800 V and 600 V, 40 A standard Triacs in TOP3 and RD91 package
Features
•High current Triac
•Low thermal resistance
•BTA40 and BTA41 UL1557 recognized components (file ref: 81734)
•RoHS (2002/95/EC) compliant packages
•UL-94, V0 flammability package resin compliance
Applications
•On/off function in static relays, heating regulation, induction motor starting
circuits
•Phase control operations in light dimmers and motor speed controllers
Product status link
BTA40RD91 package
BTA41
TOP3 isolated
package
BTB41TOP3 package
Product summary
I
T(RMS)
V
DRM/VRRM
I
GT
40 A
600 V to 800 V
50 mA
Description
Available in power packages, the BTA40, BTA41 and BTB41 are suitable for general
purpose AC switching.
When used with the properly dimensioned heatsink, the BTA40, BTA41 and BTB41
can enable AC switching systems up to 9 kW. Refer to ST Application Note AN533
for thermal management of Triacs.
The BTA40, BTA41 and BTB41 provides an insulated tab (rated at 2500 V rms). They
are recognized by UL. Representative samples of these components have been
evaluated by UL and meet applicable UL requirements for UL 1557 standard (File
Ref. 81734).
DS2111 - Rev 11 - March 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
Page 2
1Characteristics
SymbolParametersValueUnit
I
T(RMS)
I
TSM
I2tI2t value for fusing
dl/dt
V
, V
DSM
I
GM
P
G(AV)
T
stg
T
RMS on-state current (180° conduction angle)
Non repetitive surge peak on-state current (full cycle, Tj initial = 25 °C)
Critical rate of rise of on-state current
IG = 2 x IGT , tr ≤ 100 ns
Non repetitive surge peak off-state voltage
RSM
Peak gate current
Average gate power dissipation
Storage junction temperature range-40 to +150°C
Operating junction temperature range-40 to +125°C
j
Table 1. Absolute maximum ratings
BTA40, BTA41
BTB41
tp = 10 ms
f = 120 Hz
tp = 20 msTj = 25 °CV
tp = 20 µsTj = 125 °C
BTA40, BTA41, BTB41
Characteristics
Tc = 80 °C
Tc = 95 °C
tp = 16,7 ms
tp = 20 ms
Tj = 125 °C
Tj = 125 °C
40A
420
400
1000
50A/µs
, V
DRM
RRM
8A
1W
+ 100
A
A2s
V
Table 2. Electrical characteristics (Tj = 25 °C, unless otherwise specified) - standard (4 quadrants)
Symbol
(1)
I
GT
V
GT
V
GD
(2)
I
H
I
L
dV/dt
(dV/dt)c
VD = 12 V, RL = 33 Ω
VD = V
, RL = 3.3 kΩ, Tj = 125 °C
DRM
IT = 500 mA
IG = 1.2 I
(2)
VD = 67 % V
(2)
(dI/dt)c = 20 A/ms, Tj = 125 °C
GT
DRM
1. Minimum IGT is guaranteed at 5 % of IGT max.
2. For both polarities of A2 referenced to A1
ParametersQuadrantValuesUnit
I - II - III
IV
Max.
100
I - II - IIIMax.1.3V
I - II - IIIMin.0.2V
Max.80mA
I - III - IVMax.70
IIMax.160
gate open, Tj = 125 °C
Min.500V/µs
Min.10V/µs
Table 3. Static electrical characteristics
Symbol
(1)
V
TM
(1)
V
TO
(1)
R
D
I
DRM/IRRM
1. For both polarities of A2 referenced to A1
ITM = 60 A, tp = 380 µs
threshold on-state voltage125 °CMax.0.85V
Dynamic resistance125 °CMax.10mΩ
VT = V
DRM
Test conditions
, VT = V
RRM
T
j
ValueUnit
25 °CMax.1.55V
25 °C
125 °C5mA
Max.
5µA
50
mA
mA
DS2111 - Rev 11
page 2/12
Page 3
BTA40, BTA41, BTB41
Characteristics
Table 4. Thermal resistance
SymbolParametersValueUnit
R
R
th(j-c)
th(j-a)
Junction to case (AC)
Junction to ambientBTA40 / BTA41 / BTB4150
BTA40 / BTA410.9
BTB410.6
°C/W
DS2111 - Rev 11
page 3/12
Page 4
1.1Characteristics (curves)
0510152025303540
0
10
20
30
40
50
P(W)
I
T(RMS)
(A)
180°
α
α
I
T(RMS)
(A)
0
5
10
15
20
25
30
35
40
45
0255075100125
α=180°
BTA40
BTA41
BTB41
TC(°C)
E-031.1.E-02E-011.E+001.E+011.E+021.E+031.
E-031.
E-021.
E-011.
E+001.
K=[Zth/R
th
]
t
p
(s)
Z
th(j-a)
BTA / BTB41
Z
th(j-c)
0.51.01.52.02.53.03.54.04.55.0
1
10
100
400
ITM(A)
V
TM
(V)
Tj= 25°C.
T max.
V = 0.85V
j
to
R = 10 mdΩ
j
T = Tjmax.
