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WDBR3 Datasheet Preview

WDBR3 Datasheet

Power Resistors

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All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
ElEelcetcrtirciacla Dl Dataata
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ResRiestsaisntcaen ctoeletoralenrcaen c e % %
PulPsuel pseowpoewr reartirnagti n1 g 1 kWkW
PowPoewr reartirnagti nogn ohneahtesaintski n2k 2
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PowPoewr reartirnagti nogn ofannf-acno-ocloeodl ehdeahtesaintski n3k 3
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TCRT C R ppmpp/m°C/°C
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WDWBDR1B/R21/2
12,1 41275,,4,1 527500,,,5,2 120002,,01,2 20250, ,2 5,
WDWBDR1BR1
WDWBDR2BR2 WDWBDR3BR3 WDWBDR5BR5
12,1 125, ,1 250, ,2 202, ,2 225, ,2 457, ,4 570, ,5 100, 01,0 105, 0150
10 10
0.50.5
1.51.5
2.02.0
3.53.5
5.05.0
160160
180180
200200
260260
270270
300300
700700
780780
900900
10010000
< +<60+0600
365365
-55- 5to5 +to20+02 00
25020500
<3 <3
<4 <4
<5 <5
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WDWBDR7BR7
7.07.0
280280
14910490
<6 <6
PhPyhsyisciacla Dl Dataata
DimDeimnseinosniso nins minmm, mw,ewigehitg whtitwhoituhto tuetrtmerinmaitnioantiso nins gin g
L ±L0.±10.1W ±W0.±10.1t ±0t .±10.1ØDØ nDomnoma naomnomb nbomnomc ncomnomWtW. nto. mnom
WDWBDR1B/R21/2 31.391.9 28.218.1
2.22.2 7.57.5 3.13.1 4.34.3 6.56.5
WDWBDR1BR1 49.439.3 35.395.9
3.23.2 3.23.2 11.121.2 6.26.2 12.162.6
WDWBDR2BR2 61 61 40.460.6 0.90.9
4.74.7 13.103.0 5.85.8 17.117.1
WDWBDR3BR3 1011.061.6 70 70
WDWBDR5BR5 122122 70 70
5.35.3
13.153.5 22.202.0 10.120.2 50.580.8
14.104.0 23.283.8 7.47.4 60.670.7
WDWBDR7BR7 1521.542.4 1011.061.6 1.51.5
15.105.0 51.531.3 9.29.2 1811.881.8
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http://wwww.wttwel.ettcetlreocntircosn.cicosm.c/ormes/isretosirsstors
09.1170.19




TT

WDBR3 Datasheet Preview

WDBR3 Datasheet

Power Resistors

No Preview Available !

Ultra Low Profile
Power Resistors
WDBR Series
Terminations
The following termination options are available
Option
Code
Solder pad only 1
I
Nominal Dimensions (mm)
PL
PW
WDBR Size
½ 1, 2, 3, 5 & 7
Pad Length, PL
7.5
9.0
Pad Width, PW
4.5
9.0
Flying leads
UL3134/5
40A, 600V
L
250mm
3mm
Push-on connectors
T
TW
TH
TT
WDBR Size
½ 1, 2, 3, 5 & 7
Terminal Height, TH 7.5
12
Terminal Width, TW 2.8
6.3
Terminal Thickness, TT 0.8
0.8
Notes:
1. Two options exist for solder type. The standard is SnAg (96SC) which is Pb-free and the second (HT) is high temperature HMP alloy which is
Pb-bearing. Both are RoHS compliant, but the second relies on the RoHS exemption for high temperature solders and is targeted at specialist
high temperature applications.
Thermal Performance
Pulsed load at full pulse power rating 50,000 cycles (see Fig 1)
Mounted on a 0.53°C/W heatsink with 5m/s forced air cooling, air temperature 25°C.
Derating at heatsink temperatures >160°C
ΔR%
Maximum
5
See Fig. 2
Fig. 1: Duty Cycle Waveform
1ms
P pk
1ms
2s
8s
120
100
80
60
40
20
0
0
Fig. 2: Temperature Derating
50 100 150 200
Heatsink Temperature (°C)
250
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
10.19


Part Number WDBR3
Description Power Resistors
Maker TT
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WDBR3 Datasheet PDF






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