KTR03EZPJ3R0 Equivalent & Substitute Parts

Part Overview

The KTR03EZPJ3R0 is a 3 Ohm ±5% thick film chip resistor manufactured by Rohm Semiconductor in 0603 (1608 Metric) package format. This component is rated for 0.1W power dissipation and meets AEC-Q200 automotive qualification standards with high voltage capability. The part is currently in active production status with 1,035 units in stock. Equivalent and substitute parts are identified when design requirements allow tolerance relaxation, manufacturer substitution, or when primary sourcing becomes unavailable.

Key Parameters

Parameter	Value
Resistance	3 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the KTR03EZPJ3R0 is determined by the following criteria:

Upgrade Substitutes maintain or improve tolerance specification (±1% tolerance) while preserving all other critical parameters: 3 Ohm resistance value, 0.1W power rating, 0603 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. These parts are direct functional upgrades suitable for applications requiring tighter tolerance control.

Equivalent Substitutes match the original tolerance specification (±5%) and all other electrical and mechanical parameters. These parts differ only in manufacturer or series designation and are suitable for direct replacement without design modification.

Similar Substitutes maintain the same resistance, tolerance, power rating, package, and operating temperature range but may lack specific automotive qualification (AEC-Q200) or feature different moisture resistance characteristics. These parts are compatible for non-automotive applications or where automotive qualification is not mandatory.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Operating Temp	AEC-Q200	RoHS	MSL
KTR03EZPJ3R0	Rohm Semiconductor	3 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	ROHS3	1
KTR03EZPF3R00	Rohm Semiconductor	3 Ω	±1%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	ROHS3	1
RMCF0603FT3R00	Stackpole Electronics Inc	3 Ω	±1%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	ROHS3	1
RMCF0603JT3R00	Stackpole Electronics Inc	3 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	ROHS3	1
CRCW06033R00JNEA	Vishay Dale	3 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	ROHS3	1
RC0603JR-073RL	YAGEO	3 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C to 155°C	No	ROHS3	1

Engineering Selection Recommendations

For Automotive Applications (AEC-Q200 Required): Select from KTR03EZPF3R00, RMCF0603FT3R00, RMCF0603JT3R00, or CRCW06033R00JNEA. All maintain AEC-Q200 qualification and ROHS3 compliance. KTR03EZPF3R00 and RMCF0603FT3R00 provide ±1% tolerance upgrade if circuit design permits tighter tolerance specifications.

For General Industrial Applications: RC0603JR-073RL from YAGEO is suitable when AEC-Q200 automotive qualification is not required. This part maintains all electrical parameters, operating temperature range, and ROHS3 compliance while offering the highest inventory availability (265,443 units).

For Tolerance-Critical Designs: KTR03EZPF3R00 (Rohm Semiconductor, ±1%) or RMCF0603FT3R00 (Stackpole Electronics Inc, ±1%) provide improved tolerance specification while maintaining all other original part characteristics and automotive qualification.

For Direct Equivalent Replacement: RMCF0603JT3R00 or CRCW06033R00JNEA match the original ±5% tolerance specification and are suitable for one-to-one substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can KTR03EZPF3R00 be used as a direct replacement for KTR03EZPJ3R0?

A: Yes. KTR03EZPF3R00 is a direct substitute with improved ±1% tolerance specification. All other parameters including resistance value, power rating, package, operating temperature range, AEC-Q200 qualification, and RoHS compliance are identical. No circuit redesign is required.

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

A: Upgrade substitutes (KTR03EZPF3R00, RMCF0603FT3R00) improve tolerance from ±5% to ±1% while maintaining all other specifications. Equivalent substitutes (RMCF0603JT3R00, CRCW06033R00JNEA) match the original ±5% tolerance and all other parameters exactly, differing only in manufacturer.

Q: Is RC0603JR-073RL suitable for automotive applications?

A: RC0603JR-073RL lacks AEC-Q200 automotive qualification. It is suitable for general industrial and consumer applications where automotive qualification is not required. For automotive designs, use KTR03EZPJ3R0, KTR03EZPF3R00, RMCF0603FT3R00, RMCF0603JT3R00, or CRCW06033R00JNEA.

Q: Are all substitute parts available in 0603 package?

A: Yes. All listed substitute parts are manufactured in 0603 (1608 Metric) package format with identical footprint dimensions and mounting characteristics.

Q: Do all substitutes meet RoHS and MSL requirements?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original KTR03EZPJ3R0 specifications.

Q: What is the temperature coefficient specification for all parts?

A: All parts, including the original and all substitutes, have a temperature coefficient of ±200ppm/°C and operate across the -55°C to 155°C temperature range.

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