RC2012F4221CS 4.22kΩ 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F4221CS is a 4.22 kOhms ±1% 0.125W (1/8W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are maintained across different manufacturers while preserving functional performance in circuit applications.

Substiute Parts

RC2012F4221CS

Samsung Electro-MechanicsIn Stock: 957RC2012F4221CS Datasheet

Current PartRFQ

RC0805FR-074K22L

YAGEOIn Stock: 169747RC0805FR-074K22L Datasheet

DirectRFQ

CRCW08054K22FKEA

Vishay DaleIn Stock: 20320CRCW08054K22FKEA Datasheet

SimilarRFQ

ERJ-6ENF4221V

Panasonic Electronic ComponentsIn Stock: 70335ERJ-6ENF4221V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F4221CS are qualified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match):

• Resistance value: 4.22 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

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

Environmental & Compliance Parameters (Must Match):

• Composition: Thick Film
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

All identified substitute parts maintain these core parameters. Additional features such as automotive AEC-Q200 qualification represent enhanced specifications that do not disqualify a part from substitution but indicate expanded application scope.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed maintain Active product status and full compliance with ROHS3 and REACH requirements. Selection between the RC2012F4221CS and its substitutes is determined by application requirements and supply chain considerations:

RC0805FR-074K22L (YAGEO): Direct substitute with identical electrical and environmental specifications. Seated height of 0.024" (0.60mm) is within acceptable tolerance for standard PCB assembly. Suitable for general industrial applications requiring moisture-resistant thick film resistors.

CRCW08054K22FKEA (Vishay Dale): Qualified substitute with automotive AEC-Q200 certification. Lowest seated height at 0.020" (0.50mm) provides advantage in space-constrained designs. Appropriate for automotive and high-reliability applications where AEC-Q200 qualification is specified or preferred.

ERJ-6ENF4221V (Panasonic): Qualified substitute with automotive AEC-Q200 certification. Seated height of 0.028" (0.70mm) represents maximum height among substitutes. Suitable for automotive and industrial applications requiring AEC-Q200 qualified components.

All substitutes are available in Tape & Reel (TR) packaging and maintain identical electrical performance across the specified operating temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-074K22L replace RC2012F4221CS in any application?

A: Yes. RC0805FR-074K22L maintains all critical electrical parameters (4.22kΩ ±1%, 0.125W, ±100ppm/°C) and environmental specifications (0805 package, MSL 1, ROHS3 compliant). The 0.002" (0.06mm) difference in seated height is within standard PCB assembly tolerances and does not affect functionality.

Q: What is the difference between the standard and AEC-Q200 versions?

A: CRCW08054K22FKEA and ERJ-6ENF4221V include automotive AEC-Q200 qualification, indicating compliance with automotive reliability standards. RC2012F4221CS and RC0805FR-074K22L do not carry this certification. AEC-Q200 versions are suitable for automotive applications; standard versions are appropriate for general industrial use.

Q: Are all substitutes compatible with existing PCB designs?

A: All substitutes use identical 0805 (2012 Metric) package dimensions (0.079" L x 0.049" W). Seated heights vary between 0.020" and 0.028", all within standard PCB assembly specifications. No PCB redesign is required for substitution.

Q: What is MSL 1 (Unlimited) rating?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All four parts carry this rating, eliminating moisture sensitivity concerns in supply chain management.

Q: Can these parts be used interchangeably in production?

A: Yes, provided the application does not specifically require AEC-Q200 certification. All parts meet identical electrical specifications, package requirements, and compliance standards. Substitution is valid for component sourcing flexibility and supply chain continuity.