RC1608F4531CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F4531CS is a 4.53 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with 933 pieces available in inventory. Equivalent and substitute parts are necessary to address supply chain continuity, alternative sourcing options, and application-specific requirements such as automotive qualification or packaging preferences.

Substiute Parts

RC1608F4531CS

Samsung Electro-MechanicsIn Stock: 966RC1608F4531CS Datasheet

Current PartRFQ

CR0603-FX-4531ELF

Bourns Inc.In Stock: 38887CR0603-FX-4531ELF Datasheet

DirectRFQ

RC0603FR-074K53L

YAGEOIn Stock: 65959RC0603FR-074K53L Datasheet

DirectRFQ

AC0603FR-074K53L

YAGEOIn Stock: 5510AC0603FR-074K53L Datasheet

SimilarRFQ

CRCW06034K53FKEA

Vishay DaleIn Stock: 18472CRCW06034K53FKEA Datasheet

SimilarRFQ

CRCW06034K53FKTA

Vishay DaleIn Stock: 15824CRCW06034K53FKTA Datasheet

SimilarRFQ

ERJ-3EKF4531V

Panasonic Electronic ComponentsIn Stock: 104706ERJ-3EKF4531V Datasheet

SimilarRFQ

RMCF0603FT4K53

Stackpole Electronics IncIn Stock: 81686RMCF0603FT4K53 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F4531CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 4.53 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: 1 (Unlimited)
• Number of terminations: 2

All substitute parts listed below meet these mandatory parameters. Substitute parts are further categorized by additional compliance certifications and packaging formats. Direct substitutes maintain identical electrical and mechanical specifications. Similar substitutes include automotive AEC-Q200 qualification, which represents an enhanced reliability standard suitable for automotive applications but does not alter the core electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Non-Automotive):

CR0603-FX-4531ELF (Bourns Inc.) and RC0603FR-074K53L (YAGEO) are direct electrical and mechanical equivalents to the RC1608F4531CS. Both parts maintain ROHS3 compliance and MSL 1 rating. Selection between these options depends on packaging preference: CR0603-FX-4531ELF is supplied in Tape & Reel format with 38,825 units in stock, while RC0603FR-074K53L is available in Cut Tape & Digi-Reel format with 65,935 units in stock.

Automotive-Qualified Substitutes (AEC-Q200):

AC0603FR-074K53L (YAGEO), CRCW06034K53FKEA (Vishay Dale), ERJ-3EKF4531V (Panasonic Electronic Components), and RMCF0603FT4K53 (Stackpole Electronics Inc) are all AEC-Q200 qualified alternatives. These parts are suitable for automotive applications requiring enhanced reliability qualification. All four maintain ROHS3 compliance and MSL 1 rating. Inventory availability ranges from 5,497 to 104,606 units depending on manufacturer.

Compliance Consideration:

CRCW06034K53FKTA (Vishay Dale) is AEC-Q200 qualified but carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS3 compliance is not required.

Packaging Format Selection:

For applications requiring Tape & Reel packaging: CR0603-FX-4531ELF, CRCW06034K53FKEA, CRCW06034K53FKTA, or RMCF0603FT4K53.

For applications requiring Cut Tape & Digi-Reel packaging: RC0603FR-074K53L, AC0603FR-074K53L, or ERJ-3EKF4531V.

Frequently Asked Questions (FAQ)

Q: Can I use an AEC-Q200 qualified part as a substitute for the RC1608F4531CS in a non-automotive application?

A: Yes. AEC-Q200 qualification represents an enhanced reliability standard and is fully backward compatible with non-automotive applications. All electrical and mechanical parameters remain identical.

Q: What is the difference between the CRCW06034K53FKEA and CRCW06034K53FKTA variants?

A: Both parts are electrically and mechanically identical with AEC-Q200 qualification. The primary difference is regulatory compliance: CRCW06034K53FKEA is ROHS3 compliant and REACH unaffected, while CRCW06034K53FKTA is RoHS non-compliant and REACH affected. Selection depends on application regulatory requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package specification. The RC1608F4531CS, CR0603-FX-4531ELF, RC0603FR-074K53L, AC0603FR-074K53L, ERJ-3EKF4531V, and RMCF0603FT4K53 all measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with height of 0.022" (0.55mm). CRCW06034K53FKEA and CRCW06034K53FKTA measure 0.061" L x 0.033" W (1.55mm x 0.85mm) with height of 0.020" (0.50mm). These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute part has the highest inventory availability?

A: ERJ-3EKF4531V (Panasonic Electronic Components) has the highest inventory with 104,606 units in stock.

Q: Can I substitute the RC1608F4531CS with a part that has different tolerance or temperature coefficient?

A: No. All substitute parts listed maintain ±1% tolerance and ±100ppm/°C temperature coefficient. Parts with different specifications are not considered equivalent and are not included in this reference.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed substitute parts carry this same MSL 1 rating.