RC1608F135CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F135CS is a 1.3 MOhms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Samsung Electro-Mechanics, this component is classified as Active product status with moisture-resistant construction. The part is ROHS3 compliant and suitable for general industrial applications requiring high-value resistive elements with tight tolerance specifications. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across multiple sourcing channels.

Key Parameters

Parameter	Value	Unit
Resistance	1.3	MOhms
Tolerance	±1%	-
Power Rating	0.1	W (1/10W)
Package / Case	0603 (1608 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 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	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F135CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 1.3 MOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Operating temperature range: -55°C to 155°C
RoHS compliance: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Temperature coefficient: ±100ppm/°C to ±200ppm/°C (within industrial tolerance)
Physical dimensions: Minor variations within 0603 package specification (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm)
Additional certifications: AEC-Q200 automotive qualification is an upgrade feature, not a restriction

All identified substitute parts meet these criteria and are classified as direct equivalents or upgrades based on additional certifications.

Parameter Comparison

Parameter	RC1608F135CS (Samsung)	RC0603FR-071M3L (YAGEO)	RMCF0603FT1M30 (Stackpole)	AC0603FR-071M3L (YAGEO)	CRCW06031M30FKEA (Vishay Dale)
Manufacturer	Samsung Electro-Mechanics	YAGEO	Stackpole Electronics Inc	YAGEO	Vishay Dale
Series	RC	RC_L	RMCF	AC	CRCW
Resistance	1.3 MOhms	1.3 MOhms	1.3 MOhms	1.3 MOhms	1.3 MOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W	0.1W
Package	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
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±200ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Size / Dimension	0.063" L x 0.031" W (1.60mm x 0.80mm)	0.063" L x 0.031" W (1.60mm x 0.80mm)	0.061" L x 0.031" W (1.55mm x 0.80mm)	0.063" L x 0.031" W (1.60mm x 0.80mm)	0.061" L x 0.033" W (1.55mm x 0.85mm)
Height - Seated (Max)	0.022" (0.55mm)	0.022" (0.55mm)	0.022" (0.55mm)	0.022" (0.55mm)	0.020" (0.50mm)
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Rating	-	-	AEC-Q200	AEC-Q200	AEC-Q200
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

RC0603FR-071M3L (YAGEO Direct Equivalent)

This part provides direct functional equivalence to the RC1608F135CS with identical electrical specifications, temperature coefficient, and physical dimensions. Both components share standard industrial thick film construction without automotive qualification. Selection is appropriate for general industrial applications where AEC-Q200 certification is not required. Inventory availability is 5200 units.

RMCF0603FT1M30 (Stackpole Upgrade)

This component qualifies as an upgrade substitute with AEC-Q200 automotive certification. The temperature coefficient specification is ±200ppm/°C, which remains within acceptable industrial tolerance bands. Physical dimensions show minor variation (1.55mm length vs. 1.60mm) within 0603 package specification. This part is suitable for applications requiring automotive-grade reliability. Inventory availability is 9148 units.

AC0603FR-071M3L (YAGEO Upgrade)

This part combines AEC-Q200 automotive certification with moisture-resistant construction and ±100ppm/°C temperature coefficient, matching the original specification exactly. Physical dimensions are identical to the RC1608F135CS. This represents a direct upgrade path for designs requiring automotive qualification without performance compromise. Inventory availability is 11220 units.

CRCW06031M30FKEA (Vishay Dale Upgrade)

This component provides AEC-Q200 automotive certification with ±100ppm/°C temperature coefficient. Physical dimensions show minor variation within 0603 package tolerance (1.55mm length, 0.85mm width, 0.50mm height). All electrical and thermal specifications remain equivalent. This part is suitable for automotive and industrial applications. Inventory availability is 54270 units.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-071M3L be used as a direct replacement for RC1608F135CS?

A: Yes. Both parts share identical resistance (1.3 MOhms), tolerance (±1%), power rating (0.1W), package (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Physical dimensions and MSL ratings are identical. No design modification is required.

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

A: RC0603FR-071M3L and RC1608F135CS are standard industrial thick film resistors. RMCF0603FT1M30, AC0603FR-071M3L, and CRCW06031M30FKEA include AEC-Q200 automotive qualification, indicating compliance with automotive reliability and testing standards. Electrical performance remains equivalent across all parts.

Q: Are there any physical dimension incompatibilities between substitute parts?

A: All substitute parts conform to 0603 (1608 Metric) package specification. Minor dimensional variations exist within specification tolerance: length ranges from 1.55mm to 1.60mm, width from 0.80mm to 0.85mm, and height from 0.50mm to 0.55mm. These variations are within standard PCB footprint design margins and do not affect mechanical compatibility.

Q: Which substitute part has the highest inventory availability?

A: CRCW06031M30FKEA (Vishay Dale) has the highest inventory with 54270 units in stock, followed by AC0603FR-071M3L (YAGEO) with 11220 units and RMCF0603FT1M30 (Stackpole) with 9148 units.

Q: Does temperature coefficient variation affect substitution eligibility?

A: The RC1608F135CS specifies ±100ppm/°C. RMCF0603FT1M30 specifies ±200ppm/°C. Both values fall within industrial thick film resistor tolerance bands and remain functionally equivalent for standard applications. Selection between these parts depends on application-specific temperature stability requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (RC0603FR-071M3L, RMCF0603FT1M30, AC0603FR-071M3L, and CRCW06031M30FKEA) are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original RC1608F135CS specification.

Q: Can automotive-rated parts be used in non-automotive applications?

A: Yes. AEC-Q200 qualified parts (RMCF0603FT1M30, AC0603FR-071M3L, CRCW06031M30FKEA) meet or exceed industrial specifications and are fully compatible with non-automotive applications. Automotive qualification represents additional testing and reliability assurance, not a restriction on use.

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