Preferred Device
Reverse Blocking Thyristors
Designed primarily for half–wave ac control applications, such as
motor controls, heating controls, and power supplies; or wherever
half–wave, silicon gate–controlled devices are needed.
http://onsemi.com
• Blocking Voltage to 800 Volts
• On-State Current Rating of 25 Amperes RMS
• High Surge Current Capability — 300 Amperes
• Rugged, Economical TO–220AB Package
• Glass Passivated Junctions for Reliability and Uniformity
SCRs
25 AMPERES RMS
400 thru 800 VOLTS
• Minimum and Maximum Values of I , V , and I Specified for
GT GT
H
Ease of Design
G
• High Immunity to dv/dt — 100 V/µsec Minimum @ 125°C
• Device Marking: Logo, Device Type, e.g., MCR25D, Date Code
A
K
MAXIMUM RATINGS (T = 25°C unless otherwise noted)
J
Rating
Symbol
Value
Unit
4
(1)
Peak Repetitive Off–State Voltage
V
Volts
DRM,
(T = –40 to 125°C, Sine Wave, 50 to
V
RRM
J
60 Hz, Gate Open)
MCR25D
MCR25M
MCR25N
400
600
800
On-State RMS Current
(180° Conduction Angles; T = 80°C)
I
25
A
A
T(RMS)
1
2
C
3
Peak Non-repetitive Surge Current
(1/2 Cycle, Sine Wave 60 Hz,
I
300
TSM
TO–220AB
CASE 221A
STYLE 3
T = 125°C)
J
2
2
Circuit Fusing Consideration
(t = 8.3 ms)
I t
373
20.0
0.5
A sec
PIN ASSIGNMENT
Cathode
Forward Peak Gate Power
(Pulse Width ≤ 1.0 µs, T = 80°C)
P
Watts
Watt
A
GM
1
2
3
4
C
Anode
Forward Average Gate Power
(t = 8.3 ms, T = 80°C)
P
G(AV)
Gate
C
Anode
Forward Peak Gate Current
(Pulse Width ≤ 1.0 µs, T = 80°C)
I
2.0
GM
C
Operating Junction Temperature Range
Storage Temperature Range
T
–40 to
+125
°C
J
ORDERING INFORMATION
T
stg
–40 to
+150
°C
Device
MCR25D
MCR25M
MCR25N
Package
TO220AB
TO220AB
TO220AB
Shipping
50 Units/Rail
50 Units/Rail
50 Units/Rail
(1) V
DRM
and V for all types can be applied on a continuous basis. Ratings
RRM
apply for zero or negative gate voltage; 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.
Preferred devices are recommended choices for future use
and best overall value.
Semiconductor Components Industries, LLC, 1999
1
Publication Order Number:
February, 2000 – Rev. 3
MCR25/D