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BTA08, BTB08 T810, T835
SnubberlessTM, logic level and standard 8 A Triacs
Features

A2
On-state rms current, IT(RMS) 8 A Repetitive peak off-state voltage, VDRM/VRRM 600 to 800 V Triggering gate current, IGT (Q1) 5 to 50 mA
A1 A2 G A2
G A1
A2
Description
Available either in through-hole or surface-mount packages, the BTA08, BTB08 and T8 triac series is suitable for general purpose AC switching. They can be used as an ON/OFF function in applications such as static relays, heating regulation, induction motor starting circuits... or for phase control operation in light dimmers, motor speed controllers,... The snubberless versions (BTA/BTB...W and T8 series) are specially recommended for use on inductive loads, thanks to their high commutation performances. Logic level versions are designed to interface directly with low power drivers such as microcontrollers. By using an internal ceramic pad, the BTA series provides voltage insulated tab (rated at 2500 VRMS) complying with UL standards (file ref.: E81734).
D2PAK (T8-G)
A2
A1 A2 G
IPAK (T8-H)
A1 A2 G
DPAK (T8-B)
A2
A1 A2 G
A1 A2 G
TO-220AB Insulated (BTA08)
TO-220AB (BTB08)
March 2010
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www.st.com 12
Characteristics
BTA08, BTB08 and T8 Series
1
Table 1.
Symbol
Characteristics
Absolute maximum ratings
Parameter IPAK/D2PAK/DPAK/ Tc = 110 C TO-220AB TO-220AB Ins. ITSM It dI/dt IGM Non repetitive surge peak on-state current (full cycle, Tj initial = 25 C) It value for fusing Critical rate of rise of on-state current IG = 2 x IGT , tr 100 ns Peak gate current Average gate power dissipation Storage junction temperature range Operating junction temperature range F = 50 Hz F = 60 Hz tp = 10 ms F = 120 Hz tp = 20 s Tj = 125 C Tj = 125 C Tj = 125 C Tc = 100 C t = 20 ms t = 16.7 ms 80 A 84 36 50 4 1 - 40 to + 150 - 40 to + 125 A s A/s A W C Value Unit
IT(RMS)
On-state rms current (full sine wave)
8
A
PG(AV) Tstg Tj
Table 2.
Electrical characteristics (Tj = 25 C, unless otherwise specified) Snubberless and logic level (3 quadrants)
T8 BTA08 / BTB08 Unit T810 T835 TW 5 1.3 0.2 15 25 MAX. II MIN. 30 40 5.4 MIN. 2.8 60 400 4.5 15 20 3.5 1.5 30 40 5.4 2.98 60 400 4.5 80 1000 7 A/ms V/s 35 50 10 10 15 25 35 50 50 70 mA SW 10 CW 35 BW 50 mA V V mA MAX. MAX. MIN. MAX. I - III 10 35 Test conditions Quadrant I - II - III I - II - III I - II - III
Symbol IGT (1) VGT VGD IH (2) IL dV/dt (2)
VD = 12 V RL = 30 VD = VDRM RL = 3.3 k Tj = 125 C IT = 100 mA IG = 1.2 IGT VD = 67 %VDRM gate open Tj = 125 C (dV/dt)c = 0.1 V/s
Tj = 125 C Tj = 125 C Tj = 125 C
(dI/dt)c
(2)
(dV/dt)c = 10 V/s Without snubber
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Doc ID 7472 Rev 7
BTA08, BTB08 and T8 Series Table 3.
Symbol
Characteristics
Standard (4 quadrants)
BTA08 / BTB08 Test conditions Quadrant C B 50 100 1.3 0.2 25 40 MAX. II Tj = 125 C Tj = 125 C MIN. MIN. 80 200 5 100 400 10 V/s V/s 50 50 mA mA V V mA I - II - III IV ALL VD = VDRM, RL = 3.3 k, Tj = 125 C IT = 500 mA I - III - IV IG = 1.2 IGT ALL 25 50 Unit
IGT (1) VGT VGD IH (2) IL
VD = 12 V, RL = 33
MAX. MAX. MIN. MAX.
dV/dt (2) VD = 67 %VDRM gate open (dV/dt)c
(2)
(dI/dt)c = 5.3 A/ms
Table 4.
