RLP73K1ER75FTDF Equivalent & Substitute Parts

Part Overview

The RLP73K1ER75FTDF is a 750 mOhms ±1% thick film chip resistor manufactured by TE Connectivity Passive Product, rated for 0.125W (1/8W) power dissipation in a 0402 (1005 Metric) package. This component is designed for current sense applications and is actively produced. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate components with equivalent electrical and mechanical specifications.

Substiute Parts

RLP73K1ER75FTDF

TE Connectivity Passive ProductIn Stock: 998RLP73K1ER75FTDF Datasheet

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UCR01MVPFLR750

Rohm SemiconductorIn Stock: 2024UCR01MVPFLR750 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RLP73K1ER75FTDF is permissible with components that maintain identical electrical specifications and mechanical compatibility. The critical parameters governing substitution are:

• Resistance Value: 750 mOhms
• Tolerance: ±1%
• Power Rating: 0.125W (1/8W)
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±200ppm/°C maximum
• Operating Temperature Range: -55°C to 155°C minimum
• Termination Count: 2
• Regulatory Compliance: ROHS3 Compliant

The UCR01MVPFLR750 manufactured by Rohm Semiconductor satisfies all substitution criteria. Both components are active products with identical electrical ratings, package specifications, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the RLP73K1ER75FTDF and UCR01MVPFLR750 are active products with full ROHS3 compliance and identical electrical and mechanical specifications. Selection between these components is based on availability and application requirements.

The UCR01MVPFLR750 carries AEC-Q200 automotive qualification, which provides additional reliability assurance for automotive applications. This qualification is not specified for the RLP73K1ER75FTDF. For non-automotive applications, both components are functionally equivalent.

The temperature coefficient specification for the UCR01MVPFLR750 is 0/+200ppm/°C, which represents a tighter specification than the ±200ppm/°C of the RLP73K1ER75FTDF. This difference does not preclude substitution, as the UCR01MVPFLR750 remains within the acceptable tolerance range for current sense applications.

Frequently Asked Questions (FAQ)

Q: Can the UCR01MVPFLR750 be used as a direct replacement for the RLP73K1ER75FTDF?

A: Yes. Both components share identical resistance values (750 mOhms), tolerance (±1%), power rating (0.125W), package type (0402), composition (thick film), and operating temperature range (-55°C to 155°C). Mechanical dimensions and termination count are equivalent. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference in temperature coefficient between these parts?

A: The RLP73K1ER75FTDF specifies ±200ppm/°C, while the UCR01MVPFLR750 specifies 0/+200ppm/°C. The UCR01MVPFLR750 specification is more restrictive and remains compatible with applications designed for the RLP73K1ER75FTDF.

Q: Are there package compatibility concerns?

A: No. Both components use the 0402 (1005 Metric) package with identical maximum seated height of 0.017" (0.43mm). PCB footprints and assembly processes are compatible.

Q: Does the AEC-Q200 qualification on the UCR01MVPFLR750 affect non-automotive applications?

A: No. AEC-Q200 qualification indicates additional reliability testing and is beneficial for automotive use. For non-automotive applications, this qualification does not impact performance or compatibility.

Q: Are both parts currently available?

A: Yes. Both the RLP73K1ER75FTDF and UCR01MVPFLR750 are listed as active products with current inventory.