RLP73N1JR33FTDF Equivalent & Substitute Parts

Part Overview

The RLP73N1JR33FTDF is a 330 mOhms ±1% thick film chip resistor manufactured by TE Connectivity Passive Product, rated at 0.125W (1/8W) in a 0603 (1608 Metric) package. This component is designed for current sense applications and is classified as Active product status. The part is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this resistor category. Substitutes must preserve the core functional requirements: 330 mOhms resistance value, ±1% tolerance, 0603 package format, thick film composition, and current sense application suitability.

Substiute Parts

RLP73N1JR33FTDF

TE Connectivity Passive ProductIn Stock: 933RLP73N1JR33FTDF Datasheet

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RCWE0603R330FKEA

Vishay DaleIn Stock: 65308RCWE0603R330FKEA Datasheet

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UCR03EVPFLR330

Rohm SemiconductorIn Stock: 6175UCR03EVPFLR330 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RLP73N1JR33FTDF are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 330 mOhms
• Tolerance: ±1%
• Composition: Thick Film
• Application: Current Sense

Mechanical Parameters (Must Match):

• Package format: 0603 (1608 Metric)
• Number of terminations: 2
• Supplier device package: 0603

Environmental & Compliance Parameters (Must Match or Exceed):

• Operating temperature range: -55°C ~ 155°C minimum
• RoHS3 compliance required
• MSL 1 (Unlimited) acceptable

Power Rating Consideration: Substitute parts with equal or higher power ratings (0.125W or greater) are acceptable. The identified substitutes feature 0.2W (1/5W) ratings, which exceed the original specification and provide additional thermal margin.

The two identified substitutes meet all mandatory electrical and mechanical parameters while providing enhanced specifications in power rating and temperature coefficient performance.

Parameter Comparison

Engineering Selection Recommendations

RCWE0603R330FKEA (Vishay Dale): This substitute provides direct functional equivalence with enhanced specifications. The 0.2W power rating offers increased thermal capacity compared to the original 0.125W specification. The temperature coefficient of ±100ppm/°C provides superior stability over the original ±300ppm/°C. Automotive AEC-Q200 qualification and moisture-resistant construction extend the component's reliability envelope. All compliance requirements (RoHS3, MSL 1) are met. This part is suitable for applications requiring higher reliability margins or automotive-grade performance.

UCR03EVPFLR330 (Rohm Semiconductor): This substitute meets all core electrical and mechanical requirements with equivalent 0.2W power rating. The temperature coefficient specification of 0/+150ppm/°C provides improved thermal stability. Automotive AEC-Q200 qualification is included. RoHS3 and MSL 1 compliance are maintained. This part is suitable for applications requiring automotive-grade components with enhanced temperature performance.

Both substitutes are Active products with established supply availability and are directly compatible with the original RLP73N1JR33FTDF in terms of package footprint, electrical function, and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can RCWE0603R330FKEA or UCR03EVPFLR330 be used as direct replacements for RLP73N1JR33FTDF?

A: Yes. Both substitutes maintain identical resistance value (330 mOhms), tolerance (±1%), package format (0603), composition (thick film), and current sense application suitability. All three parts operate across the same temperature range (-55°C ~ 155°C) and meet RoHS3 compliance with MSL 1 rating.

Q: What is the difference in power rating between the original and substitute parts?

A: The RLP73N1JR33FTDF is rated at 0.125W (1/8W), while both RCWE0603R330FKEA and UCR03EVPFLR330 are rated at 0.2W (1/5W). The higher power rating of the substitutes provides additional thermal margin and does not create compatibility issues in applications designed for the original 0.125W specification.

Q: Are there physical size differences between these parts?

A: Minor dimensional variations exist. The RLP73N1JR33FTDF measures 0.063" L x 0.031" W with 0.022" maximum seated height. The RCWE0603R330FKEA measures 0.063" L x 0.033" W with 0.024" maximum seated height. The UCR03EVPFLR330 measures 0.063" L x 0.034" W with 0.024" maximum seated height. All parts conform to the 0603 (1608 Metric) package standard and are compatible with standard PCB footprints designed for this package.

Q: What is the significance of the temperature coefficient differences?

A: The RLP73N1JR33FTDF has a temperature coefficient of ±300ppm/°C. The RCWE0603R330FKEA offers ±100ppm/°C, and the UCR03EVPFLR330 offers 0/+150ppm/°C. Lower temperature coefficients indicate better resistance stability across temperature variations. The substitutes provide improved temperature performance, which is beneficial in precision current sensing applications.

Q: Do the substitute parts have automotive qualification?

A: Yes. Both RCWE0603R330FKEA and UCR03EVPFLR330 carry AEC-Q200 automotive qualification. The original RLP73N1JR33FTDF does not list this qualification. If automotive-grade components are required, the substitutes provide this additional certification.

Q: Are all three parts RoHS3 compliant?

A: Yes. RLP73N1JR33FTDF, RCWE0603R330FKEA, and UCR03EVPFLR330 are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the REACH status for these parts?

A: All three parts (RLP73N1JR33FTDF, RCWE0603R330FKEA, and UCR03EVPFLR330) are REACH Unaffected.