CF453215-2R7K Equivalent & Substitute Parts

Part Overview

The CF453215-2R7K is a 2.7 µH shielded multilayer inductor manufactured by Bourns Inc., designed for surface mount applications in the 1812 (4532 Metric) package. This component is rated for 370 mA maximum current with a DC resistance of 750mOhm maximum and operates across the temperature range of -55°C to 125°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CF453215-2R7K

Bourns Inc.In Stock: 821CF453215-2R7K Datasheet

Current PartRFQ

CM453232-2R7KL

Bourns Inc.In Stock: 5753CM453232-2R7KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF453215-2R7K is determined by the following critical parameters: inductance value (2.7 µH), tolerance (±10%), current rating (370 mA), DC resistance (750mOhm maximum), package type (1812 / 4532 Metric), and surface mount compatibility. The substitute part CM453232-2R7KL meets all electrical specifications and package requirements. The primary distinction between the main part and the substitute is the core construction type: the CF453215-2R7K uses shielded multilayer construction, while the CM453232-2R7KL employs unshielded drum core wirewound construction. Both components maintain identical inductance, current rating, and DC resistance specifications, ensuring functional equivalence in applications where shielding requirements are not critical.

Parameter Comparison

Engineering Selection Recommendations

The CM453232-2R7KL is an active product with equivalent electrical specifications to the obsolete CF453215-2R7K. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part maintains the same inductance, current rating, DC resistance, and frequency characteristics. Selection between these parts should account for the following factors: the CF453215-2R7K provides shielded construction suitable for noise-sensitive applications, while the CM453232-2R7KL offers unshielded drum core wirewound construction with greater availability as an active product. The CM453232-2R7KL exhibits a maximum seated height of 0.134" (3.40mm) compared to 0.067" (1.70mm) for the CF453215-2R7K, requiring PCB layout verification for space-constrained designs. The operating temperature range of the CF453215-2R7K extends to -55°C, while the CM453232-2R7KL operates from -40°C minimum, which may be a consideration for extreme low-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can CM453232-2R7KL directly replace CF453215-2R7K in all applications?

A: The CM453232-2R7KL matches all critical electrical parameters (inductance, current rating, DC resistance, frequency response) and package footprint of the CF453215-2R7K. However, the substitute uses unshielded construction versus the shielded design of the main part. Applications requiring electromagnetic shielding to prevent interference with adjacent components may require additional circuit design considerations.

Q: What is the primary difference between these two inductors?

A: The CF453215-2R7K uses shielded multilayer construction, while the CM453232-2R7KL employs unshielded drum core wirewound construction. Both achieve identical inductance and current specifications through different core technologies.

Q: Are there physical compatibility concerns with the substitute part?

A: Both parts use the 1812 (4532 Metric) package with identical length and width dimensions (0.177" x 0.126"). The CM453232-2R7KL has a maximum seated height of 0.134" compared to 0.067" for the CF453215-2R7K. PCB clearance and component placement must be verified for designs with height constraints.

Q: What is the temperature operating range difference?

A: The CF453215-2R7K operates from -55°C to 125°C, while the CM453232-2R7KL operates from -40°C to 125°C. For applications requiring operation below -40°C, the CF453215-2R7K is the appropriate selection if available through inventory channels.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the CF453215-2R7K and CM453232-2R7KL are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging formats are available for the substitute part?

A: The CM453232-2R7KL is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.