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K1050E70 View Datasheet(PDF) - Teccor Electronics

Part NameK1050E70 Teccor-Electronics
Teccor Electronics 
DescriptionSIDAC(95 - 330 Volts)
K1050E70 Datasheet PDF : 6 Pages
1 2 3 4 5 6
Electrical Specifications
100-250
VAC
60 Hz
PUSH
TO
TEST
S1
S1
SWITCH TO TEST IN
EACH DIRECTION
IPK
100
1%
DEVICE
UNDER
TEST
IH
TRACE STOPS
SCOPE
SCOPE INDICATIONS
100-250
VAC
60 Hz
VBO
IH
VBO
VBO
LOAD
˚ 120-145
CONDUCTION
ANGLE
IH
IH
LOAD CURRENT
Figure 9.14 Dynamic Holding Current Test Circuit for Sidacs
Figure 9.15 Basic Sidac Circuit
(a) Circuit
VDC(IN) VB0
R
SIDAC
VC
VBO
VC
(b) Waveforms
t
C
IL
RL
IL
Rmax
VIN - VBO
IBO
t
Rmin
VIN - VTM
IH (MIN)
Figure 9.16 Relaxation oscillator Using a Sidac
INPUT
(See Note B)
2N6127
RBB1 =
(or equivalent) 150
50
50
RBB2 =
100
VBB1 =10 V
+ VBB2 =0
-
TEST CIRCUIT
VCE MONITOR
INPUT
VOLTAGE
0V
TIP-47
VCC = 20 V
RS = 0.1
100 mH
5V
COLLECTOR
CURRENT
0.63 A
0
+
IC MONITOR SIDAC VBO
-
COLLECTOR
VOLTAGE
10 V
VCE(sat)
tw 3 ms
(See Note A)
tw
100 mS
VOLTAGE AND CURRENT WAVEFORMS
NOTE A: Input pulse width is increased until ICM = 0.63A.
NOTE B: Sidac (or Diac or series of Diacs) chosen so that VBO is just below VCEO rating of transistor to be protected.
The Sidac (or Diac) eliminates a reverse breakdown of the transistor in inductive switching circuits where otherwise the
transistor could be destroyed.
Figure 9.17 Sidac Added to Protect Transistor for Typical Transistor Inductive Load Switching Requirements
SIDAC
9-6
Teccor Electronics
(972) 580-7777
Direct download click here
 

General Description
The Sidac is a silicon bilateral voltage triggered switch with greater power-handling capabilities than standard diacs. Upon application of a voltage exceeding the Sidac breakover voltage point, the Sidac switches on through a negative resistance region to a low on-state voltage. Conduction will continue until the current is interrupted or drops below the minimum holding current of the device. Teccor offers the complete voltage range (95-330) over three different packages:

• TO-92 (95-280 volts)
• Axial lead DO-15X (95-280 volts)
• Surface Mount DO-214AA (95-280 volts)
• TO-202AB (190-330 volts)

Features
• AC circuit oriented
• Glass-passivated junctions
• High surge current capability

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