Series 150CR

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Electrical Characteristics Maximum Ratings	Symbol	Units
RMS Forward Current	IT (RMS)	A	235
Average Forward Current	IT (AV)	A	150
Peak One-cycle Surge @ 8.3ms.	IT SM	A	4,000
I2t @ 8ms.	I2t	A2/sec	66,000
Maximum Forward Voltage Drop @ 25°C at Noted Amps	VTM	V A	1,000
Maximum Voltage Ratings	VRRM VDRM	V	1,600
Maximum Thermal Resistance Junction to Case		°C/W	0.13
Maximum Rate of Rise on State Current (non-rep.)	di/dt	A/µ sec.	800
Minimum Critical Exponential Rate of Rise Off - State Voltage	dv/dt 125°	V/µ sec.	300
Maximum Gate Voltage to Trigger	VGT	V	3.00
Maximum Non Triggering Gate Voltage	VGD	V	0.15
Typical Gate Current to Trigger	IGT	MA	150
Maximum Turn Off Time 200 Volts/µ second reapplied	Tq	µ second	10-25
Mechanical Characteristics For Tq Add Letter "X" and Turn Off time After Voltage
Mounting Torque	-----	inch Lbs.	300
Thread Size	-----	-----	3/4-16
Mounting Force PSI Gauge	MIN	Lbs.	-----
Mounting Force PSI Gauge	MAX	Lbs.	-----

Maximum Operating Temperature on All SCRs (TJ)=125°C

SCR NOMENCLATURE

All SCRs are negative base. Flat packs have one polarity, to reverse, point the arrow of the polarity sign to the side you want positive. When the amperage of the device is unknown, check the stud or puck size and select a device of the same size with the highest rating available. When the voltage of the device is unknown, use the transformer secondary voltage or the dc voltage times 2.5 for device voltage.

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