RC1608F90R9CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F90R9CS is a 90.9 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with moisture resistant construction and ROHS3 compliance. Substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental ratings (operating temperature range, moisture sensitivity level).

Key Parameters

Parameter	Value	Specification Basis
Resistance	90.9 Ohms	Exact match required
Tolerance	±1%	Exact match required
Power Rating	0.1W (1/10W)	Exact match required
Package / Case	0603 (1608 Metric)	Exact match required
Composition	Thick Film	Exact match required
Temperature Coefficient	±100ppm/°C	Exact match required
Operating Temperature Range	-55°C ~ 155°C	Exact match required
Number of Terminations	2	Exact match required
RoHS Status	ROHS3 Compliant	Exact match required
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Exact match required

Substitute Part Grouping Explanation

Substitute parts for the RC1608F90R9CS are classified into three categories based on product status and feature alignment:

Direct Substitute (Functional Equivalent): RC0603FR-0790R9L (YAGEO) matches all electrical and mechanical parameters with identical specifications and active product status. This part is available in higher inventory volume (94,868 pcs) and serves as a direct functional replacement.

Upgrade Substitute (Discontinued Status): MCR03ERTF90R9 (Rohm Semiconductor) provides identical electrical and mechanical specifications but carries discontinued status at DiGi Electronics. This part is listed as an upgrade option with limited inventory (696 pcs).

Similar Substitutes (Feature-Enhanced Options): CRCW060390R9FKEA (Vishay Dale), ERJ-3EKF90R9V (Panasonic Electronic Components), RMCF0603FG90R9 (Stackpole Electronics Inc), and RMCF0603FT90R9 (Stackpole Electronics Inc) all match core electrical and mechanical specifications. These parts include Automotive AEC-Q200 certification, which is an additional qualification not present in the main part. All maintain identical resistance, tolerance, power rating, package size, temperature coefficient, operating temperature range, and MSL rating.

Substitution Logic: All identified substitutes maintain exact equivalence in: resistance value (90.9 Ohms), tolerance (±1%), power rating (0.1W), package (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature (-55°C ~ 155°C), termination count (2), RoHS3 compliance, and MSL 1 rating. Dimensional variations within supplier device package specifications do not affect functional interchangeability.

Parameter Comparison

Parameter	RC1608F90R9CS (Samsung)	RC0603FR-0790R9L (YAGEO)	MCR03ERTF90R9 (Rohm)	CRCW060390R9FKEA (Vishay)	ERJ-3EKF90R9V (Panasonic)	RMCF0603FG90R9 (Stackpole)	RMCF0603FT90R9 (Stackpole)
Resistance	90.9 Ohms	90.9 Ohms	90.9 Ohms	90.9 Ohms	90.9 Ohms	90.9 Ohms	90.9 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W	0.1W	0.1W	0.1W
Package / Case	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Number of Terminations	2	2	2	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Discontinued at DiGi Electronics	Active	Active	Active	Active
Automotive Rating	None	None	None	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200
Packaging Type	Cut Tape (CT)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)
Inventory Availability	1,025 pcs	94,868 pcs	696 pcs	20,893 pcs	54,630 pcs	2,037 pcs	81,980 pcs

Engineering Selection Recommendations

Primary Selection - RC0603FR-0790R9L (YAGEO): This part is the recommended direct substitute. It maintains active product status, matches all electrical and mechanical specifications of the RC1608F90R9CS, and offers the highest inventory availability (94,868 pcs) among direct equivalents. Packaging is Tape & Reel (TR), suitable for automated assembly processes.

Secondary Selection - RMCF0603FT90R9 (Stackpole Electronics Inc): This part is suitable when automotive-grade qualification is required. It carries AEC-Q200 certification, maintains all core specifications, and provides high inventory availability (81,980 pcs). Packaging is Tape & Reel (TR).

Alternative Selection - CRCW060390R9FKEA (Vishay Dale): This part is suitable for automotive applications requiring AEC-Q200 compliance. It offers substantial inventory (20,893 pcs) and is available in both Cut Tape and Digi-Reel packaging options.

Alternative Selection - ERJ-3EKF90R9V (Panasonic Electronic Components): This part is suitable for automotive applications with AEC-Q200 requirement. It provides high inventory availability (54,630 pcs) and Tape & Reel packaging.

Not Recommended - MCR03ERTF90R9 (Rohm Semiconductor): This part carries discontinued status at DiGi Electronics with limited inventory (696 pcs). Selection should be avoided unless specific design history or qualification documentation requires this manufacturer.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0790R9L be used as a direct replacement for RC1608F90R9CS?

A: Yes. RC0603FR-0790R9L is a direct functional equivalent. Both parts share identical electrical specifications (90.9 Ohms ±1%, 0.1W), mechanical package (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance ratings (ROHS3, MSL 1). The primary difference is packaging format (Tape & Reel vs. Cut Tape) and inventory availability.

Q: What is the difference between the main part and AEC-Q200 qualified substitutes?

A: The RC1608F90R9CS does not carry automotive AEC-Q200 certification. Substitutes CRCW060390R9FKEA, ERJ-3EKF90R9V, RMCF0603FG90R9, and RMCF0603FT90R9 include AEC-Q200 qualification, which is an additional automotive-grade reliability standard. All other electrical and mechanical parameters remain identical. Use AEC-Q200 qualified parts only when automotive specifications are required.

Q: Are there packaging compatibility considerations when substituting these parts?

A: Yes. The main part RC1608F90R9CS is supplied in Cut Tape (CT) packaging. Direct substitute RC0603FR-0790R9L is supplied in Tape & Reel (TR). Both packaging formats are compatible with standard pick-and-place assembly equipment. Verify your assembly process supports the selected packaging format. Stackpole RMCF0603FG90R9 is available in Cut Tape; RMCF0603FT90R9 is available in Tape & Reel.

Q: Why is MCR03ERTF90R9 listed as an upgrade substitute if it is discontinued?

A: MCR03ERTF90R9 is included in the reference for design history and legacy system documentation purposes. It maintains identical electrical and mechanical specifications but carries discontinued status at DiGi Electronics with limited inventory (696 pcs). New designs should not select this part; use active status alternatives instead.

Q: Do all substitute parts meet the same environmental and compliance requirements?

A: Yes. All identified substitutes maintain ROHS3 compliance, MSL 1 (Unlimited) rating, REACH Unaffected status, and identical operating temperature range (-55°C ~ 155°C). Environmental and compliance specifications are equivalent across all parts listed.

Q: What inventory considerations should guide part selection?

A: RC0603FR-0790R9L (YAGEO) offers the highest inventory availability at 94,868 pcs, followed by RMCF0603FT90R9 (Stackpole) at 81,980 pcs and ERJ-3EKF90R9V (Panasonic) at 54,630 pcs. For high-volume production, these three options provide optimal supply chain stability. MCR03ERTF90R9 (Rohm) with only 696 pcs should be avoided for new designs.

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