Philips Semiconductors
Product specification
Thyristors
BT151S series
GENERAL DESCRIPTION
Passivated thyristors in a plastic
envelope, suitable for surface
mounting, intended for use in
applications
requiring
high
bidirectional
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
V
DRM
,
V
RRM
I
T(AV)
I
T(RMS)
I
TSM
BT151S -
Repetitive peak off-state
voltages
Average on-state current
RMS on-state current
Non-repetitive peak
on-state
current
MAX.
500R
500
7.5
12
100
MAX.
650R
650
7.5
12
100
MAX.
800R
800
7.5
12
100
UNIT
V
A
A
A
PINNING - SOT428
PIN
NUMBER
1
2
3
tab
cathode
anode
gate
anode
PIN CONFIGURATION
tab
SYMBOL
a
k
2
1
3
g
LIMITING VALUES
Limiting values in accordance with the Absolute Maximum System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
-
half sine wave; T
mb
≤
103 ˚C
all conduction angles
half sine wave; T
j
= 25 ˚C prior to
surge
t = 10 ms
t = 8.3 ms
t = 10 ms
I
TM
= 20 A; I
G
= 50 mA;
dI
G
/dt = 50 mA/µs
-
-
-
-
-
-
-
-
-
-
-40
-
MAX.
-500R 650R -800R
500
1
650
1
800
7.5
12
100
110
50
50
2
5
5
0.5
150
125
UNIT
V
A
A
A
A
A
2
s
A/µs
A
V
W
W
˚C
˚C
V
DRM
, V
RRM
Repetitive peak off-state
voltages
I
T(AV)
I
T(RMS)
I
TSM
Average on-state current
RMS on-state current
Non-repetitive peak
on-state current
I
2
t
dI
T
/dt
I
GM
V
RGM
P
GM
P
G(AV)
T
stg
T
j
I
2
t for fusing
Repetitive rate of rise of
on-state current after
triggering
Peak gate current
Peak reverse gate voltage
Peak gate power
Average gate power
over any 20 ms period
Storage temperature
Operating junction
temperature
1
Although not recommended, off-state voltages up to 800V may be applied without damage, but the thyristor may
switch to the on-state. The rate of rise of current should not exceed 15 A/µs.
January 2002
1
Rev 1.400
Philips Semiconductors
Product specification
Thyristors
BT151S series
THERMAL RESISTANCES
SYMBOL
R
th j-mb
R
th j-a
PARAMETER
CONDITIONS
MIN.
-
-
TYP.
-
75
MAX.
1.8
-
UNIT
K/W
K/W
Thermal resistance
junction to mounting base
Thermal resistance
pcb (FR4) mounted; footprint as in Fig.14
junction to ambient
STATIC CHARACTERISTICS
T
j
= 25 ˚C unless otherwise stated
SYMBOL
I
GT
I
L
I
H
V
T
V
GT
I
D
, I
R
PARAMETER
Gate trigger current
Latching current
Holding current
On-state voltage
Gate trigger voltage
Off-state leakage current
CONDITIONS
V
D
= 12 V; I
T
= 0.1 A
V
D
= 12 V; I
GT
= 0.1 A
V
D
= 12 V; I
GT
= 0.1 A
I
T
= 23 A
V
D
= 12 V; I
T
= 0.1 A
V
D
= V
DRM(max)
; I
T
= 0.1 A; T
j
= 125 ˚C
V
D
= V
DRM(max)
; V
R
= V
RRM(max)
; T
j
= 125 ˚C
MIN.
-
-
-
-
-
0.25
-
TYP.
2
10
7
1.4
0.6
0.4
0.1
MAX.
15
40
20
1.75
1.5
-
0.5
UNIT
mA
mA
mA
V
V
V
mA
DYNAMIC CHARACTERISTICS
T
j
= 25 ˚C unless otherwise stated
SYMBOL
dV
D
/dt
PARAMETER
Critical rate of rise of
off-state voltage
Gate controlled turn-on
time
Circuit commutated
turn-off time
CONDITIONS
V
DM
= 67% V
DRM(max)
; T
j
= 125 ˚C;
exponential waveform;
Gate open circuit
R
GK
= 100
Ω
I
TM
= 40 A; V
D
= V
DRM(max)
; I
G
= 0.1 A;
dI
G
/dt = 5 A/µs
V
D
= 67% V
DRM(max)
; T
j
= 125 ˚C;
I
TM
= 20 A; V
R
= 25 V; dI
TM
/dt = 30 A/µs;
dV
D
/dt = 50 V/µs; R
GK
= 100
Ω
MIN.
