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FPR4-T227 数据表(PDF) 2 Page - Riedon Powertron

部件名 FPR4-T227
功能描述  Foil Power Resistors
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制造商  RIEDON [Riedon Powertron]
网页  http://www.riedon.com
标志 RIEDON - Riedon Powertron

FPR4-T227 数据表(HTML) 2 Page - Riedon Powertron

  FPR4-T227 Datasheet HTML 1Page - Riedon Powertron FPR4-T227 Datasheet HTML 2Page - Riedon Powertron  
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Riedon Inc.
300CypressAvenue
AlhambraCA91801
(626)284-9901
(626)284-1704
www.riedon.com
Page44
rev.03/2006A
FPRFNR2-T2274-T227
FoilPowerResistors
Temperature Coefficient
DeratingandStability
DimensionsandAttachmentVariations
PowerRatingNotes-
TheFPR/FNRSeriesFoilResistorsmustbeattachedtoasuit-
able heatsink. The maximum internal resistor temperature is
130°Cfora0.5%stabilitypart.
Tospecifyanappropriateheatsinkusethefollowingformula:
R
θH=TMAX-(PxRθR)-TA
P
Where: R
θH=ThermalResistanceofHeatsink(K/W)
R
θR=ThermalResistanceofResistor(K/W)
T
MAX=MaximumTemperatureofResistor
T
A=AmbientTemperatureofHeatsink(°C)
P=PowerThroughResistor(W)
SPECIFICATIONS (continued)
FPR/FNR2-T227
FPR/FNR4-T227
Dimension
mm
tol.
(±mm)
inches
tol.
(±inches)
A
26
0.5
1.02
0.020
B
38
0.5
1.50
0.020
C
12.7
0.2
0.50
0.008
D
4
0.2
0.16
0.008
E
30
0.2
1.18
0.008
F
15
0.2
0.59
0.008
G
4.1
0.2
0.16
0.008
H
10
0.2
0.39
0.008
I
8
0.2
0.31
0.008
J
4
0.2
0.16
0.008
K
2
0.2
0.08
0.008
L
0.8
0.1
0.03
0.004
M
M4
M4
N
10
0.2
0.39
0.008
O
11.9
0.2
0.47
0.008
0
20
40
60
80
100
120
25
50
85
100
115
130
Temperature of the backplate (°C)
0.1%
0.2%
0.5%
-15ppm/K
+15ppm/K
Nominal ∆R/R
Limit 2 (3σ)
Limit 1 (3σ)
Temperature(°C)
4000
2000
0
-2000
-4000
-6000
-8000
-20
0
-40
80
140
120
100
60
20
40
100
ResistanceValue(mOhm)
5
150
10
200
20
50
2
200
0
250
50 100
tableA


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