Equivalent & Substitute Parts for RC2012J621CS

Part Overview

The RC2012J621CS is a 620 Ohms ±5% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is supplied in Tape & Reel packaging and is 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 operating parameters to ensure direct circuit board compatibility.

Key Parameters

Parameter	Specification
Resistance Value	620 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

Substitute parts for the RC2012J621CS are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Same Tolerance): The RC0805JR-07620RL from YAGEO maintains identical electrical specifications: 620 Ohms ±5% tolerance, 0.125W power rating, thick film composition, and ±100ppm/°C temperature coefficient. This part operates within the same temperature range (-55°C to 155°C) and shares the 0805 package footprint with matching physical dimensions (0.079" L x 0.049" W). Both parts carry MSL 1 rating and RoHS3 compliance, making this a true functional equivalent for applications where ±5% tolerance is specified.

Upgrade Equivalents (Improved Tolerance): Eight substitute parts offer ±1% tolerance while maintaining the same 620 Ohms resistance, 0.125W power rating, 0805 package, and operating temperature range. These include:

AC0805FR-07620RL (YAGEO) with Automotive AEC-Q200 certification
CR0805-FX-6200ELF (Bourns Inc.)
CRG0805F620R (TE Connectivity Passive Product)
ERJ-6ENF6200V (Panasonic Electronic Components) with Automotive AEC-Q200
KTR10EZPF6200 (Rohm Semiconductor) with Automotive AEC-Q200 and High Voltage features
RC0805FR-07620RL (YAGEO) in Cut Tape packaging
RMCF0805FT620R (Stackpole Electronics Inc) with Automotive AEC-Q200
CRCW0805620RFKEA (Vishay Dale) with Automotive AEC-Q200

Similar Parts (Different Power Rating): The CRCW0805620RFKEAHP from Vishay Dale provides 620 Ohms ±1% tolerance with 0.5W (1/2W) power rating in the same 0805 package. This part is suitable for applications requiring higher power dissipation capability while maintaining the same resistance value and tolerance.

Substitution logic is based strictly on: resistance value (620 Ohms), package type (0805), operating temperature range (-55°C to 155°C), composition (thick film), and compliance certifications (RoHS3, MSL 1). Tolerance upgrades from ±5% to ±1% represent improved accuracy without changing functional circuit behavior in most applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Composition	RoHS3	MSL
RC2012J621CS	Samsung Electro-Mechanics	620Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
RC0805JR-07620RL	YAGEO	620Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
AC0805FR-07620RL	YAGEO	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
CR0805-FX-6200ELF	Bourns Inc.	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
CRG0805F620R	TE Connectivity Passive Product	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
ERJ-6ENF6200V	Panasonic Electronic Components	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
KTR10EZPF6200	Rohm Semiconductor	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
RC0805FR-07620RL	YAGEO	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
RMCF0805FT620R	Stackpole Electronics Inc	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
CRCW0805620RFKEA	Vishay Dale	620Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1
CRCW0805620RFKEAHP	Vishay Dale	620Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1

Engineering Selection Recommendations

Direct Replacement (RC0805JR-07620RL): The RC0805JR-07620RL from YAGEO serves as the primary direct equivalent for the RC2012J621CS. Both parts maintain ±5% tolerance specification, identical power rating (0.125W), and matching 0805 package dimensions. Selection of this part is appropriate when the original ±5% tolerance specification must be preserved and component availability from the original manufacturer is constrained. Active product status and RoHS3 compliance ensure regulatory alignment.

Tolerance Upgrade Selection: When circuit design permits tolerance improvement, eight ±1% alternatives provide enhanced accuracy. Selection among these upgrade options depends on specific application requirements:

For general industrial applications without automotive qualification requirements, CR0805-FX-6200ELF (Bourns Inc.), CRG0805F620R (TE Connectivity), or RC0805FR-07620RL (YAGEO) are suitable selections based on inventory availability and lead time.

For automotive applications requiring AEC-Q200 certification, AC0805FR-07620RL (YAGEO), ERJ-6ENF6200V (Panasonic), KTR10EZPF6200 (Rohm), RMCF0805FT620R (Stackpole), or CRCW0805620RFKEA (Vishay Dale) are qualified selections. All maintain the specified operating temperature range (-55°C to 155°C) and RoHS3 compliance.

Higher Power Rating Selection: The CRCW0805620RFKEAHP from Vishay Dale provides 0.5W power rating in the same 0805 package footprint. This part is selected only when circuit analysis determines that power dissipation exceeds the 0.125W specification of the original part, while maintaining the same 620 Ohms resistance value and ±1% tolerance.

