SS-401 Datasheet, PDF (1/7 Pages) STMicroelectronics – Back to back SCR module

MSS40, MSS50
Back to back SCR module
Table 1. Main features
Symbol
Value
Unit
I_T(RMS)
55 and 70
A
G2
A2
V_DRM/V_RRM
800 and 1200
V
A1
I_GT
50
mA
G1
Description
t(s) ^{Packaged in ISOTOP modules, the MSS40 /}
MSS50 Series is based on two back-to-back SCR
uc ^{configurations, providing high noise immunity.}
d They are suitable for high power applications such
ro ^{as solid state relays, heating control systems,}
welding equipment, motor control circuits...
te ^{P The compactness of the ISOTOP package allows}
le ^{high power density and optimized power bus}
connections. Thanks to their internal ceramic pad,
so they provide high voltage insulation (2500 V_RMS),
b _{complying with UL standards (File ref: E81734).}
- ^O _{Figure 1. Pin connections}
ISOTOP
Table 2. Order codes
Part numbers
MSS40-1200
MSS50-800
MSS50-1200
Marking
MSS40-1200
MSS50-800
MSS50-1200
roduct(s) _{1:Thyristor 2 Anode (A2)}
P _{2: Thyristor 2 Gate (G2)}
te ^{3: Thyristor 1 Anode (A1)}
Obsole ^{4:Thyristor 2 Gate (G1)}
4
3
1
2
G1
A1
A2
G2
July 2007
Rev 4
1/7
www.st.com
7