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Thyristors

Gate Turn-off SCRs

Silicon Controlled Rectifiers (SCR)
For TV Horizontal Deflection
Repetitive
Peak Forward
Off-State
Voltage
(Volts)		 RMS
On-State
Current
(Amps)		 Surge
Current
(Amps)		 Maximum Ratings Typical
Turn-Off
Time
(µs)		 Rate of Rise
Voltage
(V/µs)		 Critical Exponential Package Style
(hover over image for larger view)
On-State
Voltage
(Volts)		 Gate
Trigger
Current
(mA)		 Gate
Trigger
Voltage
(Volts)		 Holding
Current
(mA)
VDRM ITRMS ISURGE VT IGT VGT IHOLD tq dv/dt
230 700 8 90 2.16 50 2 100 1.8 700 TO66TO66
TO66
TO66
231 600 8 90 2.16 50 2 100 - 700
 

Silicon Gate Controlled Switch

Gate Turn-Off Thyristor
NTE Type
No.		 Description
and
Application		 Repetitive
Peak Forward
Off-State
Voltage
(Volts)		 Maximum Ratings Typical
Turn-On
Delay Time
(mS) 		Typical
Turn-On
Rise Time
(mS)		 Typical
Holding
Current
(mA)		 Package Style
(hover over image for larger view)
On-State
Anode
Current
(Amps)		 Surge
On-State
Current
(Amps)		 On-State
Voltage
(Volts)		 Gate
Trigger
Voltage
(Volts)		 Gate
Trigger
Current
(mA)
VDRM IT ITSM VT VGT IGT td trr IHOLD
276 SCR, Gate Turn Off TV Application 1250 5 80 5.3 1.5 120 0.2 1.3 300 TO66 (Japanese)TO66 (Japanese)
TO66 (Japanese)
TO66 (Japanese)
 

Integrated Thyristor/Rectifier (ITR)


NTE
Type
No.		 Description and
Application		 Maximum Ratings Typical
Turn-Off
Time
(µs)		 Typical
Holding
Current
(mA)		 Package Style
(hover over image for larger view)
RMS
On-State
Current
(Amps)		 Surge
Current
(Amps)		 Repetitive
Peak Forward
Off-State
Voltage
(Volts)		 Gate
Turn-Off
Current
(mA)		 Gate
Turn-Off
Voltage
(Volts)
ITRMS ITSM VDRM IGT VGT tq IHOLD
308 TV Horizontal Deflection
& Commutating Switch		 8 80 800 50 2 5.1 50 TO66TO66
TO66
TO66
310 TV Horizontal Deflection
& Trace Switch		 8 80 800 50 2 2.9 -
308P TV Horizontal Deflection
& Commutating Switch		 8 80 700 45 4 4.2 - TO220TO220
TO220
TO220
 
Description:
The NTE308 and NTE310 series integrated thyristor/rectifiers are all-diffused power monolithic circuits that incorporate a silicon controlled rectifier and a silicon rectifier on a common pellet. The NTE308 series types are used as bipolar switches to control horizontal yoke current during the beam trace interval; the NTE310 series types are used as commutating switches to initiate trace-retrace switching.
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