參數(shù)資料
型號(hào)： 933917350135
廠商： NXP SEMICONDUCTORS
元件分類： 小信號(hào)晶體管
英文描述： 1000 mA, 80 V, PNP, Si, SMALL SIGNAL TRANSISTOR
封裝： ROHS COMPLIANT, PLASTIC, SC-73, 4 PIN
文件頁(yè)數(shù)： 16/19頁(yè)
文件大?。?/td> 488K
代理商： 933917350135
BC640_BCP53_BCX53_8
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 08 — 22 February 2008
6 of 15
NXP Semiconductors
BC640; BCP53; BCX53
80 V, 1 A PNP medium power transistors
6.
Thermal characteristics
[1]
Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
[2]
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm2.
[3]
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 6 cm2.
Table 7.
Thermal characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Rth(j-a)
thermal resistance from
junction to ambient
in free air
BC640
-
150
K/W
BCP53
-
190
K/W
-
125
K/W
BCX53
-
230
K/W
-
135
K/W
[3] --95
K/W
Rth(j-sp)
thermal resistance from
junction to solder point
BC640
-
40
K/W
BCP53
-
17
K/W
BCX53
-
20
K/W
FR4 PCB, standard footprint
Fig 4.
Transient thermal impedance from junction to ambient as a function of pulse duration for SOT54;
typical values
006aaa222
10
1
102
103
Zth(j-a)
(K/W)
101
105
10
102
104
102
101
tp (s)
103
103
1
0
duty cycle =
1
0.75
0.5
0.33
0.2
0.1
0.05
0.02
0.01
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