RC1608F4423CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F4423CS is a 442 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 characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and packaging compatibility to support component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	442 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
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for RC1608F4423CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 442 kOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

Package type: 0603 (1608 Metric)
Physical dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm) nominal
Height seated maximum: 0.022" (0.55mm) nominal
Number of terminations: 2

Compliance Parameters:

RoHS3 compliance
Moisture Sensitivity Level 1
REACH unaffected status

Substitute parts are grouped into three categories: Direct equivalent (identical specifications and packaging), Upgrade (discontinued at distributor but electrically equivalent), and Similar (automotive-grade AEC-Q200 rated alternatives with minor dimensional variations).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	MSL	RoHS	Product Status	Packaging Type
RC1608F4423CS	Samsung Electro-Mechanics	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Tape & Reel
RC0603FR-07442KL	YAGEO	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Cut Tape & Digi-Reel
MCR03ERTF4423	Rohm Semiconductor	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Discontinued at DiGi Electronics	Cut Tape & Digi-Reel
AC0603FR-07442KL	YAGEO	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Tape & Reel
CRCW0603442KFKEA	Vishay Dale	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Tape & Reel
ERJ-3EKF4423V	Panasonic Electronic Components	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Tape & Reel
RMCF0603FT442K	Stackpole Electronics Inc	442 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	Tape & Reel

Engineering Selection Recommendations

Direct Equivalent Selection: RC0603FR-07442KL (YAGEO) is the primary direct equivalent with identical electrical and mechanical specifications. This part maintains Active product status and is available in high volume (50,242 pcs in stock).

Automotive-Grade Alternatives: AC0603FR-07442KL, CRCW0603442KFKEA, ERJ-3EKF4423V, and RMCF0603FT442K are qualified substitutes with AEC-Q200 automotive certification. These parts meet all electrical and mechanical requirements with minor dimensional variations within tolerance. Selection among these alternatives depends on packaging preference (Tape & Reel format) and inventory availability.

Discontinued Part Consideration: MCR03ERTF4423 (Rohm Semiconductor) is electrically and mechanically equivalent but discontinued at DiGi Electronics. This part should be used only when existing inventory is available and long-term supply is not required.

Compliance Verification: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory compatibility with the original RC1608F4423CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07442KL replace RC1608F4423CS in all applications? A: Yes. RC0603FR-07442KL matches all critical electrical parameters (442 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C) and mechanical specifications (0603 package, MSL 1, ROHS3). Packaging format differs (Cut Tape & Digi-Reel vs. Tape & Reel) but does not affect component functionality.

Q: What is the difference between standard and automotive-grade substitutes? A: Automotive-grade parts (AC0603FR-07442KL, CRCW0603442KFKEA, ERJ-3EKF4423V, RMCF0603FT442K) carry AEC-Q200 certification for automotive applications. Electrical and mechanical specifications remain identical to the original part. Selection depends on application requirements and supply chain strategy.

Q: Are there dimensional differences between substitute parts? A: Minor dimensional variations exist within tolerance. CRCW0603442KFKEA dimensions are 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" height, while RMCF0603FT442K is 0.061" L x 0.031" W (1.55mm x 0.80mm). All variants fit 0603 package footprints and are PCB compatible.

Q: Should MCR03ERTF4423 be used as a substitute? A: MCR03ERTF4423 is electrically and mechanically equivalent but discontinued at DiGi Electronics. Use only when existing inventory is available and supply continuity is not a concern. For new designs, select from Active status alternatives.

Q: Do all substitutes maintain the same moisture sensitivity level? A: Yes. All listed substitutes maintain MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute offers the highest inventory availability? A: RMCF0603FT442K (Stackpole Electronics Inc) has the highest inventory at 60,831 pcs in stock, followed by RC0603FR-07442KL (YAGEO) at 50,242 pcs.

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