TR3421T251M datasheet, PDF - EEWORLD Datasheet

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TR3421T251M: DescriptionGeneral Purpose Inductor, 250uH, 20%, 1 Element, Ferrite-Core, ROHS COMPLIANT; CategoryPassive components inductor; File Size108KB，1 Pages; ManufacturerKOA Speer; Websitehttp://www.koaspeer.com/; Environmental Compliance

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TR3421T251M Overview

General Purpose Inductor, 250uH, 20%, 1 Element, Ferrite-Core, ROHS COMPLIANT

TR3421T251M Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Reach Compliance Code	compliant
ECCN code	EAR99
core material	FERRITE
DC Resistance	0.15 Ω
Nominal inductance(L)	250 µH
Inductor Applications	POWER INDUCTOR
Inductor type	GENERAL PURPOSE INDUCTOR
JESD-609 code	e3
Manufacturer's serial number	TR
Number of functions	1
Number of terminals	2
Maximum operating temperature	80 °C
Minimum operating temperature	-25 °C
Maximum rated current	4 A
Shape/Size Description	CYLINDRICAL PACKAGE
shield	NO
surface mount	NO
Terminal surface	Matte Tin (Sn) - with Nickel (Ni) barrier
Terminal location	RADIAL
Terminal shape	WIRE
Test frequency	0.001 MHz
Tolerance	20%
Base Number Matches	1

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INDUCTORS

TECHNOLOGY OF TOMORROW

FERRITE CORE

TOROIDAL COILS

TR 0808-TYPE

TR-TYPE

STRUCTURE

Toroidal ferrite core

Winding wire

Lead wire

Products with Pb-free terminations

meet RoHS requirements

TYPE DESIGNATION (HOW TO ORDER)

Old Part No.

New Part No.

(Pb-free)

PRODUCT CODE

1307

STYLE

(diameter / width)

Specifications given herein may be changed at any time without prior notice.

Please confirm technical specifications before you order and/or use.

INDUCTANCE

TERMINATION

SURFACE MATERIAL TOLERANCE

T: Sn

L: Sn/Pb

M(±20%)

Y(±35%)

100

INDUCTANCE

TOLERANCE

M(±20%)

Y(±35%)

PACKAGING

Blank: Bulk

*Please see “PACKAGING”

NOMINAL

INDUCTANCE

3 digits

Unit: µH

ALLOWABLE

DC CURRENT

Unit: A

FEATURES

■

The below mentioned characteristic values are representative examples and

can be changed in accordance with the customers requirements

■

Excellent filter characteristics

■

Clear coating or tube cover is available

■

TR: Normal mode choke coils for general power supplies

■

TR 0808: Common mode choke coils

For switching power supplies the TRH-series is also available

Measuring frequency: 1 kHz

Operating temperature range: -25°C ... +80°C

RATING

TYPE

TR 1307 100 M

TR 1409 100 M

TR 1710 100 M

TR 1912 100 M

TR 1913 100 M

TR 2716 100 M

TR 1508 250 M

TR 1610 250 M

TR 1812 250 M

TR 2313 250 M

TR 2415 250 M

TR 3019 250 M

TR 1709 500 M

TR 1610 500 M

TR 2413 500 M

TR 2415 500 M

TR 2816 500 M

TR 3421 500 M

TR 1809 101 M

TR 1810 101 M

TR 2514 101 M

TR 2616 101 M

TR 3018 101 M

TR 4221 101 M

TR 1810 251 M

TR 2411 251 M

TR 3017 251 M

TR 3421 251 M

TR 4120 251 M

TR 2311 501 M

TR 3016 501 M

TR 3419 501 M

TR 0808 450 Y

TR 0808 650 Y

TR 0808 820 Y

NOMINAL

INDUCTANCE

TOLERANCE

DC RESISTANCE

(Max.)

0.08

Ω

0.06

Ω

0.03

Ω

0.04

Ω

0.03

Ω

0.15

Ω

0.08

Ω

25 µH

0.06

Ω

0.05

Ω

0.04

Ω

0.20

Ω

0.12

Ω

50 µH

M (± 20 %)

0.09

Ω

0.08

Ω

0.05

Ω

0.27

Ω

0.18

Ω

0.17

Ω

0.12

Ω

0.10

Ω

0.08

Ω

0.48

Ω

0.25

Ω

0.20

Ω

0.15

Ω

0.16

Ω

0.54

Ω

0.36

Ω

0.25

Ω

0.12

Ω

0.15

Ω

0.18

Ω

ALLOWABLE DC

CURRENT (Max.)

1.0 A

2.0 A

3.0 A

4.0 A

5.0 A

10.0 A

1.0 A

2.0 A

3.0 A

4.0 A

5.0 A

10.0 A

1.0 A

2.0 A

3.0 A

4.0 A

5.0 A

10.0 A

1.0 A

2.0 A

3.0 A

4.0 A

5.0 A

10.0 A

1.0 A

2.0 A

3.0 A

4.0 A

5.0 A

1.0 A

2.0 A

3.0 A

0.5 A

A (Max.)

7.6

DIMENSIONS (mm)

B (Max.)

C±4

6.5

W ± 0.1

0.45

0.6

0.8

1.0

1.6

0.45

0.6

0.8

1.0

9.0 Max.

1.6

0.45

0.6

0.8

1.0

1.6

0.45

0.6

0.8

1.0

1.6

0.5

0.7

0.9

1.0

1.2

0.5

0.7

0.9

–

10 µH

100 µH

250 µH

500 µH

45 µH

65 µH

82 µH

Y (± 35 %)

EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de

Revision: 5. Nov. 2004

INDUCTORS

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