UNISONIC TECHNOLOGIES CO., LTD
UT138E
TRIACS
DESCRIPTION
Glass passivated , sensitive gate triacs in a plastic envelope,
intended for use in general purpose bidirectional switching and
phase control applications, where high sensitivity is required in all
four quadrants.
TRIAC
SYMBOL
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UT138EL-x-TA3-T
UT138EG-x-TA3-T
Package
TO-220
Pin Assignment
1
2
3
MT1 MT2
G
Packing
Tube
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QW-R401-011.C
UT138E
ABSOLUTE MAXIMUM RATING
(T
J
=25°C)
PARAMETER
SYMBOL
TRIAC
RATINGS
UT138E-5
500
Repetitive Peak Off State Voltag
UT138E-6
V
DRM
600
UT138E-8
800
RMS On-state Current (Full sine wave, T
MB
≤99°C)
I
T(RMS)
12
95
Non-Repetitive Peak. On-State Current t=20mS
I
TSM
(Full sine wave, T
J
=25°C prior to surge) t=16.7mS
105
2
2
I t For Fusing (t=10ms)
It
45
50
T2+ G+
Repetitive Rate of Rise of On-state
T2+ G-
50
Current After Triggering
dI
T
/dt
T2- G-
50
(I
TM
=20A, I
G
=0.2A, dI
G
/dt=0.2A/μs)
T2- G+
10
Peak Gate Voltage
V
GM
5
Peak Gate Current
I
GM
2
Peak Gate Power
P
GM
5
Average Gate Power (Over any 20ms period)
P
G(AV)
0.5
Operating Junction Temperature
T
J
125
Storage Temperature
T
STG
-40~150
Notes: Although not recommended, off-state voltages up to 800V may be applied without damage, but
may switch to the on-state. The rate of rise of current should not exceed 15A/μs.
UNIT
V
V
V
A
A
A
A
2
s
A/μs
A/μs
A/μs
A/μs
V
A
W
W
°C
°C
the triac
THERMAL RESISTANCES
PARAMETER
Thermal Resistance, Junction to Full cycle
Mounting Base
Half cycle
Thermal Resistance, Junciton to Ambient In free air
SYMBOL
θ
JC
θ
JA
60
MIN
TYP
MAX
1.5
2.0
UNIT
K/W
K/W
STATIC CHARACTERISTICS
(T
J
=25°C, unless otherwise specified)
PARAMETER
Gate Trigger Current
SYMBOL
I
GT
TEST CONDITIONS
T2+ G+
T2+ G-
V
D
=12V, I
T
=0.1A
T2- G-
T2- G+
T2+ G+
T2+ G-
V
D
=12V, I
GT
=0.1A
T2- G-
T2- G+
V
D
=12V, I
GT
=0.1A
I
T
=15A
V
D
=12V, I
T
=0.1A
V
D
=400V, I
T
=0.1A, T
J
=125°C
V
D
=V
DRM(max)
, T
J
=125°C
MIN
TYP
2.5
4.0
5.0
11
3.2
16
4.0
5.5
4.0
1.4
0.7
0.4
0.1
MAX
10
10
10
25
30
40
30
40
30
1.65
1.5
0.5
UNIT
mA
Latching Current
Holding Current
On-State Voltage
Gate Trigger Voltage
Off-state Leakage Current
I
L
I
H
V
T
V
GT
I
D
mA
mA
V
V
V
mA
0.25
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QW-R401-011.C
UT138E
DYNAMIC CHARACTERISTICS
(T
J
=25°C, unless otherwise specified)
PARAMETER
Critical Rate Of Rise Of Off-State
Voltage
Gate Controlled Turn-on Time
SYMBOL
TEST CONDITIONS
V
DM
=67% V
DRM(max)
, T
J
=125°C
dV
D
/dt Exponential waveform,
Gate open circuit
I
TM
=16A, V
D
=V
DRM(max)
,
t
gt
I
G
=0.1A dI
G
/dt=5A/μs
MIN
TYP
50
2
MAX
TRIAC
UNIT
V/μs
μs
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UT138E
TYPICAL CHARACTERISTICS
TRIAC
Figure 3 .Maximum Permissible Non-Repetitive Figure 4. Maximum Permissible RMS Current I
T(RMS)
Peak On-State Current I
TSM
, vs Number of Cycles,
vs Mounting Base Temperature T
mb
for Sinusoidal Currents, f=50Hz.
I
/A
I
TSM
/A
15
T(RMS)
100
I
TSM
I
T
99℃
time
80
60
40
20
0
1
1000
0
0
T
T
J
initial=25℃max
10
5
100
10
Number of Cycles at 50Hz
-50
50
T
mb
/℃
100
150
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QW-R401-011.C
UT138E
TYPICAL CHARACTERISTICS(Cont.)
TRIAC
Figure 11. Transient Thermal Impedance
Z
th j-mb
, vs Pulse Width t
p
Z
th j-mb
(K/W)
10
Figure 12. Typical Critical Rate of Rise of Off-State
Voltage, dV
D
/dt Versus Junction Temperature T
J
dV
D
/dt(V/us)
1000
1
unidirectional
100
bidirectional
0.1
0.01
P
D
t
p
t
1s
10s
10
0.001
10us 0.1ms 1ms 10ms 0.1s
t
p
/s
1
0
50
T
J
/
100
150
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