Packaging Consideration: The RC0805FR-07620RL is supplied in Cut Tape (CT) & Digi-Reel® packaging, differing from the Tape & Reel format of other substitutes. This packaging option is selected when component handling and placement equipment specifications require alternative tape formats.

All substitute parts listed maintain MSL 1 (Unlimited) moisture sensitivity level and RoHS3 compliance, ensuring compatibility with standard PCB assembly processes and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-07620RL directly replace RC2012J621CS without circuit redesign?

A: Yes. The RC0805JR-07620RL maintains identical electrical specifications (620 Ohms ±5%, 0.125W), matching temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 0805 package footprint. Physical dimensions are equivalent (0.079" L x 0.049" W). Both parts carry RoHS3 compliance and MSL 1 rating. Direct substitution is valid without circuit modification.

Q: What is the difference between ±5% and ±1% tolerance substitutes?

A: Tolerance specification defines the maximum deviation of actual resistance value from the nominal 620 Ohms specification. The RC2012J621CS with ±5% tolerance permits actual values between 589 Ohms and 651 Ohms. Upgrade substitutes with ±1% tolerance permit actual values between 613.8 Ohms and 626.2 Ohms. Selection of ±1% parts is appropriate when circuit design requires tighter resistance accuracy for voltage dividers, filter networks, or precision signal conditioning applications. Standard applications tolerating ±5% variation do not require tolerance upgrade.

Q: Are automotive-qualified parts (AEC-Q200) interchangeable with non-automotive parts?

A: Automotive AEC-Q200 qualified parts (AC0805FR-07620RL, ERJ-6ENF6200V, KTR10EZPF6200, RMCF0805FT620R, CRCW0805620RFKEA) meet additional qualification testing and reliability standards required for automotive applications. These parts are functionally interchangeable with non-automotive equivalents in non-automotive circuits. However, automotive-qualified parts should be specified for automotive applications to ensure compliance with vehicle manufacturer requirements and warranty obligations.

Q: What is the significance of the 0805 package designation?

A: The 0805 designation (2012 Metric) refers to the physical footprint dimensions: 0.079" length × 0.049" width (2.00mm × 1.25mm). All substitute parts listed maintain this identical package footprint, ensuring compatibility with existing PCB layouts and automated placement equipment without requiring circuit board redesign or requalification.

Q: When should CRCW0805620RFKEAHP (0.5W) be selected instead of 0.125W alternatives?

A: The CRCW0805620RFKEAHP with 0.5W power rating is selected only when circuit analysis determines that actual power dissipation in the 620 Ohms resistor exceeds 0.125W. Power dissipation is calculated as P = V²/R or P = I²×R. If calculated dissipation approaches or exceeds 0.125W, the higher-rated part prevents thermal stress and extends component reliability. The 0805 package footprint remains unchanged, but thermal management considerations may apply in high-dissipation applications.

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

A: MSL 1 indicates the component requires no special moisture protection or baking procedures prior to soldering. The part can be stored at standard warehouse conditions (23°C ± 2°C, 45% to 75% relative humidity) indefinitely without moisture absorption affecting solderability or performance. This classification simplifies supply chain handling and assembly process requirements compared to higher MSL ratings.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance certification, confirming absence of restricted substances (lead, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and bis(2-ethylhexyl) phthalate). This compliance is mandatory for products sold into European Union markets and is increasingly required globally. RoHS3 compliance ensures regulatory alignment with environmental and health protection standards.

Q: What is the temperature coefficient specification (±100ppm/°C)?

A: The temperature coefficient of ±100ppm/°C specifies the maximum fractional change in resistance value per degree Celsius change in operating temperature. For the 620 Ohms resistor, this represents a maximum change of 0.062 Ohms per degree Celsius (620 × 100 × 10⁻⁶). All substitute parts maintain this identical temperature coefficient, ensuring consistent thermal performance across the -55°C to 155°C operating range. This specification is critical for applications with wide temperature variation or precision temperature-dependent circuits.

Q: Can substitute parts be mixed in the same circuit board assembly?

A: Yes. All substitute parts maintain identical electrical specifications (620 Ohms, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and 0805 package footprint. Mixed use of different manufacturer parts in the same assembly is permissible from electrical and mechanical compatibility perspectives. However, procurement and quality control procedures should document part selection rationale and ensure traceability for warranty and reliability tracking purposes.

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