I would use a underside pre-heat unit and a hot air pencil.
 Removal, flux pen with a no-clean flux (if possible) and replacement time could be as quick as one minute depending on substrate composition, solder alloy and operator skill. 
Use caution to not overheat or ramp up the temperature on the device too quickly so as not to damage the device.

Scott Pallman
SMT Department Manager
[log in to unmask]
TEL: 203.288.5605

25 Marne Street
Hamden, CT 06514
FAX: 203.288.9202

www.cicems.com



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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Wettermann
Sent: Wednesday, February 19, 2014 5:24 PM
To: [log in to unmask]
Subject: [TN] SOT 23 Rework Time?

Hi All:

What is a "good" time for removal and replacement of an SOT23? Steps are ID, remove, site dress, replace with new, clean using IPA and inspect per Class II,

My average time is 3 minutes across several operators.

Thanks!

Bob Wettermann
BEST Inc
[log in to unmask]
Cell: 847-767-5745


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