Desolder Capacitor 400v 33uF Safetly?

[xan]

Hi Everyone,

i need to desolder this Cap 400v 33uF i'm not an expert so i ask what i should take care? i need to short it before desoldering ?? ??

Thank's!

[singapol]

From my experience these low uf caps will lose it's charge  a few minutes after power is switched off but
if you can't wait then use a 500 - 1K ohm 5 watt white ceramic power resistor with uncut and heatshrinked sleeved leads to discharge safely. If very big caps use safety eye goggles.

[xan]

ahh ok so it will be safe 'cause it some years this board it's gone! thank's !!!

[kripton2035]

measure the voltage at the capacitors pins, using a multimeter. it should be near zero if it's been off for years.

[xan]

yes of course 0! with my tester )) tnx!

[Gregg]

Small incandescent lamps make fun capacitor discharge devices which allow the user to see the results; just pick an appropriate voltage rated  lamp.  Also an analog meter will slowly discharge a capacitor; but I may have just revealed my age.

[kripton2035]

there are also some handy tools (and cheap too) to do this job.
http://www.dx.com/fr/p/repair-tools-sparkpen-capacitor-discharge-pen-for-camera-mobile-phone-home-appliances-129179#.WLPiV3p_d9I

[tggzzz]

With any capacitor having voltages that could hurt, be aware of the phenomenon known as "dielectric absorbtion" or "soakage". The effects are as if an isolated capacitor slowly "recharges itself" after being discharged.