SMAJ Datasheet, PDF (1/6 Pages) Jinan Gude Electronic Device – SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

®
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
A
K
Unidirectional
Bidirectional
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.
SMA
(JEDEC DO-214AC)
Table 1: Order Codes
Part Number
SMAJxxxA-TR
SMAJxxxCA-TR
Marking
See page 2
See page 2
Table 2: Absolute Maximum Rating (T_amb = 25°C)
Symbol
Parameter
P_{PP Peak pulse power dissipation (see note} ¹₎
T_j initial = T_amb
P Power dissipation on infinite heatsink
T_amb = 50°C
I_{FSM Non repetitive surge peak forward}
current for unidirectional types
t_p = 10 ms
T_j initial = T_amb
T_{stg Storage temperature range}
T_j Maximum junction temperature
T_L Maximum lead temperature for soldering during 10 s.
Note 1: for a surge greater than the maximum values, the diode will fail in short-circuit.
Value
Unit
400
W
3.3
W
40
A
-65 to 175
150
°C
260
°C
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
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