KTR03EZPJ430 Equivalent & Substitute Parts

Part Overview

The KTR03EZPJ430 is a 43 Ohm ±5% thick film chip resistor rated at 0.1W (1/10W) in 0603 (1608 Metric) package format, manufactured by Rohm Semiconductor. This component meets Automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently active in production with 842 pieces in stock inventory. Equivalent and substitute parts are necessary when primary sourcing becomes unavailable, when design requirements demand tighter tolerance specifications, or when alternative manufacturers offer superior inventory availability or lead times.

Key Parameters

Parameter	Value
Resistance	43 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
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 logic for the KTR03EZPJ430 is determined by the following critical parameters: resistance value (43 Ohms), power rating (0.1W), package format (0603), composition (thick film), and operating temperature range (-55°C to 155°C). Parts are grouped into two categories based on tolerance specification:

Tolerance-Matched Substitutes (±5%): Parts maintaining the original ±5% tolerance specification are direct functional equivalents. These include CRCW060343R0JNEA (Vishay Dale), ERJ-3GEYJ430V (Panasonic), RC0603JR-0743RL (YAGEO), RMCF0603JT43R0 (Stackpole), and CR0603-JW-430ELF (Bourns). All maintain identical electrical performance within the specified tolerance band.

Upgraded Tolerance Substitutes (±1%): Parts with ±1% tolerance provide tighter resistance accuracy while maintaining all other electrical and mechanical specifications. These include MCR03ERTF43R0 (Rohm), CRCW060343R0JNEA (Vishay Dale), ERJ-3EKF43R0V (Panasonic), RC0603FR-0743RL (YAGEO), and RMCF0603FT43R0 (Stackpole). These parts are suitable for applications requiring improved tolerance performance without design modification.

All substitute parts comply with ROHS3, maintain MSL 1 rating, and operate within the specified temperature range. Automotive AEC-Q200 certification is maintained across all recommended substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Package	Temp Coefficient	Operating Temp	AEC-Q200	Product Status	Inventory
KTR03EZPJ430	Rohm Semiconductor	43 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C ~ 155°C	Yes	Active	842 Pcs
MCR03ERTF43R0	Rohm Semiconductor	43 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued at DiGi Electronics	2240 Pcs
CRCW060343R0JNEA	Vishay Dale	43 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C ~ 155°C	Yes	Active	16573 Pcs
ERJ-3EKF43R0V	Panasonic Electronic Components	43 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	227290 Pcs
ERJ-3GEYJ430V	Panasonic Electronic Components	43 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C ~ 155°C	Yes	Active	213548 Pcs
RC0603FR-0743RL	YAGEO	43 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	511838 Pcs
RC0603JR-0743RL	YAGEO	43 Ω	±5%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	40798 Pcs
RMCF0603FT43R0	Stackpole Electronics Inc	43 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	79112 Pcs
RMCF0603JT43R0	Stackpole Electronics Inc	43 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C ~ 155°C	Yes	Active	19336 Pcs
CR0603-JW-430ELF	Bourns Inc.	43 Ω	±5%	0.1W	0603	±200ppm/°C	-55°C ~ 155°C	No	Active	2292 Pcs

Engineering Selection Recommendations

For direct replacement maintaining original specifications, select from tolerance-matched substitutes with active product status and AEC-Q200 certification: CRCW060343R0JNEA (Vishay Dale, 16573 pcs available), ERJ-3GEYJ430V (Panasonic, 213548 pcs available), or RMCF0603JT43R0 (Stackpole, 19336 pcs available). These parts are production-active and fully qualified for automotive applications.

For applications requiring improved tolerance performance, ERJ-3EKF43R0V (Panasonic, ±1%, 227290 pcs available) or RMCF0603FT43R0 (Stackpole, ±1%, 79112 pcs available) provide tighter resistance accuracy with AEC-Q200 certification and active production status. Both offer substantial inventory availability.

RC0603FR-0743RL (YAGEO, ±1%, 511838 pcs available) provides the highest inventory level among ±1% options but lacks AEC-Q200 certification. This part is suitable for non-automotive applications or where automotive qualification is not required.

MCR03ERTF43R0 (Rohm, ±1%) is discontinued at DiGi Electronics and should not be selected for new designs despite available inventory.

CR0603-JW-430ELF (Bourns, ±5%, 2292 pcs) is production-active but lacks AEC-Q200 certification and offers limited inventory compared to primary alternatives.

Frequently Asked Questions (FAQ)

Q: Can I substitute KTR03EZPJ430 with a ±1% tolerance part?

A: Yes. Parts with ±1% tolerance (MCR03ERTF43R0, ERJ-3EKF43R0V, RC0603FR-0743RL, RMCF0603FT43R0) are electrically compatible substitutes. The tighter tolerance provides improved accuracy without affecting circuit functionality. Verify your design does not depend on the original ±5% tolerance specification.

Q: Are all substitute parts AEC-Q200 qualified?

A: No. AEC-Q200 certification is present on KTR03EZPJ430, MCR03ERTF43R0, CRCW060343R0JNEA, ERJ-3EKF43R0V, ERJ-3GEYJ430V, RMCF0603FT43R0, and RMCF0603JT43R0. RC0603FR-0743RL, RC0603JR-0743RL, and CR0603-JW-430ELF lack this certification. For automotive applications, select only AEC-Q200 qualified parts.

Q: What is the difference between ±200ppm/°C and ±100ppm/°C temperature coefficient?

A: Temperature coefficient defines resistance change per degree Celsius. ±100ppm/°C represents tighter temperature stability than ±200ppm/°C. For applications with wide operating temperature ranges or requiring stable resistance across temperature extremes, ±100ppm/°C parts provide superior performance.

Q: Can I use parts with different packaging dimensions?

A: All listed substitutes use 0603 (1608 Metric) package format with identical footprints. Physical dimensions are equivalent across all parts, ensuring direct PCB compatibility without layout modification.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-0743RL (YAGEO) provides the highest inventory at 511838 pieces. For AEC-Q200 qualified parts, ERJ-3EKF43R0V (Panasonic) offers 227290 pieces, and CRCW060343R0JNEA (Vishay Dale) provides 16573 pieces.

Q: Is MSL 1 rating consistent across all substitutes?

A: Yes. All listed parts maintain MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture protection requirements during storage or handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message