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SMAJXXXCA-TR

Description
TRANSIL
File Size97KB,6 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
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SMAJXXXCA-TR Overview

TRANSIL

®
SMAJ
TRANSIL™
FEATURES
Peak Pulse Power : 400 W (10/1000µs)
Stand off voltage range:
From 5V to 188V
Uni and Bidirectional types
Low clamping factor
Fast response time
JEDEC registered package outline
DESCRIPTION
The SMAJ series are TRANSIL
TM
diodes de-
signed specifically for protecting sensitive equip-
ment against transient overvoltages. The SMA
package allows save spacing on high density
printed circuit boards.
Transil diodes provide high overvoltage protection
by clamping action. Their instantaneous response
to transient overvoltages makes them particularly
suited to protect voltage sensitive devices such as
MOS Technology and low voltage supplied IC’s.
Table 2: Absolute Maximum Rating
(T
amb
= 25°C)
Symbol
P
PP
P
I
FSM
T
stg
T
j
T
L
Parameter
Peak pulse power dissipation (see note
1
)
Power dissipation on infinite heatsink
Non repetitive surge peak forward
current for unidirectional types
Storage temperature range
Maximum junction temperature
Maximum lead temperature for soldering during 10 s.
A
K
Unidirectional
Bidirectional
SMA
(JEDEC DO-214AC)
Table 1: Order Codes
Part Number
SMAJxxxA-TR
SMAJxxxCA-TR
Marking
See page 2
See page 2
Value
T
j
initial = T
amb
T
amb
= 50°C
t
p
= 10 ms
T
j
initial = T
amb
400
3.3
40
-65 to 175
150
260
Unit
W
W
A
°C
°C
Note 1:
for a surge greater than the maximum values, the diode will fail in short-circuit.
Table 3: Thermal Resistances
Symbol
Parameter
Rth(j-l) Junction to leads
Rth(j-a) Junction to ambient on printed circuit on recommended pad layout
Value
30
120
Unit
°C/W
°C/W
February 2006
REV. 8
1/6

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