RC1608F165CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F165CS is a 1.6 MOhm ±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 unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements with moisture resistance and stable performance across the -55°C to 155°C operating temperature range. Equivalent and substitute parts are necessary to address supply chain continuity, alternative sourcing options, and application-specific requirements such as automotive qualification or enhanced performance characteristics.

Substiute Parts

RC1608F165CS

Samsung Electro-MechanicsIn Stock: 1245RC1608F165CS Datasheet

Current PartRFQ

RC0603FR-071M6L

YAGEOIn Stock: 27688RC0603FR-071M6L Datasheet

DirectRFQ

KTR03EZPF1604

Rohm SemiconductorIn Stock: 8991KTR03EZPF1604 Datasheet

UpgradeRFQ

RMCF0603FT1M60

Stackpole Electronics IncIn Stock: 13271RMCF0603FT1M60 Datasheet

UpgradeRFQ

AC0603FR-071M6L

YAGEOIn Stock: 13598AC0603FR-071M6L Datasheet

SimilarRFQ

CRCW06031M60FKEA

Vishay DaleIn Stock: 19906CRCW06031M60FKEA Datasheet

SimilarRFQ

ERJ-3EKF1604V

Panasonic Electronic ComponentsIn Stock: 5162ERJ-3EKF1604V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F165CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 1.6 MOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C
• Termination count: 2
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

• Temperature coefficient: ±100ppm/°C or ±200ppm/°C (within thermal stability requirements)
• Physical dimensions: Minor variations within 0603 package specification (length 1.55–1.60mm, width 0.80–0.85mm, height ≤0.55mm)
• Packaging format: Cut Tape (CT) or Tape & Reel (TR)
• Manufacturer: Different manufacturers with equivalent specifications

Classification Basis:

• Direct Substitutes: Identical electrical and mechanical parameters, different manufacturer or packaging
• Upgrade Substitutes: Enhanced features (automotive AEC-Q200 qualification, high voltage capability) while maintaining core electrical specifications
• Similar Substitutes: Meet all mandatory parameters with minor variations in temperature coefficient or physical dimensions; may include automotive qualification

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (RC0603FR-071M6L): RC0603FR-071M6L from YAGEO is a direct electrical and mechanical equivalent to RC1608F165CS. Both components share identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. The primary difference is packaging format (Tape & Reel versus Cut Tape) and manufacturer. This part is suitable for applications where the original Samsung component is unavailable and no additional performance requirements exist. Product status is Active with full RoHS3 compliance.

Upgrade Substitution (KTR03EZPF1604, AC0603FR-071M6L, CRCW06031M60FKEA): These parts provide automotive AEC-Q200 qualification in addition to meeting all core electrical specifications of the RC1608F165CS. KTR03EZPF1604 (Rohm Semiconductor) and CRCW06031M60FKEA (Vishay Dale) are suitable for automotive applications requiring enhanced reliability and qualification standards. AC0603FR-071M6L (YAGEO) combines automotive AEC-Q200 qualification with moisture resistance, matching the environmental protection of the original part. All three maintain Active product status and RoHS3 compliance. These upgrades are appropriate when designs migrate to automotive-grade component specifications or when enhanced reliability margins are required.

Conditional Substitution (RMCF0603FT1M60): RMCF0603FT1M60 from Stackpole Electronics Inc meets all mandatory electrical parameters with automotive AEC-Q200 qualification. The temperature coefficient specification is ±200ppm/°C compared to ±100ppm/°C for the original part. This wider tolerance is acceptable in applications where thermal stability requirements permit the increased coefficient variation. Physical dimensions show minor variation (1.55mm length versus 1.60mm) within 0603 package tolerance. This part is suitable for automotive applications where the relaxed temperature coefficient specification does not compromise circuit performance.

