CSRN2512FKR270 Equivalent & Substitute Parts

Part Overview

The CSRN2512FKR270 is a 270 mOhms ±1% 2W thick film chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This current sense resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is actively produced and available in high volume. Substitute parts are identified to provide design flexibility, supply chain alternatives, and inventory optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

CSRN2512FKR270

Stackpole Electronics IncIn Stock: 1178CSRN2512FKR270 Datasheet

Current PartRFQ

CSRN2512FTR270

Stackpole Electronics IncIn Stock: 5199CSRN2512FTR270 Datasheet

DirectRFQ

RLP73K3AR27FTDF

TE Connectivity Passive ProductIn Stock: 15770RLP73K3AR27FTDF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CSRN2512FKR270 are qualified based on the following critical parameters:

• Resistance value: 270 mOhms
• Tolerance: ±1%
• Power rating: 2W
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• Environmental compliance: ROHS3 Compliant, MSL 1

All identified substitutes maintain these core electrical and mechanical specifications, ensuring direct compatibility in PCB layouts and circuit designs without modification.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and full ROHS3 compliance with MSL 1 rating. The CSRN2512FTR270 is a direct Stackpole Electronics Inc equivalent with identical electrical and mechanical specifications to the CSRN2512FKR270, differing only in packaging designation (FTR vs FKR tape reel format).

The RLP73K3AR27FTDF from TE Connectivity Passive Product meets all critical electrical parameters and package dimensions. The seated height specification of 0.033" (0.84mm) for the RLP73K3AR27FTDF is 0.005" greater than the CSRN series parts at 0.028" (0.70mm). This height difference must be evaluated for applications with tight vertical clearance constraints or high-density PCB layouts.

Selection between these parts should be based on supply availability, lead time requirements, and specific PCB assembly height constraints.

Frequently Asked Questions (FAQ)

Q: Can CSRN2512FTR270 be used as a direct replacement for CSRN2512FKR270?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications (270 mOhms ±1%, 2W, ±200ppm/°C) and mechanical dimensions. The difference between FKR and FTR designations relates to tape reel packaging format only and does not affect component performance or PCB compatibility.

Q: What is the key difference between the RLP73K3AR27FTDF and the CSRN series?

A: The RLP73K3AR27FTDF is manufactured by TE Connectivity and maintains all critical electrical parameters. The primary difference is the seated height: 0.033" (0.84mm) versus 0.028" (0.70mm) for the CSRN parts. This 0.005" height difference may impact applications with restricted vertical space on the PCB.

Q: Are all three parts suitable for automotive applications?

A: The CSRN2512FKR270 and CSRN2512FTR270 carry AEC-Q200 automotive qualification. The RLP73K3AR27FTDF does not list AEC-Q200 qualification in the provided specifications. For automotive designs requiring AEC-Q200 compliance, the Stackpole CSRN series parts are the appropriate selection.

Q: Do all parts meet the same environmental compliance standards?

A: Yes. All three parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH Unaffected status, ensuring compatibility with modern manufacturing and environmental regulations.

Q: Can these parts be used interchangeably in current sense applications?

A: All three parts are specified for current sense applications with identical resistance values, tolerances, and temperature coefficients. Electrical interchangeability is confirmed. Physical interchangeability depends on PCB layout constraints, particularly the seated height specification for the RLP73K3AR27FTDF.