RC2012J821CS 820 Ohm 0805 SMD Resistor Equivalent & Substitute Parts

Part Overview

The RC2012J821CS is a 820 Ohm ±5% 0.125W (1/8W) 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 properties and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental operating parameters. Alternative sources become necessary for supply chain continuity, inventory availability, or application-specific requirements such as automotive qualification or enhanced tolerance specifications.

Key Parameters

Parameter	Value	Specification Basis
Resistance	820 Ohms	Core electrical specification
Tolerance	±5%	Defines acceptable resistance range
Power Rating	0.125W (1/8W)	Maximum dissipation capability
Package / Case	0805 (2012 Metric)	Physical form factor and PCB footprint
Composition	Thick Film	Technology type
Operating Temperature Range	-55°C to +155°C	Environmental operating limits
Temperature Coefficient	±100ppm/°C	Resistance stability over temperature
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling and storage requirements
RoHS Status	ROHS3 Compliant	Environmental compliance
Number of Terminations	2	Connection points

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on substitution compatibility:

Direct Substitutes (Equivalent Specifications): Parts that match all critical electrical and mechanical parameters of the main part. These maintain identical tolerance (±5%), power rating (0.125W), package (0805), and operating temperature range (-55°C to +155°C). Direct substitutes allow one-to-one replacement without circuit redesign.

Upgrade Substitutes (Enhanced Tolerance): Parts that maintain the same resistance value, power rating, and package but feature tighter tolerance (±1% instead of ±5%). These provide improved accuracy and are suitable for applications requiring higher precision. All upgrade substitutes retain the same operating temperature range and thick film composition.

Similar Substitutes (Variant Specifications): Parts that share the same resistance, power rating, and package but may include additional certifications (automotive AEC-Q200) or feature variations. These are compatible for applications where the additional qualification or feature set is beneficial or required.

Key Parameters Determining Substitution:

Resistance value: 820 Ohms (fixed)
Power rating: 0.125W (fixed)
Package: 0805 (2012 Metric) (fixed)
Tolerance: ±5% (direct), ±1% (upgrade)
Operating temperature: -55°C to +155°C (fixed)
Composition: Thick Film (fixed)
Terminations: 2 (fixed)

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Height Max (mm)	Features	Substitution Type
RC2012J821CS	Samsung Electro-Mechanics	820Ω	±5%	0.125	0805	±100	-55 to +155	0.65	Moisture Resistant	Main Part
RC0805JR-07820RL	YAGEO	820Ω	±5%	0.125	0805	±100	-55 to +155	0.60	Moisture Resistant	Direct
AC0805FR-07820RL	YAGEO	820Ω	±1%	0.125	0805	±100	-55 to +155	0.60	Automotive AEC-Q200, Moisture Resistant	Upgrade
CRG0805F820R	TE Connectivity Passive Product	820Ω	±1%	0.125	0805	±100	-55 to +155	0.65	Neohm Series	Upgrade
ERJ-6ENF8200V	Panasonic Electronic Components	820Ω	±1%	0.125	0805	±100	-55 to +155	0.70	Automotive AEC-Q200	Upgrade
KTR10EZPF8200	Rohm Semiconductor	820Ω	±1%	0.125	0805	±100	-55 to +155	0.65	Automotive AEC-Q200, High Voltage	Upgrade
RC0805FR-07820RL	YAGEO	820Ω	±1%	0.125	0805	±100	-55 to +155	0.60	Moisture Resistant	Upgrade
RMCF0805FT820R	Stackpole Electronics Inc	820Ω	±1%	0.125	0805	±100	-55 to +155	0.65	Automotive AEC-Q200	Upgrade
AC0805JR-07820RL	YAGEO	820Ω	±5%	0.125	0805	±100	-55 to +155	0.60	Automotive AEC-Q200, Moisture Resistant	Similar
CRCW0805820RFKEA	Vishay Dale	820Ω	±1%	0.125	0805	±100	-55 to +155	0.50	Automotive AEC-Q200	Similar
CRCW0805820RFKEAC	Vishay Dale	820Ω	±1%	0.125	0805	±100	-55 to +155	0.60	Standard	Similar

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification Required): Select RC0805JR-07820RL (YAGEO) when maintaining identical ±5% tolerance specification. This part provides equivalent electrical performance and moisture resistant properties matching the original RC2012J821CS specification. Inventory availability is 103,125 pieces.

For Precision Applications (Tighter Tolerance Required): Select from upgrade substitutes when circuit design requires ±1% tolerance:

RC0805FR-07820RL (YAGEO): Moisture resistant variant with 76,364 pieces in stock
CRCW0805820RFKEAC (Vishay Dale): Standard variant with 105,654 pieces in stock
RMCF0805FT820R (Stackpole Electronics): Automotive AEC-Q200 qualified with 100,229 pieces in stock

For Automotive Applications (AEC-Q200 Qualification Required): Select from parts bearing AEC-Q200 certification:

AC0805FR-07820RL (YAGEO): ±1% tolerance, 40,906 pieces
ERJ-6ENF8200V (Panasonic): ±1% tolerance, 92,354 pieces
KTR10EZPF8200 (Rohm): ±1% tolerance with high voltage features, 15,637 pieces
RMCF0805FT820R (Stackpole): ±1% tolerance, 100,229 pieces

For High Voltage Circuit Applications: Select KTR10EZPF8200 (Rohm Semiconductor) which includes high voltage feature designation alongside AEC-Q200 automotive qualification.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature range (-55°C to +155°C). Selection should be based on application requirements, supply chain availability, and any specific certifications mandated by end-use specifications.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-07820RL directly replace RC2012J821CS without any circuit changes?

A: Yes. RC0805JR-07820RL is a direct substitute matching all critical parameters: 820 Ohm resistance, ±5% tolerance, 0.125W power rating, 0805 package, -55°C to +155°C operating range, and thick film composition. Physical dimensions are compatible with identical PCB footprints.

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

A: Direct substitutes maintain identical tolerance (±5%). Upgrade substitutes feature tighter tolerance (±1%) while preserving all other electrical and mechanical specifications. Upgrade substitutes provide higher precision but may have different cost implications. Both are mechanically and electrically compatible.

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

A: Yes. AEC-Q200 qualification represents enhanced reliability testing and quality assurance. Parts meeting this standard are suitable for any application, including non-automotive circuits. The qualification does not restrict use to automotive applications only.

Q: Does package height variation affect PCB assembly compatibility?

A: Package height variations (0.50mm to 0.70mm maximum seated height) are within standard 0805 component tolerances and do not affect PCB assembly compatibility. All listed parts are compatible with standard 0805 footprints and reflow soldering processes.

Q: Can I use a ±1% tolerance part in a circuit designed for ±5% tolerance?

A: Yes. A ±1% tolerance part exceeds the ±5% specification and provides improved accuracy. This substitution is always acceptable from a circuit design perspective. The tighter tolerance ensures the actual resistance value remains closer to the nominal 820 Ohm specification.

Q: What does MSL 1 (Unlimited) moisture sensitivity level mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. These parts do not require dry-pack storage or baking before assembly, simplifying logistics and manufacturing processes.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions applicable to electronic components in regulated markets.

Q: Which substitute offers the best inventory availability?

A: CRCW0805820RFKEAC (Vishay Dale) provides the highest inventory with 105,654 pieces in stock, followed by RMCF0805FT820R (Stackpole) with 100,229 pieces and ERJ-6ENF8200V (Panasonic) with 92,354 pieces.

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