BT145-800RT
SCR
24 April 2017
Product data sheet
1. General description
Planar passivated Silicon Controlled Rectifier (SCR) in a SOT78 (TO-220AB) plastic package
intended for use in applications requiring high bidirectional blocking voltage capability, high current
inrush capability and high thermal cycling performance.
2. Features and benefits
•
•
•
•
•
•
•
•
AC power control
High bidirectional blocking voltage capability
High thermal cycling performance
Planar passivated for voltage ruggedness and reliability
High junction operating temperature capability (Tj(max) = 150 °C)
Package meets UL94V0 flammability requirement
Package is RoHS compliant
IEC 61000-4-4 fast transient
3. Applications
•
•
•
•
•
•
Capacitive Discharge Ignition (CDI)
Crowbar protection
Inrush protection
Motor control
Voltage regulation
High junction operating temperature capability (Tj(max) = 150 °C)
4. Quick reference data
Table 1. Quick reference data
Symbol
Parameter
Conditions
Values
Unit
800
V
Absolute maximum rating
VDRM
repetitive peak off-state
voltage
IT(RMS)
RMS on-state current
half sine wave; Tmb≤ 128°C;
Fig. 1; Fig. 2; Fig. 3
25
A
ITSM
non-repetitive peak onstate current
half sine wave; Tj(init) = 25 °C;
tp = 10 ms; Fig. 4; Fig. 5
300
A
half sine wave; Tj(init) = 25 °C;
tp = 8.3 ms
330
A
150
°C
Tj
junction temperature
BT145-800RT
WeEn Semiconductors
SCR
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Static characteristics
IGT
gate trigger current
VD = 12 V; IT = 0.1 A; Tj = 25 °C; Fig. 7
1.5
-
10
mA
IH
holding current
VD = 12 V; Tj = 25 °C; Fig. 9
-
-
60
mA
VT
on-state voltage
IT = 30 A; Tj = 25 °C; Fig. 10
-
1.10
1.50
V
VDM = 536 V; Tj = 150 °C; (VDM = 67%
of VDRM); exponential waveform;
gate open circuit
80
-
-
V/μs
Dynamic characteristics
dVD/dt
rate of rise of off-state
voltage
5. Pinning information
Table 2. Pinning information
Pin
Symbol
Description
Simplified outline
Graphic symbol
mb
1
K
cathode
2
A
anode
3
mb
G
A
gate
mounting base; connect to
anode
A
K
G
sym037
1 2 3
6. Ordering information
Table 3. Ordering information
Type number
Package
Name
Description
BT145-800RT
TO-220AB plastic single-ended package; heatsink mounted; 1 mounting
hole; 3-lead TO-220AB
BT145-800RT
Product data sheet
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Version
SOT78
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7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
VDRM
Conditions
Values
Unit
repetitive peak off-state
voltage
800
V
VRRM
repetitive peak reverse
voltage
800
V
IT(AV)
average on-state current
half sine wave; Tmb≤ 128°C;
16
A
IT(RMS)
RMS on-state current
half sine wave; Tmb≤ 128°C;
Fig. 1; Fig. 2; Fig. 3
25
A
ITSM
non-repetitive peak onstate current
half sine wave; Tj(init) = 25 °C; tp = 10 ms;
Fig. 4; Fig. 5
300
A
half sine wave; Tj(init) = 25 °C;
tp = 8.3 ms
330
A
I2t
I2t for fusing
tp = 10ms; sine wave
450
A2s
dIT/dt
rate of rise of on-state
current
IG = 20mA
200
A/μs
IGM
peak gate current
5
A
VGM
peak gate voltage
5
V
PGM
peak gate power
20
W
PG(AV)
average gate power
0.5
W
Tstg
storage temperature
-40 to 150
°C
Tj
junction temperature
150
°C
over any 20 ms period
aaf325-001
30
IT(RMS)
(A)
25
128°C
20
28
15
26
10
24
5
22
0
-50
0
50
100
Tmb (°C)
150
Fig. 1. RMS on-state current as a function of mounting
base temperature; maximum values
BT145-800RT
Product data sheet
20
10-2
10-1
1
10
surge duration (s)
f = 50Hz; Tmb = 128 °C
Fig. 2. RMS on-state current as a function of surge
duration; maximum values
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aaf325-002
32
IT(RMS)
(A)
30
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SCR
Ptot
(W)
aaf325-003
24
conduction form
