BT258S-800LT NXP Semiconductors, BT258S-800LT Datasheet - Page 5

• Manufacturer Part Number: BT258S-800LT
• Description: Passivated sensitive gate Silicon-Controlled Rectifier (SCR) in a SOT428 surface-mounted plastic package
• Manufacturer: NXP Semiconductors

NXP Semiconductors
5. Thermal characteristics
Table 4.
[1]
BT258S-800LT_1
Product data sheet
Symbol
R
R
Fig 6.
th(j-mb)
th(j-a)
Z
Mounted on a FR4 printed-circuit board, single-sided copper, tin-plated and standard footprint; see
th(j-mb)
(K/W)
10
10
10
10
1
1
2
3
10
Transient thermal impedance from junction to mounting base as a function of pulse width
5
Thermal characteristics
Parameter
thermal resistance from junction to
mounting base
thermal resistance from junction to
ambient
10
4
10
3
Rev. 01 — 2 September 2008
Conditions
see
in free air
10
Figure 6
2
10
1
[1]
SCR logic level, high temperature
Min
-
-
BT258S-800LT
Figure
P
Typ
-
75
1
14.
t
p
T
t
p
© NXP B.V. 2008. All rights reserved.
Max
2
-
(s)
003aac301
=
t
T
t
p
10
Unit
K/W
K/W
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