MCR69-2 Datasheet, PDF (1/8 Pages) ON Semiconductor – SILICON CONTROLLED RECTIFIERS

MCR69-2, MCR69-3
Silicon Controlled Rectifiers
Reverse Blocking Thyristors
Designed for overvoltage protection in crowbar circuits.
• Glass-Passivated Junctions for Greater Parameter Stability and
Reliability
• Center-Gate Geometry for Uniform Current Spreading Enabling
High Discharge Current
• Small Rugged, Thermowatt Package Constructed for Low Thermal
Resistance and Maximum Power Dissipation and Durability
• High Capacitor Discharge Current, 750 Amps
• Device Marking: Logo, Device Type, e.g., MCR69–2, Date Code
MAXIMUM RATINGS (TJ = 25°C unless otherwise noted)
Rating
Symbol Value
* Peak Repetitive Off–State Voltage(1)
(TJ = 40 to +125°C, Gate Open)
VDRM,
VRRM
MCR69–2
50
MCR69–3
100
Peak Discharge Current(2)
ITM
750
On-State RMS Current
IT(RMS)
25
(180° Conduction Angles; TC = 85°C)
Average On-State Current
IT(AV)
16
(180° Conduction Angles; TC = 85°C)
Peak Non-Repetitive Surge Current
(1/2 Cycle, Sine Wave, 60 Hz,
TJ = 125°C)
Circuit Fusing Considerations
(t = 8.3 ms)
ITSM
300
I2t
375
Unit
Volts
Amps
Amps
Amps
Amps
A2s
Forward Peak Gate Current
(t ≤ 1.0 µs, TC = 85°C)
Forward Peak Gate Power
(t ≤ 1.0 µs, TC = 85°C)
Forward Average Gate Power
(t = 8.3 ms, TC = 85°C)
Operating Junction Temperature Range
IGM
PGM
PG(AV)
TJ
2.0
20
0.5
– 40 to
+125
Amps
Watts
Watt
°C
Storage Temperature Range
Tstg
– 40 to
°C
+150
Mounting Torque
—
8.0
in. lb.
(1) VDRM and VRRM for all types can be applied on a continuous basis. Ratings
apply for zero or negative gate voltage; however, positive gate voltage shall
not be applied concurrent with negative potential on the anode. Blocking
voltages shall not be tested with a constant current source such that the
voltage ratings of the devices are exceeded.
(2) Ratings apply for tw = 1 ms. See Figure 1 for ITM capability for various
duration of an exponentially decaying current waveform, tw is defined as
5 time constants of an exponentially decaying current pulse.
(3) Test Conditions: IG = 150 mA, VD = Rated VDRM, ITM = Rated Value,
TJ = 125°C.
http://onsemi.com
SCRs
25 AMPERES RMS
50 thru 100 VOLTS
G
A
K
4
1
2
3
TO–220AB
CASE 221A
STYLE 3
PIN ASSIGNMENT
1
Cathode
2
Anode
3
Gate
4
Anode
ORDERING INFORMATION
Device
Package
Shipping
MCR69–2
TO220AB
500/Box
MCR69–3
TO220AB
500/Box
© Semiconductor Components Industries, LLC, 1999
1
February, 2000 – Rev. 0
Publication Order Number:
MCR69/D