angle
factor
(degrees)
α
20
30
60
90
120
180
16
4
2.8
2.2
1.9
1.57
a = 1.57
1.9
2.2
α
134
2.8
4
12
126
Tmb(max)
(°C)
130
138
8
142
4
146
0
0
2
4
6
8
10
12
14
α = conduction angle
a = form factor = IT(RMS) / IT(AV)
Fig. 3. Total power dissipation as a function of RMS on-state current; maximum values
150
16
IT(AV) (A)
aaf325-004
400
ITSM
(A)
ITSM
IT
t
300
tp
Tj(init) = 25 °C max
200
100
0
1
102
10
103
number of cycles (n)
f = 50 Hz
Fig. 4. Non-repetitive peak on-state current as a function of the number of sinusoidal current cycles; maximum
values
aaf325-005
104
ITSM
(A)
ITSM
IT
t
tp
Tj(init) = 25 °C max
(1)
103
102
10-5
10-4
10-3
tp (s)
10-2
tp ≤ 20 ms ;
(1) dIT/dt limit
Fig. 5. Total power dissipation as a function of RMS on-state current; maximum values
BT145-800RT
Product data sheet
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8. Thermal characteristics
Table 5. Thermal characteristics
Symbol
Parameter
Conditions
Rth(j-mb)
thermal resistance
from junction to
mounting base
Rth(j-a)
thermal resistance
from junction to
ambient free air
Fig. 6
in free air
Min
Typ
Max
Unit
-
-
1
K/W
-
60
-
K/W
aaf325-006
10
Zth(j-mb)
(K/W)
1
10-1
P
δ=
10-2
tp
10-3
10-5
10-4
10-3
10-2
10-1
1
tp
T
t
T
tp (s)
10
Fig. 6. Transient thermal impedance from junction to mounting base as a function of pulse duration
BT145-800RT
Product data sheet
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9. Characteristics
Table 6. Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Static characteristics
IGT
gate trigger current
VD = 12 V; IT = 0.1 A; Tj = 25 °C; Fig. 7
1.5
-
10
mA
IL
latching current
VD = 12 V; IT = 0.1 A; Tj = 25 °C; Fig. 8
-
-
80
mA
IH
holding current
VD = 12 V; Tj = 25 °C; Fig. 9
-
-
60
mA
VT
on-state voltage
IT = 30 A; Tj = 25 °C; Fig. 10
-
1.10
1.50
V
VGT
gate trigger voltage
VD = 12 V; IT = 0.1 A; Tj = 25 °C;
Fig. 11
-
0.6
1
V
VD = 400 V; IT = 0.1 A; Tj = 125 °C;
Fig. 11
0.25
0.4
-
V
ID
off-state current
VD = 800 V; Tj = 150 °C
-
-
2
mA
IR
reverse current
VD = 800 V; Tj = 150 °C
-
-
2
mA
80
-
-
V/μs
Dynamic characteristics
dVD/dt
rate of rise of off-state
voltage
VDM = 536 V; Tj = 150 °C; (VDM = 67%
of VDRM); exponential waveform;
gate open circuit
tgt
gate-controlled turn-on
time
ITM = 40 A; VD = 800 V; IG = 0.1 mA;
dIG/dt = 5 A/μs; Tj = 25 °C
2
-
μs
tq
commutated turn-off
time
VDM = 536 V; Tj = 125 °C; ITM = 50 A;
VR = 25 V; dIT/dt = 30 A/μs; dVD/dt =
50 V/μs
70
-
μs
aaf325-008
3
aaf325-007
3
IL
IGT
IL(25°C)
IGT(25°C)
2
2
1
1
0
-50
0
50
100
Tj (°C)
Fig. 7. Normalized gate trigger current as a function of
junction temperature
BT145-800RT
Product data sheet
0
-50
150
0
50
100
Tj (°C)
150
Fig. 8. Normalized latching current as a function of
junction temperature
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aaf325-009
3
IT
(A)
IH
IH(25°C)
aaf325-010
40
30
(2)
(1)
2
(3)
20
1
10
0
-50
0
50
100
Tj (°C)
0
150
0
1
VT (V)
2
Vo = 0.987 V; Rs = 0.0103 Ω
(1) Tj = 150 °C; typical values
(2) Tj = 150 °C; maximum values
(3) Tj = 25 °C; maximum values
Fig. 10. On-state current as a function of on-state voltage
Fig. 9. Normalized holding current as a function of
junction temperature
aaf325-011
1.6
VGT
VGT(25°C)
1.2
0.8
0.4
-50
0
50
100
Tj (°C)
150
Fig. 11. Normalized gate trigger voltage as a function of junction temperature
BT145-800RT
Product data sheet
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10. Package outline
Plastic single-ended package; heatsink mounted; 1 mounting hole; 3-lead TO-220AB
SOT78
E
A
A1
p
q
mounting
base
D1
D
L1(1)
L2(1)
Q
L
b1(2)
(3×)
b2(2)
(2×)
1
2
3
c
b(3×)
e
e
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
A1
b
b1(2)
b2(2)
c
D
D1
E
e
L
L1(1)
L2(1)
max.
