unknown components?

T

terrapinlogo

Member

• Dec 5, 2008

• #1

hi i have 7 components i have salvaged from old broken stuff that im not sure on their use. no1 is a green resistor like thing with bands from thicker end brown brown silver no2 is a glass tube with two metal prongs inside it no3 is a green disc ceramic like part with sck 2r55a written on it nos 4 to 7 are blue disc ceramic like parts with uk ah102m or sec 222m se written on them thanks for your help it is very much appreciated

 

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Nigel Goodwin

Super Moderator

Most Helpful Member

• Dec 5, 2008

• #2

They are suppresser components out of a mains filter - none are of much use to you.

102 is a 1000pF capacitor, and 222 is a 2200pF capacitor - both special filter rated ones.

 

T

terrapinlogo

Member

• Dec 5, 2008

• #3

ok so the blue ones are basically capacitors?

 

Hero999

Banned

• Dec 5, 2008

• #4

The more greenish coloured one might be an inrush current limiter or PTC resistor,

Measure it with an Ohm meter, if it measures >10R then it's an current inrush limiter, <1R it's a PTC resistor, if it's open circuit then it's a capacitor.

 

audioguru

Well-Known Member

Most Helpful Member

• Dec 5, 2008

• #5

Why do people post very fuzzy pictures from a kid's cheap cell phone?
Why not use a camera set for closeups?

 

K

kchriste

New Member

Forum Supporter

• Dec 5, 2008

• #6

Looks like #2 is a neon bulb.

audioguru said:

Why do people post very fuzzy pictures from a kid's cheap cell phone?
Why not use a camera set for closeups?

Click to expand...

It is much more challenging for us to guess the items in the "contest" then.

 

Hero999

Banned

• Dec 6, 2008

• #7

Connect the neon in series with a 0.5W 100k resistor is you want to connect it to 230VAC, use 47k for 120VAC.

1 might be an inductor, it's difficult to know without seeing it close up and testing it with a DVM.

 

M

mark_3094

New Member

• Apr 14, 2009

• #8

I think the green one is an NTC power thermistor:

**broken link removed**

 

Last edited: Apr 14, 2009

B

badmojo

New Member

• Jan 26, 2012

• #9

sck 2r55a: SCK means "Surge Current Killer".. the rest are value.. it is resistor and capasitor at thesame time it depend how to apply it ,i love this electronic device