KTR18EZPJ150 Equivalent & Substitute Parts

Part Overview

The KTR18EZPJ150 is a 15 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 with high voltage capability and operates across -55°C to 155°C. The part is currently active in production with 738 units in stock.

Substitute parts are necessary when the original KTR18EZPJ150 becomes unavailable, when design requirements demand improved tolerance specifications, or when alternative manufacturers' components offer equivalent electrical and mechanical performance within the same package footprint.

Key Parameters

Parameter	Value
Resistance	15 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 for the KTR18EZPJ150 is determined by the following criteria:

Critical Parameters (Must Match):

Resistance value: 15 Ohms
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C to 155°C
RoHS3 compliance
MSL 1 rating

Allowable Variations:

Tolerance: ±5% (original) to ±1% (upgraded tolerance acceptable)
Temperature coefficient: ±200ppm/°C (original) to ±100ppm/°C (improved stability acceptable)
Automotive AEC-Q200 rating: Present in original, optional in substitutes
Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel acceptable
Manufacturer: Any qualified supplier

Substitute parts are grouped into three categories: Upgrade (improved tolerance or temperature coefficient), Direct (equivalent specifications), and Similar (matching core electrical parameters with minor dimensional variations).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Temp Coeff	AEC-Q200	Package	Status
KTR18EZPJ150	Rohm Semiconductor	15Ω	±5%	0.25W	±200ppm/°C	Yes	1206	Active
KTR18EZPF15R0	Rohm Semiconductor	15Ω	±1%	0.25W	±100ppm/°C	Yes	1206	Active
MCR18ERTF15R0	Rohm Semiconductor	15Ω	±1%	0.25W	±100ppm/°C	No	1206	Discontinued
ERJ-8GEYJ150V	Panasonic Electronic Components	15Ω	±5%	0.25W	±200ppm/°C	Yes	1206	Not For New Designs
RMCF1206JT15R0	Stackpole Electronics Inc	15Ω	±5%	0.25W	±200ppm/°C	Yes	1206	Active
CRCW120615R0JNEA	Vishay Dale	15Ω	±5%	0.25W	±200ppm/°C	Yes	1206	Active
CRG1206F15R	TE Connectivity Passive Product	15Ω	±1%	0.25W	±200ppm/°C	No	1206	Active
ERJ-8ENF15R0V	Panasonic Electronic Components	15Ω	±1%	0.25W	±100ppm/°C	Yes	1206	Not For New Designs
RC1206FR-0715RL	YAGEO	15Ω	±1%	0.25W	±100ppm/°C	No	1206	Active
RC1206JR-0715RL	YAGEO	15Ω	±5%	0.25W	±100ppm/°C	No	1206	Active
CR1206-JW-150ELF	Bourns Inc.	15Ω	±5%	0.25W	±200ppm/°C	No	1206	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Specifications): RMCF1206JT15R0 (Stackpole Electronics Inc) and CRCW120615R0JNEA (Vishay Dale) are active production parts with identical electrical specifications, AEC-Q200 automotive rating, and 1206 package. Both maintain ±5% tolerance and ±200ppm/°C temperature coefficient matching the original KTR18EZPJ150.

For Improved Tolerance Applications: KTR18EZPF15R0 (Rohm Semiconductor, same manufacturer) provides ±1% tolerance with ±100ppm/°C temperature coefficient while maintaining AEC-Q200 rating and active production status. This upgrade is suitable when tighter resistance accuracy is required.

ERJ-8ENF15R0V (Panasonic Electronic Components) offers ±1% tolerance with AEC-Q200 rating but carries "Not For New Designs" status, limiting its use to legacy system support or existing inventory applications.

For Non-Automotive Applications: RC1206FR-0715RL (YAGEO) and CRG1206F15R (TE Connectivity) provide ±1% tolerance in active production but lack AEC-Q200 certification. These are suitable for non-automotive circuits where automotive qualification is not required.

Parts to Avoid: MCR18ERTF15R0 and ERJ-8ENF15R0V are discontinued or not recommended for new designs. ERJ-8GEYJ150V carries "Not For New Designs" status.

Frequently Asked Questions (FAQ)

Q: Can I substitute KTR18EZPJ150 with a ±1% tolerance part? A: Yes. Parts with ±1% tolerance (such as KTR18EZPF15R0, CRG1206F15R, or RC1206FR-0715RL) are acceptable substitutes as they provide improved accuracy while maintaining all other critical parameters including 15 Ohm resistance, 0.25W power rating, and 1206 package.

Q: Does the substitute part need AEC-Q200 certification? A: AEC-Q200 certification is present in the original KTR18EZPJ150 but is not mandatory for substitution. However, for automotive applications, selecting parts with AEC-Q200 rating (such as RMCF1206JT15R0 or CRCW120615R0JNEA) is recommended to maintain design consistency and compliance.

Q: Are there dimensional differences between substitute parts? A: All substitute parts use the 1206 (3216 Metric) package with identical footprint. Minor variations in seated height (0.024" to 0.030") do not affect PCB assembly or circuit performance.

Q: Can I use parts marked "Not For New Designs"? A: Parts with "Not For New Designs" status (ERJ-8GEYJ150V, ERJ-8ENF15R0V) should be limited to legacy system maintenance or existing inventory applications. For new designs, select from active production parts such as RMCF1206JT15R0, CRCW120615R0JNEA, or KTR18EZPF15R0.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Both packaging formats contain identical components. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel is suitable for lower-volume or mixed-component orders. Selection depends on procurement and assembly requirements, not electrical performance.

Q: Is temperature coefficient important for my application? A: Temperature coefficient affects resistance stability across the operating range. The original ±200ppm/°C is acceptable for general applications. Upgraded parts with ±100ppm/°C provide better stability in temperature-sensitive circuits. For most standard applications, either specification is functionally equivalent.

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