RC1608F155CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F155CS is a 1.5 MOhm ±1% thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is currently active in production with 1101 pieces in stock.

Equivalent and substitute parts are necessary when the original manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design requirements call for enhanced specifications such as automotive-grade qualification or improved reliability ratings.

Substiute Parts

RC1608F155CS

Samsung Electro-MechanicsIn Stock: 1122RC1608F155CS Datasheet

Current PartRFQ

RC0603FR-071M5L

YAGEOIn Stock: 243414RC0603FR-071M5L Datasheet

DirectRFQ

KTR03EZPF1504

Rohm SemiconductorIn Stock: 13948KTR03EZPF1504 Datasheet

UpgradeRFQ

MCR03ERTF1504

Rohm SemiconductorIn Stock: 2591MCR03ERTF1504 Datasheet

UpgradeRFQ

RMCF0603FT1M50

Stackpole Electronics IncIn Stock: 39377RMCF0603FT1M50 Datasheet

UpgradeRFQ

AC0603FR-071M5L

YAGEOIn Stock: 54623AC0603FR-071M5L Datasheet

SimilarRFQ

CRCW06031M50FKEA

Vishay DaleIn Stock: 31887CRCW06031M50FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F155CS is determined by strict alignment with the following core parameters:

Mandatory Matching Parameters:

• Resistance value: 1.5 MOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS3 Compliance

Allowable Variation Parameters:

• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C (within thermal performance envelope)
• Physical dimensions: Minor variations within 0603 package specification (length 1.55mm–1.60mm, width 0.80mm–0.85mm, height ≤0.55mm)
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
• Additional certifications: Automotive AEC-Q200 qualification is an upgrade feature, not a requirement

Substitution Categories:

Direct Substitutes maintain identical electrical and thermal specifications with equivalent performance characteristics.

Upgrade Substitutes provide enhanced features such as automotive-grade AEC-Q200 qualification while maintaining all core electrical parameters.

Similar Substitutes meet all mandatory parameters with minor allowable variations in temperature coefficient or physical dimensions within package tolerance.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Equivalent Performance):

RC0603FR-071M5L (YAGEO) is the primary direct substitute. This part maintains identical electrical specifications, thermal characteristics, and moisture-resistant construction. Both parts share the same series designation structure and are actively produced. Selection of this part introduces no performance trade-offs.

Upgrade Substitution (Enhanced Specifications):

KTR03EZPF1504 (Rohm Semiconductor), RMCF0603FT1M50 (Stackpole Electronics), AC0603FR-071M5L (YAGEO), and CRCW06031M50FKEA (Vishay Dale) all provide AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability and extended qualification documentation. KTR03EZPF1504 and RMCF0603FT1M50 additionally feature high-voltage construction. AC0603FR-071M5L and CRCW06031M50FKEA maintain moisture-resistant properties equivalent to the original part.

Limited Availability Substitution:

MCR03ERTF1504 (Rohm Semiconductor) is discontinued at DiGi Electronics and should be selected only when existing inventory must be maintained or when alternative sourcing channels are established. This part meets all core electrical and thermal requirements but carries reduced long-term availability assurance.

Temperature Coefficient Consideration:

RMCF0603FT1M50 operates with ±200ppm/°C temperature coefficient compared to the original ±100ppm/°C specification. This represents a 2× increase in temperature-dependent resistance drift. Selection of this part is appropriate only when circuit design tolerances accommodate this increased drift or when thermal stability is not a critical design parameter.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-071M5L be used as a direct replacement for RC1608F155CS without circuit redesign?

A: Yes. RC0603FR-071M5L is electrically and mechanically equivalent. Both parts share identical resistance (1.5 MOhms), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and moisture-resistant construction. No circuit redesign is required.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (RC0603FR-071M5L) provide equivalent performance to the original part. Upgrade substitutes (KTR03EZPF1504, RMCF0603FT1M50, AC0603FR-071M5L, CRCW06031M50FKEA) add AEC-Q200 automotive qualification while maintaining or exceeding all core electrical specifications. Upgrade substitutes are suitable for automotive applications or designs requiring enhanced reliability documentation.

Q: Is AEC-Q200 certification required for this resistor application?

A: AEC-Q200 certification is not required for the RC1608F155CS unless the application is automotive or subject to automotive supply chain requirements. For non-automotive applications, direct substitutes without AEC-Q200 qualification are fully acceptable.

Q: How does the ±200ppm/°C temperature coefficient of RMCF0603FT1M50 affect circuit performance?

A: The ±200ppm/°C coefficient means resistance changes twice as much per degree Celsius compared to the original ±100ppm/°C specification. At a 100°C temperature swing, resistance drift increases from ±0.15% to ±0.30%. Selection of RMCF0603FT1M50 is appropriate only when circuit design tolerances accommodate this increased drift or when the application operates in stable thermal environments.

Q: Can I use MCR03ERTF1504 if it is discontinued at DiGi Electronics?

A: MCR03ERTF1504 meets all electrical and thermal requirements and remains available through alternative distribution channels. However, long-term supply assurance is reduced due to discontinuation status. Use this part only when existing inventory is being maintained or when alternative sourcing agreements are established with secondary distributors.

Q: What are the physical dimension differences between substitute parts?

A: All parts conform to 0603 (1608 Metric) package specification. Minor variations exist: RC1608F155CS, RC0603FR-071M5L, and AC0603FR-071M5L measure 1.60mm length; RMCF0603FT1M50 and CRCW06031M50FKEA measure 1.55mm length. Width varies between 0.80mm and 0.85mm. Height remains ≤0.55mm for all parts. These variations are within standard 0603 package tolerance and do not affect PCB layout or assembly compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification identical to the original RC1608F155CS. All parts are also REACH unaffected and classified as EAR99 for export control purposes.

Q: Which substitute part offers the best inventory availability?

A: RC0603FR-071M5L (YAGEO) provides the highest inventory availability at 243,323 pieces in stock, followed by AC0603FR-071M5L (YAGEO) at 54,550 pieces. Both parts are actively produced and suitable for high-volume applications requiring assured supply.