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PTKM250R-121H

Delevan

Radial, Horizontal (Open)
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Description

FIXED IND 250UH 2.07A 160 MOHM

Specifications

Inductance
250 µH
Current Rating
2.07 A
DC Resistance (DCR)
160mOhm Max
Dimensions
0.850" Dia (21.59mm)

Parameter Guide

Understand the key electrical and mechanical specifications for PTKM250R-121H.

Inductance
250 µH

PTKM250R-121H has an inductance value of 250 µH. This value indicates how much magnetic energy the component can store and is one of the first parameters to compare when selecting an inductor.

Current Rating
2.07 A

PTKM250R-121H is rated for 2.07 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.

DC Resistance (DCR)
160mOhm Max

PTKM250R-121H lists a DC resistance of 160mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.

Package / Case
Radial, Horizontal (Open)

PTKM250R-121H uses a package or case of Radial, Horizontal (Open). Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.

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Product Attributes

Datasheet record
Source documentLast updated: 6/15/2026
Inductance250 µH
Tolerance±10%
Current Rating2.07 A
DC Resistance (DCR)160mOhm Max
Saturation Current900mA
Dimensions0.850" Dia (21.59mm)
Case / SizeRadial, Horizontal (Open)
Package / CaseRadial, Horizontal (Open)
SupplierDelevan
DescriptionFIXED IND 250UH 2.07A 160 MOHM
SeriesPTKMR
Product StatusActive
Type / ConstructionToroidal
Core MaterialFerrite
ShieldingShielded
Self Resonant Frequency1MHz
Inductance Test Frequency1 kHz
Mounting TypeThrough Hole
Height - Seated (Max)0.400" (10.16mm)
Featureshttps://www.digikey.com/en/products/detail/delevan/PTKM250R-121H/4199503

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