Equivalent & Substitute Parts for RC1005F38R3CS

Part Overview

The RC1005F38R3CS is a 38.3 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format with 1/16W power rating. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RC1005F38R3CS

Samsung Electro-MechanicsIn Stock: 1354RC1005F38R3CS Datasheet

Current PartRFQ

RC0402FR-0738R3L

YAGEOIn Stock: 308865RC0402FR-0738R3L Datasheet

DirectRFQ

ERJ-2RKF38R3X

Panasonic Electronic ComponentsIn Stock: 5140ERJ-2RKF38R3X Datasheet

UpgradeRFQ

CRCW040238R3FKED

Vishay DaleIn Stock: 17578CRCW040238R3FKED Datasheet

SimilarRFQ

RMCF0402FT38R3

Stackpole Electronics IncIn Stock: 7523RMCF0402FT38R3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for RC1005F38R3CS are classified based on strict alignment of the following critical parameters:

Electrical Equivalence Criteria:

• Resistance value: 38.3 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)

Mechanical Equivalence Criteria:

• Package / Case: 0402 (1005 Metric) (exact match required)
• Size / Dimension: 0.039" L x 0.020" W (1.00mm x 0.50mm) (exact match required)
• Height - Seated (Max): 0.016" (0.40mm) (exact match required)
• Number of Terminations: 2 (exact match required)

Compliance & Environmental Criteria:

• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)
• REACH Status: REACH Unaffected (exact match required)

Composition & Features:

• Composition: Thick Film (exact match required)

Substitute parts are grouped into categories based on power rating alignment and additional certifications. Direct substitutes maintain identical power ratings (0.063W, 1/16W). Upgrade substitutes provide higher power ratings (0.1W, 1/10W) while maintaining all other electrical and mechanical specifications. Similar substitutes include automotive AEC-Q200 certification in addition to base specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

RC0402FR-0738R3L (YAGEO) is a direct substitute for RC1005F38R3CS. Both components share identical electrical specifications (38.3 Ohms ±1%, 0.063W power rating, ±100ppm/°C temperature coefficient), mechanical dimensions (0402 package, 1.00mm x 0.50mm), and compliance certifications (ROHS3 Compliant, MSL 1, REACH Unaffected). Both are Active product status with moisture-resistant thick film composition. Selection between these two components is based on availability, packaging format (Cut Tape vs. Tape & Reel), and supply chain requirements.

Upgrade Substitute (Higher Power Rating):

ERJ-2RKF38R3X (Panasonic Electronic Components) provides an upgrade path with increased power rating of 0.1W (1/10W) compared to the original 0.063W (1/16W). All other electrical parameters (38.3 Ohms ±1%, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range) and mechanical specifications (0402 package, 1.00mm x 0.50mm dimensions) remain identical. This component includes Automotive AEC-Q200 certification and is Active product status. The higher power rating provides additional thermal margin in applications where power dissipation is a design consideration.

Similar Substitutes (Automotive Certified):

CRCW040238R3FKED (Vishay Dale) and RMCF0402FT38R3 (Stackpole Electronics Inc) are similar substitutes that maintain identical electrical and mechanical specifications to RC1005F38R3CS while adding Automotive AEC-Q200 certification. Both components feature 38.3 Ohms ±1%, 0.063W power rating, 0402 package, and full compliance certifications. Selection of these components is appropriate for applications requiring automotive-grade reliability qualification.

All substitute parts are Active product status and maintain full RoHS3 compliance and REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-0738L (YAGEO) be used as a direct replacement for RC1005F38R3CS (Samsung)?

A: Yes. RC0402FR-0738R3L is a direct substitute. Both components have identical resistance (38.3 Ohms), tolerance (±1%), power rating (0.063W), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), package format (0402), physical dimensions (1.00mm x 0.50mm), and compliance certifications (ROHS3, MSL 1, REACH Unaffected). The primary difference is packaging format: RC1005F38R3CS is supplied in Cut Tape, while RC0402FR-0738R3L is supplied in Tape & Reel.

Q: What is the difference between the original part and ERJ-2RKF38R3X (Panasonic)?

A: ERJ-2RKF38R3X differs in power rating only. It provides 0.1W (1/10W) compared to the original 0.063W (1/16W). All electrical parameters (38.3 Ohms ±1%, ±100ppm/°C) and mechanical specifications (0402 package, 1.00mm x 0.50mm) are identical. ERJ-2RKF38R3X includes Automotive AEC-Q200 certification, which the original part does not specify.

Q: Are CRCW040238R3FKED and RMCF0402FT38R3 suitable for non-automotive applications?

A: Yes. Both CRCW040238R3FKED (Vishay Dale) and RMCF0402FT38R3 (Stackpole Electronics Inc) are suitable for any application requiring 38.3 Ohm ±1% 0402 resistors. The Automotive AEC-Q200 certification indicates these components meet automotive reliability standards but does not restrict their use in non-automotive circuits. They maintain identical electrical and mechanical specifications to RC1005F38R3CS.

Q: Can these substitute parts be used interchangeably in PCB assembly?

A: Yes, all substitute parts are mechanically and electrically interchangeable with RC1005F38R3CS. All components use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and 2 terminations. PCB footprints, reflow profiles, and assembly processes remain unchanged. Packaging format differences (Cut Tape vs. Tape & Reel) affect only the supply and handling method, not the component itself.

Q: What compliance certifications do all substitute parts share?

A: All substitute parts (RC0402FR-0738R3L, ERJ-2RKF38R3X, CRCW040238R3FKED, RMCF0402FT38R3) are ROHS3 Compliant, have MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status. These certifications match the original RC1005F38R3CS component.

Q: Is there a performance difference between thick film resistors from different manufacturers?

A: All substitute parts use thick film composition with identical electrical specifications (38.3 Ohms ±1%, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range). Performance differences between manufacturers are not specified in the provided parameters. Component selection should be based on availability, compliance requirements, and supply chain considerations.

Q: Which substitute part should be selected for cost optimization?

A: Cost optimization decisions are based on current inventory levels and supply availability. RC0402FR-0738R3L (YAGEO) has the highest inventory (308,817 Pcs), followed by CRCW040238R3FKED (Vishay Dale, 17,496 Pcs), RMCF0402FT38R3 (Stackpole, 7,443 Pcs), and ERJ-2RKF38R3X (Panasonic, 5,100 Pcs). Higher inventory typically correlates with better pricing and shorter lead times.