RC1608F34R8CS Equivalent & Substitute Parts

Part Overview

The RC1608F34R8CS is a 34.8 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with moisture resistant construction and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and consumer applications requiring precision resistive elements in compact form factors.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative sourcing improves supply chain resilience, or when design requirements necessitate components with enhanced certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC1608F34R8CS

Samsung Electro-MechanicsIn Stock: 747RC1608F34R8CS Datasheet

Current PartRFQ

RC0603FR-0734R8L

YAGEOIn Stock: 2066RC0603FR-0734R8L Datasheet

DirectRFQ

MCR03ERTF34R8

Rohm SemiconductorIn Stock: 1820MCR03ERTF34R8 Datasheet

UpgradeRFQ

CRCW060334R8FKEA

Vishay DaleIn Stock: 18557CRCW060334R8FKEA Datasheet

SimilarRFQ

ERJ-3EKF34R8V

Panasonic Electronic ComponentsIn Stock: 108166ERJ-3EKF34R8V Datasheet

SimilarRFQ

RMCF0603FT34R8

Stackpole Electronics IncIn Stock: 1435RMCF0603FT34R8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F34R8CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 34.8 Ohms (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 to 155°C (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 compliance (all substitutes must meet or exceed)
• MSL 1 rating (all substitutes must meet or exceed)
• REACH unaffected status (all substitutes must maintain)

All identified substitute parts meet these mandatory equivalence criteria. Variations in physical dimensions (length, width, height) within the 0603 package specification and differences in packaging format (Tape & Reel vs. Cut Tape) do not affect functional substitutability. Enhanced certifications such as automotive AEC-Q200 qualification represent additional capabilities beyond the base specification and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Direct Equivalent): RC0603FR-0734R8L (YAGEO) is the recommended direct equivalent. This part maintains identical electrical and mechanical specifications to the RC1608F34R8CS with Active product status and standard industrial compliance. Inventory availability is substantial at 1956 pieces.

Alternative Selections (Enhanced Capability): ERJ-3EKF34R8V (Panasonic), CRCW060334R8FKEA (Vishay Dale), and RMCF0603FT34R8 (Stackpole) are functionally equivalent with the addition of automotive AEC-Q200 qualification. These parts are suitable for applications requiring automotive-grade reliability without modification to circuit design. All three maintain Active product status.

Conditional Selection: MCR03ERTF34R8 (Rohm Semiconductor) meets all electrical and mechanical equivalence criteria but carries Discontinued at DiGi Electronics status. This part is suitable only when existing inventory is available through alternative distribution channels and long-term supply continuity is not required.

Packaging Consideration: RC0603FR-0734R8L, CRCW060334R8FKEA, ERJ-3EKF34R8V, and RMCF0603FT34R8 are supplied in Tape & Reel format. MCR03ERTF34R8 is supplied in Cut Tape & Digi-Reel format. Packaging selection depends on assembly process requirements and volume specifications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF34R8V replace RC1608F34R8CS in a non-automotive application? A: Yes. ERJ-3EKF34R8V meets all electrical and mechanical specifications required for RC1608F34R8CS. The AEC-Q200 automotive certification represents additional qualification beyond the base specification and does not restrict use in industrial or consumer applications.

Q: What is the difference between the physical dimensions listed for different manufacturers? A: Variations in stated dimensions (e.g., 0.063" L x 0.031" W versus 0.061" L x 0.033" W) fall within the 0603 package tolerance specification. These minor dimensional differences do not affect PCB footprint compatibility or functional performance. All parts are mechanically interchangeable on standard 0603 landing patterns.

Q: Is MCR03ERTF34R8 still available for new designs? A: MCR03ERTF34R8 is listed as Discontinued at DiGi Electronics. For new designs requiring long-term supply assurance, selection of an Active status part (RC0603FR-0734R8L, ERJ-3EKF34R8V, CRCW060334R8FKEA, or RMCF0603FT34R8) is recommended.

Q: Do all substitute parts maintain the same moisture sensitivity level? A: Yes. All identified substitute parts carry MSL 1 (Unlimited) rating, identical to the RC1608F34R8CS. No additional moisture handling precautions are required when substituting between these parts.

Q: What is the significance of the ±100ppm/°C temperature coefficient across all parts? A: The temperature coefficient specifies the fractional change in resistance per degree Celsius. All parts in this equivalence group maintain ±100ppm/°C, ensuring identical temperature stability performance across the -55°C to 155°C operating range.

Q: Can I use CRCW060334R8FKEA in place of RC1608F34R8CS for cost reduction? A: CRCW060334R8FKEA is functionally equivalent and carries AEC-Q200 automotive certification. Cost comparison depends on current market pricing and volume requirements. Electrical and mechanical performance are identical.

Q: Are there any circuit design modifications required when switching between these substitute parts? A: No circuit design modifications are required. All substitute parts are pin-compatible, electrically equivalent, and mechanically interchangeable on standard 0603 PCB footprints. Direct substitution is supported without schematic or layout changes.