EPCOS 3.9 mH Ferrite Power Line Choke, 6 A Idc, 40 mΩ Rdc 250V ac, B82721A

RS Stock No.:: 772-0203
Mfr. Part No.:: B82725A2602N001
Brand:: EPCOS

EPCOS 3.9 mH Ferrite Power Line Choke, 6 A Idc, 40 mΩ Rdc 250V ac, B82721A

Bulk discount available

Subtotal (1 unit)*

£4.50

(exc. VAT)

£5.40

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

Plus 156 unit(s) shipping from 09 March 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 9	£4.50
10 - 24	£3.82
25 - 49	£3.38
50 - 74	£3.14
75 +	£3.06

*price indicative

RS Stock No.:: 772-0203
Mfr. Part No.:: B82725A2602N001
Brand:: EPCOS

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	EPCOS
	Product Type	Power Line Choke
	Inductance	3.9 mH
	Maximum DC Current	6A
	Mount Type	Radial
	Maximum DC Resistance	40mΩ
	Test Frequency	100 kHz
	Packaging	Blister Tray in Cardboard Box
	Automotive Standard	No
	Diameter	1 mm
	Lead Diameter	1mm
	Height	25mm
	Pin Count	4
	Core Material	Ferrite
	Minimum Operating Temperature	-40°C
	Inductance Tolerance	30 %
	Maximum Operating Temperature	125°C
	Maximum Voltage	250V ac
	Length	44mm
	Standards/Approvals	EN 60938-2, UL 1283
	Termination Style	Pin
	Depth	42.4mm
	Lead Pitch	40mm
	Series	B82721A

	Select all
	Brand EPCOS
	Product Type Power Line Choke
	Inductance 3.9 mH
	Maximum DC Current 6A
	Mount Type Radial
	Maximum DC Resistance 40mΩ
	Test Frequency 100 kHz
	Packaging Blister Tray in Cardboard Box
	Automotive Standard No
	Diameter 1 mm
	Lead Diameter 1mm
	Height 25mm
	Pin Count 4
	Core Material Ferrite
	Minimum Operating Temperature -40°C
	Inductance Tolerance 30 %
	Maximum Operating Temperature 125°C
	Maximum Voltage 250V ac
	Length 44mm
	Standards/Approvals EN 60938-2, UL 1283
	Termination Style Pin
	Depth 42.4mm
	Lead Pitch 40mm
	Series B82721A

Datasheet

COO (Country of Origin):: HU

Epcos B82721A Series Common Mode Choke

Current-compensated ring core double chokes with a ferrite core in flame retardant potting and case to (UL94V-0)

High resonance frequency by virtue of the unique winding technique used

Applications include switch-mode power supplies for computers, televisions and other sensitive electronic equipment. Additionally the B82721/2/3/4/5A ranges of chokes are suitable for electronic ballasts in lamps, and the B82725J range of chokes is ideally suited for washing machines and chargers.

Low profile horizontal (-A/-B) versions

Vertical (-J/-K) versions save PCB space

Note

The stated Rated Current I_R is referenced to 50Hz @ T_A 40°C
The stated Rated Inductance L_R is per Coil @ 20°C

Approvals

VDE; UL Recognised Component

Standards

VDE 0565-2 UL 1283