RC1608F8451CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F8451CS is an 8.45 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 and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity). The part is supplied in Cut Tape (CT) packaging with 811 pieces currently in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for functionally identical components from different manufacturers that meet the same electrical and mechanical parameters.

Substiute Parts

RC1608F8451CS

Samsung Electro-MechanicsIn Stock: 877RC1608F8451CS Datasheet

Current PartRFQ

CR0603-FX-8451ELF

Bourns Inc.In Stock: 40819CR0603-FX-8451ELF Datasheet

DirectRFQ

RC0603FR-078K45L

YAGEOIn Stock: 465023RC0603FR-078K45L Datasheet

DirectRFQ

AC0603FR-078K45L

YAGEOIn Stock: 16214AC0603FR-078K45L Datasheet

SimilarRFQ

CRCW06038K45FKEA

Vishay DaleIn Stock: 21276CRCW06038K45FKEA Datasheet

SimilarRFQ

CRCW06038K45FKTA

Vishay DaleIn Stock: 5092CRCW06038K45FKTA Datasheet

SimilarRFQ

ERJ-3EKF8451V

Panasonic Electronic ComponentsIn Stock: 88277ERJ-3EKF8451V Datasheet

SimilarRFQ

RMCF0603FG8K45

Stackpole Electronics IncIn Stock: 4132RMCF0603FG8K45 Datasheet

SimilarRFQ

RMCF0603FT8K45

Stackpole Electronics IncIn Stock: 188101RMCF0603FT8K45 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC1608F8451CS is based on strict equivalence of the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Resistance: 8.45 kOhms (exact value)
• Tolerance: ±1% (precision class)
• Power Rating: 0.1W / 1/10W (thermal capacity)
• Temperature Coefficient: ±100ppm/°C (stability characteristic)
• Operating Temperature Range: -55°C ~ 155°C (environmental limits)

Mechanical Parameters (Non-Negotiable):

• Package / Case: 0603 (1608 Metric) (PCB footprint compatibility)
• Composition: Thick Film (manufacturing process)
• Number of Terminations: 2 (connection points)

Compliance Parameters:

• RoHS3 Compliant (regulatory requirement)
• MSL Level 1 (moisture handling)
• REACH Unaffected (chemical compliance)

Substitute parts are classified into two categories:

Direct Substitutes: Parts with identical electrical and mechanical specifications, differing only in manufacturer, packaging format (Cut Tape vs. Tape & Reel), or series designation. These parts are interchangeable without design modification.

Similar Substitutes: Parts meeting all core electrical and mechanical parameters but featuring additional certifications (AEC-Q200 automotive qualification). These parts exceed the base specification and are suitable for applications requiring automotive-grade reliability.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

All listed substitute parts meet the core electrical and mechanical specifications of the RC1608F8451CS. Selection among equivalents should be based on the following factors:

1. Packaging Format Compatibility:

• Cut Tape (CT) Format: RC1608F8451CS, CRCW06038K45FKTA, ERJ-3EKF8451V. Use when manual placement or small-batch assembly is required.
• Tape & Reel (TR) Format: CR0603-FX-8451ELF, RC0603FR-078K45L, AC0603FR-078K45L, CRCW06038K45FKEA, RMCF0603FG8K45, RMCF0603FT8K45. Use for automated pick-and-place assembly processes.

2. Inventory Availability:

• RMCF0603FT8K45 (Stackpole): 188,028 units (highest availability)
• RC0603FR-078K45L (YAGEO): 464,966 units (highest availability)
• CR0603-FX-8451ELF (Bourns): 40,775 units
• CRCW06038K45FKEA (Vishay Dale): 21,233 units
• AC0603FR-078K45L (YAGEO): 16,112 units
• ERJ-3EKF8451V (Panasonic): 88,266 units
• RMCF0603FG8K45 (Stackpole): 4,107 units
• CRCW06038K45FKTA (Vishay Dale): 5,046 units

3. Automotive Qualification: Parts designated with AEC-Q200 certification (AC0603FR-078K45L, CRCW06038K45FKEA, CRCW06038K45FKTA, ERJ-3EKF8451V, RMCF0603FG8K45, RMCF0603FT8K45) are suitable for automotive applications requiring enhanced reliability qualification. The base RC1608F8451CS and CR0603-FX-8451ELF, RC0603FR-078K45L do not carry AEC-Q200 designation.

4. Regulatory Compliance: All parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0030.

Frequently Asked Questions (FAQ)

Q1: Can I substitute RC1608F8451CS with any of the listed parts without design modification?

A: Yes. All listed parts are electrically and mechanically equivalent. They share identical resistance value (8.45 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Direct substitution is possible at the component level without circuit redesign.

Q2: What is the difference between "Direct Substitutes" and "Similar Substitutes"?

A: Direct substitutes (CR0603-FX-8451ELF, RC0603FR-078K45L) are functionally identical to the RC1608F8451CS with no additional certifications. Similar substitutes (AC0603FR-078K45L, CRCW06038K45FKEA, CRCW06038K45FKTA, ERJ-3EKF8451V, RMCF0603FG8K45, RMCF0603FT8K45) include AEC-Q200 automotive qualification, which exceeds the base specification and is suitable for automotive applications.

Q3: Does packaging format affect electrical performance?

A: No. Cut Tape (CT) and Tape & Reel (TR) packaging formats are different delivery methods only. They do not affect the electrical characteristics or performance of the resistor. Selection should be based on assembly process requirements: manual assembly typically uses Cut Tape, while automated assembly uses Tape & Reel.

Q4: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts, including the main part RC1608F8451CS, are RoHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q5: What does MSL Level 1 (Unlimited) mean for handling?

A: MSL Level 1 indicates unlimited shelf life without moisture baking requirements. These components can be stored at room temperature without special moisture control measures, simplifying inventory management and reducing handling costs.

Q6: Which substitute part has the highest inventory availability?

A: RC0603FR-078K45L (YAGEO) has the highest inventory with 464,966 units in stock, followed by RMCF0603FT8K45 (Stackpole) with 188,028 units. These parts are recommended for applications requiring immediate large-volume procurement.

Q7: Can I use an AEC-Q200 qualified part in a non-automotive application?

A: Yes. AEC-Q200 qualification represents enhanced reliability testing and is a superset of standard specifications. Parts with AEC-Q200 certification can be used in any application where the base specification is required, including non-automotive designs.

Q8: What is the physical size difference between 0603 package variants?

A: The 0603 (1608 Metric) package is standardized. Most parts share dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) with height of 0.022" (0.55mm). Minor variations exist: CRCW series parts measure 0.061" L x 0.033" W (1.55mm x 0.85mm) with height 0.020" (0.50mm). These dimensional variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q9: Are there any temperature coefficient differences among substitute parts?

A: No. All parts, including the main part and all substitutes, share an identical temperature coefficient of ±100ppm/°C, ensuring consistent performance across the operating temperature range of -55°C ~ 155°C.

Q10: Which manufacturers are represented in the substitute list?

A: The substitute parts are manufactured by: Bourns Inc. (CR0603-FX-8451ELF), YAGEO (RC0603FR-078K45L, AC0603FR-078K45L), Vishay Dale (CRCW06038K45FKEA, CRCW06038K45FKTA), Panasonic Electronic Components (ERJ-3EKF8451V), and Stackpole Electronics Inc (RMCF0603FG8K45, RMCF0603FT8K45). All are established manufacturers with established supply chains.