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PDF SM4T12 Data sheet ( Hoja de datos )
| Número de pieza | SM4T12 | |
| Descripción | TRANSIL | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SM4T12 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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SM4T6V8,A/220,A
SM4T6V8C,CA/220C,CA
TRANSIL
FEATURES
. PEAK PULSE POWER= 400 W @ 1ms.
. BREAKDOWN VOLTAGE RANGE :
From 6V8 to 220 V.
. UNI AND BIDIRECTIONAL TYPES.
. LOW CLAMPING FACTOR.
. FAST RESPONSE TIME:
Tclamping : 1ps (0 V to VBR).
. JEDEC REGISTRED.
SOD 6
(Plastic)
DESCRIPTION
Transil diodes provide high overvoltage
protection by clamping action. Their
instantaneous reponse to transients makes them
praticularly suited to protect voltage sensitive
devices such as MOS Technology and low
voltage supplied IC’s.
.MECHANICAL CHARACTERISTICS
Body marked with : Logo, Date Code, Type
Code and Cathode Band (for unidirectional
types only).
. Full compatibility with both gluing and paste
soldering technologies.
. Excellent on board stability.
. Tinned copper leads.
. High temperature resistant resin.
ABSOLUTE RATINGS (limiting values)
Symbol
Parameter
Pp Peak pulse power dissipation
See note 1 and derating curve Fig 1.
P Power dissipation on infinite heatsink
See note 1 and derating curve Fig 1.
IFSM
Non repetitive surge peak forward current.
For unidirectional types.
Tstg Storage and junction temperature range
Tj
TL Maximum lead temperature for soldering
during 10 s.
Tamb = 25°C
Tlead = 50°C
Tamb = 25°C
t =10 ms
Value
400
5
50
- 65 to + 175
150
260
Unit
W
W
A
°C
°C
°C
November 1992
1/7
1 page  
SM4Txx
Figure 4a : Capacitance versus reverse applied
voltage for unidirectional types (typical values).
Figure 4b : Capacitance versus reverse applied
voltage for bidirectional types (typical values)
C (pF)
10000
SM4T6V8A
1000 SM4T 15A
SM4T 30A
SM4T 68A
100 SM4T 220A
10
1 10
Tj = 25˚C
f = 1 MHz
V R (V)
100
C (pF)
10000
SM4T6V8CA
1000 SM4T 15CA
SM4T 30CA
SM4T 68CA
100
SM4T 220CA
10
1 10
Tj = 25˚C
f = 1 MHz
V R (V)
100
Figure 5 : Peak forward voltage drop versus
peak forward current (typical values for
unidirectional types).
Figure 6 : Transient thermal impedance
junction-ambient versus pulse duration. For a
mounting on PC Board with standard footprint
dimensions.
ZTH j-a ( ˚C/W )
100
10
1
0.01
0.1
1
10 100 1000
5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SM4T12.PDF ] | |
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