KTR03EZPJ2R7 Equivalent & Substitute Parts

Part Overview

The KTR03EZPJ2R7 is a 2.7 Ohm ±5% thick film chip resistor manufactured by Rohm Semiconductor, rated for 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is AEC-Q200 automotive qualified and designed for high voltage applications with an operating temperature range of -55°C to 155°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as tolerance upgrades or alternative sourcing options.

Key Parameters

Parameter	Value
Resistance	2.7 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 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

Substitute parts for the KTR03EZPJ2R7 are classified based on electrical and mechanical compatibility within the following criteria:

Upgrade Substitutes maintain identical electrical specifications (2.7 Ohms, 0.1W, 0603 package, AEC-Q200, ±200ppm/°C, -55°C to 155°C) while offering improved tolerance (±1% vs. ±5%) or alternative sourcing from qualified manufacturers. These parts are direct functional replacements with enhanced precision.

Similar Substitutes maintain all core electrical parameters (2.7 Ohms, 0.1W, 0603 package, ±200ppm/°C, -55°C to 155°C) and tolerance matching (±5%) but may originate from different manufacturers or feature alternative certifications (such as current sense capability or moisture resistance). These parts are functionally equivalent for applications where the original tolerance specification is acceptable.

Substitution eligibility is determined by:

Identical resistance value (2.7 Ohms)
Identical or superior tolerance (±5% or better)
Identical power rating (0.1W)
Identical package (0603 / 1608 Metric)
Identical or compatible temperature coefficient (±200ppm/°C)
Identical or overlapping operating temperature range (-55°C to 155°C minimum)
Compliance with automotive standards (AEC-Q200) and RoHS requirements

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	AEC-Q200	RoHS3	Substitution Type
KTR03EZPJ2R7	Rohm Semiconductor	2.7 Ω	±5%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Main Part
KTR03EZPF2R70	Rohm Semiconductor	2.7 Ω	±1%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Upgrade
CRCW06032R70JNEA	Vishay Dale	2.7 Ω	±5%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Upgrade
ERJ-3RQF2R7V	Panasonic Electronic Components	2.7 Ω	±1%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Upgrade
RMCF0603FT2R70	Stackpole Electronics Inc	2.7 Ω	±1%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Upgrade
ERJ-3RQJ2R7V	Panasonic Electronic Components	2.7 Ω	±5%	0.1	0603	±200ppm/°C	-55 to 155°C	Yes	Yes	Similar
RC0603JR-072R7L	YAGEO	2.7 Ω	±5%	0.1	0603	±200ppm/°C	-55 to 155°C	No	Yes	Similar

Engineering Selection Recommendations

All listed substitute parts maintain full compatibility with the KTR03EZPJ2R7 electrical and mechanical specifications. Selection among substitutes should be based on the following criteria:

For Automotive AEC-Q200 Applications: KTR03EZPF2R70 (Rohm), ERJ-3RQF2R7V (Panasonic), and RMCF0603FT2R70 (Stackpole) are qualified upgrade options offering ±1% tolerance with full AEC-Q200 certification. CRCW06032R70JNEA (Vishay Dale) provides equivalent ±5% tolerance with AEC-Q200 qualification.

For Non-Automotive or General Industrial Applications: ERJ-3RQJ2R7V (Panasonic) and RC0603JR-072R7L (YAGEO) are functionally equivalent alternatives with ±5% tolerance. RC0603JR-072R7L does not carry AEC-Q200 certification and is suitable only for applications where automotive qualification is not required.

For Supply Chain Continuity: All substitute parts are currently in active production with substantial inventory availability. RMCF0603FT2R70 offers the highest inventory level (117,878 pcs), followed by ERJ-3RQF2R7V (22,827 pcs) and CRCW06032R70JNEA (13,424 pcs).

For Tolerance-Critical Applications: KTR03EZPF2R70, ERJ-3RQF2R7V, and RMCF0603FT2R70 provide ±1% tolerance, suitable for precision circuit designs requiring tighter resistance control compared to the ±5% specification of the main part.

All substitute parts comply with ROHS3 requirements, maintain MSL 1 (unlimited) moisture sensitivity rating, and operate across the full -55°C to 155°C temperature range with ±200ppm/°C temperature coefficient.

Frequently Asked Questions (FAQ)

Q: Can KTR03EZPF2R70 be used as a direct replacement for KTR03EZPJ2R7?

A: Yes. KTR03EZPF2R70 is a direct upgrade substitute. It maintains identical resistance (2.7 Ohms), power rating (0.1W), package (0603), temperature range (-55°C to 155°C), and AEC-Q200 certification. The primary difference is improved tolerance (±1% vs. ±5%), which provides superior precision without any compatibility concerns.

Q: What is the difference between "Upgrade" and "Similar" substitutes?

A: Upgrade substitutes offer enhanced specifications (typically ±1% tolerance) while maintaining all core electrical and mechanical parameters. Similar substitutes match the original part's tolerance (±5%) and electrical specifications but may originate from different manufacturers or lack specific certifications such as AEC-Q200. Both categories are functionally compatible with the KTR03EZPJ2R7.

Q: Is RC0603JR-072R7L suitable for automotive applications?

A: RC0603JR-072R7L does not carry AEC-Q200 automotive qualification. It is suitable for general industrial and consumer applications where automotive standards are not required. For automotive designs, use KTR03EZPF2R70, ERJ-3RQF2R7V, RMCF0603FT2R70, or CRCW06032R70JNEA.

Q: Do all substitute parts have the same physical dimensions?

A: All substitute parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within industry tolerance: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and maximum seated height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB footprint tolerances and do not affect assembly compatibility.

Q: Which substitute offers the best availability?

A: RMCF0603FT2R70 (Stackpole Electronics Inc) currently has the highest inventory level at 117,878 pieces. ERJ-3RQF2R7V (Panasonic) and CRCW06032R70JNEA (Vishay Dale) also maintain substantial stock levels exceeding 13,000 pieces each.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity rating, matching the environmental compliance profile of the KTR03EZPJ2R7.

Q: What is the temperature coefficient significance for these resistors?

A: All parts, including the main component and substitutes, maintain ±200ppm/°C temperature coefficient across the -55°C to 155°C operating range. This specification ensures consistent resistance stability across the full automotive and industrial temperature spectrum.

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