RC2012J183CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012J183CS is an 18 kOhms ±5% 0.125W 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 construction and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general-purpose applications requiring standard tolerance resistive elements. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance ratings.

Key Parameters

Parameter	Specification
Resistance Value	18 kOhms
Tolerance	±5%
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
Moisture Resistance	Yes
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for RC2012J183CS are categorized based on the following substitution criteria:

Direct Equivalent (Same Tolerance ±5%):

RC0805JR-0718KL (YAGEO) maintains identical electrical specifications with ±5% tolerance, matching the original part's precision class.

Upgrade Substitutes (Enhanced Tolerance ±1%):

AC0805FR-0718KL, CR0805-FX-1802ELF, CRG0805F18K, ERJ-6ENF1802V, KTR10EZPF1802, RC0805FR-0718KL, and RMCF0805FT18K0 provide tighter tolerance (±1%) while maintaining all other electrical and mechanical parameters. These parts are suitable for applications requiring improved accuracy.

Similar Parts (Same Tolerance ±5%, Additional Features):

AC0805JR-0718KL and CRCW080518K0FKEA maintain ±5% tolerance with automotive AEC-Q200 certification, adding environmental qualification for automotive applications.

All substitute parts share the following critical parameters with the main part:

Resistance value: 18 kOhms
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature: -55°C to 155°C
RoHS3 compliance
MSL 1 rating

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	RoHS	MSL
RC2012J183CS	Samsung Electro-Mechanics	18 kΩ	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1
RC0805JR-0718KL	YAGEO	18 kΩ	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1
AC0805FR-0718KL	YAGEO	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CR0805-FX-1802ELF	Bourns Inc.	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1
CRG0805F18K	TE Connectivity Passive Product	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	None specified	ROHS3	1
ERJ-6ENF1802V	Panasonic Electronic Components	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1
KTR10EZPF1802	Rohm Semiconductor	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, High Voltage	ROHS3	1
RC0805FR-0718KL	YAGEO	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1
RMCF0805FT18K0	Stackpole Electronics Inc	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1
AC0805JR-0718KL	YAGEO	18 kΩ	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CRCW080518K0FKEA	Vishay Dale	18 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): RC0805JR-0718KL (YAGEO) is the direct equivalent substitute, maintaining identical ±5% tolerance and all electrical specifications. This part is suitable for applications where the original tolerance specification is required and no design modification is acceptable.

For Improved Accuracy Applications: Upgrade substitutes with ±1% tolerance (AC0805FR-0718KL, CR0805-FX-1802ELF, CRG0805F18K, ERJ-6ENF1802V, KTR10EZPF1802, RC0805FR-0718KL, RMCF0805FT18K0) are applicable when circuit design permits tighter tolerance specifications. All upgrade parts maintain identical power rating, package dimensions, and operating temperature range.

For Automotive Applications: Parts with AEC-Q200 certification (AC0805FR-0718KL, ERJ-6ENF1802V, KTR10EZPF1802, RMCF0805FT18K0, AC0805JR-0718KL, CRCW080518K0FKEA) are qualified for automotive environments. KTR10EZPF1802 includes high voltage capability in addition to automotive qualification.

Compliance Verification: All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) rating, ensuring compatibility with standard manufacturing and storage conditions. No additional environmental qualification is required beyond the original part specification.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-0718KL replace RC2012J183CS directly without circuit redesign?

A: Yes. RC0805JR-0718KL is a direct equivalent with identical resistance value (18 kOhms), tolerance (±5%), power rating (0.125W), package (0805), and operating temperature range (-55°C to 155°C). No circuit redesign is required.

Q: What is the difference between direct equivalent and upgrade substitutes?

A: Direct equivalent (RC0805JR-0718KL) maintains ±5% tolerance matching the original part. Upgrade substitutes provide ±1% tolerance, offering improved accuracy for applications requiring tighter resistance specifications. All other electrical and mechanical parameters remain identical.

Q: Are automotive-qualified parts (AEC-Q200) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts exceed standard reliability requirements and are suitable for general-purpose applications. AEC-Q200 certification indicates enhanced environmental stress screening and reliability testing, making these parts acceptable for any application accepting the original part.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts maintain this rating, ensuring compatibility with standard manufacturing processes.

Q: Can parts with different packaging formats (Tape & Reel vs. Cut Tape) be used interchangeably?

A: Yes. Packaging format (Tape & Reel or Cut Tape) affects supply and handling logistics but does not impact electrical or mechanical performance. The component itself is identical regardless of packaging format.

Q: Is KTR10EZPF1802 suitable for standard applications, or is high voltage capability required?

A: KTR10EZPF1802 is suitable for standard applications. High voltage capability is an additional feature that does not restrict use in standard circuits. This part is applicable when high voltage performance is beneficial or required.

Q: What parameters must remain constant for substitution compatibility?

A: Critical parameters for substitution are: resistance value (18 kOhms), power rating (0.125W), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Tolerance may be equal or tighter; additional features (automotive qualification, moisture resistance) do not prevent substitution.

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