Obsolete Status (ERJ-3EKF1604V): ERJ-3EKF1604V from Panasonic Electronic Components is classified as Obsolete product status. While electrical and mechanical specifications are equivalent to RC1608F165CS with automotive AEC-Q200 qualification, the obsolete designation indicates discontinued manufacturing. This part should not be selected for new designs or long-term supply chain planning. Existing inventory may be available but future procurement is not assured.

Frequently Asked Questions (FAQ)

Q1: Can RC0603FR-071M6L replace RC1608F165CS in all applications?

A: Yes. RC0603FR-071M6L is a direct electrical and mechanical equivalent. Both components have identical resistance (1.6 MOhms), tolerance (±1%), power rating (0.1W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The only difference is packaging format (Tape & Reel versus Cut Tape) and manufacturer. Substitution is valid for all applications where the original part was specified.

Q2: What is the difference between the main part and the "upgrade" substitutes?

A: The upgrade substitutes (KTR03EZPF1604, AC0603FR-071M6L, CRCW06031M60FKEA) include automotive AEC-Q200 qualification, which certifies the components for automotive applications with enhanced reliability and quality standards. The core electrical specifications remain identical to RC1608F165CS. These upgrades are appropriate when designs require automotive-grade components or when enhanced reliability margins are necessary. Non-automotive applications do not require these upgrades.

Q3: Why does RMCF0603FT1M60 have a different temperature coefficient (±200ppm/°C)?

A: RMCF0603FT1M60 is manufactured by Stackpole Electronics Inc with a temperature coefficient specification of ±200ppm/°C, compared to ±100ppm/°C for RC1608F165CS. This represents a wider tolerance band for resistance variation across the operating temperature range. Substitution is valid only in applications where the circuit design permits this increased thermal drift. Applications with tight temperature stability requirements should use parts with ±100ppm/°C specification.

Q4: Can ERJ-3EKF1604V be used as a substitute?

A: ERJ-3EKF1604V meets all electrical and mechanical specifications and includes automotive AEC-Q200 qualification. However, this part is classified as Obsolete, indicating discontinued manufacturing. While existing inventory may be available, future procurement cannot be assured. This part should not be selected for new designs or applications requiring long-term supply chain stability.

Q5: What packaging formats are available among the substitute parts?

A: RC1608F165CS is supplied in Cut Tape (CT) format. Direct substitute RC0603FR-071M6L is available in Tape & Reel (TR) format. Upgrade substitutes KTR03EZPF1604, RMCF0603FT1M60, AC0603FR-071M6L, and CRCW06031M60FKEA are supplied in Tape & Reel (TR) format. ERJ-3EKF1604V is available in Cut Tape (CT) & Digi-Reel® format. Packaging format selection depends on assembly process requirements and volume considerations.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (RC0603FR-071M6L, KTR03EZPF1604, RMCF0603FT1M60, AC0603FR-071M6L, CRCW06031M60FKEA, ERJ-3EKF1604V) are RoHS3 compliant with MSL rating of 1 (Unlimited). This ensures compatibility with environmental and regulatory requirements equivalent to the original RC1608F165CS.

Q7: Which substitute part should be selected for automotive applications?

A: For automotive applications, select from the upgrade substitutes with AEC-Q200 qualification: KTR03EZPF1604 (Rohm Semiconductor), AC0603FR-071M6L (YAGEO), CRCW06031M60FKEA (Vishay Dale), or RMCF0603FT1M60 (Stackpole Electronics Inc). AC0603FR-071M6L is recommended if moisture resistance is also required. Avoid ERJ-3EKF1604V due to obsolete status despite AEC-Q200 qualification.

Q8: What is the physical dimension tolerance for 0603 package substitution?

A: The 0603 (1608 Metric) package specification permits length variation from 1.55mm to 1.60mm and width variation from 0.80mm to 0.85mm. All substitute parts fall within these tolerances. Height specifications range from 0.50mm to 0.55mm maximum seated height. These minor dimensional variations do not affect PCB assembly compatibility or electrical performance.