B82145A1225J – EPCOS

Part Number:

B82145A1225J

Manufacturer:

EPCOS

Date Code:

RoHS:

RoHS Compliant

MSL:

Not Applicable

COO:

HUNGARY

Description:

2.2 mH Fixed Inductor, 250 mA, 8 Ohm, Through Hole

Datasheet:

Spotted a problem with product information? – let us know

ORDER NOW

Stock Quantity: 2534

Selling Unit: Each

Quantity	Price (ex VAT)
1+	1.92
10+
50+
100+

2534 in stock

Contact us for volume pricing

Same day shipping if ordered before 14.00 GMT
6 month warranty on all stock items
All stock held and shipped from our UK warehouse
Worldwide shipping available, contact us for a quotation
We can ship on your DHL or UPS account if required
Any import duties or taxes are the responsibility of the receiver

Product Details:

Overview

The EPCOS B82145A1225J is a high-performance RF choke designed for robust filtering and impedance matching in demanding electronic circuits. Its 2200µH inductance, specified at 100kHz with a tight 5% tolerance, provides effective suppression of unwanted high-frequency noise. A critical design consideration for ferrite drum cores like this is managing saturation; while rated for 0.25A DC and saturation current, designers must account for potential transient current spikes that could degrade performance or cause failure, especially in power supply filtering applications where ripple current can be significant.

Key Features

Inductance: 2200µH ±5%
Maximum DC Current: 0.25A
Maximum Saturation Current: 0.25A
Maximum DC Resistance: 8Ω
Minimum Quality Factor: 60 @ 252kHz
Self-Resonant Frequency: ≥ 0.8MHz
Dimensions: 6.5mm Diameter x 14.8mm Length

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

EMI suppression in switching power supplies
RF signal path filtering in communication modules
DC current blocking in audio amplifier output stages
Impedance matching in sensor interface circuits