Equivalent & Substitute Parts for RC1608J433CS

Part Overview

The RC1608J433CS is a 43 kOhms ±5% 0.1W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is classified as Active product status with moisture-resistant characteristics and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings align with the original component, enabling direct replacement in circuit applications without functional degradation.

Key Parameters

Parameter	Value
Resistance	43 kOhms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Temperature Coefficient	±100ppm/°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following critical parameters:

Electrical Specifications: Resistance value (43 kOhms), tolerance (±5%), and power rating (0.1W) must match exactly. Temperature coefficient and operating temperature range must be within or equal to the original specification.

Mechanical Compatibility: Package type (0603/1608 Metric), physical dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm), and seated height (0.022" / 0.55mm maximum) must be identical to ensure PCB footprint compatibility.

Environmental & Compliance Requirements: Moisture Sensitivity Level 1, ROHS3 compliance, and REACH unaffected status must be maintained. Additional certifications (such as AEC-Q200 automotive qualification) represent enhanced specifications and do not disqualify substitution.

Composition & Features: Thick film construction is required. Moisture resistance is a feature of the original part; substitute parts may include this feature or additional automotive qualifications without affecting substitutability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Features	Product Status	Packaging Type
RC1608J433CS	Samsung Electro-Mechanics	43 kOhms	±5%	0.1	±100	-55 ~ 155	0603	Moisture Resistant	Active	Cut Tape (CT)
RC0603JR-0743KL	YAGEO	43 kOhms	±5%	0.1	±100	-55 ~ 155	0603	Moisture Resistant	Active	Tape & Reel (TR)
ERJ-3EKF4302V	Panasonic Electronic Components	43 kOhms	±1%	0.1	±100	-55 ~ 155	0603	Automotive AEC-Q200	Active	Tape & Reel (TR)
ERJ-3GEYJ433V	Panasonic Electronic Components	43 kOhms	±5%	0.1	±200	-55 ~ 155	0603	Automotive AEC-Q200	Active	Tape & Reel (TR)
MCR03ERTJ433	Rohm Semiconductor	43 kOhms	±5%	0.1	±200	-55 ~ 155	0603	None Listed	Discontinued at DiGi Electronics	Cut Tape (CT) & Digi-Reel®
RC0603FR-0743KL	YAGEO	43 kOhms	±1%	0.1	±100	-55 ~ 155	0603	Moisture Resistant	Active	Cut Tape (CT) & Digi-Reel®
RMCF0603FT43K0	Stackpole Electronics Inc	43 kOhms	±1%	0.1	±100	-55 ~ 155	0603	Automotive AEC-Q200	Active	Tape & Reel (TR)
RMCF0603JT43K0	Stackpole Electronics Inc	43 kOhms	±5%	0.1	±200	-55 ~ 155	0603	Automotive AEC-Q200	Active	Tape & Reel (TR)
AC0603JR-0743KL	YAGEO	43 kOhms	±5%	0.1	±100	-55 ~ 155	0603	Automotive AEC-Q200, Moisture Resistant	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Equivalent (Identical Specifications): RC0603JR-0743KL (YAGEO) is a direct equivalent with matching resistance, tolerance (±5%), power rating, temperature coefficient (±100ppm/°C), and moisture-resistant features. Both components maintain Active product status and ROHS3 compliance. This part is suitable for one-to-one replacement in applications where the original Samsung component is specified.

Enhanced Tolerance Alternatives (±1% Tolerance): RC0603FR-0743KL (YAGEO) and RMCF0603FT43K0 (Stackpole Electronics Inc) provide improved tolerance specification (±1%) while maintaining identical resistance, power rating, and temperature coefficient (±100ppm/°C). These components are suitable for applications requiring tighter tolerance control. Both are Active status with ROHS3 compliance.

Automotive-Qualified Substitutes (AEC-Q200): ERJ-3EKF4302V (Panasonic), ERJ-3GEYJ433V (Panasonic), RMCF0603JT43K0 (Stackpole Electronics Inc), and AC0603JR-0743KL (YAGEO) include AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability. ERJ-3EKF4302V offers ±1% tolerance with ±100ppm/°C temperature coefficient. ERJ-3GEYJ433V and RMCF0603JT43K0 maintain ±5% tolerance with ±200ppm/°C temperature coefficient. AC0603JR-0743KL combines ±5% tolerance, ±100ppm/°C temperature coefficient, and moisture resistance with AEC-Q200 qualification.

Discontinued Component: MCR03ERTJ433 (Rohm Semiconductor) is marked as Discontinued at DiGi Electronics and should not be selected for new designs or long-term supply requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-0743KL replace RC1608J433CS directly? A: Yes. RC0603JR-0743KL is a direct equivalent with identical electrical specifications (43 kOhms ±5%, 0.1W), matching package dimensions (0603), and equivalent environmental ratings (MSL 1, ROHS3 compliant, moisture resistant). The only difference is packaging format (Tape & Reel versus Cut Tape), which does not affect component functionality.

Q: What is the difference between ±5% and ±1% tolerance parts? A: Tolerance defines the acceptable resistance variation from the nominal 43 kOhm value. ±5% tolerance allows variation between 40.85 kOhms and 45.15 kOhms. ±1% tolerance restricts variation to 42.57 kOhms and 43.43 kOhms. Selection depends on circuit requirements for precision. Parts with ±1% tolerance (RC0603FR-0743KL, RMCF0603FT43K0, ERJ-3EKF4302V) are suitable for applications requiring tighter resistance control.

Q: Are AEC-Q200 qualified parts suitable for non-automotive applications? A: Yes. AEC-Q200 qualification represents enhanced reliability testing and environmental stress screening. Parts meeting this standard (ERJ-3EKF4302V, ERJ-3GEYJ433V, RMCF0603JT43K0, AC0603JR-0743KL) are suitable for any application, including non-automotive circuits. The qualification does not restrict use to automotive applications.

Q: What does Temperature Coefficient ±100ppm/°C versus ±200ppm/°C mean? A: Temperature coefficient indicates resistance change per degree Celsius. ±100ppm/°C means the resistance changes by 0.01% per °C, while ±200ppm/°C means 0.02% per °C. For the 43 kOhm value across the -55°C to 155°C operating range, ±100ppm/°C results in tighter resistance stability. Select ±100ppm/°C parts (RC1608J433CS, RC0603JR-0743KL, RC0603FR-0743KL, RMCF0603FT43K0, AC0603JR-0743KL, ERJ-3EKF4302V) for applications sensitive to temperature-induced resistance drift.

Q: Does packaging format (Cut Tape versus Tape & Reel) affect component performance? A: No. Packaging format affects handling, storage, and assembly processes but does not alter electrical or mechanical performance. Cut Tape (CT) packaging is suitable for manual assembly or small-volume production. Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly. Selection depends on manufacturing process requirements, not circuit functionality.

Q: Can I use MCR03ERTJ433 as a substitute? A: MCR03ERTJ433 is marked as Discontinued at DiGi Electronics and should not be selected for new designs or applications requiring long-term component availability. Use active alternatives such as RC0603JR-0743KL, RMCF0603JT43K0, or other Active status parts listed in this reference.

Q: What does Moisture Sensitivity Level 1 mean? A: MSL 1 indicates unlimited shelf life without moisture exposure controls. The component does not require special dry-pack storage or baking procedures before soldering. All listed substitute parts maintain MSL 1 rating, ensuring equivalent handling requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message