Do not use this part beyond the Rated Current, as this will create
excessive heat and can harm the component
•Storage Temperature (on Tape & Reel): -20°C to 60°C
•Operating Temperature: -55°C to 125°C
•Test conditions of Electrical Properties: 20°C, 33% RH
if not specified differently
DESCRIPTION
3.7
3.6
3.5
3.4
3.3
3.2
3.1
REV
2014-06-05
2013-12-18
2013-04-17
2012-11-28
2012-10-23
2012-09-26
2012-06-26
DATE
SSt
SSt
SSt
SSt
SSt
SSt
SSt
BY
SSt
SSt
SSt
SSt
SMu
SMu
SSt
CHECKED
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
WE-CBF SMD EMI Suppression Ferrite
Bead
Order.- No.
SIZE
A4
742792032
Size: 0805
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.
F1 Typical Impedance Characteristics:
F2 Derating Curve:
Test Equipment: E4991A or equivalent
DESCRIPTION
3.7
3.6
3.5
3.4
3.3
3.2
3.1
REV
2014-06-05
2013-12-18
2013-04-17
2012-11-28
2012-10-23
2012-09-26
2012-06-26
DATE
SSt
SSt
SSt
SSt
SSt
SSt
SSt
BY
SSt
SSt
SSt
SSt
SMu
SMu
SSt
CHECKED
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
WE-CBF SMD EMI Suppression Ferrite
Bead
Order.- No.
SIZE
A4
742792032
Size: 0805
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 - Tape and Reel [mm]:
DESCRIPTION
3.7
3.6
3.5
3.4
3.3
3.2
3.1
REV
2014-06-05
2013-12-18
2013-04-17
2012-11-28
2012-10-23
2012-09-26
2012-06-26
DATE
SSt
SSt
SSt
SSt
SSt
SSt
SSt
BY
SSt
SSt
SSt
SSt
SMu
SMu
SSt
CHECKED
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
WE-CBF SMD EMI Suppression Ferrite
Bead
Order.- No.
SIZE
A4
742792032
Size: 0805
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:
H1: Classification Reflow Profile for SMT components:
H2: Classification Reflow Profiles
Profile Feature
Preheat
- Temperature Min (Tsmin)
- Temperature Max (Tsmax)
- Time (ts) from (Tsmin to Tsmax)
Ramp-up rate (TL to TP)
Liquidous temperature (TL)
Time (tL) maintained above TL
Peak package body temperature (Tp)
Time within 5°C of actual peak temperature (tp)
Ramp-down rate (TP to TL)
Time 25°C to peak temperature
refer to IPC/JEDEC J-STD-020D
Pb-Free Assembly
150°C
200°C
60-120 seconds
3°C/ second max.
217°C
60-150 seconds
See Table H3
20-30 seconds
6°C/ second max.
8 minutes max.
H3: Package Classification Reflow Temperature
Package Thickness
PB-Free Assembly
PB-Free Assembly
PB-Free Assembly
refer to IPC/JEDEC J-STD-020D
< 1.6 mm
1.6 - 2.5 mm
≥ 2.5 mm
Volume mm³
<350
260°C
260°C
250°C
Volume mm³
350 - 2000
260°C
250°C
245°C
Volume mm³
>2000
260°C
245°C
245°C
DESCRIPTION
3.7
3.6
3.5
3.4
3.3
3.2
3.1
REV
2014-06-05
2013-12-18
2013-04-17
2012-11-28
2012-10-23
2012-09-26
2012-06-26
DATE
SSt
SSt
SSt
SSt
SSt
SSt
SSt
BY
SSt
SSt
SSt
SSt
SMu
SMu
SSt
CHECKED
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
WE-CBF SMD EMI Suppression Ferrite
Bead
Order.- No.
SIZE
A4
742792032
Size: 0805
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-CBF
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 usage and operation of the product within ambient conditions, which probably alloy or harm the component surface, has to be avoided.
If the product is potted in customer applications, the potting material might shrink during and after hardening. The product is exposed to the
pressure of the potting material with the effect that the ferrite body and termination is possibly damaged by this pressure and so the electrical
as well as the mechanical characteristics are endangered to be affected. After the potting material is cured, the ferrite body 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 to customer specific products.
Cleaning agents that are used to clean the customer application might damage or change the characteristics of the component, body, pins or
termination.
Direct mechanical impact to the product shall be prevented as the ferrite material of the ferrite body could flake or in the worst case it could
break.
Product specific:
Follow all instructions mentioned in the data sheet, especially:
•The soldering profile has to be complied with according to the technical reflow soldering specification, otherwise this will void the
warranty.
• Wave soldering is only allowed after evaluation and approval.
•All products shall be used before the end of the period of 12 months based on th product date code, if not a 100% solderability can´t be
ensured.
•Violation of the technical product specifications such as exceeding the nominal rated current will void the warranty.
The general and product specific cautions comply with the state of the scientific and technical knowledge and are believed to be accurate and
reliable; however, no responsibility is assumed for inaccuracies or incompleteness.
DESCRIPTION
3.7
3.6
3.5
3.4
3.3
3.2
3.1
REV
2014-06-05
2013-12-18
2013-04-17
2012-11-28
2012-10-23
2012-09-26
2012-06-26
DATE
SSt
SSt
SSt
SSt
SSt
SSt
SSt
BY
SSt
SSt
SSt
SSt
SMu
SMu
SSt
CHECKED
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
WE-CBF SMD EMI Suppression Ferrite
Bead
Order.- No.
SIZE
A4
742792032
Size: 0805
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.
1、引言 汽车污染是当前人们最为关心和急需解决的重要课题之一。作为汽车排气污染物的检测的重要方法,简易瞬态工况法（VMAS法，IG法）可以统计排放总质量，监控车辆的真实排放情况，设备成本不高，测量比较准确，与新车认证检测结果具有相关性，可以检测NO相关因子等一系列优点，成为人们研究的热点。VMAS（Vehicle Mass Analysis System）检测方法在美国和欧洲都有很好的应用基础，...[详细]
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