RC2012F1243CS 124 kOhm 1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F1243CS is a 124 kOhm thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component operates at 0.125W (1/8W) power rating with ±1% tolerance and moisture-resistant construction. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and packaging requirements for direct circuit board integration.

Substiute Parts

RC2012F1243CS

Samsung Electro-MechanicsIn Stock: 775RC2012F1243CS Datasheet

Current PartRFQ

RC0805FR-07124KL

YAGEOIn Stock: 106430RC0805FR-07124KL Datasheet

DirectRFQ

CRCW0805124KFKEA

Vishay DaleIn Stock: 8928CRCW0805124KFKEA Datasheet

SimilarRFQ

ERJ-6ENF1243V

Panasonic Electronic ComponentsIn Stock: 77630ERJ-6ENF1243V Datasheet

SimilarRFQ

RMCF0805FT124K

Stackpole Electronics IncIn Stock: 34941RMCF0805FT124K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F1243CS are qualified based on the following critical parameters:

Electrical Equivalence: Resistance value of 124 kOhms, tolerance of ±1%, and power rating of 0.125W (1/8W) must match exactly.

Mechanical Compatibility: Package format 0805 (2012 Metric) with identical footprint dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) ensures direct board-level substitution.

Environmental Performance: Temperature coefficient of ±100ppm/°C and operating temperature range of -55°C ~ 155°C must be maintained.

Regulatory Compliance: ROHS3 compliance and MSL 1 rating are required for equivalent substitution.

Composition: Thick film construction is the standard for this category.

All identified substitute parts meet these criteria and are classified as direct equivalents or functionally compatible alternatives within the same electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain electrical and mechanical equivalence to the RC2012F1243CS. Selection among these alternatives depends on specific application requirements and supply chain considerations:

RC0805FR-07124KL (YAGEO): Direct electrical equivalent with identical specifications. Suitable for general industrial and consumer applications requiring standard moisture-resistant thick film construction.

CRCW0805124KFKEA (Vishay Dale): Includes AEC-Q200 automotive qualification. Recommended for automotive applications or systems requiring automotive-grade component reliability. Lowest seated height at 0.020" (0.50mm).

ERJ-6ENF1243V (Panasonic): Includes AEC-Q200 automotive qualification. Suitable for automotive and industrial applications. Highest seated height at 0.028" (0.70mm).

RMCF0805FT124K (Stackpole Electronics Inc): Includes AEC-Q200 automotive qualification. Recommended for automotive applications. Seated height of 0.026" (0.65mm) matches the original part specification.

All parts maintain ROHS3 compliance, unlimited MSL rating, and Active product status. Selection should account for board layout constraints related to component height and specific application certifications required.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-07124KL replace RC2012F1243CS in any application?

A: RC0805FR-07124KL is electrically and mechanically equivalent to RC2012F1243CS. Both share identical resistance, tolerance, power rating, package format, temperature coefficient, and operating temperature range. Substitution is valid for applications not requiring automotive qualification.

Q: What is the difference between the automotive-rated parts and the standard parts?

A: CRCW0805124KFKEA, ERJ-6ENF1243V, and RMCF0805FT124K include AEC-Q200 automotive qualification. RC0805FR-07124KL and RC2012F1243CS do not specify automotive ratings. Automotive-rated parts are required for automotive applications; standard parts are suitable for industrial and consumer electronics.

Q: Are there height differences between substitute parts?

A: Yes. Seated heights vary: CRCW0805124KFKEA (0.020"), RC0805FR-07124KL (0.024"), RMCF0805FT124K (0.026"), RC2012F1243CS (0.026"), and ERJ-6ENF1243V (0.028"). All heights remain within typical 0805 package specifications. Verify board clearance requirements before selection.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All parts listed maintain MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture baking requirements.

Q: Is the 0805 package footprint identical across all substitute parts?

A: Yes. All parts use the 0805 (2012 Metric) package with identical footprint dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). Direct board-level substitution is supported without PCB redesign.

Q: What compliance certifications apply to all substitute parts?

A: All parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification. HTSUS code 8533.21.0030 applies uniformly across all parts.