RC1608F104CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F104CS is a 100 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative sourcing from qualified manufacturers while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value
Resistance	100 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F104CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 100 kOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS3 compliance
MSL Level 1

All substitute parts listed below meet these mandatory parameters. Substitute parts are categorized as either Direct Manufacturer equivalents (pin-for-pin, form-fit-function compatible) or Similar parts (functionally equivalent with additional certifications or features).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Composition	RoHS3	MSL	Packaging Type
RC1608F104CS	Samsung Electro-Mechanics	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel
CR0603-FX-1003ELF	Bourns Inc.	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Cut Tape & Digi-Reel
CRG0603F100K	TE Connectivity Passive Product	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Cut Tape & Digi-Reel
KTR03EZPF1003	Rohm Semiconductor	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel
RC0603FR-07100KL	YAGEO	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Cut Tape & Digi-Reel
RCG0603100KFKEA	Vishay Dale	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel
AC0603FR-07100KL	YAGEO	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Cut Tape & Digi-Reel
AF0603FR-07100KL	YAGEO	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel
ERJ-3EKF1003V	Panasonic Electronic Components	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Cut Tape & Digi-Reel
ERJ-S03F1003V	Panasonic Electronic Components	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel
RMCF0603FG100K	Stackpole Electronics Inc	100 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Thick Film	Yes	1	Tape & Reel

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the RC1608F104CS. Selection among equivalent parts should be based on the following criteria:

Direct Manufacturer Equivalents (CR0603-FX-1003ELF, CRG0603F100K, RC0603FR-07100KL, RCG0603100KFKEA) provide standard thick film 0603 resistor performance with identical electrical specifications and RoHS3 compliance.

Automotive-Qualified Alternatives (KTR03EZPF1003, AC0603FR-07100KL, AF0603FR-07100KL, ERJ-3EKF1003V, ERJ-S03F1003V, RMCF0603FG100K) carry AEC-Q200 certification, indicating qualification for automotive applications. These parts are suitable for designs requiring automotive-grade reliability and are functionally interchangeable with the base RC1608F104CS for general industrial applications.

Packaging Considerations: Parts available in Tape & Reel (TR) packaging include RC1608F104CS, KTR03EZPF1003, RCG0603100KFKEA, AF0603FR-07100KL, ERJ-S03F1003V, and RMCF0603FG100K. Parts available in Cut Tape (CT) & Digi-Reel packaging include CR0603-FX-1003ELF, CRG0603F100K, RC0603FR-07100KL, AC0603FR-07100KL, and ERJ-3EKF1003V. Packaging selection depends on assembly process requirements and volume specifications.

Inventory Availability: CRG0603F100K (584,118 pcs), RMCF0603FG100K (1,174,996 pcs), and ERJ-3EKF1003V (1,732,095 pcs) offer the highest stock levels for immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F104CS with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts meet identical electrical specifications (100 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C operating range) and physical package dimensions (0603 / 1608 Metric). Direct substitution is valid for standard applications.

Q: What is the difference between Direct Manufacturer equivalents and Similar parts?

A: Direct Manufacturer equivalents (CR0603-FX-1003ELF, CRG0603F100K, RC0603FR-07100KL, RCG0603100KFKEA) provide standard thick film performance. Similar parts include additional certifications such as AEC-Q200 automotive qualification or anti-sulfur features, making them suitable for specialized applications while remaining electrically and mechanically compatible.

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

A: Yes. AEC-Q200 certification indicates enhanced reliability testing and qualification standards. These parts are fully compatible with non-automotive designs and may be used as direct substitutes without performance degradation.

Q: Does packaging type (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging type affects only the physical delivery format and assembly process compatibility. Electrical and mechanical specifications remain identical regardless of packaging. Selection should be based on assembly equipment requirements and volume needs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, matching the environmental compliance status of the RC1608F104CS.

Q: What does MSL Level 1 mean for these resistors?

A: MSL (Moisture Sensitivity Level) 1 indicates Unlimited shelf life without moisture bake requirements. These components do not require special moisture control during storage or handling, simplifying inventory management and procurement logistics.

Q: Can I mix different manufacturers' parts in the same production batch?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. However, manufacturing process variations between suppliers may result in minor differences in physical appearance or performance characteristics within specified tolerances. Quality assurance procedures should verify compatibility with specific assembly processes.

Q: Which substitute offers the best availability for high-volume orders?

A: RMCF0603FG100K (Stackpole Electronics Inc) and ERJ-3EKF1003V (Panasonic Electronic Components) demonstrate the highest inventory levels (1,174,996 and 1,732,095 units respectively), providing optimal availability for large-scale production requirements.

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