BT136-500F TECCOR [Teccor Electronics], BT136-500F Datasheet - Page 130
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BT136-500F
Manufacturer Part Number
BT136-500F
Description
Thyristor Product Catalog
Manufacturer
TECCOR [Teccor Electronics]
Datasheet
1.BT136-500F.pdf
(223 pages)
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AN1002
Figure AN1002.8
Figure AN1002.9
The relationships of gating, latching, and holding for several
device types are shown in the following table. For convenience
all ratios are referenced to Quadrant I gating.
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1 A Sensitive SCR
15 A Alternistor
Sensitive
10 A Triac
Sensitive
*
4 A Triac
6 A SCR
Devices
Triac
Resistor is provided for limiting gate
current (I
SCR
G
G
“Amplified Gate” Thyristor Circuit
Typical Gating, Latching, and Holding Relationships of 4 A Triac at 25 °C
GTM
) peaks to power device.
A
K
MT2
MT1
*
*
50
G
G
Typical Ratio of Gating, Latching, and Holding Currents at 25 °C
I
----------------- -
I
40
GT
GT
1.6
1.5
1.5
–
–
II
I
QUADRANT II
QUADRANT III
A
K
MT2
MT1
30
Power
SCR
I
------------------- -
GT
I
Power
Triac
GT
2.5
1.4
1.8
–
–
III
I
20
I
--------------------
GT
I
GT
10
2.7
3.1
–
–
–
AN1002 - 4
IV
I
10
10
20
20
(mA)
0
The following table and Figure AN1002.9 show the relationship of
gating, latching, and holding of a 4 A device.
I
I
--------------- -
I
H
H
I
GT
L
(+)
(–)
1.2
1.6
2.4
3.2
25
Parameter
I
I
I
I
GT
I
H
10
L
(mA)
(mA)
(mA)
--------------- -
I
Ratio
I
GT
L
20
4.8
4.0
7.0
–
–
II
QUADRANT I
QUADRANT IV
I
Typical 4 A Triac Gating, Latching,
Quadrant I
and Holding Relationship
30
10
12
10
I
--------------- -
I
L
GT
1.2
1.8
2.1
–
–
III
Quadrants or Operating Mode
I
I
I
GT
L
(Dotted Line)
40
(Solid Line)
Quadrant II
17
48
10
I
--------------- -
I
L
GT
1.3
2.0
–
–
–
IV
I
©2002 Teccor Electronics
Thyristor Product Catalog
(mA)
Quadrant III
--------------- -
I
I
18
12
12
GT
H
1.0
1.1
2.2
2.6
25
+
Application Notes
I
Quadrant IV
--------------- -
I
GT
I
H
1.2
1.6
1.9
27
13
12
–
–
(-)
I
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