RCS2012F511CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F511CS is a 510 Ohm ±1% 1/8W (0.125W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the core parameters: resistance value, tolerance, power rating, package size, composition type, and operating temperature range. This reference provides engineering-grade alternatives for procurement flexibility and supply chain continuity.

Key Parameters

Parameter	RCS2012F511CS Specification
Resistance	510 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F511CS are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

Resistance value: 510 Ohms
Tolerance: ±1%
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature: -55°C ~ 155°C
Number of Terminations: 2
RoHS Status: ROHS3 Compliant
MSL: 1 (Unlimited)

Power Rating Grouping: Substitutes are divided into two categories based on power rating:

Category A - 1/8W (0.125W) Equivalents: Direct functional replacements with identical power dissipation capability. These parts maintain the same thermal and electrical performance envelope as the main part.

Category B - 1/2W (0.5W) Upgrades: Higher power rating variants in the same package. These provide enhanced pulse withstanding and thermal margin while maintaining all other electrical specifications and package compatibility.

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 rating, and identical operating temperature ranges. Packaging format variations (Tape & Reel vs. Cut Tape) do not affect electrical or mechanical substitutability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Op. Temp (°C)	Height Max (mm)	Features	RoHS	MSL
RCS2012F511CS	Samsung Electro-Mechanics	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.66	Anti-Sulfur, Moisture Resistant	ROHS3	1
AC0805FR-07510RL	YAGEO	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.60	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CRCW0805510RFKEA	Vishay Dale	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.50	Automotive AEC-Q200	ROHS3	1
CRCW0805510RFKEAHP	Vishay Dale	510 Ω	±1%	0.5	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.50	Automotive AEC-Q200, Pulse Withstanding	ROHS3	1
ERJ-6ENF5100V	Panasonic Electronic Components	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.70	Automotive AEC-Q200	ROHS3	1
RC0805FR-07510RL	YAGEO	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.60	Moisture Resistant	ROHS3	1
RCS0805510RFKEA	Vishay Dale	510 Ω	±1%	0.5	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.50	Automotive AEC-Q200, Pulse Withstanding	ROHS3	1
RMCF0805FT510R	Stackpole Electronics Inc	510 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55 ~ 155	0.65	Automotive AEC-Q200	ROHS3	1

Engineering Selection Recommendations

Direct Substitutes (1/8W Category):

The following parts provide direct electrical and mechanical equivalence to RCS2012F511CS with identical 0.125W power rating:

RC0805FR-07510RL (YAGEO): Moisture-resistant thick film composition. Suitable for general industrial applications requiring equivalent performance to the main part.
AC0805FR-07510RL (YAGEO): Automotive AEC-Q200 qualified. Appropriate for automotive and high-reliability applications where automotive qualification is required.
ERJ-6ENF5100V (Panasonic Electronic Components): Automotive AEC-Q200 qualified. Largest inventory availability (161,876 pcs). Suitable for automotive and high-reliability applications.
RMCF0805FT510R (Stackpole Electronics Inc): Automotive AEC-Q200 qualified. Suitable for automotive and high-reliability applications.

Higher Power Variants (1/2W Category):

The following parts provide enhanced power rating (0.5W) while maintaining all other electrical specifications and 0805 package compatibility:

CRCW0805510RFKEAHP (Vishay Dale): Automotive AEC-Q200 qualified with pulse withstanding capability. Largest inventory availability (68,746 pcs). Suitable for applications requiring higher thermal margin and pulse tolerance.
RCS0805510RFKEA (Vishay Dale): Automotive AEC-Q200 qualified with pulse withstanding capability. Suitable for applications requiring higher thermal margin and pulse tolerance.

Compliance Status:

All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited) moisture sensitivity rating, and identical -55°C to 155°C operating temperature range. Selection between substitutes should be based on application requirements (automotive qualification, pulse withstanding capability) and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can I use a 1/2W (0.5W) rated substitute in place of the 1/8W (0.125W) main part?

A: Yes. The 1/2W variants (CRCW0805510RFKEAHP and RCS0805510RFKEA) are mechanically and electrically compatible. Higher power rating provides additional thermal margin and pulse withstanding capability. All other electrical parameters remain identical. Package dimensions and operating temperature range are unchanged.

Q: What is the difference between parts with and without AEC-Q200 qualification?

A: AEC-Q200 is an automotive industry qualification standard. Parts carrying this rating (AC0805FR-07510RL, CRCW0805510RFKEA, CRCW0805510RFKEAHP, ERJ-6ENF5100V, RCS0805510RFKEA, RMCF0805FT510R) have undergone additional testing and validation for automotive applications. Non-qualified parts (RC0805FR-07510RL, RCS2012F511CS) are suitable for general industrial applications.

Q: Are there packaging format differences between substitutes?

A: Yes. Some substitutes are supplied in Tape & Reel (TR) format while others use Cut Tape (CT) & Digi-Reel® format. These packaging differences do not affect electrical or mechanical compatibility. Selection should be based on assembly equipment requirements and procurement preferences.

Q: What does MSL Level 1 (Unlimited) mean?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life without special moisture control storage requirements. All listed parts carry this rating, ensuring consistent handling and storage procedures across all substitutes.

Q: Can I substitute based on resistance value and tolerance alone?

A: No. Substitution requires matching all core parameters: resistance (510 Ω), tolerance (±1%), power rating (0.125W or higher), package (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance status (ROHS3, MSL 1). Partial matching does not ensure functional equivalence.

Q: What is the significance of temperature coefficient ±100ppm/°C?

A: Temperature coefficient defines how resistance value changes with temperature. All listed parts maintain ±100ppm/°C, ensuring identical temperature stability and drift characteristics across the -55°C to 155°C operating range. This parameter must match for applications with strict tolerance requirements across temperature extremes.

Q: How do I select between multiple equivalent substitutes?

A: Selection criteria include: (1) Application requirements (automotive vs. industrial), (2) Certification needs (AEC-Q200 for automotive), (3) Power margin requirements (1/8W vs. 1/2W), (4) Supply chain availability, (5) Packaging format compatibility with assembly equipment, (6) Manufacturer preference or qualification status.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message