RC2012F45R3CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F45R3CS is a 45.3 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) surface mount package. This component is classified as Active product status and is RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct interchangeability in circuit applications.

Substiute Parts

RC2012F45R3CS

Samsung Electro-MechanicsIn Stock: 776RC2012F45R3CS Datasheet

Current PartRFQ

RC0805FR-0745R3L

YAGEOIn Stock: 9462RC0805FR-0745R3L Datasheet

DirectRFQ

CRCW080545R3FKEA

Vishay DaleIn Stock: 23953CRCW080545R3FKEA Datasheet

SimilarRFQ

ERJ-6ENF45R3V

Panasonic Electronic ComponentsIn Stock: 33230ERJ-6ENF45R3V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F45R3CS are qualified based on the following criteria:

Electrical Parameters (Critical for Substitution):

• Resistance value: 45.3 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical for Substitution):

• Package type: 0805 (2012 Metric)
• Number of terminations: 2
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)

Compliance & Environmental Parameters:

• RoHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• Thick film composition

All identified substitute parts meet these criteria. Variations in seated height (0.020" to 0.028") remain within acceptable PCB assembly tolerances for 0805 packages and do not affect electrical performance or mechanical fit.

Parameter Comparison

Engineering Selection Recommendations

RC0805FR-0745R3L (YAGEO): Direct equivalent with identical electrical specifications and moisture-resistant thick film composition. Seated height of 0.024" (0.60mm) is within standard PCB assembly tolerances. Suitable for general industrial and consumer applications requiring moisture resistance.

CRCW080545R3FKEA (Vishay Dale): Qualified substitute with automotive AEC-Q200 rating. Lowest seated height at 0.020" (0.50mm) provides additional clearance margin. Recommended for automotive and high-reliability applications where AEC-Q200 qualification is required or preferred.

ERJ-6ENF45R3V (Panasonic Electronic Components): Qualified substitute with automotive AEC-Q200 rating. Highest seated height at 0.028" (0.70mm) remains within acceptable assembly tolerances. Recommended for automotive and high-reliability applications where AEC-Q200 qualification is required or preferred.

All substitute parts maintain Active product status and full RoHS3 compliance, ensuring long-term availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0745R3L be used as a direct replacement for RC2012F45R3CS?

A: Yes. Both parts share identical electrical specifications (45.3 Ohms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C), identical package dimensions (0805/2012 Metric), and identical compliance ratings (RoHS3, MSL 1). The seated height difference of 0.002" (0.06mm) is within standard PCB assembly tolerances.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?

A: The RC2012F45R3CS and RC0805FR-0745R3L feature moisture-resistant thick film composition for general applications. The CRCW080545R3FKEA and ERJ-6ENF45R3V include automotive AEC-Q200 qualification, indicating compliance with automotive reliability and environmental stress testing standards. AEC-Q200 parts are suitable for both automotive and high-reliability industrial applications.

Q: Are there any PCB layout considerations when substituting these parts?

A: All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W). Seated height variations (0.020" to 0.028") do not affect PCB layout or assembly. Standard 0805 footprints accommodate all listed parts without modification.

Q: Which substitute part should be selected for automotive applications?

A: CRCW080545R3FKEA (Vishay Dale) or ERJ-6ENF45R3V (Panasonic Electronic Components) are recommended for automotive applications due to AEC-Q200 qualification. Both parts meet automotive reliability standards and environmental stress testing requirements.

Q: Is the RC2012F45R3CS still in active production?

A: Yes, the RC2012F45R3CS maintains Active product status. All listed substitute parts also maintain Active product status, ensuring continued availability and supply chain stability.