RC1608F6342CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F6342CS is a 63.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status with moisture-resistant construction and unlimited moisture sensitivity level (MSL 1). The part is RoHS3 compliant and suitable for general industrial applications requiring standard tolerance resistors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental compliance ratings to ensure direct functional interchangeability in circuit designs.

Key Parameters

Parameter	Specification
Resistance Value	63.4 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 to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	RoHS3 Compliant
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitute parts for the RC1608F6342CS are classified into two categories based on functional equivalence and application scope:

Direct Equivalents (Industrial Grade): Parts matching all electrical parameters (63.4 kOhms, ±1%, 0.1W, 0603 package) with identical temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and moisture-resistant thick film construction. These parts carry no additional automotive qualification and are suitable for standard industrial applications.

Automotive-Qualified Equivalents (AEC-Q200): Parts matching all electrical and mechanical parameters of the main part but additionally certified to AEC-Q200 automotive standard. These parts are qualified for automotive and high-reliability applications where enhanced qualification testing and traceability are required.

Substitution Criteria:

Resistance value: 63.4 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature: -55°C to 155°C (exact match required)
Composition: Thick Film (exact match required)
Moisture resistance: Required
RoHS3 compliance: Required
MSL rating: 1 (Unlimited) (exact match required)

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp	Features	Product Status
Samsung Electro-Mechanics	RC1608F6342CS	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
Bourns Inc.	CR0603-FX-6342ELF	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
YAGEO	RC0603FR-0763K4L	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
YAGEO	AC0603FR-0763K4L	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Moisture Resistant	Active
Vishay Dale	CRCW060363K4FKEA	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
Vishay Dale	CRCW060363K4FKEB	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued at DiGi Electronics
Panasonic Electronic Components	ERJ-3EKF6342V	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
Stackpole Electronics Inc	RMCF0603FT63K4	63.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active

Engineering Selection Recommendations

For Industrial Applications (Non-Automotive): Select CR0603-FX-6342ELF (Bourns Inc.) or RC0603FR-0763K4L (YAGEO) as primary substitutes. Both parts maintain identical electrical specifications and moisture-resistant thick film construction without automotive qualification overhead. CR0603-FX-6342ELF offers higher inventory availability (63,673 pcs) compared to RC0603FR-0763K4L (53,074 pcs).

For Automotive and High-Reliability Applications: Select ERJ-3EKF6342V (Panasonic Electronic Components) or RMCF0603FT63K4 (Stackpole Electronics Inc) as primary substitutes. Both parts carry AEC-Q200 automotive qualification and maintain all electrical and mechanical specifications. RMCF0603FT63K4 provides superior inventory availability (336,227 pcs) and is recommended for high-volume production. ERJ-3EKF6342V (178,409 pcs) serves as secondary option.

For Automotive Applications with Packaging Flexibility: AC0603FR-0763K4L (YAGEO) provides AEC-Q200 qualification with Tape & Reel packaging. CRCW060363K4FKEA (Vishay Dale) offers alternative AEC-Q200 qualified option with Cut Tape & Digi-Reel packaging option.

Avoid: CRCW060363K4FKEB (Vishay Dale) is discontinued at DiGi Electronics and should not be selected for new designs despite active inventory status.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0763K4L (YAGEO) be used as a direct replacement for RC1608F6342CS (Samsung)?

A: Yes. RC0603FR-0763K4L matches all critical electrical parameters: 63.4 kOhms resistance, ±1% tolerance, 0.1W power rating, 0603 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both parts feature moisture-resistant thick film construction and RoHS3 compliance. Functional interchangeability is confirmed.

Q: What is the difference between industrial-grade and AEC-Q200 qualified resistors in this product line?

A: Industrial-grade parts (CR0603-FX-6342ELF, RC0603FR-0763K4L) meet standard electrical and environmental specifications without automotive qualification testing. AEC-Q200 qualified parts (ERJ-3EKF6342V, RMCF0603FT63K4, AC0603FR-0763K4L, CRCW060363K4FKEA) undergo additional qualification testing for automotive applications including thermal cycling, humidity bias, and mechanical stress testing. Selection depends on application requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within 0603 package specification. RC1608F6342CS and most substitutes specify 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW060363K4FKEA specifies 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" (0.50mm) maximum seated height. RMCF0603FT63K4 specifies 0.061" L x 0.031" W (1.55mm x 0.80mm). All variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability?

A: RMCF0603FT63K4 (Stackpole Electronics Inc) provides highest inventory availability at 336,227 pcs. This part is AEC-Q200 qualified and suitable for both automotive and industrial applications. For non-automotive applications, CR0603-FX-6342ELF (Bourns Inc.) offers 63,673 pcs availability.

Q: Is MSL 1 (Unlimited) moisture sensitivity maintained across all substitutes?

A: Yes. All substitute parts listed maintain MSL 1 (Unlimited) moisture sensitivity level, matching the RC1608F6342CS specification. No special moisture control or baking procedures are required for any of these parts prior to soldering.

Q: Can CRCW060363K4FKEB be used despite discontinuation status?

A: CRCW060363K4FKEB remains functionally equivalent with 20,684 pcs current inventory. However, discontinuation at DiGi Electronics indicates reduced long-term availability. For new designs and production planning, select CRCW060363K4FKEA (active status) or alternative AEC-Q200 qualified parts (ERJ-3EKF6342V, RMCF0603FT63K4) to ensure supply chain continuity.

Q: Do all substitutes maintain RoHS3 compliance and REACH unaffected status?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the RC1608F6342CS environmental compliance profile. ECCN classification (EAR99) and HTSUS code (8533.21.0030) are identical across all parts.

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