RC1608J244CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608J244CS is a 240 kOhms ±5% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with 1113 pieces currently in stock. The part is ROHS3 compliant and moisture resistant, suitable for general-purpose applications requiring standard tolerance resistive elements. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Value	Specification Type
Resistance Value	240 kOhms	Electrical
Tolerance	±5%	Electrical
Power Rating	0.1W (1/10W)	Electrical
Package / Case	0603 (1608 Metric)	Mechanical
Composition	Thick Film	Material
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C ~ 155°C	Environmental
Moisture Sensitivity Level	1 (Unlimited)	Environmental
RoHS Status	ROHS3 Compliant	Compliance

Substitute Part Grouping Explanation

Substitute parts for the RC1608J244CS are classified into two functional categories based on tolerance specification:

Direct Equivalents (±5% Tolerance): Parts maintaining identical tolerance specification of ±5% with matching 240 kOhms resistance, 0.1W power rating, and 0603 package. These parts provide one-to-one functional replacement without circuit performance modification.

Upgraded Alternatives (±1% Tolerance): Parts with improved tolerance specification of ±1% while maintaining all other critical parameters including 240 kOhms resistance, 0.1W power rating, and 0603 package. These parts offer enhanced accuracy for applications requiring tighter resistance tolerances.

Key Parameters Determining Substitution Eligibility:

Resistance value: 240 kOhms (mandatory match)
Power rating: 0.1W (mandatory match)
Package type: 0603 (1608 Metric) (mandatory match)
Composition: Thick Film (mandatory match)
Operating temperature range: -55°C ~ 155°C (mandatory match)
RoHS compliance: ROHS3 (mandatory match)
Moisture Sensitivity Level: 1 (mandatory match)

Temperature coefficient and tolerance variations are permitted within the substitute categories as specified above.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Features	Product Status	Packaging
RC1608J244CS	Samsung Electro-Mechanics	240 kOhms	±5%	0.1	±100	-55 ~ 155	Moisture Resistant	Active	Cut Tape (CT)
RC0603JR-07240KL	YAGEO	240 kOhms	±5%	0.1	±100	-55 ~ 155	Moisture Resistant	Active	Tape & Reel (TR)
ERJ-3EKF2403V	Panasonic Electronic Components	240 kOhms	±1%	0.1	±100	-55 ~ 155	Automotive AEC-Q200	Active	Tape & Reel (TR)
ERJ-3GEYJ244V	Panasonic Electronic Components	240 kOhms	±5%	0.1	±200	-55 ~ 155	Automotive AEC-Q200	Active	Tape & Reel (TR)
KTR03EZPF2403	Rohm Semiconductor	240 kOhms	±1%	0.1	±100	-55 ~ 155	Automotive AEC-Q200, High Voltage	Active	Tape & Reel (TR)
MCR03ERTJ244	Rohm Semiconductor	240 kOhms	±5%	0.1	±200	-55 ~ 155	Standard	Discontinued at DiGi Electronics	Cut Tape (CT) & Digi-Reel®
RC0603FR-07240KL	YAGEO	240 kOhms	±1%	0.1	±100	-55 ~ 155	Moisture Resistant	Active	Tape & Reel (TR)
RMCF0603FT240K	Stackpole Electronics Inc	240 kOhms	±1%	0.1	±100	-55 ~ 155	Automotive AEC-Q200	Active	Tape & Reel (TR)
RMCF0603JT240K	Stackpole Electronics Inc	240 kOhms	±5%	0.1	±200	-55 ~ 155	Automotive AEC-Q200	Active	Tape & Reel (TR)

Engineering Selection Recommendations

For Direct Replacement (±5% Tolerance Requirement):

RC0603JR-07240KL (YAGEO) is the primary direct equivalent, offering identical electrical specifications with Active product status and moisture-resistant composition. This part is available in Tape & Reel packaging with 181,978 pieces in stock, providing supply continuity.

ERJ-3GEYJ244V (Panasonic Electronic Components) serves as an alternative direct equivalent with Automotive AEC-Q200 certification. This part maintains ±5% tolerance and is available in high volume (1,056,114 pieces), suitable for applications requiring automotive-grade reliability.

RMCF0603JT240K (Stackpole Electronics Inc) provides direct equivalence with Automotive AEC-Q200 certification and Active product status. This option is appropriate for automotive or industrial applications requiring enhanced reliability standards.

