®
BTA/BTB24, BTA25, BTA26
and T25 Series
25A TRIAC
S
SNUBBERLESS™ & STANDARD
MAIN FEATURES:
Symbol
I
T(RMS)
V
DRM
/V
RRM
I
GT (Q
1
)
Value
25
600 and 800
35 to 50
Unit
A
V
mA
A1
A2
G
G
A2
A2
A1
A1
A2
G
DESCRIPTION
Available either in through-hole of surface and T25
mount packages, the BTA/BTB24-25-26 triac
series is suitable for general purpose AC power
switching. They can be used as an ON/OFF
function in applications such as static relays,
heating regulation, water heaters, induction motor
starting circuits...or for phase control operation in
high power motor speed controllers, soft start
circuits...The snubberless versions (BTA/BTB...W
and T25 series) are specially recommended for
use on inductive loads, thanks to their high
commutation performances.
By using an internal ceramic pad, the BTA series
provides voltage insulated tab (rated at 2500V
RMS) complying with UL standards (File ref.:
E81734).
ABSOLUTE MAXIMUM RATINGS
Symbol
I
T(RMS)
Parameter
RMS on-state current (full sine wave)
TO-220AB
Insulated
(BTA24)
A1 A2
G
A2
TO-220AB
(BTB24)
A1
G
A2
D
2
PAK
(T25G)
A1 A2
G
RD91
(BTA25)
TOP3
Insulated
(BTA26)
Value
Tc = 100°C
Tc = 90°C
Tc = 75°C
t = 16.7 ms
t = 20 ms
25
Unit
A
I
TSM
I
²
t
dI/dt
Non repetitive surge peak on-state
current (full cycle, Tj initial = 25°C)
I
²
t Value for fusing
Critical rate of rise of on-state current
I
G
= 2 x I
GT
, tr
≤
100 ns
D²PAK
TO-220AB
RD91
TOP3 Ins.
TO-220AB Ins.
F = 60 Hz
F = 50 Hz
260
250
340
A
A
²
s
A/µs
V
A
W
°C
1/9
tp = 10 ms
F = 120 Hz
tp = 10 ms
tp = 20 µs
Tj = 125°C
Tj = 25°C
Tj = 125°C
Tj = 125°C
50
V
DRM
/V
RRM
+ 100
V
DSM
/V
RSM
Non repetitive surge peak off-state
voltage
I
GM
P
G(AV)
T
stg
T
j
Peak gate current
Average gate power dissipation
Storage junction temperature range
Operating junction temperature range
4
1
- 40 to + 150
- 40 to + 125
September 2002 - Ed: 6A
BTA/BTB24, BTA25, BTA26 and T25 Series
ELECTRICAL CHARACTERISTICS
(Tj = 25°C, unless otherwise specified)
s
SNUBBERLESS™ (3 Quadrants) T25-G, BTA/BTB24...W, BTA25...W, BTA26...W
Symbol
Test Conditions
Quadrant
T25
T2535
I
GT
(1)
V
GT
V
GD
I
H
(2)
I
L
dV/dt (2)
V
D
= 12 V
V
D
= V
DRM
I
T
= 500 mA
I
G
= 1.2 I
GT
V
D
= 67 % V
DRM
gate open Tj = 125°C
Tj = 125°C
I - III
II
MIN.
MIN.
(dI/dt)c (2) Without snubber
R
L
= 33
Ω
R
L
= 3.3 kΩ
Tj = 125°C
I - II - III
I - II - III
I - II - III
MAX.
MAX.
MIN.
MAX.
MAX.
50
70
80
500
13
35
BTA/BTB
CW
35
1.3
0.2
50
70
80
500
13
75
80
100
1000
22
V/µs
A/ms
BW
50
mA
V
V
mA
mA
Unit
s
STANDARD (4 Quadrants): BTB24...B, BTA25...B, BTA26...B
Symbol
I
GT
(1)
V
D
= 12 V
V
GT
V
GD
I
H
(2)
I
L
dV/dt (2)
V
D
= V
DRM
I
T
= 500 mA
I
G
= 1.2 I
GT
V
D
= 67 % V
DRM
gate open Tj = 125°C
Tj = 125°C
I - III - IV
II
MIN.
MIN.
R
L
= 3.3 kΩ
Tj = 125°C
Test Conditions
R
L
= 33
Ω
Quadrant
I - II - III
IV
ALL
ALL
MAX.
MAX.
MIN.
MAX.
MAX.
Value
50
100
1.3
0.2
80
70
160
500
10
V/µs
V/µs
Unit
mA
V
V
mA
mA
(dV/dt)c (2) (dI/dt)c = 13.3 A/ms
STATIC CHARACTERISTICS
Symbol
V
TM
(2)
V
to
(2)
R
d
(2)
I
DRM
I
RRM
Note 1:
minimum IGT is guaranted at 5% of IGT max.
Note 2:
for both polarities of A2 referenced to A1
Test Conditions
I
TM
= 35 A
tp = 380 µs
Tj = 25°C
Tj = 125°C
Tj = 125°C
Tj = 25°C
Tj = 125°C
MAX.