1100101000
0
50
100
150
200
250
300
350
400
450
I
TSM
(A)
Number of cycles
t=20ms
One cycle
Non repetitive
Tjinitial=25°C
Repetitive
T
C
=70°C
0.010.101.0010.00
100
1000
10000
I
TSM
(A), I²t (A²s)
tp(ms)
Pulse width tp < 10 ms
j
T initial=25 °C
I
TSM
dI/dt limitation:
50A/µs
BTA40, BTA41, BTB41
Characteristics (curves)
Figure 1. Maximum power dissipation versus on-state
RMS current (full cycle)
Figure 3. Relative variation of thermal impedance versus
pulse duration
Figure 2. RMS on-state current versus case temperature
Figure 5. Surge peak on-state current versus number of
cycles
DS2111 - Rev 11
Figure 6. Non-repetitive surge peak on-state current for a
sinusoidal pulse
page 4/12
Page 5
-40-20020406080100120140
0.0
0.5
1.0
1.5
2.0
2.5
Tj(°C)
I
GT
IH& I
L
GT
I ,HI ,LI [jT ] / IGT,IH,IL[Tj=25°C]
Typical values
0.11.010.0100.0
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
(dV/dt)c (V/µs)
(dI/dt)c [(dV/dt)c] / specified (dI/dt)c
0255075100125
0
1
2
3
4
5
6
(dI/dt)c [Tj] / (dI/dt)c [Tjspecified]
Tj(°C)
BTA40, BTA41, BTB41
Characteristics (curves)
Figure 7. Relative variation of gate trigger current, holding
and latching current versus junction temperature
Figure 9.
Relative variation of critical rate of decrease of main current versus junction temperature
Figure 8. Relative variation of critical rate of decrease of
main current versus (dV/dt)c (typical values)
(typical values)
DS2111 - Rev 11
page 5/12
Page 6
2Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages,
depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product
status are available at: www.st.com. ECOPACK is an ST trademark.
2.1TOP3 insulated and non-insulated package information
Figure 10. TOP3 insulated and non-insulated package outline
BTA40, BTA41, BTB41
Package information
DS2111 - Rev 11
page 6/12
Page 7
BTA40, BTA41, BTB41
TOP3 insulated and non-insulated package information
Table 5. TOP3 insulated and non-insulated mechanical data
Dimensions
Ref.
mm
Min.Typ.Max.Min.Typ.Max.
A
4.404.600.17320.1812
B1.451.550.05700.0611
C14.3515.600.56490.6142
D0.500.700.01960.0276
E2.702.900.10620.1142
F15.8016.500.62200.6497
G20.4021.100.80310.8308
H15.1015.500.59440.6103
J5.405.650.21250.2225
K3.403.650.13380.1438
L4.084.170.16060.1642
M1.201.400.04720.0552
R4.600.1811
1. Inches given for reference only
Inches
(1)
DS2111 - Rev 11
page 7/12
Page 8
2.2RD91 package information
A
E 3
N2
N1
B
F
I
A1
B 1
L1
A2
L2
B 2
C
C2C1
E
E2
•Epoxy meets UL94, V0
•Cooling method: Conduction
•Recommended torque: 0.9 to 1.2 N·m
BTA40, BTA41, BTB41
RD91 package information
Figure 11. RD91 package outline
DS2111 - Rev 11
page 8/12
Page 9
BTA40, BTA41, BTB41
RD91 package information
Table 6. RD91 mechanical data
Dimensions
Ref.
mm
Min.Typ.Max.Min.Typ.Max.
A
40.001.575
A130.1030.301.1851.193
A222.000.867
B27.001.063
B113.5016.500.5310.650
B224.000.945
C14.000.552
C13.500.138
C21.902.100.0740.083
E6.106.500.2400.256
E24.805.200.1880.205
E30.700.900.0270.036
F4.004.300.1570.170
I11.2011.600.4400.536
L13.103.500.1220.138
L21.701.900.0660.075
N133°43°33°43°
N228°38°28°38°
1. Inches given for reference only
Inches
(1)
DS2111 - Rev 11
page 9/12
Page 10
3Ordering information
BT A 40 - 600 B RG
Triac series
Insulation
A = Insulated
B = Non-insulated
Current
40 = 40 A in RD91
41 = 40 A in TOP3 or TOP3 insulated
Package
Voltage
600 = 600 V
Blank = Bulk
RG = Tube
800 = 800 V
Sensitive and type
B = 50 mA standard
Figure 12. Ordering information scheme (BTA40, BTA41 and BTB-41 series)
BTA40, BTA41, BTB41
Ordering information
Order code
BTA40-600BBTA40600BRD9120 g25Bulk
BTA40-800BBTA40800BRD9120 g25Bulk
BTA41-600BRGBTA41600BTOP3 Ins.4.5 g30Tube
BTA41-800BRGBTA41800BTOP3 Ins.4.5 g30Tube
BTB41-600BRGBTB41600BTOP34.5 g30Tube
BTB41-800BRGBTB41800BTOP34.5 g30Tube
MarkingPackageWeightBase qty.Delivery mode
Table 7. Ordering information
DS2111 - Rev 11
page 10/12
Page 11
Revision history
BTA40, BTA41, BTB41
Table 8. Document revision history
DateRevisionChanges
Sep-20035Last update.
25-Mar-20056TOP3 delivery mode changed from bulk to tube.
14-Oct-20057
10-Aug-20098
02-Dec-20209
28-Jan-202110Updated Table 1 and Table 4.
24-Mar-202111Updated coverimage.
Tc values for IT changed in Table 3. ECOPACK statement added.
Updated Table 2 to correctly place packages. Updated Figure 2. Table 5
changed to correctly place TOP3.
Updated ECOPACK statement.
Updated Figure 6 and Figure 12. Added Application section. Minor text
change.
DS2111 - Rev 11
page 11/12
Page 12
BTA40, BTA41, BTB41
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