RC1005F30R1CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F30R1CS is a 30.1 Ohm ±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 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, dimensions, termination count), and environmental operating parameters. Alternative sources provide design flexibility, supply chain redundancy, and access to specialized variants with enhanced ratings or certifications.

Substiute Parts

RC1005F30R1CS

Samsung Electro-MechanicsIn Stock: 888RC1005F30R1CS Datasheet

Current PartRFQ

CR0402-FX-30R1GLF

Bourns Inc.In Stock: 28219CR0402-FX-30R1GLF Datasheet

DirectRFQ

RC0402FR-0730R1L

YAGEOIn Stock: 418458RC0402FR-0730R1L Datasheet

DirectRFQ

ERJ-2RKF30R1X

Panasonic Electronic ComponentsIn Stock: 251352ERJ-2RKF30R1X Datasheet

UpgradeRFQ

AC0402FR-0730R1L

YAGEOIn Stock: 20522AC0402FR-0730R1L Datasheet

SimilarRFQ

CRCW040230R1FKED

Vishay DaleIn Stock: 35355CRCW040230R1FKED Datasheet

SimilarRFQ

CRCW040230R1FKTD

Vishay DaleIn Stock: 18186CRCW040230R1FKTD Datasheet

SimilarRFQ

RMCF0402FT30R1

Stackpole Electronics IncIn Stock: 60380RMCF0402FT30R1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Electrical Equivalence: Resistance value (30.1 Ohms), tolerance (±1%), and power rating (0.063W minimum) must match or exceed the original specification.

Mechanical Compatibility: Package designation (0402/1005 Metric), physical dimensions (0.039" L × 0.020" W / 1.00mm × 0.50mm), seated height (≤0.016" / 0.40mm), and termination count (2) must be identical.

Environmental Performance: Operating temperature range (-55°C to 155°C) and temperature coefficient (±100ppm/°C) must be maintained.

Regulatory Compliance: RoHS3 compliance and MSL 1 rating are baseline requirements for direct substitution.

Substitute parts are categorized as follows:

Direct Equivalents: Identical specifications across all electrical, mechanical, and environmental parameters with matching RoHS3 compliance.

Upgrade Variants: Higher power rating (0.1W vs. 0.063W) or enhanced certifications (AEC-Q200 automotive qualification) while maintaining all other specifications.

Similar Alternatives: Matching core specifications with additional certifications or minor dimensional variations within tolerance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Identical Specifications):

CR0402-FX-30R1GLF (Bourns Inc.) and RC0402FR-0730R1L (YAGEO) are direct functional equivalents to the RC1005F30R1CS. Both maintain identical electrical parameters, package dimensions, and ROHS3 compliance. RC0402FR-0730R1L includes moisture-resistant construction matching the original part. Selection between these options depends on supply availability and procurement lead times.

For Upgraded Performance:

ERJ-2RKF30R1X (Panasonic Electronic Components) provides a higher power rating (0.1W vs. 0.063W) while maintaining all other specifications. This variant includes AEC-Q200 automotive qualification, suitable for applications requiring enhanced reliability or automotive-grade components. The increased power rating provides thermal margin in power-dissipation-sensitive circuits.

For Automotive Applications:

AC0402FR-0730R1L (YAGEO), CRCW040230R1FKED (Vishay Dale), and RMCF0402FT30R1 (Stackpole Electronics Inc) are qualified to AEC-Q200 automotive standards with ROHS3 compliance. These parts are appropriate for automotive, industrial, and mission-critical applications requiring enhanced qualification documentation.

Compliance Consideration:

CRCW040230R1FKTD (Vishay Dale) is RoHS non-compliant and REACH-affected. This part is not suitable for applications requiring RoHS3 compliance or EU market distribution.

Frequently Asked Questions (FAQ)

Q: Can ERJ-2RKF30R1X be used as a direct replacement for RC1005F30R1CS?

A: Yes. ERJ-2RKF30R1X is electrically and mechanically compatible. The higher power rating (0.1W vs. 0.063W) is a non-limiting upgrade that provides additional thermal capacity. All other parameters—resistance, tolerance, package, temperature range, and temperature coefficient—are identical.

Q: What is the difference between moisture-resistant and non-moisture-resistant variants?

A: Moisture-resistant construction (RC1005F30R1CS, RC0402FR-0730R1L, AC0402FR-0730R1L) provides enhanced protection against humidity ingress and is specified for applications with elevated moisture exposure. Non-moisture-resistant variants (CR0402-FX-30R1GLF) are suitable for controlled-environment applications. Selection depends on end-use environmental conditions.

Q: Are AEC-Q200 qualified parts interchangeable with non-qualified parts?

A: AEC-Q200 qualified parts (ERJ-2RKF30R1X, AC0402FR-0730R1L, CRCW040230R1FKED, RMCF0402FT30R1) meet automotive reliability standards and are functionally interchangeable with non-qualified equivalents. However, AEC-Q200 qualification is required for automotive applications and should not be substituted with non-qualified parts in such designs.

Q: Why is CRCW040230R1FKTD listed if it is RoHS non-compliant?

A: CRCW040230R1FKTD is included for reference and historical supply chain documentation. This part is not recommended for new designs or applications requiring RoHS3 compliance. Use CRCW040230R1FKED (ROHS3 compliant variant) instead.

Q: Do all substitute parts have identical physical dimensions?

A: All listed parts conform to the 0402 (1005 Metric) package standard with dimensions of 0.039" L × 0.020" W (1.00mm × 0.50mm). Seated height specifications are ≤0.016" (0.40mm) for all parts except AC0402FR-0730R1L, which specifies 0.015" (0.37mm) maximum. This minor variation is within PCB assembly tolerance and does not affect interchangeability.

Q: What inventory levels are available for each substitute?

A: Current stock levels are: CR0402-FX-30R1GLF (28,116 pcs), RC0402FR-0730R1L (418,438 pcs), ERJ-2RKF30R1X (251,250 pcs), AC0402FR-0730R1L (20,430 pcs), CRCW040230R1FKED (35,269 pcs), CRCW040230R1FKTD (18,104 pcs), RMCF0402FT30R1 (60,361 pcs). Inventory levels are subject to change; verify current availability with supplier before procurement.

Q: Are all parts packaged in Tape & Reel format?

A: Most substitute parts are supplied in Tape & Reel (TR) packaging. CRCW040230R1FKED is available in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging format requirements for automated assembly processes before selection.