SM15T Datasheet, PDF (1/9 Pages) General Semiconductor – TRANSZORB™ SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

SM15T
TRANSIL™
Features
■ Peak pulse power: 1500 W (10/1000 µs)
■ Breakdown voltage range: from 6.8 V to 220 V
■ Uni and bidirectional types
■ Low clamping factor
■ Fast response time
■ UL recognized
Description
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.
A
K
Unidirectional
Bidirectional
SMC
(JEDEC DO-214AB)
Order code
Part number
SM15TxxxA
SM15TxxxCA
Marking
See Table 5 on page 7
See Table 5 on page 7
Table 1.
Symbol
Absolute maximum ratings (T_amb = 25° C)
Parameter
P_PP
P
I_FSM
T_stg
T_j
T_L
Peak pulse power dissipation⁽¹⁾
Power dissipation on infinite heatsink
Non repetitive surge peak forward current for unidirectional
types
Storage temperature range
Maximum operating junction temperature
Maximum lead temperature for soldering during 10 s.
T_{j initial} = T_amb
T_amb = 50° C
t_p = 10ms
T_{j initial} = T_amb
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Table 2. Thermal parameter
Symbol
Parameter
R_th(j-l)
R_th(j-a)
Junction to leads
Junction to ambient on printed circuit on recommended pad layout
Value
1500
6.5
200
-65 to + 175
150
260
Value
15
75
Unit
W
W
A
°C
°C
°C
Unit
°C/W
°C/W
TM: TRANSIL is a trademark of STMicroelectronics
February 2007
Rev 4
1/9
www.st.com
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