Page <4>

V1.0

23/02/24

Single Bipolar Transistor

Newark.com/multicomp-pro

Farnell.com/multicomp-pro

sg.element14.com/b/multicomp-pro

Recommended Reflow Solder Profiles

The recommended reflow solder profiles for Pb and Pb-free devices are shown below.

Figure 1 shows the recommended solder profile for devices that have Pb-free terminal plating, and where a Pb-free solder 

is used.

Figure 2 shows the recommended solder profile for devices with Pb-free terminal plating used with leaded solder, or for 

devices with leaded terminal plating used with a leaded solder.

Reflow profiles in tabular form

Profile Feature

Sn-Pb System

Pb-Free System

Average Ramp-Up Rate

~3°C/second

~3°C/second

Preheat

– Temperature Range

– Time

150-170°C

60-180 seconds

150-200°C

60-180 seconds

Time maintained above:

– Temperature

– Time

200°C

30-50 seconds

217°C

60-150 seconds

Peak Temperature

235°C

260°C max.

Time within +0 -5°C of actual Peak

10 seconds

40 seconds

Ramp-Down Rate

3°C/second max.

6°C/second max.