Symbol VTM (1) Vt0 Rd
(2) (2)
Static characteristics
Test conditions ITM = 11 A, tp = 380 s Threshold voltage Dynamic resistance VDRM = VRRM Tj = 25 C Tj = 125 C Tj = 125 C Tj = 25 C Tj = 125 C MAX. MAX. MAX. MAX. 1 mA Value 1.55 0.85 50 5 Unit V V m A
IDRM IRRM
1. minimum IGT is guaranted at 5% of IGT max. 2. for both polarities of A2 referenced to A1.
Table 5.
Symbol Rth(j-c)
Thermal resistance
Parameter IPAK / D2PAK / DPAK / TO-220AB Junction to case (AC) TO-220AB Insulated S = 1 cm S = 0.5 cm D2PAK DPAK TO-220AB / TO-220AB Insulated IPAK 2.5 45 70 C/W 60 100 Value 1.6 C/W Unit
Rth(j-a)
Junction to ambient
S = Copper surface under tab.
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Characteristics
BTA08, BTB08 and T8 Series
Figure 1.
P(W)
10 9 8 7 6 5 4 3 2 1 0 0 1
Maximum power dissipation versus Figure 2. rms on-state current (full cycle)
IT(RMS)(A)
10 9 8 7 6 5 4 3 2
On-state rms current versus case temperature (full cycle)
BTB / T8
BTA
IT(RMS)(A)
2 3 4 5 6 7 8
1 0 0 25 50
TC(C)
75 100 125
Figure 3.
On-state rms current versus ambient temperature (full cycle)
Figure 4.
Relative variation of thermal impedance versus pulse duration
IT(RMS)(A)
3.5
1E+0
K=[Zth/Rth]
printed circuit board FR4, copper thickness: 35 m
D2PAK (S=1CM2)
Zth(j-c) DPAK/IPAK Zth(j-a)
3.0 2.5
1E-1
2.0 1.5 1.0 0.5
DPAK (S=0.5CM2)
TO-220AB/D2PAK Zth(j-a)
1E-2
TC(C)
0.0 0 25 50 75 100 125
tp(s)
1E-3 1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+2
Figure 5.
ITM(A)
100
Tj max. Vto = 0.85V Rd = 50 m
On-state characteristics (maximum values)
Figure 6.
Surge peak on-state current versus number of cycles
ITSM(A)
90
Tj = Tj max.
80 70 60
Non repetitive Tj initial=25C Repetitive TC=110C
t=20ms
One cycle
10
50
Tj = 25C.
40 30 20
VTM(V)
1 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
10 0 1 10
Number of cycles
100 1000
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BTA08, BTB08 and T8 Series
Characteristics
Figure 7.
Non-repetitive surge peak on-state current for a sinusoidal
2 2
Figure 8.
Relative variation of gate trigger current
ITSM(A), I t (A s)
1000
Tj initial=25C
IGT,IH,IL[Tj] / IGT,IH,IL[Tj=25C]
2.5
holding current and latching current versus junction temperature (typical values)
2.0
dI/dt limitation: 50A/s
IGT
ITSM
1.5
IH & IL
100
360
1.0
pulse with width tp < 10 ms and corresponding value of I2t
I2t
0.5
10 0.01 0.10 1.00
tp(ms)
10.00
Tj(C)
0.0 -40 -20 0 20 40 60 80 100 120 140
Figure 9.
