TRR03EZPJ433 Equivalent & Substitute Parts

Part Overview

The TRR03EZPJ433 is a 43 kOhms ±5% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This thick film, anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Resistance	43 kOhms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Features	Anti-Sulfur
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the TRR03EZPJ433 is determined by the following critical parameters: resistance value (43 kOhms), power rating (0.1W), package type (0603), operating temperature range (-55°C to 155°C), and RoHS3 compliance. Tolerance and composition may vary within acceptable limits for general applications. The following substitute parts meet these core requirements:

Direct Equivalent (Tolerance Match):

ERJ-S03J433V: Identical tolerance (±5%), thick film composition, active product status

Upgraded Alternatives (Improved Tolerance):

AT0603DRE0743KL: Tighter tolerance (±0.5%), thin film composition, automotive AEC-Q200 rated
ERJ-S03F4302V: Improved tolerance (±1%), thick film composition, automotive AEC-Q200 rated

All substitute parts maintain the same 0603 package, 0.1W power rating, -55°C to 155°C operating range, and ROHS3 compliance.

Parameter Comparison

Parameter	TRR03EZPJ433 (Main)	ERJ-S03J433V	AT0603DRE0743KL	ERJ-S03F4302V
Manufacturer	Rohm Semiconductor	Panasonic Electronic Components	YAGEO	Panasonic Electronic Components
Resistance	43 kOhms	43 kOhms	43 kOhms	43 kOhms
Tolerance	±5%	±5%	±0.5%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W
Package	0603	0603	0603	0603
Composition	Thick Film	Thick Film	Thin Film	Thick Film
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±50ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Features	Anti-Sulfur	Anti-Sulfur, AEC-Q200	Anti-Sulfur, AEC-Q200, Moisture Resistant	Anti-Sulfur, AEC-Q200
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1	1	1	1

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Substitution): ERJ-S03J433V is the primary equivalent, offering identical electrical specifications (43 kOhms ±5%, 0.1W, ±200ppm/°C) with active product status and ROHS3 compliance. This part maintains compatibility with existing designs without parameter modification.

For Enhanced Performance Applications: AT0603DRE0743KL provides superior tolerance (±0.5%) and lower temperature coefficient (±50ppm/°C) with automotive AEC-Q200 qualification. This option is suitable for precision-critical circuits or automotive-grade applications.

For Balanced Upgrade: ERJ-S03F4302V offers improved tolerance (±1%) and automotive AEC-Q200 rating while maintaining thick film composition and ±100ppm/°C temperature coefficient. This represents a middle-ground upgrade path.

All three substitute parts are currently in active production with established supply chains, ensuring long-term availability compared to the obsolete TRR03EZPJ433.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S03J433V directly replace TRR03EZPJ433 without circuit modification? A: Yes. Both parts share identical resistance (43 kOhms), tolerance (±5%), power rating (0.1W), package (0603), temperature range (-55°C to 155°C), and composition (thick film). Direct substitution is electrically compatible.

Q: What is the advantage of AT0603DRE0743KL over the direct equivalent? A: AT0603DRE0743KL provides tighter tolerance (±0.5% vs ±5%) and significantly lower temperature coefficient (±50ppm/°C vs ±200ppm/°C). These improvements benefit precision analog circuits and temperature-sensitive applications. The thin film construction and automotive AEC-Q200 qualification add reliability for demanding environments.

Q: Is ERJ-S03F4302V suitable for automotive applications? A: Yes. ERJ-S03F4302V carries automotive AEC-Q200 qualification, making it appropriate for automotive-grade designs. It also offers improved tolerance (±1%) compared to the original part while maintaining thick film composition.

Q: Are all substitute parts available in the same packaging format? A: Yes. All substitute parts use 0603 (1608 Metric) package with identical footprint dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) and maximum seated height (0.022", 0.55mm). PCB layout compatibility is maintained across all options.

Q: Do all substitute parts meet RoHS3 compliance? A: Yes. TRR03EZPJ433, ERJ-S03J433V, AT0603DRE0743KL, and ERJ-S03F4302V are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part should be selected for cost-sensitive applications? A: ERJ-S03J433V provides the most direct cost-effective replacement, matching all original specifications while offering active product status and established supply availability.

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