Diodes DMG4812SSS - Manual (Page 5)

DMG4812SSS
Document number: DS35071 Rev. 2 - 2
5 of 6
www.diodes.com
January 2011
© Diodes Incorporated
DMG4812SSS
0.001 0.01 0.1 1 10 100
Fig. 12 Transient Thermal Response
t , PULSE DURATION TIME (s)
1
0.0001 1,000
0.001
0.01
0.1
1
r(
t),
T
R
A
N
SI
EN
T
T
H
E
R
MA
L
R
ES
IS
T
AN
C
E
T - T = P * R (t)
Duty Cycle, D = t /t
J A JA
1 2
θ
R (t) = r(t) * θJA R
R = 80°C/W
θ
θ
JA
JA
P(pk)
t
1
t
2
D = 0.7
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
D = 0.9
D = 0.5
Package Outline Dimensions
Suggested Pad Layout
SO-8
Dim Min Max
A - 1.75
A1 0.10 0.20
A2 1.30 1.50
A3 0.15 0.25
b 0.3 0.5
D 4.85 4.95
E 5.90 6.10
E1 3.85 3.95
e 1.27 Typ
h - 0.35
L 0.62 0.82
θ
0
°
8
°
All Dimensions in mm
Dimensions Value (in mm)
X 0.60
Y 1.55
C1 5.4
C2 1.27
Gauge Plane
Seating Plane
Detail ‘A’
Detail ‘A’
E E1
h
L
D
e b
A2
A1
A
45 °
7 °~ 9 °
A3
0.
25
4
X
C1
C2
Y