p
q
Q
mm
4.7
4.1
1.40
1.25
0.9
0.6
1.6
1.0
1.3
1.0
0.7
0.4
16.0
15.2
6.6
5.9
10.3
9.7
2.54
15.0
12.8
3.30
2.79
3.0
3.8
3.5
3.0
2.7
2.6
2.2
Notes
1. Lead shoulder designs may vary.
2. Dimension includes excess dambar.
OUTLINE
VERSION
SOT78
REFERENCES
IEC
JEDEC
JEITA
3-lead TO-220AB
SC-46
EUROPEAN
PROJECTION
ISSUE DATE
08-04-23
08-06-13
Fig. 12. Package outline TO-220AB (SOT78)
BT145-800RT
Product data sheet
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SCR
Right to make changes — WeEn Semiconductors reserves the right to
make changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
11. Legal information
Data sheet status
Document
status [1][2]
Product
status [3]
Objective
[short] data
sheet
Development This document contains data from
the objective specification for product
development.
Preliminary
[short] data
sheet
Qualification
This document contains data from the
preliminary specification.
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Product
[short] data
sheet
Production
This document contains the product
specification.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. WeEn Semiconductors makes
no representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
[1 ]
[2]
[3]
Definition
Suitability for use — WeEn Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical
or safety-critical systems or equipment, nor in applications where failure
or malfunction of an WeEn Semiconductors product can reasonably
be expected to result in personal injury, death or severe property or
environmental damage. WeEn Semiconductors and its suppliers accept no
liability for inclusion and/or use of WeEn Semiconductors products in such
equipment or applications and therefore such inclusion and/or use is at the
customer’s own risk.
Please consult the most recently issued document before initiating or
completing a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may have
changed since this document was published and may differ in case of
multiple devices. The latest product status information is available on
the Internet at URL http://www.ween-semi.com.
Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. WeEn Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences
of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is
intended for quick reference only and should not be relied upon to contain
detailed and full information. For detailed and full information see the
relevant full data sheet, which is available on request via the local WeEn
Semiconductors sales office. In case of any inconsistency or conflict with the
short data sheet, the full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
WeEn Semiconductors and its customer, unless WeEn Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the WeEn Semiconductors product
is deemed to offer functions and qualities beyond those described in the
Product data sheet.
Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, WeEn Semiconductors does not
give any representations or warranties, expressed or implied, as to the
accuracy or completeness of such information and shall have no liability for
the consequences of use of such information. WeEn Semiconductors takes
no responsibility for the content in this document if provided by an information
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In no event shall WeEn Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation lost profits, lost savings, business interruption, costs related to the removal
or replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, WeEn Semiconductors’ aggregate and cumulative liability
towards customer for the products described herein shall be limited in
accordance with the Terms and conditions of commercial sale of WeEn
Semiconductors.
BT145-800RT
Product data sheet
Customers are responsible for the design and operation of their applications
and products using WeEn Semiconductors products, and WeEn
Semiconductors accepts no liability for any assistance with applications or
customer product design. It is customer’s sole responsibility to determine
whether the WeEn Semiconductors product is suitable and fit for the
customer’s applications and products planned, as well as for the planned
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products.
WeEn Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default
in the customer’s applications or products, or the application or use by
customer’s third party customer(s). Customer is responsible for doing all
necessary testing for the customer’s applications and products using WeEn
Semiconductors products in order to avoid a default of the applications
and the products or of the application or use by customer’s third party
customer(s). WeEn does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those
given in the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
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or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
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Non-automotive qualified products — Unless this data sheet expressly
states that this specific WeEn Semiconductors product is automotive
qualified, the product is not suitable for automotive use. It is neither qualified
nor tested in accordance with automotive testing or application requirements.
WeEn Semiconductors accepts no liability for inclusion and/or use of nonautomotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards,
customer (a) shall use the product without WeEn Semiconductors’ warranty
of the product for such automotive applications, use and specifications, and
(b) whenever customer uses the product for automotive applications beyond
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own risk, and (c) customer fully indemnifies WeEn Semiconductors for
any liability, damages or failed product claims resulting from customer
design and use of the product for automotive applications beyond WeEn
Semiconductors’ standard warranty and WeEn Semiconductors’ product
specifications.
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Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
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12. Contents
1. General description........................................................1
2. Features and benefits....................................................1
3. Applications....................................................................1
4. Quick reference data......................................................1
5. Pinning information........................................................2
6. Ordering information......................................................2
7. Limiting values...............................................................3
8. Thermal characteristics.................................................5
9. Characteristics...............................................................6
10. Package outline............................................................8
11. Legal information.........................................................9
12. Contents...................................................................... 11
© WeEn Semiconductors Co., Ltd. 2017. All rights reserved
For more information, please visit: http://www.ween-semi.com
For sales office addresses, please send an email to: salesaddresses@ween-semi.com
Date of release: 24 April 2017
BT145-800RT
Product data sheet
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