RC1608F9090CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F9090CS is a 909 Ohms ±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 1006 units currently in stock. The part is designed for general-purpose applications requiring moisture-resistant thick film construction with standard industrial temperature range operation from -55°C to 155°C.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization is required, or when design specifications allow for alternative qualified sources meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Specification
Resistance Value	909 Ohms
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
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F9090CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance Value: 909 Ohms
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
Number of Terminations: 2

Compliance Parameters:

RoHS Status: ROHS3 Compliant or equivalent
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected or REACH Affected (application-dependent)

All substitute parts listed below meet these mandatory electrical and mechanical parameters. Substitute parts are grouped into three categories based on product status and availability: Direct Equivalents (identical specifications and active status), Upgrade Options (discontinued at distributor but functionally equivalent), and Similar Parts (functionally equivalent with additional certifications such as AEC-Q200 automotive qualification).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	RoHS Status	Product Status	Inventory
RC1608F9090CS	Samsung Electro-Mechanics	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	1006
CR0603-FX-9090ELF	Bourns Inc.	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	75870
RC0603FR-07909RL	YAGEO	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	200160
MCR03ERTF9090	Rohm Semiconductor	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Discontinued at DiGi Electronics	1464
AC0603FR-07909RL	YAGEO	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	31145
CRCW0603909RFKEA	Vishay Dale	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	28615
CRCW0603909RFKTA	Vishay Dale	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	RoHS non-compliant	Active	24776
ERJ-3EKF9090V	Panasonic Electronic Components	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	33138
RMCF0603FT909R	Stackpole Electronics Inc	909 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Active	107650

Engineering Selection Recommendations

Direct Equivalents (Preferred for Standard Applications):

CR0603-FX-9090ELF (Bourns Inc.) and RC0603FR-07909RL (YAGEO) are direct functional equivalents with Active product status and ROHS3 compliance. RC0603FR-07909RL offers the highest inventory availability at 200,160 units. Both parts maintain identical electrical specifications and packaging dimensions to the RC1608F9090CS.

High-Availability Alternative:

RMCF0603FT909R (Stackpole Electronics Inc) provides the largest inventory stock at 107,650 units while maintaining full ROHS3 compliance and Active product status. This part is suitable for applications where supply chain continuity is prioritized.

Automotive-Qualified Alternatives:

AC0603FR-07909RL (YAGEO), CRCW0603909RFKEA (Vishay Dale), ERJ-3EKF9090V (Panasonic), and RMCF0603FT909R (Stackpole) all carry AEC-Q200 automotive qualification. These parts are appropriate for automotive and high-reliability applications requiring additional qualification documentation.

Compliance Consideration:

CRCW0603909RFKTA (Vishay Dale) is RoHS non-compliant and REACH Affected. This part is suitable only for applications where RoHS3 compliance is not required and REACH restrictions do not apply.

Discontinued Part:

MCR03ERTF9090 (Rohm Semiconductor) is discontinued at DiGi Electronics but remains functionally equivalent with 1,464 units available. This part is suitable only when existing inventory must be consumed or when alternative sources maintain stock.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07909RL be used as a direct replacement for RC1608F9090CS?

A: Yes. RC0603FR-07909RL meets all mandatory electrical parameters: 909 Ohms ±1% resistance, 0.1W power rating, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and 0603 package format. Both parts are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between standard and automotive-qualified versions?

A: Automotive-qualified parts (AC0603FR-07909RL, CRCW0603909RFKEA, ERJ-3EKF9090V, RMCF0603FT909R) carry AEC-Q200 certification, indicating compliance with automotive industry reliability and qualification standards. Standard versions (CR0603-FX-9090ELF, RC0603FR-07909RL) do not carry this certification. Both types meet identical electrical and mechanical specifications for the 909 Ohm 0603 resistor.

Q: Are there physical dimension differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package specification. Most parts specify 0.063" L x 0.031" W (1.60mm x 0.80mm). CRCW0603909RFKEA and CRCW0603909RFKTA specify 0.061" L x 0.033" W (1.55mm x 0.85mm). RMCF0603FT909R specifies 0.061" L x 0.031" W (1.55mm x 0.80mm). These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute part offers the best supply availability?

A: RMCF0603FT909R (Stackpole Electronics Inc) provides the highest inventory at 107,650 units. RC0603FR-07909RL (YAGEO) offers 200,160 units. CR0603-FX-9090ELF (Bourns Inc.) provides 75,870 units. All three are Active status with ROHS3 compliance.

Q: Is CRCW0603909RFKTA suitable for new designs?

A: CRCW0603909RFKTA is not recommended for new designs requiring RoHS3 compliance, as this part is RoHS non-compliant and REACH Affected. Use CRCW0603909RFKEA instead, which is ROHS3 compliant and REACH Unaffected while maintaining identical electrical specifications.

Q: Can MCR03ERTF9090 be used despite being discontinued?

A: MCR03ERTF9090 is functionally equivalent and remains in stock (1,464 units). It is suitable for applications where existing inventory must be consumed or when alternative sources maintain stock. For new procurement, use Active status alternatives such as RC0603FR-07909RL or RMCF0603FT909R.

Q: What packaging format is used for these substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) format except MCR03ERTF9090 and ERJ-3EKF9090V, which are supplied in Cut Tape (CT) & Digi-Reel® format. Packaging format does not affect electrical or mechanical compatibility.

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