Classification Reflow Profile for SMT components:

Time

25

Time 25°C to Peak

Preheat Area

Max. Ramp Up Rate = 3°C/s

Max. Ramp Down Rate = 6°C/s

Profile Feature

Value

Preheat Temperature Min

Preheat Temperature Max

60 - 120 seconds

3 °C/ second max.

Liquidous Temperature

217 °C

60 - 150 seconds

Peak package body temperature

see table below

Time within 5°C of actual peak temperaure

20 - 30 seconds

6 °C/ second max.

Time 25°C to peak temperature

8 minutes max.

Classification Reflow Soldering Profile:

refer to IPC/ JEDEC J-STD-020E

Properties

Volume mm³

<350

Volume mm³

350-2000

Volume mm³

>2000

PB-Free Assembly | Package Thickness < 1.6 mm

260 °C

260 °C

260 °C

PB-Free Assembly | Package Thickness 1.6 mm - 2.5 mm 260 °C

250 °C

245 °C

PB-Free Assembly | Package Thickness ≥ 2.5 mm

250 °C

245 °C

245 °C

Package Classification Reflow Temperature:

refer to IPC/ JEDEC J-STD-020E

Würth Elektronik eiSos GmbH & Co. KG

EMC & Inductive Solutions

Max-Eyth-Str. 1

74638 Waldenburg

Germany

Tel. +49 (0) 79 42 945 - 0

www.we-online.com

eiSos@we-online.com

CREATED

CHECKED

GENERAL TOLERANCE

PROJECTION

METHOD

KaS

JRS

DIN ISO 2768-1m

DESCRIPTION

WE-LQFS SMD Semishielded Tiny

Power Inductor

ORDER CODE

74406043330

SIZE

REVISION

STATUS

DATE

BUSINESS UNIT

PAGE

4828

001.000

Valid

2015-11-10

eiSos

3/5

This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH

& Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety

must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance.