Document
T1235H, T1250H
High temperature 12 A Snubberless™ Triacs
Features
■ Medium current Triac ■ 150 °C max. Tj turn-off commutation ■ Low thermal resistance with clip bonding ■ Very high 3 quadrant commutation capability ■ Packages are RoHS (2002/95/EC) compliant ■ UL certified (ref. file E81734)
Applications
Especially designed to operate in high power density or universal motor applications such as vacuum cleaner and washing machine drum motor, these 12 A Triacs provide a very high switching capability up to junction temperatures of 150 °C.
The heatsink can be reduced, compared to traditional Triacs, according to the high performance at given junction temperatures.
Description
Available in through-hole or surface mount packages, the T1235H and T1250H Triac series are suitable for general purpose mains power ac switching.
By using an internal ceramic pad, the T12xxH-6I provides voltage insulation (rated at 2500 V rms).
A2
G
A2
A1 A2
A2 G
A1
D2PAK T12xxH-6G
G A2 A1
TO-220AB T12xxH-6T
G A2 A1
TO-220AB Insulated T12xxH-6I
Table 1. Device summary
Symbol
Value
Unit
IT(RMS)
12
A
VDRM/VRRM
600
V
IGT
35 or 50
mA
TM: Snubberless is a trademark of STMicroelectronics
September 2011
Doc ID 13574 Rev 2
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Characteristics
1
Characteristics
T1235H, T1250H
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
IT(RMS) On-state rms current (full sine wave)
ITSM
Non repetitive surge peak on-state current (full cycle, Tj initial = 25 °C)
I²t
I²t Value for fusing
dI/dt
Critical rate of rise of on-state current IG = 2 x IGT , tr ≤ 100 ns
VDSM/VRSM
Non repetitive surge peak off-state voltage
D2PAK, TO-220AB Tc = 130 °C 12
TO-220AB Ins
Tc = 120 °C
F = 50 Hz
t = 20 ms
120
F = 60 Hz
t = 16.7 ms
126
tp = 10 ms
95
F = 120 Hz
Tj = 150 °C
50
tp = 10 ms
Tj = 25 °C
VDRM/VRRM + 100
IGM
PG(AV)
Tstg Tj
Peak gate current
Average gate power dissipation
Storage junction temperature range Operating junction temperature range
tp = 20 µs
Tj = 150 °C Tj = 150 °C
4
1
- 40 to + 150 - 40 to + 150
Unit A
A A2s A/µs V A W °C
Table 3. Symbol
Electrical characteristics (Tj = 25 °C, unless otherwise specified)
Test conditions
Quadrant
Value T1235H T1250H
IGT (1) VGT VGD IH (2)
VD = 12 V, RL = 33 Ω
VD = VDRM, RL = 3.3 kΩ IT = 500 mA
IL
IG = 1.2 IGT
dV/dt (2) (dI/dt)c (2)
VD = 67% VDRM, gate open, Tj = 150 °C Without snubber, Tj = 150 °C
I - II - III I - II - III I - II - III
I - III II
MAX. MAX. MIN. MAX.
MAX.
MIN. MIN.
35
50
1.0
0.15
35
75
50
90
80
110
1000 1500
16
21
1. minimum IGT is guaranted at 20% of IGT max. 2. for both polarities of A2 referenced to A1.
Unit
mA V V mA
mA
V/µs A/ms
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Doc ID 13574 Rev 2
T1235H, T1250H
Characteristics
Table 4. Static characteristics
Symbol
VT (1) Vt0 (1) Rd (1)
ITM = 17 A, tp = 380 µs Threshold voltage Dynamic resistance
Test conditions
IDRM IRRM (2)
VDRM = VRRM VD/VR = 400 V (at peak mains voltage)
VD/VR = 200 V (at peak mains voltage).