CSR0805FT24L0 Equivalent & Substitute Parts

Part Overview

The CSR0805FT24L0 is a 24 mOhms ±1% thick film chip resistor in 0805 (2012 Metric) package rated for 0.25W (1/4W) power dissipation. Designed for current sensing applications, this component operates across -55°C to 155°C with a temperature coefficient of ±200ppm/°C. The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1). Identifying equivalent and substitute parts is necessary when the primary part is unavailable, when higher power ratings are required for thermal margin, or when automotive-grade qualification is mandated by system requirements.

Substiute Parts

CSR0805FT24L0

Stackpole Electronics IncIn Stock: 861CSR0805FT24L0 Datasheet

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ERJ-6BWFR024V

Panasonic Electronic ComponentsIn Stock: 13091ERJ-6BWFR024V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSR0805FT24L0 is determined by strict equivalence in the following parameters: resistance value (24 mOhms), tolerance (±1%), package format (0805), composition (thick film), and application class (current sense). The operating temperature range (-55°C to 155°C) and RoHS3 compliance must be maintained. Power rating may be increased from 0.25W to 0.5W or higher without compromising circuit function, as this provides additional thermal margin. Mechanical dimensions (length, width, height) must remain compatible with 0805 package specifications. Temperature coefficient and MSL rating should remain equivalent or superior to the original specification.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-6BWFR024V from Panasonic Electronic Components qualifies as a direct substitute for the CSR0805FT24L0. Both parts maintain identical resistance, tolerance, package format, and operating temperature specifications. The substitute offers increased power dissipation capability (0.5W versus 0.25W), which provides thermal headroom in current sensing circuits without altering electrical performance. The ERJ-6BWFR024V carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade components. The temperature coefficient specification of 0/+200ppm/°C in the substitute is equivalent to the ±200ppm/°C of the main part. Both parts are ROHS3 compliant with unlimited MSL rating. The maximum seated height difference (0.030" versus 0.026") remains within typical PCB assembly tolerances for 0805 packages. Selection between these parts should be based on availability, cost, and whether automotive qualification is required for the end application.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-6BWFR024V replace the CSR0805FT24L0 in existing designs? A: Yes. Both parts share identical resistance (24 mOhms), tolerance (±1%), package (0805), and operating temperature range (-55°C to 155°C). The substitute's higher power rating (0.5W) is compatible with circuits designed for the 0.25W part.

Q: What is the significance of the power rating difference? A: The substitute's 0.5W rating provides additional thermal margin in current sensing applications. This does not affect circuit function but allows the component to dissipate more heat without exceeding maximum junction temperature.

Q: Does the height difference between parts affect PCB assembly? A: The height difference (0.026" main part versus 0.030" substitute) is within standard 0805 package tolerances and does not impact PCB assembly, reflow soldering, or component placement.

Q: Is AEC-Q200 qualification required for this application? A: AEC-Q200 qualification is required only if the end application is automotive or subject to automotive reliability standards. For non-automotive applications, both parts are functionally equivalent.

Q: Are both parts RoHS3 compliant? A: Yes. Both the CSR0805FT24L0 and ERJ-6BWFR024V are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: What determines substitutability for 0805 current sense resistors? A: Substitutability is determined by matching resistance value, tolerance, package format, composition (thick film), operating temperature range, and application class (current sense). Power rating may be increased without compromising compatibility.