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LEAA2A Fiches technique(PDF) 5 Page - OSRAM GmbH

No de pièce LEAA2A
Description  compact lightsource in multi chip on board technology planar sealed
PDF  16 Pages
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Fabricant  OSRAM [OSRAM GmbH]
Site Internet  http://www.osram.com
Logo OSRAM - OSRAM GmbH

LEAA2A Fiches technique(HTML) 5 Page - OSRAM GmbH

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LE A A2A
2008-07-07
5
R
T = NTC resistance in Ω at temperature T in K
R
N = NTC resistance in Ω at rated temperature TN
in K (T
N = 298 K for test condition)
T, T
N = temperature in K
e = base of the natural logarithm (e = 2.71828)
B = B value, material specific constant of the NTC
thermistor
Typische Thermistor Kennlinie
2) 7) Seite 16
Typical Thermistor Graph
2) 7) page 16
I
F = f (VF); Tboard = 25 °C
SMD NTC Thermistors
SMD NTC Thermistors
R
25
[Ω]
No. of R/T
characteristic
s*
B
25/50
[K]
B
25/85
[K]
Resistance
Tolerance
Δ R
N/RN
B value
Tolerance
Δ B/B
10k
EPCOS 8502
3940
3980
± 5%
± 3%
* for further information please visit www.epcos.com
R
T
R
N
e
B
1
T
---
1
T
N
------
–
⎝⎠
⎛⎞
⋅
⋅
=
BB
NT
⁄
TT
N
⋅
TT
N
–
----------------
R
N
R
T
-------
ln
⋅
==
0
0˚C
T
R
Ω
OHL02609
NTC
1000
2000
3000
4000
5000
6000
7000
10000
10 20 30 40 50 60 70
90
Wellenlängengruppen (Dominantwellenlänge)
4) Seite 16
Wavelength Groups (Dominant Wavelength)
4) page 16
Gruppe
Group
amber
Einheit
Unit
min.
max.
3
613
619
nm
4
619
625
nm



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