UTC BT138
TRIACS LOGIC LEVEL
DESCRIPTION
Passivated triacs in a plastic envelope, intended for use in
applications requiring high bidirectional transient and blocking
voltage capability and high thermal cycling performance. Typical
applications include motor control, industrial and domestic
lighting, heating voltages and static switching
.
1
TRIAC
SYMBOL
MT2
TO-220
G
MT1
1:MT1
2:MT2
3:GATE
ABSOLUTE MAXIMUM RATINGS
( Tj=25°C)
PARAMETER
Repetitive Peak Off State Voltage
BT138-600
BT138-800
RMS On-state Current (Full sine wave; Tmb≤99°C)
Non-repetitive Peak. On-State Current
(Full sine wave; Tj=25°C prior to surge)
t=20ms
t=16.7ms
SYMBOL
V
DRM
RATING
600
800
12
UNIT
V
A
A
I
T(RMS)
I
TSM
I
2
t For Fusing (t=10ms)
I
2
t
A
2
s
Repetitive Rate of Rise of On-state Current after Triggering
dI
T
/dt
(I
TM
=20A;I
G
=0.2A; dI
G
/dt=0.2A/µs)
50
T2+G+
A/µs
50
T2+G-
50
T2-G-
10
T2-G+
Peak Gate Voltage
V
GM
5
V
Peak Gate Current
I
GM
2
A
Peak Gate Power
P
GM
5
W
Average Gate Power
P
G(AV)
0.5
W
Operating Junction Temperature
Tj
125
°C
Storage Temperature
Tstg
-40~150
°C
*Although not recommended, off-state voltages up to 800V may be applied without damage, but the triac may switch
to the on-state. The rate of rise of current should not exceed 15A/µs.
95
105
45
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R401-002,A
UTC BT138
THERMAL RESISTANCES
PARAMETER
Thermal Resistance, Junction to Mounting Base
Full cycle
Half cycle
Thermal Resistance, Junciton to Ambient
In free air
TRIAC
SYMBOL
Rθj-mb
Rθj-a
60
MIN
TYP
MAX
1.5
2.0
-
UNIT
°C
/W
°C
/W
STATIC CHARACTERISTICS
(Tj=25°C,unless otherwise specified)
PARAMETER
Gate Trigger Current
T2+G+
T2+G-
T2-G-
T2-G+
Latching Current
T2+G+
T2+G-
T2-G-
T2-G+
Holding Current
On-State Voltage
Gate Trigger Voltage
Off-state Leakage Current
I
L
I
GT
SYMBOL
TEST CONDITIONS
V
D
=12V, I
T
=0.1A
MIN
TYP
5
8
10
12
MAX
35
35
35
70
40
60
40
60
30
1.65
1.5
0.5
UNIT
mA
V
D
=12V, I
GT
=0.1A
7
20
8
10
6
1.4
0.25
0.7
0.4
0.1
mA
I
H
V
T
V
GT
I
D
V
D
=12V, I
GT
=0.1A
I
T
=15A
V
D
=12V, I
T
=0.1A
V
D
=400V, I
T
=0.1A, Tj=125°C
V
D
=V
DRM(max)
,
Tj=125°C
mA
V
V
mA
DYNAMIC CHARACTERISTICS
(Tj=25°C,unless otherwise specified)
PARAMETER
Critical Rate Of Rise Of Off-State
Voltage
Critical Rate Of Change
Of Commutating Voltage
Gate Controlled Turn-on Time
SYMBOL
dV
D
/dt
TEST CONDITIONS
V
DM
=67% V
DRM(max)
, Tj=125°C
Exponential waveform,
Gate open circuit
V
DM
=400V,Tj=95°C, I
T(RMS)
=12A
dl
com
/dt =5.4A/ms,
Gate open circuit
I
TM
=16A, V
D
=V
DRM(max)
,
I
G
=0.1A dI
G
/dt=5A/µs
MIN
100
TYP MAX
250
UNIT
V/µs
20
V/µs
dV
com
/dt
tgt
2
µs
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R401-002,A
UTC BT138
TYPICAL CHARACTERISTICS
Figure 1.Maximum on -state Dissipation.Ptot vs RMS
On-state Current,I
T(RM S )
,W here
α
=conduction Angle.
