NXP Semiconductors
1N4728A to 1N4749A
Voltage regulator diodes
6. Thermal characteristics
Table 6.
Symbol
R
th(j-t)
Thermal characteristics
Parameter
thermal resistance from
junction to tie-point
Conditions
lead length 4 mm
Min
-
Typ
-
Max
110
Unit
K/W
10
3
R
th(j-t)
(K/W)
10
2
δ
=1
0.75
0.50
0.33
0.20
10
0.10
0.05
006aab843
0.02
0.01
0
1
10
−1
1
10
10
2
10
3
10
4
t
p
(ms)
10
5
Fig 1.
Thermal resistance from junction to tie-point as a function of pulse duration;
lead length 4 mm
7. Characteristics
Table 7.
Characteristics
T
j
= 25
°
C unless otherwise specified.
Symbol
V
F
Parameter
forward voltage
Conditions
I
F
= 200 mA
Min
-
Typ
-
Max
1.2
Unit
V
1N4728A_SER_2
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 30 October 2009
3 of 10