RC1608J684CS 680kΩ ±5% 1/10W 0603 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC1608J684CS is a 680 kOhms ±5% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package class, enabling design flexibility, supply chain optimization, and cost management in production environments.

Key Parameters

Parameter	Value
Resistance	680 kOhms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Temperature Coefficient	±100ppm/°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

Resistance value: 680 kOhms (exact match required)
Tolerance: ±5% or tighter (±1% acceptable as upgrade)
Power rating: 0.1W minimum (1/10W)
Package: 0603 (1608 Metric) only
Composition: Thick Film
Operating temperature range: -55°C ~ 155°C minimum
Moisture Sensitivity Level: 1 (Unlimited)
RoHS compliance: ROHS3 Compliant

Substitution Categories:

Direct Equivalents (±5% Tolerance): Parts maintaining identical tolerance specification with compatible electrical and thermal characteristics.

Upgrade Substitutes (±1% Tolerance): Parts with improved tolerance specification while maintaining all other electrical parameters and package compatibility.

Automotive-Rated Alternatives: Parts with AEC-Q200 certification providing enhanced reliability for automotive applications while maintaining core electrical specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Features	Packaging	Inventory (Pcs)
RC1608J684CS	Samsung Electro-Mechanics	680 kΩ	±5%	0.1	±100	Moisture Resistant	Tape & Reel	1,129
RC1608F684CS	Samsung Electro-Mechanics	680 kΩ	±1%	0.1	±100	Moisture Resistant	Cut Tape	758
CRCW0603680KJNEA	Vishay Dale	680 kΩ	±5%	0.1	±200	Automotive AEC-Q200	Tape & Reel	22,770
RC0603JR-07680KL	YAGEO	680 kΩ	±5%	0.1	±100	Moisture Resistant	Cut Tape & Digi-Reel	495,357
RMCF0603JT680K	Stackpole Electronics Inc	680 kΩ	±5%	0.1	±200	Automotive AEC-Q200	Tape & Reel	218,585
CRG0603F680K	TE Connectivity Passive Product	680 kΩ	±1%	0.1	±100	Thick Film	Tape & Reel	19,542
ERJ-3EKF6803V	Panasonic Electronic Components	680 kΩ	±1%	0.1	±100	Automotive AEC-Q200	Tape & Reel	74,827
ERJ-3GEYJ684V	Panasonic Electronic Components	680 kΩ	±5%	0.1	±200	Automotive AEC-Q200	Tape & Reel	247,930
KTR03EZPF6803	Rohm Semiconductor	680 kΩ	±1%	0.1	±100	Automotive AEC-Q200, High Voltage	Tape & Reel	3,884
RC0603FR-07680KL	YAGEO	680 kΩ	±1%	0.1	±100	Moisture Resistant	Cut Tape & Digi-Reel	269,891
RMCF0603FT680K	Stackpole Electronics Inc	680 kΩ	±1%	0.1	±100	Automotive AEC-Q200	Tape & Reel	315,100

Engineering Selection Recommendations

Direct Equivalent Selection (±5% Tolerance Requirement):

When tolerance specification of ±5% is mandatory for circuit design, the following parts maintain identical electrical performance:

RC0603JR-07680KL (YAGEO): Highest inventory availability (495,357 pcs) with moisture-resistant construction and ±100ppm/°C temperature coefficient matching the main part specification.
ERJ-3GEYJ684V (Panasonic): AEC-Q200 automotive-rated alternative with 247,930 pcs inventory, suitable for automotive applications requiring enhanced reliability qualification.
RMCF0603JT680K (Stackpole Electronics Inc): AEC-Q200 automotive-rated option with 218,585 pcs inventory and ±200ppm/°C temperature coefficient.
CRCW0603680KJNEA (Vishay Dale): AEC-Q200 automotive-rated alternative with 22,770 pcs inventory and ±200ppm/°C temperature coefficient.

Upgrade Selection (±1% Tolerance Specification):

When improved tolerance of ±1% is required or beneficial for circuit performance, the following parts provide tighter tolerance while maintaining all other electrical parameters:

RC0603FR-07680KL (YAGEO): 269,891 pcs inventory with moisture-resistant construction and ±100ppm/°C temperature coefficient.
RMCF0603FT680K (Stackpole Electronics Inc): 315,100 pcs inventory with AEC-Q200 automotive rating and ±100ppm/°C temperature coefficient.
ERJ-3EKF6803V (Panasonic): 74,827 pcs inventory with AEC-Q200 automotive rating and ±100ppm/°C temperature coefficient.
CRG0603F680K (TE Connectivity Passive Product): 19,542 pcs inventory with ±100ppm/°C temperature coefficient.
RC1608F684CS (Samsung Electro-Mechanics): 758 pcs inventory with moisture-resistant construction and ±100ppm/°C temperature coefficient.
KTR03EZPF6803 (Rohm Semiconductor): 3,884 pcs inventory with AEC-Q200 automotive rating, high voltage capability, and ±100ppm/°C temperature coefficient.

All listed parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and operating temperature range of -55°C ~ 155°C.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-07680KL replace RC1608J684CS directly?

A: Yes. RC0603JR-07680KL is a direct equivalent with identical 680 kΩ resistance, ±5% tolerance, 0.1W power rating, 0603 package, and -55°C ~ 155°C operating range. Both feature moisture-resistant thick film construction and ±100ppm/°C temperature coefficient. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and manufacturer (YAGEO versus Samsung Electro-Mechanics).

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

A: Tolerance specifies the maximum deviation from the nominal 680 kΩ resistance value. ±5% tolerance allows deviation between 646 kΩ and 714 kΩ. ±1% tolerance restricts deviation between 673.2 kΩ and 686.8 kΩ. ±1% parts provide tighter resistance control and are suitable for applications requiring higher precision. All ±1% alternatives listed maintain identical power rating, package, and operating temperature range.

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

A: Yes. AEC-Q200 certification indicates enhanced reliability qualification and stricter manufacturing controls. Parts such as CRCW0603680KJNEA, RMCF0603JT680K, ERJ-3GEYJ684V, ERJ-3EKF6803V, and RMCF0603FT680K with AEC-Q200 rating are fully compatible with non-automotive applications and provide equivalent or superior performance compared to non-automotive rated alternatives.

Q: What is the significance of temperature coefficient ±100ppm/°C versus ±200ppm/°C?

A: Temperature coefficient indicates resistance change per degree Celsius across the operating range. ±100ppm/°C produces smaller resistance variation across temperature extremes compared to ±200ppm/°C. For the -55°C to 155°C range (210°C span), ±100ppm/°C results in maximum 2.1% resistance change, while ±200ppm/°C results in maximum 4.2% change. Selection depends on circuit temperature stability requirements.

Q: Can I use Cut Tape packaging instead of Tape & Reel?

A: Packaging format (Cut Tape, Digi-Reel, or Tape & Reel) affects handling and automated assembly compatibility. Cut Tape and Digi-Reel formats are suitable for manual assembly or lower-volume production. Tape & Reel format is standard for high-volume automated pick-and-place assembly. Electrical and mechanical specifications remain identical across packaging formats for the same part number.

Q: Which substitute part has the highest inventory availability?

A: RC0603JR-07680KL (YAGEO) maintains the highest inventory with 495,357 pcs available. This part is a direct equivalent with ±5% tolerance, moisture-resistant construction, and ±100ppm/°C temperature coefficient. RMCF0603FT680K (Stackpole Electronics Inc) with 315,100 pcs is the highest-inventory ±1% tolerance alternative.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the main part RC1608J684CS specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message