TYP.
MAX.
UNIT
t
gt
t
q
50
200
-
-
130
1000
2
70
-
-
-
-
V/µs
V/µs
µs
µs
January 2002
2
Rev 1.400
Philips Semiconductors
Product specification
Thyristors
BT151S series
15
Ptot / W
conduction
angle
degrees
30
60
90
120
180
form
factor
Tmb(max) / C
a
4
2.8
2.2
1.9
1.57
98
120
100
ITSM / A
IT
ITSM
a = 1.57
2.2
2.8
4
1.9
107
10
80
60
time
T
Tj initial = 25 C max
5
116
40
20
0
0
1
2
3
4
5
IF(AV) / A
6
7
125
8
0
1
10
100
Number of half cycles at 50Hz
1000
Fig.1. Maximum on-state dissipation, P
tot
, versus
average on-state current, I
T(AV)
, where
a = form factor = I
T(RMS)
/ I
T(AV)
.
ITSM / A
Fig.4. Maximum permissible non-repetitive peak
on-state current I
TSM
, versus number of cycles, for
sinusoidal currents, f = 50 Hz.
1000
25
IT(RMS) / A
20
dI
T
/dt limit
100
15
10
IT
T
I TSM
time
5
Tj initial = 25 C max
10
10us
100us
T/s
1ms
10ms
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
≤
10ms.
Fig.5. Maximum permissible repetitive rms on-state
current I
T(RMS)
, versus surge duration, for sinusoidal
currents, f = 50 Hz; T
mb
≤
103˚C.
VGT(Tj)
VGT(25 C)
15
IT(RMS) / A
1.6
103 C
1.4
10
1.2
1
5
0.8
0.6
0
-50
0
50
Tmb / C
100
150
0.4
-50
0
50
Tj / C
100
150
Fig.3. Maximum permissible rms current I
T(RMS)
,
versus mounting base temperature T
mb
.
Fig.6. Normalised gate trigger voltage
V
GT
(T
j
)/ V
GT
(25˚C), versus junction temperature T
j
.
January 2002
3
Rev 1.400
Philips Semiconductors
Product specification
Thyristors
BT151S series
3
2.5
2
1.5
1
0.5
IGT(Tj)
IGT(25 C)
30
25
IT / A
Tj = 125 C
Tj = 25 C
Vo = 1.06 V
Rs = 0.0304 ohms
20
15
10
5
0
typ
max
0
-50
0
50
Tj / C
100
150
0
0.5
1
VT / V
1.5
2
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
BT145
10
Zth j-mb (K/W)
1
0.1
P
D
tp
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(25 C)
Fig.11. Transient thermal impedance Z
th j-mb
, versus
pulse width t
p
.
dVD/dt (V/us)
10000
3
2.5
1000
2
RGK = 100 Ohms
1.5
1
0.5
0
-50
10
100
gate open circuit
0
50
Tj / C
100
150
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, critical rate of rise of off-state voltage,
dV
D
/dt versus junction temperature T
j
.
January 2002
4
Rev 1.400
Philips Semiconductors
Product specification
Thyristors
BT151S series
MECHANICAL DATA
Dimensions in mm
Net Mass: 1.1 g
6.73 max
1.1
2.38 max
0.93 max
seating plane
5.4
tab
4 min
6.22 max
10.4 max
4.6
2
1
2.285 (x2)
0.5 min
0.5
0.3
0.5
3
0.8 max
(x2)
Fig.13. SOT428 : centre pin connected to tab.
MOUNTING INSTRUCTIONS
Dimensions in mm
7.0
7.0
2.15
2.5
1.5
4.57
Fig.14. SOT428 : minimum pad sizes for surface mounting.
Notes
1. Plastic meets UL94 V0 at 1/8".
January 2002
5
Rev 1.400
MCU
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