bcx52-10 NXP Semiconductors, bcx52-10 Datasheet - Page 6

• Manufacturer Part Number: bcx52-10
• Description: Bc638; Bcp52; Bcx52 60 V, 1 A Pnp Medium Power Transistors
• Manufacturer: NXP Semiconductors

NXP Semiconductors
6. Thermal characteristics
BC638_BCP52_BCX52_7
Product data sheet
Fig 4. Transient thermal impedance from junction to ambient as a function of pulse duration for SOT54;
Z
(K/W)
th(j-a)
10
10
10
10
1
3
2
1
10
FR4 PCB, standard footprint
typical values
duty cycle =
5
1
0.5
0.2
0.1
0.05
0.02
0.01
0
0.75
0.33
10
4
Table 7.
[1]
[2]
[3]
Symbol
R
R
th(j-a)
th(j-sp)
Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 6 cm
10
Thermal characteristics
3
Parameter
thermal resistance from
junction to ambient
thermal resistance from
junction to solder point
BC638
BCP52
BCX52
BC638
BCP52
BCX52
10
2
Rev. 07 — 26 June 2007
10
1
Conditions
in free air
BC638; BCP52; BCX52
1
60 V, 1 A PNP medium power transistors
[1]
[1]
[2]
[1]
[2]
[3]
10
Min
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
10
2
© NXP B.V. 2007. All rights reserved.
t
006aaa222
p
(s)
Max
150
190
125
230
135
95
40
17
20
10
3
2
2
Unit
K/W
K/W
K/W
K/W
K/W
K/W
K/W
K/W
K/W
.
.
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