RC2012J221CS Equivalent & Substitute Parts

Part Overview

The RC2012J221CS is a 220 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation with a temperature coefficient of ±100ppm/°C and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and is currently in active production status with 1027 units in stock.

Equivalent and substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design specifications allow for tolerance or feature upgrades while maintaining functional compatibility.

Key Parameters

Parameter	Value
Resistance	220 Ohms
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 Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution of the RC2012J221CS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match Exactly):

Resistance value: 220 Ohms
Package / Case: 0805 (2012 Metric)
Power rating: 0.125W (1/8W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Number of terminations: 2
Composition: Thick Film

Allowable Variations:

Tolerance: The original part specifies ±5%. Substitute parts with ±1% tolerance are considered upgrades and are functionally compatible, as tighter tolerance represents improved performance within the same resistance value.
Packaging format: Cut Tape (CT) & Digi-Reel® is functionally equivalent to Tape & Reel (TR) for component selection purposes.
Moisture resistance features: Enhanced moisture resistance or automotive certifications (AEC-Q200) represent feature upgrades and do not prevent substitution.
Height variation: Seated height differences within the 0805 package envelope (0.020" to 0.028") are acceptable for PCB assembly compatibility.

Substitute parts are organized into two categories:

Direct Substitutes: Parts with identical tolerance (±5%) and equivalent electrical/mechanical specifications.

Upgrade Substitutes: Parts with improved tolerance (±1%) or enhanced features (automotive AEC-Q200 certification, high voltage capability) while maintaining all critical electrical and mechanical parameters.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Height Max (mm)	Features	RoHS
Samsung Electro-Mechanics	RC2012J221CS	220Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	Moisture Resistant	ROHS3
YAGEO	RC0805JR-07220RL	220Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Moisture Resistant	ROHS3
YAGEO	AC0805FR-07220RL	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Automotive AEC-Q200, Moisture Resistant	ROHS3
Bourns Inc.	CR0805-FX-2200ELF	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Moisture Resistant	ROHS3
TE Connectivity Passive Product	CRG0805F220R	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	None Listed	ROHS3
Panasonic Electronic Components	ERJ-6ENF2200V	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.70	Automotive AEC-Q200	ROHS3
Rohm Semiconductor	KTR10EZPF2200	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	Automotive AEC-Q200, High Voltage	ROHS3
YAGEO	RC0805FR-07220RL	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Moisture Resistant	ROHS3
Stackpole Electronics Inc	RMCF0805FT220R	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.65	Automotive AEC-Q200	ROHS3
YAGEO	AC0805JR-07220RL	220Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	0.60	Automotive AEC-Q200, Moisture Resistant	ROHS3
Vishay Dale	CRCW0805220RFKEA	220Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	0.50	Automotive AEC-Q200	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Identical Tolerance ±5%):

RC0805JR-07220RL (YAGEO) and AC0805JR-07220RL (YAGEO) are direct functional equivalents to the RC2012J221CS. Both maintain the ±5% tolerance specification and are ROHS3 compliant. AC0805JR-07220RL includes automotive AEC-Q200 certification, which provides additional qualification for automotive applications without compromising general-purpose use.

Upgrade Substitutes (Improved Tolerance ±1%):

The following parts provide tighter tolerance (±1%) while maintaining all critical electrical and mechanical parameters:

RC0805FR-07220RL (YAGEO): Direct upgrade with moisture resistance and ±1% tolerance
AC0805FR-07220RL (YAGEO): Upgrade with automotive AEC-Q200 certification and ±1% tolerance
CR0805-FX-2200ELF (Bourns Inc.): Upgrade with moisture resistance and ±1% tolerance
CRG0805F220R (TE Connectivity Passive Product): Upgrade with ±1% tolerance
ERJ-6ENF2200V (Panasonic Electronic Components): Upgrade with automotive AEC-Q200 certification and ±1% tolerance
KTR10EZPF2200 (Rohm Semiconductor): Upgrade with automotive AEC-Q200 certification, high voltage capability, and ±1% tolerance
RMCF0805FT220R (Stackpole Electronics Inc): Upgrade with automotive AEC-Q200 certification and ±1% tolerance
CRCW0805220RFKEA (Vishay Dale): Upgrade with automotive AEC-Q200 certification and ±1% tolerance

All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and operate within the specified temperature range of -55°C to 155°C. Selection among upgrade substitutes depends on specific application requirements regarding automotive qualification and feature availability.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a substitute for the ±5% RC2012J221CS?

A: Yes. A ±1% tolerance part is functionally compatible and represents an upgrade. The tighter tolerance provides improved accuracy while maintaining the same resistance value and all other critical electrical parameters. This substitution is valid for any application where the original ±5% tolerance was acceptable.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the 0805 (2012 Metric) package format with identical land pattern dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). Seated height variations (0.50mm to 0.70mm maximum) fall within acceptable PCB assembly tolerances for standard 0805 components and do not affect footprint compatibility.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

A: Both packaging formats contain the same component. Cut Tape & Digi-Reel® is supplied in smaller quantities on cut tape reels, while Tape & Reel (TR) is supplied in full production reels. The component specifications and performance are identical; packaging format selection depends on order quantity requirements and inventory management.

Q: Do I need automotive AEC-Q200 certification for general-purpose applications?

A: No. Automotive AEC-Q200 certification is not required for general-purpose applications. Parts with AEC-Q200 certification (such as AC0805FR-07220RL, ERJ-6ENF2200V, KTR10EZPF2200, RMCF0805FT220R, and CRCW0805220RFKEA) are qualified for automotive use but function identically to non-automotive rated parts in standard applications. Selection of AEC-Q200 certified parts is optional unless your application specifically requires automotive qualification.

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

A: MSL 1 (Unlimited) indicates the component has minimal moisture sensitivity and requires no special moisture control during storage, handling, or assembly. This rating applies to all listed substitute parts and the original RC2012J221CS, meaning they can be stored and handled under standard conditions without moisture-related degradation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original RC2012J221CS. This ensures compatibility with regulatory requirements for restricted substances in electronic components.

Q: Can I substitute parts with different manufacturers in the same design?

A: Yes. All substitute parts meet identical electrical specifications (220 Ohms, 0.125W, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and mechanical requirements (0805 package, 2 terminations). Substitution across different manufacturers is valid provided the critical parameters remain unchanged.

Q: What is the temperature coefficient and why does it matter?

A: The temperature coefficient of ±100ppm/°C indicates the resistance value changes by approximately 100 parts per million for each degree Celsius change in temperature. All listed parts share this specification, ensuring consistent thermal performance across the operating temperature range of -55°C to 155°C.

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