Philips Semiconductors
Product specification
Triacs
BT138X series
GENERAL DESCRIPTION
Glass passivated triacs in a full pack
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 and static switching.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
BT138X-
BT138X-
BT138X-
Repetitive peak off-state
voltages
RMS on-state current
Non-repetitive peak on-state
current
MAX. MAX. MAX. UNIT
500
500F
500G
500
12
95
600
600F
600G
600
12
95
800
800F
800G
800
12
95
V
DRM
I
T(RMS)
I
TSM
V
A
A
PINNING - SOT186A
PIN
1
2
3
DESCRIPTION
main terminal 1
PIN CONFIGURATION
case
SYMBOL
T2
main terminal 2
gate
1 2 3
T1
case isolated
G
LIMITING VALUES
Limiting values in accordance with the Absolute Maximum System (IEC 134).
SYMBOL
V
DRM
I
T(RMS)
I
TSM
PARAMETER
Repetitive peak off-state
voltages
RMS on-state current
Non-repetitive peak
on-state current
I
2
t for fusing
Repetitive rate of rise of
on-state current after
triggering
full sine wave; T
hs
≤
56 ˚C
full sine wave; T
j
= 25 ˚C prior to
surge
t = 20 ms
t = 16.7 ms
t = 10 ms
I
TM
= 20 A; I
G
= 0.2 A;
dI
G
/dt = 0.2 A/µs
T2+ G+
T2+ G-
T2- G-
T2- G+
CONDITIONS
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-40
-
-500
500
1
MAX.
-600
600
1
12
95
105
45
50
50
50
10
2
5
5
0.5
150
125
-800
800
UNIT
V
A
A
A
A
2
s
A/µs
A/µs
A/µs
A/µs
A
V
W
W
˚C
˚C
I
2
t
dI
T
/dt
I
GM
V
GM
P
GM
P
G(AV)
T
stg
T
j
Peak gate current
Peak gate voltage
Peak gate power
Average gate power
Storage temperature
Operating junction
temperature
over any 20 ms period
1
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 15 A/µs.
September 1997
1
Rev 1.200
Philips Semiconductors
Product specification
Triacs
BT138X series
ISOLATION LIMITING VALUE & CHARACTERISTIC
T
hs
= 25 ˚C unless otherwise specified
SYMBOL
V
isol
PARAMETER
R.M.S. isolation voltage from all
three terminals to external
heatsink
CONDITIONS
f = 50-60 Hz; sinusoidal
waveform;
R.H.
≤
65% ; clean and dustfree
MIN.
-
TYP.
MAX.
2500
UNIT
V
C
isol
Capacitance from T2 to external f = 1 MHz
heatsink
-
10
-
pF
THERMAL RESISTANCES
SYMBOL
R
th j-hs
R
th j-a
PARAMETER
Thermal resistance
junction to heatsink
Thermal resistance
junction to ambient
CONDITIONS
full or half cycle
with heatsink compound
without heatsink compound
in free air
MIN.
-
-
-
TYP.
-
-
55
MAX.
4.0
5.5
-
UNIT
K/W
K/W
K/W
STATIC CHARACTERISTICS
T
j
= 25 ˚C unless otherwise stated
SYMBOL
I
GT
PARAMETER
Gate trigger current
CONDITIONS
BT138X-
V
D
= 12 V; I
T
= 0.1 A
T2+ G+
T2+ G-
T2- G-
T2- G+
V
D
= 12 V; I
GT
= 0.1 A
T2+ G+
T2+ G-
T2- G-
T2- G+
V
D
= 12 V; I
GT
= 0.1 A
I
T
= 15 A
V
D
= 12 V; I
T
= 0.1 A
V
D
= 400 V; I
T
= 0.1 A;
T
j
= 125 ˚C
V
D
= V
DRM(max)
;
T
j
= 125 ˚C
MIN.
TYP.
...
-
-
-
-
-
-
-
-
-
-
-
0.25
-
5
8
10
22
7
20
8
10
6
1.4
0.7
0.4
0.1
35
35
35
70
40
60
40
60
30
MAX.
...F
25
25
25
70
40
60
40
60
30
1.65
1.5
-
0.5
...G
50
50
50
100
60
90
60
90
60
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
mA
UNIT
I
L
Latching current
I
H
V
T
V
GT
I
D
Holding current
On-state voltage
Gate trigger voltage
Off-state leakage current
September 1997
2
Rev 1.200
Philips Semiconductors
Product specification
Triacs
BT138X series
DYNAMIC CHARACTERISTICS
T
j
= 25 ˚C unless otherwise stated
SYMBOL
dV
D
/dt
PARAMETER
Critical rate of rise of
off-state voltage
Critical rate of change of
commutating voltage
Gate controlled turn-on
time
CONDITIONS
BT138X-
V
DM
= 67% V
DRM(max)
;
T
j
= 125 ˚C; exponential
waveform; gate open
circuit
V
DM
= 400 V; T
j
= 95 ˚C;
I
T(RMS)
= 12 A;
dI
com
/dt = 5.4 A/ms; gate
open circuit
I
TM
= 16 A; V
D
= V
DRM(max)
;
I
G
= 0.1 A; dI
G
/dt = 5 A/µs
...
