RCS2012F4532CS Equivalent & Substitute Parts

Part Overview

The RCS2012F4532CS is a 45.3 kOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant properties, with an operating temperature range of -55°C to 155°C. The part is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across different manufacturers while preserving functional performance in circuit applications.

Key Parameters

Parameter	Value
Resistance	45.3 kOhms
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 to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RCS2012F4532CS is valid when the following parameters are maintained:

Resistance value: 45.3 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Number of terminations: 2
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these core electrical and mechanical requirements. Variations in physical height and packaging format (Tape & Reel versus Cut Tape) do not affect functional substitution when circuit board layout accommodates the specified 0805 package dimensions.

Parameter Comparison

Parameter	RCS2012F4532CS (Samsung)	CRCW080545K3FKEA (Vishay Dale)	ERJ-6ENF4532V (Panasonic)	RC0805FR-0745K3L (YAGEO)	RMCF0805FT45K3 (Stackpole)
Resistance	45.3 kOhms	45.3 kOhms	45.3 kOhms	45.3 kOhms	45.3 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)	0.026" (0.65mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts listed are Active in product status and ROHS3 compliant, meeting regulatory requirements equivalent to the RCS2012F4532CS. Selection among these alternatives depends on application-specific requirements:

CRCW080545K3FKEA (Vishay Dale) carries AEC-Q200 automotive qualification and features the lowest maximum seated height at 0.020" (0.50mm), suitable for space-constrained applications requiring automotive-grade reliability.

ERJ-6ENF4532V (Panasonic Electronic Components) provides AEC-Q200 automotive qualification with the highest inventory availability at 29,216 pieces and is supplied in Cut Tape & Digi-Reel® packaging format.

RC0805FR-0745K3L (YAGEO) offers the largest inventory stock at 156,650 pieces with moisture-resistant properties and standard Tape & Reel packaging, providing broad availability for high-volume applications.

RMCF0805FT45K3 (Stackpole Electronics Inc) combines AEC-Q200 automotive qualification with the highest inventory level at 312,483 pieces and maintains physical dimensions closely aligned with the original part.

Frequently Asked Questions (FAQ)

Q: Can CRCW080545K3FKEA replace RCS2012F4532CS in any circuit?

A: Yes. Both parts share identical electrical specifications (45.3 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C) and the same 0805 package. The lower seated height of CRCW080545K3FKEA (0.020" versus 0.026") is compatible with standard 0805 footprints.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on continuous tape wound on reels for automated pick-and-place assembly. Cut Tape & Digi-Reel® supplies components on tape segments cut to specified lengths. Both formats contain identical components; packaging format affects handling and assembly processes only.

Q: Are automotive-qualified parts (AEC-Q200) required for this application?

A: AEC-Q200 qualification is not inherent to the RCS2012F4532CS. CRCW080545K3FKEA, ERJ-6ENF4532V, and RMCF0805FT45K3 carry this qualification. Selection depends on application requirements; automotive qualification provides additional reliability screening but is not necessary for non-automotive circuits.

Q: Does the height difference between substitute parts affect PCB assembly?

A: No. All parts conform to the 0805 (2012 Metric) package specification with maximum seated heights ranging from 0.020" to 0.028". Standard 0805 footprints accommodate this variation without design modification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of RCS2012F4532CS.

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