BZX79-B39 Philips Semiconductors, BZX79-B39 Datasheet - Page 8

• Manufacturer Part Number: BZX79-B39
• Description: Voltage regulator diodes
• Manufacturer: Philips Semiconductors

Philips Semiconductors
THERMAL CHARACTERISTICS
Note
1. Device mounted on a printed circuit-board without metallization pad.
GRAPHICAL DATA
1999 May 25
SYMBOL
R
R
handbook, full pagewidth
th j-tp
th j-a
Voltage regulator diodes
R th j-a
(K/W)
10
10
10
1
3
2
10
thermal resistance from junction to tie-point lead length 8 mm.
thermal resistance from junction to ambient lead length max.; see Fig.2 and note 1
1
Fig.2 Thermal resistance from junction to ambient as a function of pulse duration.
PARAMETER
1
0.75
0.50
0.33
0.20
0.10
0.05
0.02
0.01
0.001
= 1
10
8
10
2
CONDITIONS
10
3
t p
10
4
T
BZX79 series
Product specification
VALUE
t p (ms)
300
380
=
t p
T
MBG930
10
UNIT
K/W
K/W
5