U5ZA40C
2003-02-17
1
TOSHIBA Zener Diode Silicon Diffused-Junction Type
U5ZA40C
Best Suited for Overvoltage Protection of Electronic
System:
Electronic System for Use in Automobiles
Electronic System for Commercial Use
Electronic System for Industrial Use
For Communications, Controls, Measuring Instruments,
etc.
High surge power withstanding capabilities that absorb load dump
surge.
Excellent surge responsibility for steep surge absorption.
Surface mount type is available for easy applications.
Corresponds to taping packages.
Maximum Ratings
(Ta
=
=
=
=
25C)
Characteristics Symbol
Rating
Unit
Allowable power dissipation (Note1)
P
5
W
Non-repetitive peak reverse surge
current
(see figure 1 for the exponents.)
I
RSM
62 A
Peak one cycle surge forward current
(single half sine-wave, t
= 10 ms)
I
FSM
700 A
Junction temperature
T
j
-40~150 C
Storage temperature
T
stg
-40~150 C
Note1: Lead tip temperature T
L
= 25C
Unit: mm
JEDEC
JEITA
TOSHIBA 3-11J2A
Weight: 2.5 g (typ.)
I
RSM
I
RSM
2
0 10
ms
Figure 1
U5ZA40C
2003-02-17
3
T
r
a
n
sie
n
t T
h
er
m
a
l R
e
sis
t
an
ce
R
th
(
C
)
Su
r
g
e
a
b
so
r
p
ti
o
n
ca
p
a
b
ility
P
RSM
(W
)
Allowable power dissipation P (W)
T
L
, Ta Max P
Maxi
mu
m al
l
o
w
a
bl
e l
e
a
d
te
mp
er
atu
r
e T
L,
ambi
ent
te
mp
er
atu
r
e
T
a
(C
)
Zener voltage V
Z
(V)
V
Z
I
Z
Ze
ner
cu
rre
nt
I
Z
(A
)
Pulse width (ms)
P
RSM
t
w
Time t (s)
R
th
t
Instantaneous forward voltage V
F
(V)
I
F
V
F
Instantan
eo
us f
o
rw
ar
d cu
rr
ent
I
F
(A
)
Ta
= 25C
Typical
0.01
36
100
48
37 38 39 40 41 42 43 44 45 46 47
0.1
1
10
Typical
Rth (j-D): Transient
Thermal Resistance
between junction to anode
electrode.
0.01
0.001
100
1000
0.01 0.1 1
10 100
0.1
1
10
Rth (j-a)
Rth (j-D)
Tj
= 100C
100
0.1
0.6
1.8
0.8 1 1.2 1.4 1.6
Tj
= 25C
Tj
= 150C
10
1
Ta
= 25C
Rectangular Pulse
100000
10
0.1
10000
100
1000
100
1
10
Design Recommended region
tw
P
RSM
0
0
Size
Glass-Epoxy
Substrate
Solder round
a
10 mm*10 mm
Size b
50
mm*50 mm
Substrate
Thickness
c
1.5 mm
Ta-L
160
20
40
60
80
100
120
140
1 2 3
4 5 6
Ta-P
TL
a
b
c
U5ZA40C
2003-02-17
4
TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability
Handbook" etc..
The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer's own risk.
The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
The information contained herein is subject to change without notice.
000707EAA
RESTRICTIONS ON PRODUCT USE
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