RC1608F754CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F754CS is a 750 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 construction and ROHS3 compliance. Equivalent and substitute parts are identified when identical electrical specifications, mechanical dimensions, and environmental ratings are maintained across alternative manufacturers. This reference provides direct substitutes and functionally equivalent alternatives for design flexibility and supply chain optimization.

Key Parameters

Parameter	Specification
Resistance Value	750 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 to 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F754CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (750 kOhms), tolerance (±1%), power rating (0.1W), and temperature coefficient (±100ppm/°C) must be identical.

Mechanical Parameters: Package designation (0603 / 1608 Metric), physical dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm), and maximum seated height (0.022" / 0.55mm) must match or remain within component footprint compatibility.

Environmental & Compliance Parameters: Operating temperature range (-55°C to 155°C), MSL rating (1 - Unlimited), RoHS3 compliance, and REACH status must be maintained.

Composition: Thick film construction is required for all substitutes.

Parts are categorized as follows:

Direct Substitutes: Functionally identical across all electrical, mechanical, and environmental parameters with no additional certifications or features.

Upgrade Substitutes: Meet all base requirements with additional certifications (Automotive AEC-Q200, High Voltage) or enhanced features suitable for demanding applications.

Similar Substitutes: Meet all base requirements with additional certifications or minor feature enhancements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	MSL	RoHS	Features	Product Status
RC1608F754CS	Samsung Electro-Mechanics	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Moisture Resistant	Active
CR0603-FX-7503ELF	Bourns Inc.	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Moisture Resistant	Active
CRG0603F750K	TE Connectivity Passive Product	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	—	Active
RC0603FR-07750KL	YAGEO	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Moisture Resistant	Active
KTR03EZPF7503	Rohm Semiconductor	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Automotive AEC-Q200, High Voltage	Active
MCR03ERTF7503	Rohm Semiconductor	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	—	Discontinued at DiGi Electronics
AC0603FR-07750KL	YAGEO	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Automotive AEC-Q200, Moisture Resistant	Active
CRCW0603750KFKEA	Vishay Dale	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Automotive AEC-Q200	Active
ERJ-3EKF7503V	Panasonic Electronic Components	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Automotive AEC-Q200	Active
RMCF0603FT750K	Stackpole Electronics Inc	750 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Automotive AEC-Q200	Active

Engineering Selection Recommendations

Direct Substitutes (Equivalent Functionality):

CR0603-FX-7503ELF (Bourns Inc.) and RC0603FR-07750KL (YAGEO) are direct functional equivalents to RC1608F754CS. Both maintain identical electrical specifications, mechanical dimensions, moisture-resistant construction, and ROHS3 compliance. Selection between these options is based on supply availability and procurement lead times.

Upgrade Substitutes (Enhanced Certifications):

KTR03EZPF7503 (Rohm Semiconductor) and MCR03ERTF7503 (Rohm Semiconductor) provide identical base specifications with no additional features required for standard applications. MCR03ERTF7503 is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term availability.

Similar Substitutes (Additional Certifications Available):

AC0603FR-07750KL (YAGEO), CRCW0603750KFKEA (Vishay Dale), ERJ-3EKF7503V (Panasonic Electronic Components), and RMCF0603FT750K (Stackpole Electronics Inc) all carry Automotive AEC-Q200 certification. These parts are suitable for applications requiring automotive-grade reliability. AC0603FR-07750KL additionally maintains moisture-resistant construction. Selection of AEC-Q200 certified parts is appropriate when designs target automotive or high-reliability applications.

Product Status Consideration:

All recommended substitutes maintain Active product status except MCR03ERTF7503, which is discontinued at DiGi Electronics. For new designs and long-term supply assurance, select from parts with Active status.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07750KL replace RC1608F754CS in existing designs?

A: Yes. RC0603FR-07750KL (YAGEO) is a direct substitute with identical resistance (750 kOhms), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), MSL rating (1), and ROHS3 compliance. Moisture-resistant construction is maintained. No design modifications are required.

Q: What is the difference between standard and AEC-Q200 certified 750 kOhm resistors?

A: AEC-Q200 certification indicates compliance with automotive industry reliability and qualification standards. Parts such as AC0603FR-07750KL, CRCW0603750KFKEA, ERJ-3EKF7503V, and RMCF0603FT750K carry this certification. For non-automotive applications, standard parts (CR0603-FX-7503ELF, CRG0603F750K, RC0603FR-07750KL) provide equivalent electrical and mechanical performance at potentially lower cost.

Q: Are there dimensional differences between substitute parts?

A: Most substitutes maintain standard 0603 package dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm). CRCW0603750KFKEA has slightly different dimensions (0.061" L x 0.033" W / 1.55mm x 0.85mm) and maximum seated height (0.020" / 0.50mm). Verify PCB footprint compatibility before selection if space constraints exist.

Q: Should I select KTR03EZPF7503 for high-voltage applications?

A: KTR03EZPF7503 is designated as High Voltage in addition to Automotive AEC-Q200 certification. Selection should be based on specific application voltage requirements. For standard signal-level circuits, this upgrade is not necessary.

Q: Why is MCR03ERTF7503 listed if it is discontinued?

A: MCR03ERTF7503 is included for reference in existing designs or legacy systems. For new designs, select from Active status parts: CR0603-FX-7503ELF, CRG0603F750K, RC0603FR-07750KL, KTR03EZPF7503, AC0603FR-07750KL, CRCW0603750KFKEA, ERJ-3EKF7503V, or RMCF0603FT750K.

Q: What packaging options are available?

A: RC1608F754CS is supplied in Tape & Reel (TR) format. RC0603FR-07750KL is available in Cut Tape (CT) & Digi-Reel® format. All other substitutes are supplied in Tape & Reel (TR). Verify packaging requirements for automated assembly processes before final part selection.

Q: Are all substitutes REACH compliant?

A: RC1608F754CS, CR0603-FX-7503ELF, RC0603FR-07750KL, KTR03EZPF7503, MCR03ERTF7503, AC0603FR-07750KL, CRCW0603750KFKEA, ERJ-3EKF7503V, and RMCF0603FT750K are all REACH Unaffected or REACH Unaffected status. CRG0603F750K shows Vendor Undefined REACH status. Confirm REACH compliance with supplier if regulatory documentation is required.

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