RC1608F910CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F910CS is a 91 Ohms ±1% 0.1W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is classified as Active product status with 1121 pieces currently in stock. The RC1608F910CS is supplied in Cut Tape (CT) packaging and features moisture-resistant construction suitable for general industrial and commercial applications. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	91 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 ~ 155°C
Size / Dimension	0.063" L x 0.031" W (1.60mm x 0.80mm)
Height - Seated (Max)	0.022" (0.55mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the RC1608F910CS is determined by strict equivalence across the following critical parameters: resistance value (91 Ohms), tolerance (±1%), power rating (0.1W), package format (0603 / 1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and regulatory compliance (ROHS3, REACH Unaffected). All identified substitute parts maintain these specifications without deviation. Substitute parts are categorized as Direct Manufacturer equivalents, Upgrade variants with enhanced certifications (AEC-Q200 automotive qualification), and Similar alternatives from different manufacturers. Packaging format variations (Cut Tape versus Tape & Reel) do not affect electrical or mechanical compatibility and represent logistics considerations only.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Size (mm)	Height Max (mm)	MSL	RoHS	Product Status	Packaging Type
RC1608F910CS	Samsung Electro-Mechanics	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Cut Tape (CT)
CR0603-FX-91R0ELF	Bourns Inc.	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)
RC0603FR-0791RL	YAGEO	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)
KTR03EZPF91R0	Rohm Semiconductor	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)
MCR03ERTF91R0	Rohm Semiconductor	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Discontinued	Cut Tape (CT)
AC0603FR-0791RL	YAGEO	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)
CRCW060391R0FKEA	Vishay Dale	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.55 x 0.85	0.50	1	ROHS3	Active	Tape & Reel (TR)
ERJ-3EKF91R0V	Panasonic Electronic Components	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.60 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)
RMCF0603FT91R0	Stackpole Electronics Inc	91 Ω	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	1.55 x 0.80	0.55	1	ROHS3	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Manufacturer Equivalents (Preferred for Standard Applications)

CR0603-FX-91R0ELF (Bourns Inc.) and RC0603FR-0791RL (YAGEO) are direct functional equivalents to the RC1608F910CS. Both maintain identical electrical specifications and mechanical dimensions. CR0603-FX-91R0ELF offers 67,233 units in stock inventory. RC0603FR-0791RL provides 109,401 units in stock. Both are Active product status with ROHS3 compliance and MSL 1 rating. Selection between these options is based on supply chain availability and packaging preference (Tape & Reel format).

Upgrade Variants with Automotive Certification (AEC-Q200)

KTR03EZPF91R0 (Rohm Semiconductor), AC0603FR-0791RL (YAGEO), CRCW060391R0FKEA (Vishay Dale), ERJ-3EKF91R0V (Panasonic Electronic Components), and RMCF0603FT91R0 (Stackpole Electronics Inc) are qualified to AEC-Q200 automotive standards. These parts maintain all electrical and mechanical specifications of the RC1608F910CS while providing enhanced reliability certification for automotive-grade applications. All five variants are Active product status. Inventory levels range from 2,654 to 71,165 units. These parts are suitable for applications requiring automotive-level component qualification without electrical or thermal performance changes.

Discontinued Product (Not Recommended for New Designs)

MCR03ERTF91R0 (Rohm Semiconductor) is marked as Discontinued at DiGi Electronics. While electrically and mechanically equivalent, this part should not be selected for new designs or long-term supply requirements. Existing inventory of 874 units may be available for legacy system support only.

Dimensional Tolerance Consideration

CRCW060391R0FKEA (Vishay Dale) and RMCF0603FT91R0 (Stackpole Electronics Inc) exhibit minor dimensional variations: length 1.55mm versus 1.60mm standard, and height 0.50mm versus 0.55mm standard for CRCW060391R0FKEA. These variations remain within 0603 package classification and do not affect PCB footprint compatibility. RMCF0603FT91R0 maintains standard height at 0.55mm with only length variation of 1.55mm.

Frequently Asked Questions (FAQ)

Q: Can RC1608F910CS be directly replaced with CR0603-FX-91R0ELF or RC0603FR-0791RL?

A: Yes. Both CR0603-FX-91R0ELF and RC0603FR-0791RL are direct functional equivalents. All electrical parameters (91 Ohms ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C) and mechanical specifications (0603 package, 1.60mm x 0.80mm, 0.55mm height) are identical. The only difference is packaging format (Tape & Reel versus Cut Tape) and manufacturer. PCB assembly compatibility is confirmed.

Q: What is the difference between standard and AEC-Q200 qualified parts?

A: AEC-Q200 qualification indicates automotive-grade reliability testing and quality standards. Parts KTR03EZPF91R0, AC0603FR-0791RL, CRCW060391R0FKEA, ERJ-3EKF91R0V, and RMCF0603FT91R0 carry this certification. Electrically and mechanically, these parts are identical to RC1608F910CS. AEC-Q200 certification is required for automotive applications but provides no performance advantage for general industrial use.

Q: Are there any dimensional incompatibilities between substitute parts?

A: CRCW060391R0FKEA has dimensions of 1.55mm x 0.85mm with 0.50mm height, compared to the standard 1.60mm x 0.80mm with 0.55mm height. RMCF0603FT91R0 has 1.55mm length with standard 0.80mm width and 0.55mm height. These minor variations remain within 0603 package tolerance and do not affect standard PCB footprints designed for 0603 components. Verification with PCB design files is recommended for high-density layouts.

Q: Why is MCR03ERTF91R0 listed if it is discontinued?

A: MCR03ERTF91R0 is included for reference in legacy system support scenarios. This part is electrically and mechanically equivalent but is no longer in active production. New designs should not specify this part number. Existing inventory may be available for replacement of failed components in fielded systems.

Q: What packaging format should be selected for production assembly?

A: Tape & Reel (TR) packaging is standard for automated pick-and-place assembly. Cut Tape (CT) packaging is suitable for manual assembly or small-volume prototyping. RC1608F910CS is supplied in Cut Tape format. Direct equivalents CR0603-FX-91R0ELF and RC0603FR-0791RL are available in Tape & Reel format with significantly higher inventory levels, making them preferred for production quantities.

Q: Are all substitute parts ROHS3 compliant and REACH unaffected?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status identical to RC1608F910CS. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

Q: Can substitute parts be mixed in the same production batch?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. Mixed sourcing from multiple manufacturers is permissible from a functional standpoint. However, manufacturing process documentation and traceability records should reflect the specific part numbers used in each assembly lot for quality and warranty purposes.

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