KTR10EZPJ181 Equivalent & Substitute Parts

Part Overview

The KTR10EZPJ181 is a 180 Ohm ±5% thick film chip resistor manufactured by Rohm Semiconductor in 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and meets Automotive AEC-Q200 specifications with high voltage capability. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit tolerance or feature upgrades within the same electrical and mechanical parameters.

Key Parameters

Parameter	Value
Resistance	180 Ohms
Tolerance	±5%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 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 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Direct Equivalents):

Resistance value: 180 Ohms (exact match required)
Tolerance: ±5% (same tolerance class)
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Operating temperature range: -55°C to 155°C minimum
Composition: Thick Film
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

Secondary Substitution Criteria (Upgrades):

Tolerance upgrade to ±1% (tighter tolerance, same resistance value)
Temperature coefficient improvement (±100ppm/°C vs ±200ppm/°C)
Automotive AEC-Q200 rating maintained or equivalent
Moisture resistance features (additional benefit, not required)

Parts are grouped as direct equivalents when all primary criteria match. Parts with tolerance upgrades (±1%) are classified as upgrades and maintain full electrical and mechanical compatibility while providing improved precision.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	AEC-Q200	Height Max (mm)	Inventory Status
KTR10EZPJ181	Rohm Semiconductor	180Ω	±5%	0.125	±200	Yes	0.65	1038 Pcs
KTR10EZPF1800	Rohm Semiconductor	180Ω	±1%	0.125	±100	Yes	0.65	3951 Pcs
ERJ-6GEYJ181V	Panasonic Electronic Components	180Ω	±5%	0.125	±200	Yes	0.70	79274 Pcs
CRCW0805180RJNEA	Vishay Dale	180Ω	±5%	0.125	±200	Yes	0.50	22329 Pcs
CRG0805F180R	TE Connectivity Passive Product	180Ω	±1%	0.125	±100	No	0.65	19311 Pcs
ERJ-6ENF1800V	Panasonic Electronic Components	180Ω	±1%	0.125	±100	Yes	0.70	3424 Pcs
RC0805FR-07180RL	YAGEO	180Ω	±1%	0.125	±100	No	0.60	87963 Pcs
RC0805JR-07180RL	YAGEO	180Ω	±5%	0.125	±100	No	0.60	667704 Pcs
RMCF0805FT180R	Stackpole Electronics Inc	180Ω	±1%	0.125	±100	Yes	0.65	81541 Pcs
RMCF0805JT180R	Stackpole Electronics Inc	180Ω	±5%	0.125	±100	Yes	0.65	1166976 Pcs
CR0805-JW-181ELF	Bourns Inc.	180Ω	±5%	0.125	±200	No	0.60	43886 Pcs

Engineering Selection Recommendations

Direct Equivalents (±5% Tolerance, AEC-Q200 Rated):

ERJ-6GEYJ181V (Panasonic) and CRCW0805180RJNEA (Vishay Dale) are direct functional equivalents to KTR10EZPJ181. Both maintain identical electrical specifications (180Ω ±5%, 0.125W), operating temperature range (-55°C to 155°C), and AEC-Q200 automotive qualification. These parts are suitable for one-to-one replacement in automotive and high-reliability applications. RMCF0805JT180R (Stackpole) also qualifies as a direct equivalent with AEC-Q200 rating and superior inventory availability (1,166,976 pcs).

Upgrade Options (±1% Tolerance, Improved Temperature Coefficient):

KTR10EZPF1800 (Rohm), ERJ-6ENF1800V (Panasonic), RMCF0805FT180R (Stackpole), RC0805FR-07180RL (YAGEO), and CRG0805F180R (TE Connectivity) provide tolerance upgrades to ±1% with improved temperature coefficient (±100ppm/°C vs ±200ppm/°C). These upgrades maintain full mechanical and thermal compatibility while delivering tighter resistance tolerance. KTR10EZPF1800, ERJ-6ENF1800V, and RMCF0805FT180R retain AEC-Q200 automotive qualification. RC0805FR-07180RL and CRG0805F180R lack automotive certification but are suitable for non-automotive applications requiring precision.

Alternative with ±5% Tolerance (Non-Automotive):

RC0805JR-07180RL (YAGEO) and CR0805-JW-181ELF (Bourns) are ±5% tolerance equivalents without AEC-Q200 rating. These parts are suitable for consumer and industrial applications where automotive qualification is not required. Both offer high inventory availability and moisture-resistant thick film construction.

Frequently Asked Questions (FAQ)

Q: Can I substitute KTR10EZPJ181 with a ±1% tolerance part?

A: Yes. Parts with ±1% tolerance (KTR10EZPF1800, ERJ-6ENF1800V, RMCF0805FT180R, RC0805FR-07180RL, CRG0805F180R) are electrically and mechanically compatible. Tighter tolerance provides improved precision without affecting form factor, thermal performance, or package compatibility. Verify AEC-Q200 requirement for your application before selecting non-automotive-rated alternatives.

Q: What is the difference between AEC-Q200 rated and non-rated parts?

A: AEC-Q200 certification indicates the part meets Automotive Electronics Council reliability and qualification standards for automotive applications. Parts with AEC-Q200 rating (KTR10EZPJ181, ERJ-6GEYJ181V, CRCW0805180RJNEA, ERJ-6ENF1800V, RMCF0805FT180R, RMCF0805JT180R) are qualified for automotive use. Non-rated parts (CRG0805F180R, RC0805FR-07180RL, RC0805JR-07180RL, CR0805-JW-181ELF) are suitable for consumer and industrial applications only.

Q: Are all substitute parts in the same 0805 package?

A: Yes. All listed substitute parts use the 0805 (2012 Metric) package format with identical footprint dimensions (0.079" L × 0.049" W / 2.00mm × 1.25mm). Height variation ranges from 0.50mm to 0.70mm maximum seated height, which is within standard PCB assembly tolerances and does not affect placement or solderability.

Q: Can I use RC0805JR-07180RL as a direct replacement?

A: RC0805JR-07180RL is mechanically and electrically compatible for non-automotive applications. However, it lacks AEC-Q200 certification and has a lower temperature coefficient specification (±100ppm/°C vs ±200ppm/°C). If your design requires automotive qualification, select RMCF0805JT180R or ERJ-6GEYJ181V instead.

Q: What is the significance of temperature coefficient differences?

A: Temperature coefficient (±200ppm/°C vs ±100ppm/°C) indicates resistance change per degree Celsius. Lower values (±100ppm/°C) provide better stability across temperature extremes. For precision analog circuits or wide temperature range applications (-55°C to 155°C), ±1% tolerance parts with ±100ppm/°C coefficient offer superior performance. For general-purpose applications, ±5% tolerance with ±200ppm/°C is acceptable.

Q: Is moisture resistance a critical factor for substitution?

A: Moisture resistance is a secondary feature. All listed parts have MSL 1 (Unlimited) rating, indicating they can be stored indefinitely without moisture baking requirements. Some manufacturers (YAGEO RC series, Bourns CR0805) explicitly feature moisture-resistant thick film construction, providing additional environmental protection. This is beneficial but not required for direct substitution.

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