Re: Ampohm BZX 1019 from fuel pump - what is it?
From: nospam (nospam_at_nospam.invalid)
Date: 09/13/04
- Next message: Jim Miller: "National AN-29: 2n4067 replacement?"
- Previous message: Tim Shoppa: "Re: AGC oscillator chips like Elantec EL4451 or the Motorola MC12061?"
- In reply to: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Next in thread: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Reply: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Messages sorted by: [ date ] [ thread ]
Date: Mon, 13 Sep 2004 14:13:25 +0100
"Lewin A.R.W. Edwards" <larwe@larwe.com> wrote:
>Chaos Master wrote:
>
>> Data received from Lewin A.R.W. Edwards on port COM1:
>> > cylindrical body with the part# (AMPOHM BZX 1019) silkscreened on it,
>> > and two stranded wires (red and black) coming out of one end.
>>
>> BZX1019 looks like a ZENER diode.
>
>Any idea what voltage?
There are some zener diode series the part numbers for which begin with
BZX. I don't think your part is particularly likely to be a zener diode
from the BZX part number.
AMPOHM seem to make a range of encapsulated parts for automotive
applications, mostly capacitors.
In this application I suspect a simple diode would do the job. A diode
wired to allow current to circulate through the coil when the contacts open
would prevent contact arcing. It would also delay the return of the
solenoid under spring pressure a little or reduce the frequency the pump
buzzes before it gets regulated. I suspect that is not a bad thing.
The peak current in the diode will be the same as the current in the coil
which you can measure or work out from measuring the coil resistance.
If slowing the collapse of current in the coil is a bad thing for some
reason then the part could be a resistor/capacitor snubber just to protect
the contacts, or perhaps a zener and normal diode in series.
If you are convinced the BZX 1019 part is dead try breaking it open to see
what is inside.
- Next message: Jim Miller: "National AN-29: 2n4067 replacement?"
- Previous message: Tim Shoppa: "Re: AGC oscillator chips like Elantec EL4451 or the Motorola MC12061?"
- In reply to: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Next in thread: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Reply: Lewin A.R.W. Edwards: "Re: Ampohm BZX 1019 from fuel pump - what is it?"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
