74437349033 [WURTH]
WE-LHMI SMD Power Inductor; WE- LHMI贴片功率电感
| 型号： | 74437349033 |
| 厂家： | 
WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. |
| 描述： | WE-LHMI SMD Power Inductor |
| 文件： | 总6页 (文件大小：1026K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A Dimensions: [mm]
B Land Pattern: [mm]
D Electrical Properties:
Properties
Inductance
Test conditions
Value
3.3
Unit
µH
Tol.
±20%
max.
typ.
100 kHz/ 10 mA
∆T = 40 K
|ΔL/L| < 20%
@ 20°C
L
Rated Current
I
6.0
A
R
Saturation Current
DC Resistance
I
12.0
20.9
19.0
26
A
sat
R
R
f
mΩ
mΩ
MHz
max.
typ.
DC
DC
DC Resistance
@ 20°C
Self Resonant Frequency
typ.
res
C Schematic:
E General information:
It is recommended that the temperature of the part does not exceed 125°C
under worst case operating conditions.
Ambient temperature: -40°C to +85°C (refering to I )
R
Operating temperature: -40°C to +125°C
Storage temperature (on tape & reel): -20°C to +40°C; 75% RH max.
Test conditions of Electrical Properties: 20°C, 33% RH
if not specified differently
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
SIZE
A4
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
74437349033
Size: 7050
BD
CHECKED
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.
F Typical Inductance vs. Current Characteristics:
F Typical Temperature rise vs. Current Characteristics:
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
74638 Waldenburg
Germany
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
SIZE
A4
74437349033
Size: 7050
BD
CHECKED
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.
G Packaging Specification: [mm]
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
74638 Waldenburg
Germany
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
SIZE
A4
74437349033
Size: 7050
BD
CHECKED
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.
H Soldering Specifications:
H2: Classification Reflow Profiles
H1: Classification Reflow Profile for SMT components:
Profile Feature
Pb-Free Assembly
Preheat
- Temperature Min (T
)
150°C
200°C
60-180 seconds
smin
- Temperature Max (T
- Time (t ) from (T
)
smax
to T )
s
smin
smax
Ramp-up rate (T to T )
3°C/ second max.
L
P
Liquidous temperature (T )
217°C
60-150 seconds
L
Time (t ) maintained above T
L
L
Peak package body temperature (T )
p
See Table H3
Time within 5°C of actual peak temperature (t )
p
20-30 seconds
6°C/ second max.
8 minutes max.
Ramp-down rate (T to T )
P
L
Time 25°C to peak temperature
refer to IPC/JEDEC J-STD-020D
H3: Package Classification Reflow Temperature
Package Thickness
Volume mm³
<350
Volume mm³
350 - 2000
Volume mm³
>2000
PB-Free Assembly
PB-Free Assembly
< 1.6 mm
260°C
260°C
250°C
260°C
250°C
245°C
260°C
245°C
245°C
1.6 - 2.5 mm
≥ 2.5 mm
PB-Free Assembly
refer to IPC/JEDEC J-STD-020D
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
SIZE
A4
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
74437349033
Size: 7050
BD
CHECKED
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.
I Cautions and Warnings:
The following conditions apply to all goods within the product series of WE-LHMI
of Würth Elektronik eiSos GmbH & Co. KG:
General:
All recommendations according to the general technical specifications of the data-sheet have to be complied with.
The disposal and operation of the product within ambient conditions which probably alloy or harm the wire isolation has to be avoided.
If the product is potted in customer applications, the potting material might shrink during and after hardening. Accordingly to this the product
is exposed to the pressure of the potting material with the effect that the core, wire and termination is possibly damaged by this pressure and
so the electrical as well as the mechanical characteristics are endanger to be affected. After the potting material is cured, the core, wire and
termination of the product have to be checked if any reduced electrical or mechanical functions or destructions have occurred.
The responsibility for the applicability of customer specific products and use in a particular customer design is always within the authority of
the customer. All technical specifications for standard products do also apply for customer specific products.
Washing varnish agent that is used during the production to clean the application might damage or change the characteristics of the wire in-
sulation, the marking or the plating. The washing varnish agent could have a negative effect on the long turn function of the product.