MAX.
MAX.
MAX.
Value
1.55
0.85
16
5
3
Unit
V
V
mΩ
µA
mA
Threshold voltage
Dynamic resistance
V
DRM
= V
RRM
2/9
BTA/BTB24, BTA25, BTA26 and T25 Series
THERMAL RESISTANCES
Symbol
R
th(j-c)
Junction to case (AC)
Parameter
D
²
PAK
TO-220AB
RD91 (Insulated)
TOP3 Insulated
TO-220AB Insulated
R
th(j-a)
Junction to ambient
S = 1 cm
²
D
²
PAK
TOP3 Insulated
TO-220AB
TO-220AB Insulated
S: Copper surface under tab
Value
0.8
1.1
1.7
45
50
60
Unit
°C/W
°C/W
PRODUCT SELECTOR
Voltage (xxx)
Part Number
600 V
BTB24-xxxB
BTA/BTB24-xxxBW
BTA/BTB24-xxxCW
BTA25-xxxB
BTA25-xxxBW
BTA25-xxxCW
BTA26-xxxB
BTA26-xxxBW
BTA26-xxxCW
T2535-xxxG
BTB: Non insulated TO-220AB package
Sensitivity
800 V
X
X
X
X
X
X
X
X
X
X
50 mA
50 mA
35 mA
50 mA
50 mA
35 mA
50 mA
50 mA
35 mA
35 mA
X
X
X
X
X
X
X
X
X
X
Type
Standard
Snubberless
Snubberless
Standard
Snubberless
Snubberless
Standard
Snubberless
Snubberless
Snubberless
Package
TO-220AB
TO-220AB
TO-220AB
RD-91
RD-91
RD-91
TOP3 Ins.
TOP3 Ins.
TOP3 Ins.
D
²
PAK
ORDERING INFORMATION
BT A 24 -
TRIAC
SERIES
INSULATION:
A: insulated
B: non insulated
CURRENT:
24: 25A in TO-220AB
25: 25A in Rd91
26: 25A in TOP3
600
BW
(RG)
PACKING MODE
Blank: Bulk
RG: Tube
VOLTAGE:
600: 600V
800: 800V
SENSITIVITY & TYPE
B: 50mA STANDARD
BW: 50mA SNUBBERLESS
CW: 35mA SNUBBERLESS
3/9
BTA/BTB24, BTA25, BTA26 and T25 Series
T 25 35
TRIAC
SERIES
CURRENT: 25A
-
600 G
PACKAGE:
G: D
2
PAK
(-TR)
VOLTAGE:
600: 600V
800: 800V
SENSITIVITY:
35: 35mA
PACKING MODE:
Blank: Tube
-TR: Tape & Reel
OTHER INFORMATION
Part Number
BTA/BTB24-xxxyz
BTA/BTB24-xxxyzRG
BTA25-xxxyz
BTA26-xxxyz
T2535-xxxG
T2535-xxxG-TR
Marking
BTA/BTB24xxxyz
BTA/BTB24-xxxyz
BTA25xxxyz
BTA26xxxyz
T2535xxxG
T2535xxxG
Weight
2.3 g
2.3 g
20 g
4.5 g
1.5 g
1.5 g
Base
quantity
250
50
25
120
50
1000
Packing
mode
Bulk
Tube
Bulk
Bulk
Tube
Tape & reel
Note:
xxx= voltage, y = sensitivity, z = type
4/9
BTA/BTB24, BTA25, BTA26 and T25 Series
Fig. 1:
Maximum power dissipation versus RMS
on-state current (full cycle).
P (W)
30
25
20
15
10
5
0
0
5
IT(RMS) (A)
10
15
20
25
Fig. 2-1:
RMS on-state current versus case
temperature (full cycle).
IT(RMS) (A)
30
BTB/T25
25
BTA24
20
15
10
5
0
0
25
50
Tc(°C)
75
100
125
BTA25/26
Fig. 2-2:
D²PAK RMS on-state current versus
ambient temperature (printed circuit board FR4,
copper thickness: 35
µm),
full cycle.
IT(RMS) (A)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
25
Tamb(°C)
50
75
100
125
D
2
PAK
(S=1cm
2
)
Fig. 3:
Relative variation of thermal impedance
versus pulse duration.
K=[Zth/Rth]
1E+0
Zth(j-c)
1E-1
Zth(j-a)
BTA/BTB24/T25
1E-2
Zth(j-a)
BTA26
tp (s)
1E-3
1E-3
1E-2
1E-1
1E+0
1E+1
1E+2 5E+2
Fig. 4:
values).
ITM (A)
300
100
On-state characteristics (maximum
Fig. 5:
Surge peak on-state current versus
number of cycles.
ITSM (A)
300
250
200
150
Non repetitive
Tj initial=25°C
t=20ms
Tj max
One cycle
10
Tj=25°C
100
Repetitive
Tc=75°C
VTM (V)
1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Tj max.
Vto = 0.85 V
Rd = 16 mΩ
50
Number of cycles
4.0
4.5
0
1
10
100
1000
5/9
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