KTR10EZPJ430 Equivalent & Substitute Parts

Part Overview

The KTR10EZPJ430 is a 43 Ohm ±5% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Rohm Semiconductor. This automotive-grade component meets AEC-Q200 qualification and is designed for high-voltage applications. The part is currently active in production with 1103 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when packaging requirements differ, or when enhanced tolerance specifications are required for circuit performance.

Key Parameters

Parameter	Value
Resistance	43 Ohms
Tolerance	±5%
Power Rating	0.125W (1/8W)
Package	0805 (2012 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	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the KTR10EZPJ430 is determined by the following criteria:

Direct Substitutes (Identical Electrical & Mechanical Specifications): Parts with 43 Ohms resistance, ±5% tolerance, 0.125W power rating, 0805 package, -55°C to 155°C operating range, and thick film composition are direct substitutes. Packaging format (Tape & Reel or Cut Tape) does not affect electrical compatibility.

Upgrade Substitutes (Enhanced Tolerance): Parts with 43 Ohms resistance, ±1% tolerance (tighter than ±5%), 0.125W power rating, 0805 package, and -55°C to 155°C operating range provide improved accuracy. These parts have ±100ppm/°C temperature coefficient versus ±200ppm/°C in the original part, resulting in better stability across temperature extremes.

Automotive Compliance Consideration: Parts with AEC-Q200 certification maintain automotive-grade reliability. Parts without this certification are functionally equivalent but lack automotive qualification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
KTR10EZPJ430	Rohm Semiconductor	43 Ω	±5%	0.125	0805	±200ppm/°C	-55 to 155°C	Yes	Active	1103
MCR10ERTJ430	Rohm Semiconductor	43 Ω	±5%	0.125	0805	±200ppm/°C	-55 to 155°C	No	Discontinued	5255
MCR10ERTF43R0	Rohm Semiconductor	43 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	No	Discontinued	2390
ERJ-6GEYJ430V	Panasonic Electronic Components	43 Ω	±5%	0.125	0805	±200ppm/°C	-55 to 155°C	Yes	Active	22639
ERJ-6ENF43R0V	Panasonic Electronic Components	43 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	Active	53023
RC0805FR-0743RL	YAGEO	43 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	No	Active	1197
RC0805JR-0743RL	YAGEO	43 Ω	±5%	0.125	0805	±100ppm/°C	-55 to 155°C	No	Active	5342
RMCF0805FT43R0	Stackpole Electronics Inc	43 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	Active	917
RMCF0805JT43R0	Stackpole Electronics Inc	43 Ω	±5%	0.125	0805	±200ppm/°C	-55 to 155°C	Yes	Active	4363
CR0805-JW-430ELF	Bourns Inc.	43 Ω	±5%	0.125	0805	±200ppm/°C	-55 to 155°C	No	Active	25789

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MCR10ERTJ430 (Rohm), ERJ-6GEYJ430V (Panasonic), RMCF0805JT43R0 (Stackpole), and CR0805-JW-430ELF (Bourns) provide electrical and mechanical equivalence to the KTR10EZPJ430. All maintain 43 Ohms ±5% tolerance, 0.125W power rating, and -55°C to 155°C operating range. ERJ-6GEYJ430V and RMCF0805JT43R0 retain AEC-Q200 automotive qualification matching the original part.

For Improved Tolerance Applications: MCR10ERTF43R0, ERJ-6ENF43R0V, RC0805FR-0743RL, and RMCF0805FT43R0 offer ±1% tolerance with ±100ppm/°C temperature coefficient. These upgrades provide superior accuracy and thermal stability. ERJ-6ENF43R0V and RMCF0805FT43R0 maintain AEC-Q200 certification for automotive applications.

Availability Considerations: ERJ-6GEYJ430V (22639 units) and CR0805-JW-430ELF (25789 units) offer highest inventory levels. ERJ-6ENF43R0V (53023 units) provides maximum stock for upgraded tolerance applications.

Automotive Applications: When AEC-Q200 compliance is required, select from: KTR10EZPJ430, ERJ-6GEYJ430V, ERJ-6ENF43R0V, RMCF0805FT43R0, or RMCF0805JT43R0.

Frequently Asked Questions (FAQ)

Q: Can I use RC0805JR-0743RL as a direct replacement for KTR10EZPJ430? A: Yes, electrically and mechanically. Both are 43 Ohms ±5%, 0.125W, 0805 package with -55°C to 155°C operating range. RC0805JR-0743RL has ±100ppm/°C temperature coefficient versus ±200ppm/°C in the original, providing better thermal stability. The primary difference is RC0805JR-0743RL lacks AEC-Q200 automotive certification.

Q: What is the difference between ±5% and ±1% tolerance parts? A: Tolerance defines the maximum deviation from the nominal 43 Ohm value. ±5% allows 40.85 to 45.15 Ohms; ±1% allows 42.57 to 43.43 Ohms. Applications requiring tighter resistance control should use ±1% parts. Temperature coefficient also improves from ±200ppm/°C to ±100ppm/°C in ±1% variants.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect compatibility? A: No. Tape & Reel and Cut Tape packaging formats contain identical components. Selection depends on assembly equipment and volume requirements, not electrical performance.

Q: Which substitute offers the best availability? A: ERJ-6ENF43R0V (Panasonic) with 53023 units in stock provides maximum availability. For direct ±5% tolerance match, CR0805-JW-430ELF (Bourns) offers 25789 units.

Q: Can I use a non-AEC-Q200 part in an automotive circuit? A: Functionally, yes. However, automotive applications typically require AEC-Q200 certification for reliability assurance. Use AEC-Q200 qualified parts (KTR10EZPJ430, ERJ-6GEYJ430V, ERJ-6ENF43R0V, RMCF0805FT43R0, RMCF0805JT43R0) for automotive designs.

Q: What does ±200ppm/°C temperature coefficient mean? A: It indicates the resistance changes by 200 parts per million per degree Celsius. At 100°C temperature change, a 43 Ohm resistor with ±200ppm/°C will shift approximately ±0.86 Ohms. Lower coefficients (±100ppm/°C) provide better stability across temperature extremes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message