RCS2012F8450CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F8450CS is an 845 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and features anti-sulfur and moisture-resistant construction. The part maintains Active product status with 673 pieces currently in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Key Parameters

Parameter	Value
Resistance	845 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F8450CS are qualified based on the following criteria:

Electrical Equivalence: All substitute parts must match the resistance value of 845 Ohms with ±1% tolerance and identical 0.125W power rating.

Package Compatibility: All substitutes must use the 0805 (2012 Metric) package format with two terminations, ensuring direct PCB footprint compatibility.

Environmental Specifications: All substitutes must operate across the -55°C ~ 155°C temperature range with ±100ppm/°C temperature coefficient.

Regulatory Compliance: All substitutes must maintain ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status.

Composition: All substitutes utilize thick film construction technology.

The three identified substitutes meet these criteria while maintaining Active product status and commercial availability.

Parameter Comparison

Parameter	RCS2012F8450CS (Samsung)	CRCW0805845RFKEA (Vishay Dale)	ERJ-6ENF8450V (Panasonic)	RC0805FR-07845RL (YAGEO)
Resistance	845 Ohms	845 Ohms	845 Ohms	845 Ohms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Terminations	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)
Inventory Availability	673 Pcs	26667 Pcs	140184 Pcs	47242 Pcs

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the RCS2012F8450CS based on electrical and mechanical specifications. Selection among these alternatives should be based on:

Automotive Applications: The CRCW0805845RFKEA (Vishay Dale) and ERJ-6ENF8450V (Panasonic) both carry AEC-Q200 automotive qualification ratings, making them suitable for automotive-grade circuit designs.

General Industrial Applications: The RC0805FR-07845RL (YAGEO) is qualified for general industrial use with moisture-resistant construction matching the original part's environmental protection level.

Supply Chain Considerations: All substitutes maintain Active product status with commercial availability. The ERJ-6ENF8450V demonstrates the highest inventory level at 140,184 pieces, followed by RC0805FR-07845RL at 47,242 pieces and CRCW0805845RFKEA at 26,667 pieces.

Height Clearance: The CRCW0805845RFKEA offers the lowest seated height at 0.020" (0.50mm), which may be advantageous in space-constrained PCB layouts. The ERJ-6ENF8450V has the maximum seated height at 0.028" (0.70mm).

Frequently Asked Questions (FAQ)

Q: Can the CRCW0805845RFKEA replace the RCS2012F8450CS in any application?

A: The CRCW0805845RFKEA is electrically and mechanically equivalent. It shares identical resistance, tolerance, power rating, package format, temperature range, and compliance certifications. The primary difference is the addition of AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Q: What is the significance of the AEC-Q200 rating on the Vishay Dale and Panasonic substitutes?

A: AEC-Q200 is an automotive industry qualification standard. Parts bearing this rating have undergone additional reliability testing and qualification procedures. These parts are suitable for both automotive and general industrial applications.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: All substitute parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049") dimensions. Seated heights vary between 0.020" and 0.028", all within acceptable PCB assembly tolerances. Verify PCB clearance requirements for space-constrained designs.

Q: Do all substitutes meet the same environmental and compliance standards?

A: All four parts are ROHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity ratings, and maintain REACH Unaffected status. All operate across -55°C ~ 155°C with ±100ppm/°C temperature coefficient.

Q: Which substitute offers the best supply availability?

A: The ERJ-6ENF8450V (Panasonic) offers the highest inventory level at 140,184 pieces, providing the strongest supply chain position for high-volume procurement.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All parts share identical electrical specifications, package footprints, and compliance certifications. They are direct substitutes for PCB assembly purposes.

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