
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/20/18
Thyristors
Surface Mount – 50 - 100V > MCR69-2, MCR69-3
Rating Part Number Symbol Value Unit
Peak Repetitive Off-State Voltage (Note 1)
(TJ = -40 to +125°C, Gate Open)
MCR169-2 VDRM,
VRRM
50
V
MCR69-3 100
Peak Discharge Current (Note 2) ITM 750 A
On-State RMS Current (180° Conduction Angles; TC = 85°C) IT (RMS) 25 A
Average On-State Current (180° Conduction Angles; TC = 80°C) IT(AV) 16 A
Peak Non-Repetitive Surge Current (1/2 Cycle, Sine Wave, 60 Hz, TJ = 125°C) ITSM 300 A
Circuit Fusing Considerations (t = 8.3 ms) I2t 375 A2sec
Forward Peak Gate Current (Pulse Width ≤ 1.0 µs, TC = 85°C) IGM 2.0 A
Forward Average Gate Power (t = 8.3 ms, TC = 80°C) PGM 20 W
Operating Junction Temperature Range TJ-40 to +125 °C
Storage Temperature Range Tstg -40 to +150 °C
Mounting Torque – 8.0 in. lb.
Maximum Ratings (TJ = 25°C unless otherwise noted)
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal
operating conditions) and are not valid simultaneously. If these limitsare exceeded, device functional operation is not implied, damage may occur and reliability
may be affected.
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.
Thermal Characteristics
Characterstic Symbol Value Unit
Thermal Resistance, Junction-to-Case RΘJC 1.5 °C/W
Thermal Resistance, Junction-to-Ambient RΘJA 60
Maximum Lead Temperature for Soldering Purposes, 1/8” from
case for 10 seconds TL260 °C