20
Ptot/W
T mb(max)/C
95
15
TRIAC
Figure 4.Maximum Permissible RMS Current I
T(RM S )
vs mounting baseT emperature T
m b
IT (RMS)/A
α
=180
15
α
α
α
=120 102.5
α
=90
α
=60
α
=30
110
99
℃
10
10
5
5
117.5
0
0
5
IT (RMS)/A
10
125
15
0
-50
0
50
T mb/
℃
100
150
1000
Figure 2. Maximum Permissible Non-repetitive
Peak O n-state Current I
TS M
,vs Pulse W idth
t
p
,for Sinusoidal Currents,t
p
≒
20ms
IT SM/A
25
20
15
Figure 5.Maximum Permissible Repetitive RMS on-state
Current IT (RMS),vs Surge Duration,for Sinusoidal
C urrents,f=50Hz;T mb
≒
99
℃
IT (RMS)/A
100
dI
T
/dt limit
T 2-G + quadrant
10
10us
100us
1ms
T /s
I
T
T
Tj initial= 25
℃
m ax
I
TSM
time
10
5
0
0.01
10ms
100ms
0.1
1
Surge Duration /S
10
100
80
Figure 3 .Maximum Permissible Non-Repetitive
peak on-state Current I
TSM
,vs Number of Cycles,
for Sinusoidal Currents,f=50Hz
IT SM/A
I
T
I
TS M
time
T
Tj initial=25
℃
m ax
Figure 6.Normalised G ate T rigger Voltage V
GT
(T j)/
V
GT
(25
℃
),vs Junction T emperature T j
V
GT
(T j
)
1.6
1.4
1.2
1
V
GT
(25
℃)
60
40
20
0
0.8
0.6
0.4
-50
0
50
T j/
℃
100
150
1
100
10
Number of Cycles at 50Hz
1000
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R401-002,A
UTC BT138
Figure 7.Normalised Gate Trigger Current
I
GT
(T j)/I
GT
(25
℃
),vs Junction T emperature Tj
40
T2+G+
T2+G -
T2-G-
T1-G +
IT/A
Tj=125
℃
30
Tj=25
℃
Vo=1.75V
Rs=0.316Ohms
20
typ
Figure 10.Typical and Maximum
O n-state Characteristic
TRIAC
3
2.5
2
1.5
1
I
GT
(T j
)
I
GT
(25
℃)
max
10
0.5
0
-50
0
50
Tj/
℃
100
150
0
0
0.5
1
1.5
VT /V
2
2.5
3
I
L
(T j
)
3
2.5
2
1.5
1
I
L
(25
℃)
Figure 8.Normalised Latching Current
I
L
(T j)/I
L
(25
℃
),vs Junction T emperature T j
10
Figure 11.Transient Thermal Impedance
Zth j-mb,vs Pulse W idth tp
Zth j-mb (K/W )
1
unidirectional
bidirectional
0.1
0.01
0.5
0
-50
0
50
Tj/
℃
Figure 9.Normalised Holding Current
I
H
(T j)/I
H
(25
℃
),vs Junction Temperature Tj
I
H
(Tj
)
3
2.5
2
1.5
1
0.5
0
-50
0
1
50
Tj/
℃
100
150
0
50
Tj/
℃
10
100
I
H
(25
℃)
100
150
0.001
10us
0.1ms
1ms
10ms
tp/s
P
D
tp
t
0.1s
1s
10s
Figure 12.T ypical commutation dV/dt vs junction
temperature,parameter commutation dl
T
/dt.The triac should
commutate when the dV/dt is below the value on the
appropriate curve for pre-commutation dl
T
/dt
dV/dt(V/us)
1000
dIcom/dt=5.4A/ms
100
150
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R401-002,A
UTC BT138
TRIAC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R401-002,A
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