1
SURFACE MOUNTABLE
PHASE CONTROL SCR
Bulletin I2117
25TTS..S SERIES
V
T
< 1.25V @ 16A
I
TSM
= 250A
V
R
/ V
D
= 1200V
Major Ratings and Characteristics
D
2
PAK (SMD-220)
I
T(AV)
Sinusoidal 16 A
waveform
I
RMS
25 A
V
RRM
/
V
DRM
800 and 1200 V
I
TSM
250 A
V
T
@ 16 A, T
J
= 25°C 1.25 V
dv/dt 500 V/µs
di/dt 150 A/µs
T
J
- 40 to 125 °C
Characteristics 25TTS..S Units
Output Current in Typical Applications
T
A
= 55°C, T
J
= 125°C, footprint 300mm
2
NEMA FR-4 or G10 glass fabric-based epoxy
3.5 5.5
with 4 oz (140µm) copper
Aluminum IMS, R
thCA

= 15°C/W 8.5 13.5 A
Aluminum IMS with heatsink, R
thCA

= 5°C/W 16.5 25.0
Applications Single-phase Bridge Three-phase Bridge Units
Description/Features
The 25TTS..S new series of silicon controlled
rectifiers are specifically designed for medium
power switching and phase control applications.
The glass passivation technology used has reli-
able operation up to 125° C junction temperature.
Typical applications are in input rectification (soft
start) and these products are designed to be used
with International Rectifier input diodes, switches
and output rectifiers which are available in identi-
cal package outlines.