MCR03ERTJ244 (Rohm Semiconductor) is not recommended for new designs due to Discontinued at DiGi Electronics status, though limited inventory (797 pieces) remains available.

For Upgraded Performance (±1% Tolerance Requirement):

RC0603FR-07240KL (YAGEO) offers improved tolerance specification of ±1% with moisture-resistant features and Active product status. This part provides 253,255 pieces in stock and is suitable for applications requiring enhanced accuracy.

ERJ-3EKF2403V (Panasonic Electronic Components) delivers ±1% tolerance with Automotive AEC-Q200 certification and 107,155 pieces available. This part is appropriate for automotive applications requiring tighter tolerance specifications.

KTR03EZPF2403 (Rohm Semiconductor) combines ±1% tolerance with Automotive AEC-Q200 and High Voltage features. This part is suitable for automotive or high-voltage applications requiring enhanced accuracy and reliability.

RMCF0603FT240K (Stackpole Electronics Inc) provides ±1% tolerance with Automotive AEC-Q200 certification and 210,567 pieces in stock. This option is appropriate for automotive applications requiring improved tolerance performance.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with environmental and regulatory requirements matching the original RC1608J244CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-07240KL directly replace RC1608J244CS in existing designs?

A: Yes. RC0603JR-07240KL maintains identical electrical specifications (240 kOhms ±5%, 0.1W), mechanical package (0603), composition (thick film), and environmental ratings (-55°C ~ 155°C). The primary difference is packaging format (Tape & Reel versus Cut Tape) and manufacturer (YAGEO versus Samsung Electro-Mechanics). Circuit performance remains unchanged.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance specification defines the maximum allowable deviation from the nominal resistance value. RC1608J244CS with ±5% tolerance permits resistance values between 228 kOhms and 252 kOhms. Upgraded ±1% tolerance parts (RC0603FR-07240KL, ERJ-3EKF2403V, KTR03EZPF2403, RMCF0603FT240K) permit values between 237.6 kOhms and 242.4 kOhms, providing enhanced accuracy for precision circuit applications. Selection depends on circuit design requirements.

Q: Are Automotive AEC-Q200 certified parts suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates enhanced reliability testing and quality standards exceeding general-purpose component requirements. These parts (ERJ-3GEYJ244V, KTR03EZPF2403, RMCF0603FT240K, RMCF0603JT240K) are fully compatible with non-automotive applications and provide superior reliability margins.

Q: What is the significance of Moisture Sensitivity Level 1?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component requires no special moisture protection during storage, handling, or assembly. Both the original RC1608J244CS and moisture-resistant substitute parts (RC0603JR-07240KL, RC0603FR-07240KL) share this classification, eliminating moisture management concerns during manufacturing processes.

Q: Does packaging format (Cut Tape versus Tape & Reel) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Cut Tape (CT) and Tape & Reel (TR) formats contain identical components with identical electrical specifications. Selection depends on manufacturing equipment compatibility and supply chain requirements, not circuit performance.

Q: Why is MCR03ERTJ244 marked as Discontinued at DiGi Electronics?

A: MCR03ERTJ244 is discontinued at DiGi Electronics distribution channel, though limited inventory (797 pieces) remains available. For new designs and long-term supply assurance, selection of Active status parts (RC0603JR-07240KL, ERJ-3GEYJ244V, KTR03EZPF2403, RC0603FR-07240KL, RMCF0603FT240K, RMCF0603JT240K) is recommended.

Q: What is the temperature coefficient specification and its importance?

A: Temperature coefficient (±100ppm/°C or ±200ppm/°C) defines resistance value change per degree Celsius temperature variation. RC1608J244CS specifies ±100ppm/°C. Substitute parts with ±100ppm/°C (RC0603JR-07240KL, ERJ-3EKF2403V, KTR03EZPF2403, RC0603FR-07240KL, RMCF0603FT240K) provide identical temperature stability. Parts with ±200ppm/°C (ERJ-3GEYJ244V, MCR03ERTJ244, RMCF0603JT240K) exhibit twice the temperature-induced resistance variation. Selection depends on circuit temperature compensation requirements.

Q: Are all substitute parts available in equivalent quantities?

A: No. Inventory levels vary significantly. RC0603JR-07240KL (181,978 pieces), ERJ-3GEYJ244V (1,056,114 pieces), and RMCF0603FT240K (210,567 pieces) offer substantial availability. KTR03EZPF2403 (2,960 pieces) and RMCF0603JT240K (1,221 pieces) have limited inventory. Supply planning should account for these variations.

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