RC1005F432CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F432CS is a 4.3 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This component is rated for 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 and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Equivalent and substitute parts are identified when component availability becomes limited, supply chain disruptions occur, or design requirements necessitate alternative sourcing from qualified manufacturers. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

RC1005F432CS

Samsung Electro-MechanicsIn Stock: 808RC1005F432CS Datasheet

Current PartRFQ

CR0402-FX-4301GLF

Bourns Inc.In Stock: 37558CR0402-FX-4301GLF Datasheet

DirectRFQ

CRG0402F4K3

TE Connectivity Passive ProductIn Stock: 40839CRG0402F4K3 Datasheet

DirectRFQ

RC0402FR-074K3L

YAGEOIn Stock: 328190RC0402FR-074K3L Datasheet

DirectRFQ

ERJ-2RKF4301X

Panasonic Electronic ComponentsIn Stock: 280828ERJ-2RKF4301X Datasheet

UpgradeRFQ

AC0402FR-074K3L

YAGEOIn Stock: 16642AC0402FR-074K3L Datasheet

SimilarRFQ

CRCW04024K30FKED

Vishay DaleIn Stock: 72815CRCW04024K30FKED Datasheet

SimilarRFQ

RMCF0402FT4K30

Stackpole Electronics IncIn Stock: 102248RMCF0402FT4K30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Equivalence Parameters:

• Resistance value: 4.3 kOhms
• Tolerance: ±1%
• Package / Case: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100 ppm/°C
• Operating Temperature Range: -55°C to 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Power Rating Consideration: Substitute parts are classified into two categories based on power rating:

Direct Equivalents (0.063W / 1/16W): CR0402-FX-4301GLF (Bourns Inc.), CRG0402F4K3 (TE Connectivity), RC0402FR-074K3L (YAGEO), AC0402FR-074K3L (YAGEO), CRCW04024K30FKED (Vishay Dale), and RMCF0402FT4K30 (Stackpole Electronics) maintain identical power ratings and are fully interchangeable in applications designed for 1/16W dissipation.

Upgrade Equivalent (0.1W / 1/10W): ERJ-2RKF4301X (Panasonic Electronic Components) provides higher power rating capability while maintaining all other electrical and mechanical parameters. This part is suitable for applications where increased thermal margin is beneficial.

Packaging Format Variation: AC0402FR-074K3L is supplied in Cut Tape (CT) & Digi-Reel® format, whereas the main part and other substitutes use Tape & Reel (TR) packaging. This distinction affects handling and assembly processes but does not impact electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Preferred for Pin-Compatible Replacement):

CR0402-FX-4301GLF, CRG0402F4K3, RC0402FR-074K3L, AC0402FR-074K3L, CRCW04024K30FKED, and RMCF0402FT4K30 are electrically and mechanically equivalent to RC1005F432CS. All maintain Active product status and ROHS3 compliance. Selection among these options should be based on:

• Availability and lead time from authorized distributors
• Packaging format compatibility with assembly equipment (Tape & Reel vs. Cut Tape)
• Inventory levels and cost considerations
• Existing qualification history within the design organization

Upgrade Substitution (Higher Power Margin):

ERJ-2RKF4301X from Panasonic Electronic Components provides 0.1W (1/10W) power rating compared to the 0.063W (1/16W) specification of the main part. This higher power rating allows for increased thermal margin in applications where power dissipation approaches the component limit. The part is AEC-Q200 automotive qualified and maintains all other electrical parameters. This substitution is suitable for designs where thermal performance improvement is beneficial without circuit redesign.

Automotive Qualification Consideration:

AC0402FR-074K3L, CRCW04024K30FKED, RMCF0402FT4K30, and ERJ-2RKF4301X carry AEC-Q200 automotive qualification. These parts are appropriate for applications requiring automotive-grade component reliability, even if the original design does not mandate this certification.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-4301GLF be used as a direct replacement for RC1005F432CS?

A: Yes. CR0402-FX-4301GLF meets all electrical and mechanical specifications: 4.3 kOhms ±1%, 0.063W power rating, 0402 package, ±100 ppm/°C temperature coefficient, -55°C to 155°C operating range, ROHS3 compliance, and MSL Level 1. The part is supplied in Tape & Reel format matching the original packaging.

Q: What is the difference between the direct equivalents and ERJ-2RKF4301X?

A: ERJ-2RKF4301X has a higher power rating of 0.1W (1/10W) versus 0.063W (1/16W) for the direct equivalents. All other parameters remain identical. The upgrade provides additional thermal headroom for applications operating near the power dissipation limit. ERJ-2RKF4301X also includes AEC-Q200 automotive qualification.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) affects handling, storage, and assembly processes but does not impact electrical characteristics. AC0402FR-074K3L in Cut Tape format is electrically identical to Tape & Reel packaged alternatives.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory status of RC1005F432CS.

Q: Which substitute part has the highest inventory availability?

A: RC0402FR-074K3L (YAGEO) shows 328,169 pieces in stock, representing the highest available inventory among all listed substitutes.

Q: Can ERJ-2RKF4301X be used in applications designed for 0.063W power rating?

A: Yes. ERJ-2RKF4301X with 0.1W rating is suitable for any application designed for 0.063W or lower power dissipation. The higher rating provides additional safety margin without affecting circuit operation.

Q: What is the significance of AEC-Q200 qualification on certain substitute parts?

A: AEC-Q200 is an automotive industry qualification standard ensuring component reliability under automotive operating conditions. Parts carrying this certification (AC0402FR-074K3L, CRCW04024K30FKED, RMCF0402FT4K30, ERJ-2RKF4301X) are suitable for automotive applications and applications requiring equivalent reliability standards.

Q: Are there any dimensional differences between substitute parts?

A: All parts use 0402 (1005 Metric) package with identical length and width (0.039" L x 0.020" W / 1.00mm x 0.50mm). Height variation is minimal: most parts have 0.016" (0.40mm) maximum seated height, while AC0402FR-074K3L specifies 0.015" (0.37mm). This negligible difference does not affect PCB assembly compatibility.