Philips Semiconductors
50 V, 3 A
NPN low VCEsat (BISS) transistor
Product specification
PBSS4350X
103
Zth
(K/W)
(1)
102
(2)
(3)
(4)
(5)
(6)
10
(7)
(8)
(9)
1 (10)
006aaa244
10−1
10−5
10−4
10−3
10−2
10−1
1
10
102
103
tp (s)
Mounted on FR4 printed-circuit board; mounting pad for collector 1 cm2.
(1) δ = 1.
(2) δ = 0.75.
(3) δ = 0.5.
(4) δ = 0.33.
(5) δ = 0.2.
(6) δ = 0.1.
(7) δ = 0.05.
(8) δ = 0.02.
(9) δ = 0.01.
(10) δ = 0.
Fig.4 Transient thermal impedance as a function of pulse time; typical values.
103
Zth
(K/W)
102 (1)
(2)
(3)
(4)
(5)
10 (6)
(7)
(8)
(9)
1
(10)
006aaa245
10−1
10−5
10−4
10−3
10−2
10−1
1
10
102
103
tp (s)
Mounted on FR4 printed-circuit board; mounting pad for collector 6 cm2.
(1) δ = 1.
(2) δ = 0.75.
(3) δ = 0.5.
(4) δ = 0.33.
(5) δ = 0.2.
(6) δ = 0.1.
(7) δ = 0.05.
(8) δ = 0.02.
(9) δ = 0.01.
(10) δ = 0.
Fig.5 Transient thermal impedance as a function of pulse time; typical values.
2004 Nov 04
6