 1 rating. The primary difference is that CR0402-FX-1783GLF does not specify moisture resistant construction, whereas RC1005F1783CS includes this feature. Substitution is appropriate for applications where moisture resistance is not a design requirement.

Q: What is the difference between the 0.063W and 0.1W power ratings?

A: ERJ-2RKF1783X is rated at 0.1W (1/10W) compared to the 0.063W (1/16W) rating of RC1005F1783CS. The higher power rating indicates greater thermal dissipation capability. In applications where the original 0.063W rating is adequate, the 0.1W part provides additional thermal margin without affecting electrical performance. Both parts maintain identical resistance, tolerance, and temperature coefficient specifications.

Q: Are all substitute parts suitable for automotive applications?

A: Automotive AEC-Q200 certification is present in ERJ-2RKF1783X, AC0402FR-07178KL, CRCW0402178KFKED, and RMCF0402FT178K. The original RC1005F1783CS and CR0402-FX-1783GLF do not carry AEC-Q200 certification. Selection depends on application requirements. Automotive designs requiring AEC-Q200 compliance must use certified alternatives.

Q: Does package dimension variation affect PCB layout compatibility?

A: All substitute parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm). Height specifications are consistent across all parts (0.016" maximum, with AC0402FR-07178KL at 0.015" maximum). PCB footprints and assembly processes remain unchanged.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake requirements. All listed parts, including the original RC1005F1783CS and all substitutes, carry MSL 1 rating. This eliminates moisture-related handling constraints during storage and assembly.

Q: Can RC0402FR-07178KL be used as a direct replacement for moisture-sensitive applications?

A: Yes. RC0402FR-07178KL includes moisture resistant construction matching the original RC1005F1783CS specification. Both parts maintain identical electrical parameters and MSL 1 rating. RC0402FR-07178KL is available in higher inventory quantities (331,148 pcs) and is packaged in Cut Tape (CT) & Digi-Reel® format, offering supply chain flexibility.