100
MIN.
...F
50
...G
200
TYP.
250
MAX.
-
UNIT
V/µs
dV
com
/dt
-
-
10
20
-
V/µs
t
gt
-
-
-
2
-
µs
September 1997
3
Rev 1.200
Philips Semiconductors
Product specification
Triacs
BT138X series
20
Ptot / W
BT138
Ths(max) / C
= 180
45
15
IT(RMS) / A
BT138X
56 C
65
15
1
120
90
60
10
85
10
30
5
5
105
0
0
5
IT(RMS) / A
10
125
15
0
-50
0
50
Ths / C
100
150
Fig.1. Maximum on-state dissipation, P
tot
, versus rms
on-state current, I
T(RMS)
, where
α
= conduction angle.
BT138
Fig.4. Maximum permissible rms current I
T(RMS)
,
versus heatsink temperature T
hs
.
1000
ITSM / A
25
IT(RMS) / A
BT138
20
15
100
dI
T
/dt limit
T2- G+ quadrant
IT
T
10
10us
I TSM
time
10
5
Tj initial = 25 C max
100us
1ms
T/s
10ms
100ms
0
0.01
0.1
1
surge duration / s
10
Fig.2. Maximum permissible non-repetitive peak
on-state current I
TSM
, versus pulse width t
p
, for
sinusoidal currents, t
p
≤
20ms.
ITSM / A
BT138
IT
80
T
ITSM
time
Fig.5. Maximum permissible repetitive rms on-state
current I
T(RMS)
, versus surge duration, for sinusoidal
currents, f = 50 Hz; T
hs
≤
56˚C.
VGT(Tj)
VGT(25 C)
100
1.6
1.4
1.2
1
BT136
Tj initial = 25 C max
60
40
0.8
20
0.6
0.4
-50
0
1
10
100
Number of cycles at 50Hz
1000
0
50
Tj / C
100
150
Fig.3. Maximum permissible non-repetitive peak
on-state current I
TSM
, versus number of cycles, for
sinusoidal currents, f = 50 Hz.
Fig.6. Normalised gate trigger voltage
V
GT
(T
j
)/ V
GT
(25˚C), versus junction temperature T
j
.
September 1997
4
Rev 1.200
Philips Semiconductors
Product specification
Triacs
BT138X series
3
2.5
2
1.5
1
IGT(Tj)
IGT(25 C)
BT138
T2+ G+
T2+ G-
T2- G-
T2- G+
40
IT / A
Tj = 125 C
Tj = 25 C
BT138
typ
max
30
Vo = 1.175 V
Rs = 0.0316 Ohms
20
10
0.5
0
-50
0
0
50
Tj / C
100
150
0
0.5
1
1.5
VT / V
2
2.5
3
Fig.7. Normalised gate trigger current
I
GT
(T
j
)/ I
GT
(25˚C), versus junction temperature T
j
.
IL(Tj)
IL(25 C)
Fig.10. Typical and maximum on-state characteristic.
3
2.5
2
1.5
1
TRIAC
10
Zth j-hs (K/W)
BT138
with heatsink compound
without heatsink compound
1
unidirectional
0.1
P
D
tp
bidirectional
0.01
0.5
0
-50
0.001
10us
0.1ms
1ms
10ms
tp / s
0.1s
1s
t
0
50
Tj / C
100
150
10s
Fig.8. Normalised latching current I
L
(T
j
)/ I
L
(25˚C),
versus junction temperature T
j
.
IH(Tj)
IH(25C)
Fig.11. Transient thermal impedance Z
th j-hs
, versus
pulse width t
p
.
dV/dt (V/us)
off-state dV/dt limit
BT138...G SERIES
BT138 SERIES
3
2.5
2
1.5
1
0.5
TRIAC
1000
100
BT138...F SERIES
dIcom/dt =
15 A/ms
10
12
9.1
7
5.4
4.2
0
-50
0
50
Tj / C
100
150
1
0
50
Tj / C
100
150
Fig.9. Normalised holding current I
H
(T
j
)/ I
H
(25˚C),
versus junction temperature T
j
.
Fig.12. Typical commutation dV/dt versus junction
temperature, parameter commutation dI
T
/dt. The triac
should commutate when the dV/dt is below the value
on the appropriate curve for pre-commutation dI
T
/dt.
September 1997
5
Rev 1.200
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