SMAJ5.0 THRU SMAJ170CA
RATINGS AND CHARACTERISTIC CURVES
P e a k P uls e P owe r ( P
P P
) or C urre nt ( I
P P M
)
D e ra ting in P e rc e nta ge , %
100
100
N on-re pe titive P uls e
W a ve form s hown in F I G . 3
T
A
= 2 5
o
C
10
P
P P M
— P e a k P uls e P owe r ( k W )
75
S MA J 8 5 --
S MA J 1 7 0
1
S MA J 5 . 0 --
S MA J 7 8
50
25
0 . 2 x 0 . 2 " ( 5 . 0 x 5 . 0 mm)
C oppe r P a d A re a s
0
0
25
50
75
100
125
150
175
200
0 . 2 x 0 . 2 " ( 5 . 0 x 5 . 0 mm)
C oppe r P a d A re a s
0. 1
0 .1 m s
1 . 0 ms
1 0 ms
1 0 0 ms
1 . 0 ms
1 0 ms
t
d
— P uls e W idth ( s e c . )
FIG.1 – Peak Pulse Po wer Rating Cur ve
150
10, 000
T
A
— A mbie nt Te mpe ra ture (
o
C )
FIG. 2 –Pulse Derating Curve
T
J
= 2 5
o
C
f = 1 . 0 MH z
V s ig = 5 0 mV p-p
1, 000
M e a s ure d a t
S ta nd-O ff
V olta ge , V
W M
U ni-D ire c tiona l
100
I
P P M
— P e a k P uls e C urre nt, % I
R S M
100
P e a k V a lue
I
P P M
H a lf V a lue — I P P
2
I
P P M
50
1 0 /1 0 0 0 s e c . W a ve form
a s de fine d by R . E . A .
td
0
0
1. 0
2. 0
3. 0
4. 0
C
J
— J unc tion C a pa c ita nc e ( pF )
tr = 1 0
u
s e c .
T
J
= 25
P uls e W idth ( td)
is de fine d a s the point
whe re the pe a k c urre nt
de c a ys to 5 0 % of I
P P M
o
C
B i-D ire c tiona l
10
1
10
100
200
t — T ime ( ms )
V
W M
— R e ve rs e S ta nd-off V olta ge ( V )
FIG. 3 – Pulse Wa vef orm
I
F S M
— P e a k F orwa rd S urge C urre nt ( A )
1000
200
FIG. 4 – Typical Junction Capacitance
T
J
= T
J
ma x .
8 . 3 ms S ingle H a lf S ine -W a ve
( J E D E C Me thod)
T ra ns ie nt T he rma l I mpe da nc e (
o
C /W )
100
100
50
10
1
0. 001
0. 01
0. 1
1
10
100
1000
10
1
5
10
50
100
t
p
— P uls e D ura tion ( s e c )
N umbe r of C yc le s a t 6 0 H z
FIG.5 – Typical Transient Thermal
Impedance
FIG.6 - Maximum Non-Repetitive Forwar d
Surge Current Uni-Directional Onl y
DIOTECH [ DIOTECH COMPANY. ]