Direct mechanical impact to the product shall be prevented as the iron powder material of the core could flake or in the worst case it could
break.
Product specific:
Follow all instructions mentioned in the datasheet, especially:
•The solder profile has to be complied with according to the technical reflow soldering specification, otherwise no warranty will be sustai-
ned.
•All products are supposed to be used before the end of the period of 12 months based on the product date-code, if not a 100% solderabi-
lity can´t be warranted.
•Violation of the technical product specifications such as exceeding the nominal rated current will result in the loss of warranty.
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
74638 Waldenburg
Germany
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
SIZE
A4
74437349033
Size: 7050
BD
CHECKED
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.
J Important Notes:
The following conditions apply to all goods within the product range of
Würth Elektronik eiSos GmbH & Co. KG:
1. General Customer Responsibility
6. Product Life Cycle
Some goods within the product range of Würth Elektronik eiSos GmbH & Co. KG contain statements regarding general suitability for certain
application areas. These statements about suitability are based on our knowledge and experience of typical requirements concerning the are-
as, serve as general guidance and cannot be estimated as binding statements about the suitability for a customer application. The responsibi-
lity for the applicability and use in a particular customer design is always solely within the authority of the customer. Due to this fact it is up to
the customer to evaluate, where appropriate to investigate and decide whether the device with the specific product characteristics described
in the product specification is valid and suitable for the respective customer application or not.
Due to technical progress and economical evaluation we also reserve the right to discontinue production and delivery of products. As a stan-
dard reporting procedure of the Product Termination Notification (PTN) according to the JEDEC-Standard we will inform at an early stage about
inevitable product discontinuance. According to this we cannot guarantee that all products within our product range will always be available.
Therefore it needs to be verified with the field sales engineer or the internal sales person in charge about the current product availability ex-
pectancy before or when the product for application design-in disposal is considered.
The approach named above does not apply in the case of individual agreements deviating from the foregoing for customer-specific products.
2. Customer Responsibility related to Specific, in particular Safety-Relevant Applications
7. Property Rights
It has to be clearly pointed out that the possibility of a malfunction of electronic components or failure before the end of the usual lifetime can-
not be completely eliminated in the current state of the art, even if the products are operated within the range of the specifications.
All the rights for contractual products produced by Würth Elektronik eiSos GmbH & Co. KG on the basis of ideas, development contracts as
well as models or templates that are subject to copyright, patent or commercial protection supplied to the customer will remain with Würth
Elektronik eiSos GmbH & Co. KG.
In certain customer applications requiring a very high level of safety and especially in customer applications in which the malfunction or failure
of an electronic component could endanger human life or health it must be ensured by most advanced technological aid of suitable design of
the customer application that no injury or damage is caused to third parties in the event of malfunction or failure of an electronic component.
8. General Terms and Conditions
Unless otherwise agreed in individual contracts, all orders are subject to the current version of the “General Terms and Conditions of Würth
Elektronik eiSos Group”, last version available at www.we-online.com.
3. Best Care and Attention
Any product-specific notes, warnings and cautions must be strictly observed.
4. Customer Support for Product Specifications
Some products within the product range may contain substances which are subject to restrictions in certain jurisdictions in order to serve spe-
cific technical requirements. Necessary information is available on request. In this case the field sales engineer or the internal sales person in
charge should be contacted who will be happy to support in this matter.
5. Product R&D
Due to constant product improvement product specifications may change from time to time. As a standard reporting procedure of the Product
Change Notification (PCN) according to the JEDEC-Standard inform about minor and major changes. In case of further queries regarding the
PCN, the field sales engineer or the internal sales person in charge should be contacted. The basic responsibility of the customer as per Secti-
on 1 and 2 remains unaffected.
DESCRIPTION
WE-LHMI SMD Power Inductor
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
Order.- No.
1.2
1.1
1.0
REV
2012-06-28
2012-02-29
2011-10-01
DATE
SSt
SSt
SSt
BY
SSt
BD
74638 Waldenburg
Germany
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
SIZE
A4
74437349033
Size: 7050
BD
CHECKED
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.
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