KTR03EZPJ203 Equivalent & Substitute Parts

Part Overview

The KTR03EZPJ203 is a 20 kOhms ±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 Automotive AEC-Q200 qualification with high voltage capability. The part is currently active in production with 1103 pieces in stock.

Substitute parts are necessary when the original KTR03EZPJ203 becomes unavailable, when design requirements demand improved tolerance specifications, or when alternative manufacturers offer equivalent electrical and mechanical performance within the same package footprint.

Key Parameters

Parameter	Value
Resistance	20 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	±200ppm/°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the KTR03EZPJ203 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 20 kOhms (exact match required)
Tolerance: ±5% (exact match required for direct substitution)
Power rating: 0.1W minimum
Package: 0603 (1608 Metric) footprint
Composition: Thick film construction
Operating temperature range: -55°C ~ 155°C minimum
RoHS3 compliance
MSL rating: 1 (Unlimited)

Upgrade Path: Parts with ±1% tolerance are functionally compatible upgrades, as tighter tolerance represents improved performance within the same electrical and mechanical envelope.

Automotive Compliance: Parts with AEC-Q200 rating are direct equivalents. Non-automotive rated parts (lacking AEC-Q200) remain electrically compatible but differ in qualification status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	AEC-Q200	Product Status	Inventory
KTR03EZPJ203	Rohm Semiconductor	20 kOhms	±5%	0.1	±200	Yes	Active	1103 Pcs
KTR03EZPF2002	Rohm Semiconductor	20 kOhms	±1%	0.1	±100	Yes	Active	14041 Pcs
RCG060320K0FKEA	Vishay Dale	20 kOhms	±1%	0.1	±100	No	Active	30424 Pcs
CRCW060320K0JNEA	Vishay Dale	20 kOhms	±5%	0.1	±200	Yes	Active	20200 Pcs
CRCW060320K0JNEB	Vishay Dale	20 kOhms	±5%	0.1	±200	Yes	Discontinued at DiGi Electronics	21083 Pcs
ERJ-3EKF2002V	Panasonic Electronic Components	20 kOhms	±1%	0.1	±100	Yes	Active	626289 Pcs
ERJ-3GEYJ203V	Panasonic Electronic Components	20 kOhms	±5%	0.1	±200	Yes	Active	244924 Pcs
RC0603FR-0720KL	YAGEO	20 kOhms	±1%	0.1	±100	No	Active	2400 Pcs
RC0603JR-0720KL	YAGEO	20 kOhms	±5%	0.1	±100	No	Active	15300 Pcs
RMCF0603FG20K0	Stackpole Electronics Inc	20 kOhms	±1%	0.1	±100	Yes	Active	10449 Pcs
RMCF0603JG20K0	Stackpole Electronics Inc	20 kOhms	±5%	0.1	±100	Yes	Active	44078 Pcs

Engineering Selection Recommendations

Direct Equivalents (±5% Tolerance, AEC-Q200 Rated): CRCW060320K0JNEA, ERJ-3GEYJ203V, and RMCF0603JG20K0 are direct functional equivalents to KTR03EZPJ203. All three maintain ±5% tolerance, AEC-Q200 automotive qualification, and identical electrical performance within the specified operating range. Selection among these three is based on inventory availability and supply chain preference.

Upgrade Options (±1% Tolerance, AEC-Q200 Rated): KTR03EZPF2002, ERJ-3EKF2002V, and RMCF0603FG20K0 provide improved tolerance specification while maintaining AEC-Q200 qualification. These parts are suitable for applications requiring tighter resistance accuracy. Temperature coefficient improves to ±100ppm/°C.

Non-Automotive Alternatives (No AEC-Q200): RCG060320K0FKEA and RC0603FR-0720KL offer ±1% tolerance without automotive qualification. RC0603JR-0720KL provides ±5% tolerance without automotive qualification. These parts are electrically compatible but lack AEC-Q200 certification and are unsuitable for automotive applications.

Discontinued Status: CRCW060320K0JNEB is discontinued at DiGi Electronics but remains in stock. Use only if supply chain continuity is not a concern.

Frequently Asked Questions (FAQ)

Q: Can I substitute KTR03EZPJ203 with a ±1% tolerance part? A: Yes. Parts with ±1% tolerance such as KTR03EZPF2002, ERJ-3EKF2002V, or RMCF0603FG20K0 are functionally compatible upgrades. Tighter tolerance represents improved performance and does not create compatibility issues in circuits designed for ±5% tolerance.

Q: Are all substitute parts AEC-Q200 rated? A: No. RCG060320K0FKEA, RC0603FR-0720KL, and RC0603JR-0720KL lack AEC-Q200 certification. Use AEC-Q200 rated parts (KTR03EZPF2002, CRCW060320K0JNEA, ERJ-3EKF2002V, ERJ-3GEYJ203V, RMCF0603FG20K0, RMCF0603JG20K0) for automotive applications.

Q: Do all substitute parts fit the same PCB footprint? A: Yes. All listed substitutes use the 0603 (1608 Metric) package. Physical dimensions are within acceptable tolerance for standard PCB assembly processes.

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 compared to ±200ppm/°C. For most applications, both are acceptable; however, precision circuits benefit from the lower coefficient.

Q: Which substitute has the highest inventory availability? A: ERJ-3EKF2002V (Panasonic) has 626,289 pieces in stock, providing the most reliable supply continuity.

Q: Can I use RC0603JR-0720KL in an automotive circuit? A: RC0603JR-0720KL lacks AEC-Q200 certification and is not recommended for automotive applications. Use AEC-Q200 rated alternatives instead.

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