Relative variation of critical rate of decrease of main current versus (dV/dt)c (typical values)
Figure 10. Relative variation of critical rate of decrease of main current versus (dV/dt)c (typical values)
(dI/dt)c [(dV/dt)c] / Specified (dI/dt)c
2.0
Standard types
(dI/dt)c [(dV/dt)c] / Specified (dI/dt)c
2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.1 1.0 10.0 100.0
T810/SW T835/CW/BW TW
Snubberless and Logic level types
1.8 1.6
C
1.4 1.2 1.0 0.8
B
(dV/dt)c (V/s)
0.6 0.4 0.1 1.0
(dV/dt)c (V/s)
10.0 100.0
Figure 11. Relative variation of critical rate of decrease of main current versus junction temperature
(dI/dt)c [Tj] / (dI/dt)c [Tj specified]
6 5 4 3 2 1
Figure 12. DPAK and D2PAK thermal resistance junction to ambient versus copper surface under tab
Rth(j-a)(C/W)
100 90 80 70 60 50 40 30 20
D2PAK DPAK
printed circuit board FR4, copper thickness: 35 m
Tj(C)
0 0 25 50 75 100 125
10 0 0 4 8 12 16
S(cm)
20 24 28 32 36 40
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Package information
BTA08, BTB08 and T8 Series
2
Package information

Epoxy meets UL94, V0 Lead-free packages
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Table 6. D2PAK dimensions
Dimensions Ref. Millimeters Min. A
A E L2 C2
Inches Min. 0.169 0.098 0.001 0.027 0.048 0.055 Typ. Max. 0.181 0.106 0.009 0.037
Typ.
Max. 4.60 2.69 0.23 0.93
4.30 2.49 0.03 0.70 1.25 0.45 1.21 8.95 10.00 4.88 15.00 1.27 1.40 0.40 0 1.40
A1 A2 B
D
L L3 A1
B2 C C2
0.60 1.36 9.35
0.017 0.047 0.352
0.024 0.054 0.368 0.405 0.208 0.624 0.055 0.069 0.016
B2 B G
C
R
D E
10.28 0.393 5.28 0.192
A2 2mm min. FLAT ZONE
G L
V2
15.85 0.590 1.40 1.75 0.050 0.055
L2 L3 R V2
8
0
8
Figure 13. Footprint (dimensions in mm)
16.90
10.30 1.30
5.08
8.90
3.70
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BTA08, BTB08 and T8 Series Table 7. DPAK dimensions
Package information
Dimensions Ref. Millimeters Min. A
E B2 C2 L2 A
Inches Min. 0.086 0.035 0.001 0.025 0.204 0.017 0.018 0.236 0.251 0.173 0.368 Max. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.259 0.181 0.397
Max. 2.40 1.10 0.23 0.90 5.40 0.60 0.60 6.20 6.60 4.60 10.10
2.20 0.90 0.03 0.64 5.20 0.45 0.48 6.00 6.40 4.40 9.35
A1 A2 B B2
D
H L4 B G A1
R
C C2
R C
D E
A2 0.60 MIN.
G H
V2
L2 L4 V2
0.80 typ. 0.60 0 1.00 8
0.031 typ. 0.023 0 0.039 8
Figure 14. Footprint (dimensions in mm)
6.7 3 3 1.6
2.3 6.7 2.3
1.6
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Package information Table 8. IPAK dimensions
BTA08, BTB08 and T8 Series
Dimensions Ref. Millimeters Min. A A1 A3
A E B2 L2 C2
Inches Min. 0.086 0.035 0.027 0.025 0.204 Typ. Max. 0.094 0.043 0.051 0.035 0.212 0.037 0.035
Typ.
Max. 2.40 1.10 1.30 0.90 5.40 0.95
2.20 0.90 0.70 0.64 5.20
B B2 B3 B5
D
0.30 0.45 0.48 6 6.40 2.28 4.40 16.10 9 0.8 0.80 10 9.40 1.20 1 0.354 0.031 4.60 0.173 0.60 0.60 6.20 6.60 0.017 0.019 0.236 0.252
C C2
0.023 0.023 0.244 0.260 0.090 0.181 0.634 0.370 0.047 0.031 0.039 10
H L
L1
B3 B V1 A1
D E e
C A3
e G
B5
G H L L1 L2 V1
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BTA08, BTB08 and T8 Series TO-220AB (NIns. and Ins. 20-up) dimensions
Package information
Dimensions Ref. Millimeters Min. A a1
B OI L F A I4 l3 a1 l2 c2 b2 C
Inches Min. Typ. Max. 0.625 0.147
Typ.
