T1235T-8T

This is information on a product in full production.
July 2014 DocID024572 Rev 3 1/9
9
T1235T-8T
12 A Snubberless™ Triac
Datasheet production data
Features
Medium current Triac
High static and dynamic commutation
Three quadrants
ECOPACK
®
2 compliant component
Applications
General purpose AC line load switching
Motor control circuits
Small home appliances
Lighting
Inrush current limiting circuits
Overvoltage crowbar protection
Description
Available in through-hole package, the
T1235T-8T Triac can be used for the on/off or
phase angle control function in general purpose
AC switching where high commutation capability
is required. This device can be used without a
snubber circuit when the limits defined in this
datasheet are respected.
TM: Snubberless is a trademark of STMicroelectronics
Table 1. Device summary
Symbol Value Unit
I
T(rms)
12 A
V
DRM
, V
RRM
800 V
V
DSM
, V
RSM
900 V
I
GT
35 mA
A2
A1
G
A1
A2
A2
G
TO-220AB
(T1235T-8T)
www.st.com
Characteristics T1235T-8T
2/9 DocID024572 Rev 3
1 Characteristics
Table 2. Absolute ratings (limiting values, T
j
= 25 °C unless otherwise stated)
Symbol Parameter Value Unit
I
T(rms)
On-state rms current (full sine wave) T
c
= 131 °C 12 A
I
TSM
Non repetitive surge peak on-state
current (full cycle, T
j
initial = 25 °C)
F = 50 Hz t = 20 ms 90
A
F = 60 Hz t = 16.7 ms 95
I
²
tI
²
t value for fusing, T
j
initial = 25 °C t
p
= 10 ms 54 A
²
s
V
DRM
,
V
RRM
Repetitive surge peak off-state voltage
T
j
= 150 °C 600
V
T
j
= 125 °C 800
V
DSM
,
V
RSM
Non repetitive surge peak off-state voltage t
p
= 10 ms 900 V
dI/dt
Critical rate of rise of on-state current
I
G
= 2 x I
GT
, t
r
100 ns
F = 100 Hz 100 A/µs
I
GM
Peak gate current t
p
= 20 µs T
j
= 150 °C 4 A
P
G(AV)
Average gate power dissipation T
j
= 150 °C 1 W
T
stg
T
j
Storage junction temperature range
Operating junction temperature range
- 40 to + 150
- 40 to + 150
°C
T
L
Maximum lead temperature for soldering during 10 s 260 °C
Table 3. Electrical characteristics (T
j
= 25 °C, unless otherwise specified)
Symbol Test conditions Quadrant Value Unit
I
GT
(1)
1. Minimum I
GT
is guaranteed at 5% of I
GT
max.
V
D
= 12 V, R
L
= 30 Ω I - II - III
Min. 1.75
mA
Max. 35
V
GT
V
D
= 12 V, R
L
= 30 Ω
I - II - III Max. 1.3 V
V
GD
V
D
= V
DRM
, R
L
= 3.3 kΩ, T
j
= 125 °C I - II - III Min. 0.2 V
I
H
(2)
2. For both polarities of A2 referenced to A1
I
T
= 500 mA Max. 40 mA
I
L
I
G
= 1.2 I
GT
I - III
Max.
60
mA
II 65
dV/dt
V
D
= 536 V, gate open T
j
= 125 °C
Min.
2000 V/µs
V
D
= 402 V, gate open T
j
= 150 °C 1000 V/µs
(dI/dt)c
Without snubber (dV/dt)c > 20 V/µs)
T
j
= 125 °C
Min.
12
A/ms
T
j
= 150 °C 6
DocID024572 Rev 3 3/9
T1235T-8T Characteristics
Table 4. Static characteristics
Symbol Test conditions Value Unit
V
T
(1)
I
TM
= 17 A, t
p
= 380 µs T
j
= 25 °C Max. 1.55 V
V
t0
(1)
Threshold voltage T
j
= 150 °C Max. 0.85 V
R
d
(1)
Dynamic resistance T
j
= 150 °C Max. 37 mΩ
I
DRM
I
RRM
V
DRM
= V
RRM
= 800 V
T
j
= 25 °C
Max.
7.5 µA
T
j
= 125 °C 1
mA
V
DRM
= V
RRM
= 600 V T
j
= 150 °C Max. 2.7
1. For both polarities of A2 referenced to A1
Table 5. Thermal resistance
Symbol Parameter Value Unit
R
th(j-c)
Junction to case (AC) 1.3 °C/W
R
th(j-a)
Junction to ambient 60 °C/W
Figure 1. Maximum power dissipation versus
on-state rms current (full cycle)
Figure 2. On-state rms current versus case
temperature (full cycle)
P(W)
0
2
4
6
8
10
12
14
16
024681012
180°
I(A)
T(RMS)
I(A)
T(RMS)
0
2
4
6
8
10
12
14
0 25 50 75 100 125 150
T (°C)
C
Figure 3. On-state rms current versus ambient
temperature (free air convection)
Figure 4. Relative variation of thermal
impedance versus pulse duration
I(A)
T(RMS)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 25 50 75 100 125 150
T (°C)
a
K = [Z
th
/ R
th
]
1.0E-02
1.0E-01
1.0E+00
1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04
Z
th(j-c)
Z
th(j-a)
t
p
(s)

T1235T-8T

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Triacs 12A Snubberless Triac 800V rms 35mA
Lifecycle:
New from this manufacturer.
Delivery:
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