RC1608F624CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F624CS is a 620 kOhms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with moisture-resistant characteristics suitable for general industrial and commercial applications. Substitute parts are identified when original inventory becomes unavailable, when alternative sourcing reduces lead times, or when design requirements necessitate enhanced specifications such as automotive qualification or high-voltage ratings.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	620 kOhms	Core electrical specification
Tolerance	±1%	Precision requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package Type	0603 (1608 Metric)	Physical form factor and PCB compatibility
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Stability over temperature range
Operating Temperature Range	-55°C ~ 155°C	Environmental operating limits
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling and storage requirements
RoHS Compliance	ROHS3 Compliant	Environmental regulation adherence

Substitute Part Grouping Explanation

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

Mandatory Equivalence Parameters:

Resistance value: 620 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 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)
RoHS status: ROHS3 Compliant (exact match required)
MSL rating: 1 (Unlimited) (exact match required)

Substitution Categories:

Direct Substitutes maintain all parameters identical to the main part with no additional features.

Upgrade Substitutes maintain all mandatory parameters while adding enhanced specifications such as automotive AEC-Q200 qualification or high-voltage ratings. These are suitable for applications requiring higher reliability standards.

Similar Substitutes maintain all mandatory parameters while incorporating automotive AEC-Q200 qualification. These are suitable for automotive and industrial applications requiring enhanced qualification standards.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	Features	AEC-Q200	Inventory (Pcs)
RC1608F624CS	Samsung Electro-Mechanics	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Moisture Resistant	No	685
CR0603-FX-6203ELF	Bourns Inc.	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Moisture Resistant	No	63955
RC0603FR-07620KL	YAGEO	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Moisture Resistant	No	211522
KTR03EZPF6203	Rohm Semiconductor	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Automotive AEC-Q200, High Voltage	Yes	7218
AC0603FR-07620KL	YAGEO	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Yes	10823
CRCW0603620KFKEA	Vishay Dale	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	27095
ERJ-3EKF6203V	Panasonic Electronic Components	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	73251
RMCF0603FT620K	Stackpole Electronics Inc	620 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Yes	103111

Engineering Selection Recommendations

For Direct Replacement (Non-Automotive Applications):

CR0603-FX-6203ELF (Bourns Inc.) and RC0603FR-07620KL (YAGEO) are direct functional equivalents to RC1608F624CS. Both maintain identical electrical specifications, package dimensions, and moisture-resistant characteristics. RC0603FR-07620KL offers significantly higher inventory availability (211,522 units) compared to the original part (685 units), reducing procurement lead time. Both parts carry ROHS3 compliance and MSL 1 rating.

For Automotive and Enhanced Reliability Applications:

KTR03EZPF6203 (Rohm Semiconductor), AC0603FR-07620KL (YAGEO), CRCW0603620KFKEA (Vishay Dale), ERJ-3EKF6203V (Panasonic Electronic Components), and RMCF0603FT620K (Stackpole Electronics Inc) are qualified to AEC-Q200 automotive standards. These parts maintain all mandatory electrical and thermal parameters while incorporating automotive-grade manufacturing and qualification processes. Selection among these options depends on inventory availability and supply chain preferences. RMCF0603FT620K provides the highest inventory level (103,111 units) among automotive-qualified options.

Inventory Considerations:

When original part availability is constrained, RC0603FR-07620KL provides the largest inventory pool for non-automotive applications. For automotive-qualified alternatives, ERJ-3EKF6203V (Panasonic) and RMCF0603FT620K (Stackpole) offer substantial inventory depth.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F624CS with any of the listed alternatives without circuit redesign?

A: Yes. All listed direct substitutes (CR0603-FX-6203ELF and RC0603FR-07620KL) maintain identical electrical specifications, tolerance, power rating, package dimensions, and operating temperature range. No circuit redesign is required for direct substitution. Automotive-qualified alternatives (KTR03EZPF6203, AC0603FR-07620KL, CRCW0603620KFKEA, ERJ-3EKF6203V, RMCF0603FT620K) are also electrically equivalent and physically compatible.

Q: What is the difference between direct substitutes and automotive-qualified substitutes?

A: Direct substitutes (CR0603-FX-6203ELF, RC0603FR-07620KL) are functionally identical to the original part with no additional certifications. Automotive-qualified substitutes carry AEC-Q200 certification, indicating compliance with automotive industry reliability and qualification standards. Automotive-qualified parts undergo additional testing and process controls but maintain identical electrical performance for general-purpose applications.

Q: Are there physical dimension differences between substitute parts?

A: All parts conform to 0603 (1608 Metric) package specification. Minor dimensional variations exist within tolerance: CRCW0603620KFKEA measures 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" max height, while other parts measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" max height. These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-07620KL (YAGEO) provides the highest inventory for non-automotive applications with 211,522 units in stock. For automotive-qualified alternatives, ERJ-3EKF6203V (Panasonic) offers 73,251 units and RMCF0603FT620K (Stackpole) offers 103,111 units.

Q: Do all substitutes maintain the same moisture sensitivity level?

A: Yes. All listed substitutes maintain MSL 1 (Unlimited) rating, identical to the original RC1608F624CS. This indicates no moisture sensitivity restrictions for storage, handling, or reflow processes.

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

A: Yes. Automotive-qualified parts (AEC-Q200 certified) exceed the reliability requirements of non-automotive applications and are fully compatible for general industrial and commercial use. They maintain identical electrical specifications and package compatibility.

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