Max.
15.20 3.75 13.00 10.00 0.61 1.23 4.40 0.49 2.40 2.40 6.20 3.75
15.90 0.598
a2 B b1 b2 C c1 c2
14.00 0.511 10.40 0.393 0.88 1.32 4.60 0.70 2.72 2.70 6.60 3.85 0.024 0.048 0.173 0.019 0.094 0.094 0.244 0.147
0.551 0.409 0.034 0.051 0.181 0.027 0.107 0.106 0.259 0.151
a2
e
M
F
c1
b1 e
OI I4 L l2 l3 M
15.80 16.40 16.80 0.622 0.646 0.661 2.65 1.14 1.14 2.60 2.95 1.70 1.70 0.104 0.044 0.044 0.102 0.116 0.066 0.066
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Ordering information
BTA08, BTB08 and T8 Series
3
Ordering information
Figure 15. Ordering information scheme (BTA08 and BTB08 series)
BT A 08 - 600 BW (RG)
Triac series Insulation A = insulated B = non insulated Current 08 = 8A Voltage 600 = 600V 800 = 800V Sensitivity and type B = 50mA Standard C = 25mA Standard SW = 10mA Logic Level Packing mode RG = Tube BW = 50mA Snubberless CW = 35mA Snubberless TW = 5mA Logic Level
Figure 16. Ordering information scheme (T8 series)
T 8 10 - 600 B (-TR)
Triac series Current 8 = 8A Sensitivity 10 = 10 mA 35 = 35 mA Voltage 600 = 600 V 800 = 800 V Package B = DPAK H = IPAK G = D2PAK R = I2PAK Packing mode Blanck = Tube -TR = Tape and reel
Table 9.
Product Selector
Voltage (xxx) Sensitivity 600 V 800 V X X X X X X X X X X X 50 mA 50 mA 25 mA 35 mA 10 mA 5 mA 10 mA 10 mA 35 mA 35 mA 35 mA Standard Snubberless Standard Snubberless Logic level Logic Level Logic Level Logic Level Snubberless Snubberless Snubberless TO-220AB TO-220AB TO-220AB TO-220AB TO-220AB TO-220AB D2PAK IPAK DPAK D2PAK IPAK X X X X X X X X X X X Type Package
Part Number BTA/BTB08-xxxB BTA/BTB08-xxxBW BTA/BTB08-xxxC BTA/BTB08-xxxCW BTA/BTB08-xxxSW BTA/BTB08-xxxTW T810-xxxG T810-xxxH T835-xxxB T835-xxxG T835-xxxH
BTB: non insulated TO-220AB package
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BTA08, BTB08 and T8 Series
Ordering information
4
Ordering information
Table 10. Ordering information
Marking BTA/BTB08-xxxyz T8yyxx T8yyxx T8yyxx DPAK T8yy-xxxB-TR T8yy-xxxH T8yyxx T8yyxx IPAK 0.4 g 0.3 g 2500 75 Tape and reel Tube Package TO-220AB D2PAK Weight 2.3 g 1.5 g 1000 75 Tape and reel Tube Base qty Delivery mode 50 50 Tube Tube
Order code BTA/BTB08-xxxyzRG T8yy-xxxG T8yy-xxxG-TR T8yy-xxxB
xxx = voltage, yy = sensitivity, z = type
5
Revision history
Table 11.
Date Apr-2002 13-Feb-2006 10-Mar-2010
Document revision history
Revision 5A 6 7 Last update. TO-220AB delivery mode changed from bulk to tube. ECOPACK statement added. Updated ECOPACK statement and Figure 16. Changes
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BTA08, BTB08 and T8 Series
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