Ferrite Cores

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B65815E0250A041

Product Status	Production
Core shape	RM(RM)
Feature	GeneralFor general purpose TelecomFor Telecommunication
Material Name	Mn-Zn
Ferrite Material	N41
Brand	TDK
Environmental Compliance Click to learn more about these icons

Ferrite Cores B65815E

Images are for reference only and show example products.

Size

Size (IEC 62317) AxBxC	RM 12
Detail Size Information	Please refer to the data sheet

Electrical Characteristics

Core Factor	0.39mm⁻¹
Effective Cross-Sectional Area	146mm²
Effective Magnetic Path Length	57mm
Effective Core Volume	8320mm³
AL Value / (nH / N²)	250 ±3%
Core Loss / (W / set) [Max.]
Air Gap	0.70mm Nom.
Weight	45g

Electrical Characteristics (Material)

Initial Permeability μi	2800 Nom.
Saturation Magnetic Flux Density Bs / mT	390 (100°C)
Curie Temperature Tc [Min.]	220°C
Core Loss / (kW / m³) [Max.]	1400

Distributor Stock Info

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Part Number: B65815E0250A041

Part Number	Distributor	Buy from Distributor	Stock Quantity	Country	Info Last Updated
B65815E0250A041	RS Click to know about this distributor	Buy Now	396	GB	2026/05/24
B65815E0250A041	Dachs Electronica, S.A. Click to know about this distributor		5	ES	2026/05/25
B65815E0250A041	DigiKey Click to know about this distributor	Buy Now	208	Multiple	2026/05/25
B65815E0250A041	Melchioni s.p.a. Click to know about this distributor		3,600	IT	2026/05/25
B65815E0250A041	Buerklin GmbH & Co. Click to know about this distributor	Buy Now	35	DE	2026/05/26
B65815E0250A041	Gateway Electronic Components Click to know about this distributor		744	GB	2026/05/26
B65815E0250A041	Mouser Electronics Inc. Click to know about this distributor	Buy Now	499	Multiple	2026/05/26

Part Number:

B65815E0250A041

B65815E0250A041

Distributor	RS
Buy from Distributor	Buy Now
Stock Quantity	396
Country	GB
Info Last Updated	2026/05/24

B65815E0250A041

Distributor	Dachs Electronica, S.A.
Buy from Distributor
Stock Quantity	5
Country	ES
Info Last Updated	2026/05/25

B65815E0250A041

Distributor	DigiKey
Buy from Distributor	Buy Now
Stock Quantity	208
Country	Multiple
Info Last Updated	2026/05/25

B65815E0250A041

Distributor	Melchioni s.p.a.
Buy from Distributor
Stock Quantity	3,600
Country	IT
Info Last Updated	2026/05/25

B65815E0250A041

Distributor	Buerklin GmbH & Co.
Buy from Distributor	Buy Now
Stock Quantity	35
Country	DE
Info Last Updated	2026/05/26

B65815E0250A041

Distributor	Gateway Electronic Components
Buy from Distributor
Stock Quantity	744
Country	GB
Info Last Updated	2026/05/26

B65815E0250A041

Distributor	Mouser Electronics Inc.
Buy from Distributor	Buy Now
Stock Quantity	499
Country	Multiple
Info Last Updated	2026/05/26

Please check the latest information on each distributor's website. Powered netCOMPONENTS

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