CSRF2512FK100L Equivalent & Substitute Parts

Part Overview

The CSRF2512FK100L is a 100 mOhms ±1% 2W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This metal foil composition resistor is designed for automotive applications with AEC-Q200 qualification and current sense functionality. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning.

Substiute Parts

CSRF2512FK100L

Stackpole Electronics IncIn Stock: 1133CSRF2512FK100L Datasheet

Current PartRFQ

CSRF2512FTR100

Stackpole Electronics IncIn Stock: 13113CSRF2512FTR100 Datasheet

DirectRFQ

CSR2512FKR100

Stackpole Electronics IncIn Stock: 804CSR2512FKR100 Datasheet

MFR RecommendedRFQ

PE2512FKE7W0R1L

YAGEOIn Stock: 809PE2512FKE7W0R1L Datasheet

DirectRFQ

CRA2512-FZ-R100ELF

Bourns Inc.In Stock: 148739CRA2512-FZ-R100ELF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CSRF2512FK100L is determined by the following critical parameters:

• Electrical Match: Resistance value (100 mOhms), tolerance (±1%), and power rating (minimum 2W)
• Package Compatibility: 2512 (6432 Metric) footprint required for PCB layout compatibility
• Environmental Compliance: AEC-Q200 automotive qualification and ROHS3 compliance
• Thermal Performance: Operating temperature range of -55°C ~ 170°C and temperature coefficient stability

Substitute parts are grouped into two categories:

Category 1 - Direct Equivalents (Metal Foil/Metal Film Composition)

• CSRF2512FTR100 (Stackpole, Metal Foil, 2W, Active status)
• PE2512FKE7W0R1L (YAGEO, Metal Film, 2W, Active status)

Category 2 - Functional Equivalent with Composition Variation

• CSR2512FKR100 (Stackpole, Thick Film, 2W, Active status)

Category 3 - Higher Power Rating Alternative

• CRA2512-FZ-R100ELF (Bourns, Metal Element, 3W, Active status)

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement)

CSRF2512FTR100 and PE2512FKE7W0R1L are the preferred substitutes for CSRF2512FK100L. Both maintain identical electrical specifications (100 mOhms, ±1%, 2W), identical operating temperature range (-55°C ~ 170°C), and AEC-Q200 automotive qualification. CSRF2512FTR100 is manufactured by the same supplier (Stackpole Electronics Inc) with metal foil composition matching the original part. PE2512FKE7W0R1L from YAGEO provides metal film composition with equivalent performance characteristics and maintains all automotive compliance requirements.

Secondary Substitute (Composition Variation)

CSR2512FKR100 is functionally equivalent in resistance, tolerance, and power rating but uses thick film composition with a higher temperature coefficient (±200ppm/°C versus ±50ppm/°C). This part does not carry AEC-Q200 qualification. Selection of this substitute requires design review to confirm that the increased temperature coefficient and absence of automotive qualification are acceptable for the application.

Higher Power Alternative

CRA2512-FZ-R100ELF from Bourns Inc. provides a 3W power rating in the same 2512 package with metal element composition. This part maintains AEC-Q200 qualification, ±50ppm/°C temperature coefficient, and -55°C ~ 170°C operating range. The increased power rating provides thermal margin but may introduce different thermal characteristics in the circuit.

Frequently Asked Questions (FAQ)

Q: Can CSRF2512FTR100 be used as a direct replacement for CSRF2512FK100L?

A: Yes. CSRF2512FTR100 is a direct equivalent manufactured by Stackpole Electronics Inc with identical electrical specifications (100 mOhms ±1% 2W), composition (metal foil), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 170°C), and AEC-Q200 automotive qualification. The primary difference is product status (active versus obsolete) and packaging format (Tape & Reel versus cut tape).

Q: What is the difference between CSRF2512FTR100 and PE2512FKE7W0R1L?

A: Both parts meet the electrical and thermal requirements of the original CSRF2512FK100L. The primary differences are manufacturer (Stackpole versus YAGEO) and composition (metal foil versus metal film). Both maintain ±50ppm/°C temperature coefficient, -55°C ~ 170°C operating range, and AEC-Q200 qualification. Selection between these parts depends on supplier availability and design qualification history.

Q: Why is CSR2512FKR100 listed as a substitute if it lacks AEC-Q200 qualification?

A: CSR2512FKR100 meets the core electrical requirements (100 mOhms ±1% 2W in 2512 package) but uses thick film composition with ±200ppm/°C temperature coefficient and operates to 155°C maximum. This part is suitable only for applications where automotive qualification is not required or where the higher temperature coefficient is acceptable. Design review is mandatory before selection.

Q: Can CRA2512-FZ-R100ELF be used in place of CSRF2512FK100L?

A: CRA2512-FZ-R100ELF is mechanically and electrically compatible with identical resistance, tolerance, temperature coefficient, and operating temperature range. The 3W power rating provides additional thermal capacity. However, the increased power rating may alter thermal distribution in the circuit. Thermal analysis is recommended to confirm suitability for the specific application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (CSRF2512FTR100, CSR2512FKR100, PE2512FKE7W0R1L, and CRA2512-FZ-R100ELF) are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the environmental compliance of the original CSRF2512FK100L.

Q: What packaging formats are available for these substitutes?

A: CSRF2512FTR100 and PE2512FKE7W0R1L are supplied in Tape & Reel (TR) format. CSR2512FKR100 is supplied in Tape & Reel (TR) format. CRA2512-FZ-R100ELF is supplied in Cut Tape (CT) & Digi-Reel format. Confirm packaging compatibility with assembly requirements before procurement.