RC2012F684CS 680 kOhm 1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F684CS is a 680 kOhm thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This surface mount device operates at 0.125W (1/8W) power rating with ±1% tolerance and moisture resistant characteristics. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating. Current inventory status is Active with 897 pieces in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Resistance	680 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 ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC2012F684CS are classified into two categories based on substitution compatibility:

Direct Substitutes maintain identical electrical and mechanical specifications:

Resistance: 680 kOhms
Tolerance: ±1%
Power Rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature: -55°C ~ 155°C
Moisture Sensitivity Level: 1 (Unlimited)
RoHS Status: ROHS3 Compliant

Similar Substitutes share core electrical specifications but include additional features or certifications (such as Automotive AEC-Q200 qualification) that extend application scope without compromising base functionality. One part (ERJ-UP6F6803V) operates at higher power rating (0.5W instead of 0.125W) and is classified separately due to this specification difference.

All substitute parts maintain the same 0805 package footprint, enabling direct PCB layout compatibility. Dimensional variations in seated height (ranging from 0.020" to 0.028") remain within standard PCB assembly tolerances.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Package	Height Max (mm)	Features	Product Status
RC2012F684CS	Samsung Electro-Mechanics	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.65	Moisture Resistant	Active
CR0805-FX-6803ELF	Bourns Inc.	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.60	Moisture Resistant	Active
CRG0805F680K	TE Connectivity Passive Product	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.65	—	Active
ERJ-6ENF6803V	Panasonic Electronic Components	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.70	Automotive AEC-Q200	Active
KTR10EZPF6803	Rohm Semiconductor	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.65	Automotive AEC-Q200, High Voltage	Active
RC0805FR-07680KL	YAGEO	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.60	Moisture Resistant	Active
RMCF0805FT680K	Stackpole Electronics Inc	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.65	Automotive AEC-Q200	Active
AC0805FR-07680KL	YAGEO	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.60	Automotive AEC-Q200, Moisture Resistant	Active
CRCW0805680KFKEA	Vishay Dale	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.50	Automotive AEC-Q200	Active
ERJ-UP6F6803V	Panasonic Electronic Components	680 kOhms	±1%	0.5	±100	-55 ~ 155°C	0805	0.70	Anti-Sulfur, Automotive AEC-Q200, Pulse Withstanding	Active
MCR10ERTF6803	Rohm Semiconductor	680 kOhms	±1%	0.125	±100	-55 ~ 155°C	0805	0.65	—	Discontinued at DiGi Electronics

Engineering Selection Recommendations

For Standard Applications (Non-Automotive): CR0805-FX-6803ELF (Bourns Inc.) and RC0805FR-07680KL (YAGEO) are direct functional equivalents with moisture resistant characteristics matching the RC2012F684CS. Both maintain identical electrical specifications and compact 0.60mm seated height. Inventory availability is substantial (50,530 and 64,225 pieces respectively).

For Automotive Applications (AEC-Q200 Required): RMCF0805FT680K (Stackpole Electronics Inc.), ERJ-6ENF6803V (Panasonic Electronic Components), AC0805FR-07680KL (YAGEO), and CRCW0805680KFKEA (Vishay Dale) are qualified to AEC-Q200 automotive standards. All maintain 0.125W power rating and ±1% tolerance. Selection among these depends on specific supply chain requirements and inventory availability.

For High Voltage Applications: KTR10EZPF6803 (Rohm Semiconductor) combines Automotive AEC-Q200 qualification with high voltage capability, maintaining all core electrical specifications of the RC2012F684CS.

For Higher Power Margin Applications: ERJ-UP6F6803V (Panasonic Electronic Components) provides 0.5W power rating (4x the base specification) with anti-sulfur and pulse withstanding features, suitable for applications requiring thermal margin or transient protection. This part is not a direct substitute due to power rating difference but functions in the same circuit topology.

Parts to Avoid: MCR10ERTF6803 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs despite matching specifications.

All recommended active parts carry ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for RC2012F684CS on my PCB?

A: Yes, all active parts listed in the Parameter Comparison table with 0.125W power rating are direct functional replacements. The 0805 package footprint is identical across all manufacturers. Seated height variations (0.50mm to 0.70mm) fall within standard PCB assembly tolerances and do not affect placement or soldering.

Q: What is the difference between "Direct Substitutes" and "Similar Substitutes"?

A: Direct substitutes match all electrical and mechanical specifications of the RC2012F684CS. Similar substitutes include additional certifications (such as Automotive AEC-Q200) or enhanced features (such as anti-sulfur coating) that do not compromise base functionality. The ERJ-UP6F6803V is classified separately because its 0.5W power rating differs from the 0.125W specification.

Q: Are Automotive AEC-Q200 qualified parts compatible with non-automotive applications?

A: Yes. AEC-Q200 qualification represents a superset of standard reliability requirements. Parts qualified to AEC-Q200 (such as RMCF0805FT680K, ERJ-6ENF6803V, AC0805FR-07680KL, and CRCW0805680KFKEA) function identically in non-automotive circuits and offer enhanced reliability margins.

Q: Why does MCR10ERTF6803 appear in the list if it is discontinued?

A: MCR10ERTF6803 is included for reference purposes to document historical equivalency. For new designs and procurement, select from active parts only. RMCF0805FT680K (Stackpole Electronics Inc.) provides equivalent functionality with active product status.

Q: What does Moisture Sensitivity Level (MSL) 1 mean?

A: MSL 1 indicates unlimited shelf life without moisture bake requirements. The component does not require special moisture control during storage or handling, simplifying supply chain logistics compared to higher MSL ratings.

Q: Can I substitute RC2012F684CS with ERJ-UP6F6803V in my circuit?

A: ERJ-UP6F6803V is functionally compatible but operates at 0.5W power rating versus the 0.125W specification of RC2012F684CS. Use this part only if your circuit design permits higher power dissipation capability. The 0805 package footprint remains identical, enabling direct PCB placement.

Q: What is the significance of "Moisture Resistant" feature listed for some parts?

A: Moisture resistant thick film construction provides enhanced protection against humidity-induced performance degradation. This feature is present in RC2012F684CS, CR0805-FX-6803ELF, RC0805FR-07680KL, and AC0805FR-07680KL. Parts without this designation (CRG0805F680K, MCR10ERTF6803) function identically in standard operating environments but may show different long-term performance under high humidity conditions.

Q: How do I select between multiple substitute options?

A: Selection criteria are: (1) Product Status—choose Active parts for new designs; (2) Application Requirements—select AEC-Q200 qualified parts for automotive use; (3) Supply Chain—verify inventory availability and lead times; (4) Feature Requirements—choose moisture resistant variants if operating in high humidity environments; (5) Packaging Format—confirm Tape & Reel (TR) or Cut Tape (CT) availability matches your assembly process.

Q: Are all these parts ROHS3 compliant?

A: Yes. All active substitute parts listed carry ROHS3 compliance certification, ensuring compatibility with lead-free soldering processes and environmental regulations.

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