58
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
4 Amp Sensitive & Standard Triacs
Lxx04xx & Qxx04xx Series
Soldering Parameters
Reflow Condition 1Co'SFFBTTFNCMZ
Pre Heat
- Temperature Min (Ts(min))150°C
- Temperature Max (Ts(max))200°C
- Time (min to max) (ts)oTFDT
Average ramp up rate (Liquidus Temp)
(TL) to peak 5°C/second max
TS(max) to TL - Ramp-up Rate 5°C/second max
Reflow - Temperature (TL) (Liquidus) 217°C
- Temperature (tL)oTFDPOET
Peak Temperature (TP)260°C +0/-5
Time within 5°C of actual peak
Temperature (tp)oTFDPOET
Ramp-down Rate 5°C/second max
Time 25°C to peak Temperature (TP)8 minutes Max.
Do not exceed 280°C
Environmental Specifications
Test Specifications and Conditions
AC Blocking MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @ 125°C for 1008 hours
Temperature Cycling
MIL-STD-750, M-1051,
100 cycles; -40°C to +150°C; 15-min
dwell time
Temperature/
Humidity
EIA / JEDEC, JESD22-A101
1008 hours; 320V - DC: 85°C; 85%
rel humidity
High Temp Storage MIL-STD-750, M-1031,
1008 hours; 150°C
Low-Temp Storage 1008 hours; -40°C
Thermal Shock
MIL-STD-750, M-1056
10 cycles; 0°C to 100°C; 5-min dwell
time at each temperature; 10 sec (max)
transfer time between temperature
Autoclave
EIA / JEDEC, JESD22-A102
168 hours (121°C at 2 ATMs) and
100% R/H
Resistance to
Solder Heat MIL-STD-750 Method 2031
Solderability ANSI/J-STD-002, category 3, Test A
Lead Bend MIL-STD-750, M-2036 Cond E
Physical Specifications
Terminal Finish 100% Matte Tin-plated
Body Material UL recognized epoxy meeting flammability
classification 94V-0
Terminal Material Copper Alloy
Design Considerations
Careful selection of the correct device for the application’s
operating parameters and environment will go a long way
toward extending the operating life of the Thyristor. Good
design practice should limit the maximum continuous
current through the main terminals to 75% of the device
rating. Other ways to ensure long life for a power discrete
semiconductor are proper heat sinking and selection of
voltage ratings for worst case conditions. Overheating,
overvoltage (including dv/dt), and surge currents are
the main killers of semiconductors. Correct mounting,
soldering, and forming of the leads also help protect
against component damage.
Time
Temperature
TP
TL
TS(max)
TS(min)
25
tP
tL
tS
time to peak temperature
Preheat
reheat
Ramp-up
Ramp-up
Ramp-down
amp-