参数资料
型号: 744874470
厂商: Wurth Electronics Inc
文件页数: 1/3页
文件大小: 0K
描述: COUPLED INDUCTOR FLYBACK 47UH
标准包装: 1
系列: WE-DD
每一线圈的电感: 47µH
线圈数目: 2
电流: 1.8A
容差: ±20%
电感 - 串行连接: 188µH
电感 - 并行连接: 47µH
DC 电阻(DCR): 最大 150 毫欧
安装类型: 表面贴装
尺寸/尺寸: 0.492" L x 0.492" W(12.50mm x 12.50mm)
高度: 0.256"(6.50mm)
包装: 标准包装
其它名称: 732-3887-6
Spezifikation für Freigabe / specification for release
Kunde / customer :
Artikelnummer / part number :
744874470
Bezeichnung :
description :
DOPPELDROSSEL WE-DD
POWER-CHOKE WE-DD
DATUM / DATE : 2010-10-01
A Mechanische Abmessungen / dimensions:
Typ L
D
A
12,5 max.
mm
A
B
1
C
2
B
C
6,5 max
1,5 ± 0,2
mm
mm
A
E
D
E
1
Start
2
4,9 ± 0,2
7,3 ± 0,5
4
Finish
3
mm
mm
L1
L2
4
B Elektrische Eigenschaften / electrical properties:
3
C L?tpad / soldering spec.:
Eigenschaften / properties
Induktivit?t (je Wicklg.) /
inductance (each wdg.)
DC-Widerstand (je Wicklg.) /
DC-resistance (each wdg.)
Testbedingungen /
test conditions
100 kHz / 5mA
@ 20°
L 1, L 2
R DC1,2 typ
Wert / value
47,0
130,0
Einheit / unit
μH
m Ω
tol.
±20%
typ.
3,85
1,0
[ mm ]
DC-Widerstand (je Wicklg.) /
DC-resistance (each wdg.)
Nennstrom (je Wicklg.) (1) /
rated Current (each wdg.) (1)
S?ttigungsstrom (je Wicklg.) /
saturation current (each wdg.)
Eigenres.-Frequenz (2) /
self-res.-frequency (2)
@ 20°
Δ T = 40 K
Δ L/Lo = -10%
R DC1,2 max
I N1, I N2
I sat
SRF
150,0
1,80
2,75
11
m Ω
A
A
MHz
max.
max.
typ.
typ.
13,8
6,1
3,85
2,5
Nennspannung /
rated Voltage
U DC
80
V
max.
(1)
both windings driven by rated current will occur ? T /
(2)
both windings in parallel /
Stromfluss durch beide Wicklungen verursachen ? T
D Prüfger?te / test equipment:
beide Wicklungen parallel
E Testbedingungen / test conditions:
WK 3260B für/for L und/and I DC
GMC Metrahit 27I für/for R DC
HP E4991A für/for SRF
Luftfeuchtigkeit / humidity:
Umgebungstemperatur / temperature:
33%
+20°C
F Werkstoffe & Zulassungen / material & approvals:
G Eigenschaften / general specifications:
Basismaterial / base material:
Ferrit/ ferrite
Betriebstemperatur / operating temperature: -40°C - + 125°C
Draht / wire:
2 SFHW; 180°C
Umgebungstemp. / ambient temperature:
-40°C - + 85°C
UL-File Number:
Freigabe erteilt / general release:
..................................................................................
Datum / date
E174837
It is recommended that the temperature of the part does
not exceed 125°C under worst case operating conditions.
Kunde / customer
................................................................................
Unterschrift / signature
Würth Elektronik
...............................................
Geprüft / checked
............................................
Kontrolliert / approved
OO
Name
Version 1
?nderung / modification
10-01-01
Datum / date
Würth Elektronik eiSos GmbH & Co.KG
D-74638 Waldenburg · Max-Eyth-Strasse 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400
http://www.we-online.com
SEITE 1 VON 3
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