5

Revised: January 25, 2013 08:34 AM

©2013 Littelfuse, Inc

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

8 Amp Alternistor Quadrac for LED dimmer applications

Q6008LTH1LED Series

Soldering Parameters

Reflow Condition

Pb – Free assembly

Pre Heat

-Temperature Min (T

150°C

-Temperature Max (T

200°C

-Time (min to max) (t

60 – 180 secs

Average ramp up rate (LiquidusTemp)

(T

5°C/second max

T

5°C/second max

Reflow

-Temperature (T

217°C

-Temperature (t

60 – 150 seconds

PeakTemperature (T

Time within 5°C of actual peak

Temperature (t

20 – 40 seconds

Ramp-down Rate

5°C/second max

Time 25°C to peakTemperature (T

8 minutes Max.

Do not exceed

280°C

Environmental Specifications

Test

Specifications and Conditions

High Temperature

Voltage Blocking

MIL-STD-750: Method 1040, Condition A

Rated V

hours

Temperature Cycling

MIL-STD-750: Method 1051

-40°C to 150°C, 15-minute dwell,

100 cycles

Biased Temperature &

Humidity

EIA/JEDEC: JESD22-A101

320VDC, 85°C, 85%RH, 1008 hours

High Temp Storage

MIL-STD-750: Method 1031

150°C, 1008 hours

Low-Temp Storage

-40°C, 1008 hours

Thermal Shock

MIL-STD-750: Method 1056

0°C to 100°C, 5-minute dwell,

10-second transfer, 10 cycles

Autoclave

(Pressure Cooker Test)

EIA/JEDEC: JESD22-A102

121°C, 100%RH, 2atm, 168 hours

Resistance to

Solder Heat

MIL-STD-750: Method 2031

260°C, 10 seconds

Solderability

ANSI/J-STD-002, Category 3, Test A

Lead Bend

MIL-STD-750: Method 2036, Condition E

Physical Specifications

Terminal Finish

1005 Matte Tin-plated

Body Material

UL Recognized epoxy meeting

flammability classification 94v-0

Lead 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

25

time to peak temperature

Preheat

Preheat

Ramp-up

Ramp-up

Ramp-down

Ramp-do