KTR18EZPJ2R2 Equivalent & Substitute Parts

Part Overview

The KTR18EZPJ2R2 is a 2.2 Ohm ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Rohm Semiconductor. This component is rated for automotive applications under AEC-Q200 standard and features high voltage capability. The part is currently active in production with 701 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements such as tolerance upgrades or alternative packaging formats.

Key Parameters

Parameter	Value
Resistance	2.2 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package	1206 (3216 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 is determined by strict alignment with the following electrical and mechanical parameters: resistance value (2.2 Ohms), package type (1206), composition (thick film), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, REACH Unaffected). Parts are grouped into three categories:

Direct Substitutes maintain identical specifications: 2.2 Ohms ±5%, 0.25W power rating, 1206 package, AEC-Q200 automotive rating, and ±200ppm/°C temperature coefficient. These parts are functionally interchangeable without circuit redesign.

Upgrade Substitutes improve tolerance from ±5% to ±1% while maintaining all other electrical and mechanical parameters. These parts provide enhanced precision for applications requiring tighter resistance tolerances.

Similar Substitutes share core electrical specifications but differ in secondary features such as moisture resistance, pulse withstanding capability, or power rating (0.5W instead of 0.25W). These parts are compatible with the 1206 package footprint and operating temperature range but may require application-level verification for feature compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	AEC-Q200	Features	Inventory
KTR18EZPJ2R2	Rohm Semiconductor	2.2 Ω	±5%	0.25	1206	±200ppm/°C	Yes	High Voltage	701
ERJ-8RQJ2R2V	Panasonic Electronic Components	2.2 Ω	±5%	0.25	1206	±200ppm/°C	Yes	Current Sense	10608
RCG12062R20JNEA	Vishay Dale	2.2 Ω	±5%	0.25	1206	±200ppm/°C	No	—	5142
RMCF1206JT2R20	Stackpole Electronics Inc	2.2 Ω	±5%	0.25	1206	±200ppm/°C	Yes	—	29745
ERJ-8RQF2R2V	Panasonic Electronic Components	2.2 Ω	±1%	0.25	1206	±200ppm/°C	Yes	Current Sense	5795
RC1206FR-072R2L	YAGEO	2.2 Ω	±1%	0.25	1206	±200ppm/°C	No	Moisture Resistant	265130
RMCF1206FT2R20	Stackpole Electronics Inc	2.2 Ω	±1%	0.25	1206	±200ppm/°C	Yes	—	8169
AC1206JR-072R2L	YAGEO	2.2 Ω	±5%	0.25	1206	±200ppm/°C	Yes	Moisture Resistant	7855
CRCW12062R20JNEAIF	Vishay Dale	2.2 Ω	±5%	0.25	1206	±200ppm/°C	Yes	Pulse Withstanding	19790
CRM1206-JW-2R2ELF	Bourns Inc.	2.2 Ω	±5%	0.5	1206	±200ppm/°C	No	Current Sense	22985
RC1206JR-072R2L	YAGEO	2.2 Ω	±5%	0.25	1206	±200ppm/°C	No	Moisture Resistant	25200

Engineering Selection Recommendations

For Direct Substitution (Identical Specifications): Select ERJ-8RQJ2R2V (Panasonic), RMCF1206JT2R20 (Stackpole), or AC1206JR-072R2L (YAGEO). All three maintain 2.2 Ohms ±5%, 0.25W, 1206 package, and AEC-Q200 automotive compliance. RMCF1206JT2R20 offers the highest inventory availability at 29,745 pieces. ERJ-8RQJ2R2V provides current sense capability if required by the application.

For Tolerance Upgrade (±1% Precision): Select ERJ-8RQF2R2V (Panasonic) or RMCF1206FT2R20 (Stackpole) for AEC-Q200 rated applications. Both maintain automotive compliance while improving tolerance to ±1%. RC1206FR-072R2L (YAGEO) offers ±1% tolerance with moisture resistance but lacks AEC-Q200 rating. RC1206FR-072R2L has the largest inventory at 265,130 pieces for non-automotive applications.

For Automotive Applications: Prioritize parts with AEC-Q200 certification: KTR18EZPJ2R2 (Rohm), ERJ-8RQJ2R2V (Panasonic), RMCF1206JT2R20 (Stackpole), ERJ-8RQF2R2V (Panasonic), RMCF1206FT2R20 (Stackpole), AC1206JR-072R2L (YAGEO), and CRCW12062R20JNEAIF (Vishay Dale).

For Higher Power Dissipation: CRM1206-JW-2R2ELF (Bourns) provides 0.5W rating in the same 1206 package, suitable for applications requiring increased power handling. This part lacks AEC-Q200 rating and is not suitable for automotive applications.

For Moisture-Sensitive Environments: AC1206JR-072R2L, RC1206FR-072R2L, and RC1206JR-072R2L all feature moisture resistance. All three maintain MSL 1 rating and are suitable for humid or high-moisture applications.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a substitute for the ±5% KTR18EZPJ2R2?

A: Yes. A ±1% tolerance part is a direct upgrade and will function in any circuit designed for ±5% tolerance. The tighter tolerance provides improved precision without affecting electrical performance or package compatibility.

Q: Is the RCG12062R20JNEA from Vishay Dale a suitable substitute?

A: RCG12062R20JNEA matches all electrical specifications (2.2 Ohms ±5%, 0.25W, 1206 package, ±200ppm/°C) and is ROHS3 compliant. However, it lacks AEC-Q200 automotive certification. Use this part only in non-automotive applications or where automotive qualification is not required.

Q: Can I use CRM1206-JW-2R2ELF (0.5W) instead of the 0.25W KTR18EZPJ2R2?

A: CRM1206-JW-2R2ELF is mechanically compatible (1206 package) and electrically equivalent (2.2 Ohms ±5%). The higher power rating (0.5W vs 0.25W) provides additional thermal margin but does not affect circuit operation. Verify that the application does not require AEC-Q200 certification, as this part is not automotive rated.

Q: What is the difference between "High Voltage" (KTR18EZPJ2R2) and "Current Sense" (ERJ-8RQJ2R2V) features?

A: Both features are secondary characteristics that do not affect the core electrical parameters (resistance, tolerance, power rating, package). High Voltage indicates optimized performance for high-voltage applications. Current Sense indicates optimized performance for current measurement circuits. Both parts are electrically interchangeable for standard 2.2 Ohm resistor applications.

Q: Which substitute part has the best inventory availability?

A: RC1206FR-072R2L (YAGEO) has the highest inventory at 265,130 pieces. For AEC-Q200 automotive applications, RMCF1206JT2R20 (Stackpole) offers the best availability at 29,745 pieces.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the KTR18EZPJ2R2.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All substitute parts share identical electrical specifications, package dimensions, and operating temperature ranges. Mixing manufacturers is acceptable from an electrical and mechanical standpoint. Verify that your procurement and quality assurance processes support multiple suppliers if required.

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