© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 6
1 Publication Order Number:
MCR12/D
MCR12DG, MCR12MG,
MCR12NG
Silicon Controlled Rectifiers
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.
Features
• Blocking Voltage to 800 Volts
• On−State Current Rating of 12 Amperes RMS at 80°C
• High Surge Current Capability − 100 Amperes
• Rugged, Economical TO−220AB Package
• Glass Passivated Junctions for Reliability and Uniformity
• Minimum and Maximum Values of IGT, VGT an IH Specified for
Ease of Design
• High Immunity to dv/dt − 100 V/msec Minimum at 125°C
• These are Pb−Free Devices
MAXIMUM RATINGS (T
J
= 25°C unless otherwise noted)
Rating Symbol Value Unit
Peak Repetitive Off−State Voltage (Note 1
)
(T
J
= −40 to 125°C, Sine Wave,
50 to 60 Hz,
Gate Open)
MCR12DG
MCR12MG
MCR12NG
V
DRM,
V
RRM
400
600
800
V
On-State RMS Current
(180° Conduction Angles; T
C
= 80°C)
I
T(RMS)
12 A
Peak Non-repetitive Surge Current
(1/2 Cycle, Sine Wave 60 Hz, T
J
= 125°C)
I
TSM
100 A
Circuit Fusing Consideration (t = 8.33 ms) I
2
t 41 A
2
sec
Forward Peak Gate Power
(Pulse Width ≤ 1.0 ms, T
C
= 80°C)
P
GM
5.0 W
Forward Average Gate Power
(t = 8.3 ms, T
C
= 80°C)
P
G(AV)
0.5 W
Average On-State Current
(180° Conduction Angles; T
C
= 80°C)
I
T(AV)
7.8 A
Forward Peak Gate Current
(Pulse Width ≤ 1.0 ms, T
C
= 90°C)
I
GM
2.0 A
Operating Junction Temperature Range T
J
−40 to +125 °C
Storage Temperature Range T
stg
−40 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. V
DRM
and V
RRM
for all types can be applied on a continuous basis. Ratings
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.
SCRs
12 AMPERES RMS
400 thru 800 VOLTS
TO−220
CASE 221A−09
STYLE 3
1
www.onsemi.com
MARKING
DIAGRAM
A = Assembly Location
Y = Year
WW = Work Week
x = D, M, or N
G = Pb−Free Package
AKA = Diode Polarity
2
3
Device Package Shipping
ORDERING INFORMATION
MCR12DG TO−220AB
(Pb−Free)
50 Units / Rail
MCR12NG TO−220AB
(Pb−Free)
50 Units / Rail
MCR12MG TO−220AB
(Pb−Free)
50 Units / Rail
K
G
A
PIN ASSIGNMENT
1
2
3
Anode
Gate
Cathode
4
Anode
AY WW
MCR12xG
AKA
