LM337LZ

W

Walter Harley

Guest
Went looking for small quantity of LM337LZ, a TO92 100mA negative adjustable
regulator (counterpart of LM317LZ). Was surprised to discover that Mouser
no longer stocks them and Digikey has 0 in stock. (Newark and Jameco do
show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? (Can't use
SMT on this particular project, due to client requirement.) National still
shows full production on the part.
 
On Fri, 18 Nov 2005 23:23:06 -0800, the renowned "Walter Harley"
<walterh@cafewalterNOSPAM.com> wrote:

Went looking for small quantity of LM337LZ, a TO92 100mA negative adjustable
regulator (counterpart of LM317LZ). Was surprised to discover that Mouser
no longer stocks them and Digikey has 0 in stock. (Newark and Jameco do
show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? (Can't use
SMT on this particular project, due to client requirement.) National still
shows full production on the part.
Click to expand...
Maybe a supply glitch during the RoHS transition. Future shows stock
of the LM337LZ/NOPB but not of the LM337LZ.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 
Walter Harley wrote:
Went looking for small quantity of LM337LZ, a TO92 100mA negative adjustable
regulator (counterpart of LM317LZ). Was surprised to discover that Mouser
no longer stocks them and Digikey has 0 in stock. (Newark and Jameco do
show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? (Can't use
SMT on this particular project, due to client requirement.) National still
shows full production on the part.
Click to expand...
They (Mouser) offer the NTE equivalent (NTE1901) for which
you get the privilege of paying way more. :-(

Electronic Goldmine has the LM337LZ for 69 cents - item #G22114
http://www.goldmine-elec.com/default.htm

Ed
 
"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:jJedncWtgqpYT-PenZ2dnUVZ_v-dnZ2d@speakeasy.net...
Went looking for small quantity of LM337LZ, a TO92 100mA negative adjustable
regulator (counterpart of LM317LZ). Was surprised to discover that Mouser
no longer stocks them and Digikey has 0 in stock. (Newark and Jameco do
show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? (Can't use
SMT on this particular project, due to client requirement.) National still
shows full production on the part.


Check Arrow (http://www.arrownac.com/arrow)
Click to expand...

--
James T. White
 
Dear Mr. Walter Harley,

We do have the stock from NS of the LM337LZ. Can you pleased tell us your
target price with QTY ?

Our delivery cost is as following :

USD 10.00 Per delivery ( 7 to 14 Days to your address )
USD 28.00 Per delivery ( 3 to 7 Days to your address )

Thanks !

--
Patrick Cheung
Town Target Technology Limited
Address : 1805, Wu Sang House, 655 Nathan Road, Mongkok, Kowloon, Hong Kong.
Tel : 2505-5838 Fax : 2505-8121
E-mail : patrick.cheung@towntarget.com.hk
Web-site : http://www.townt.com/towne/ or www.towntarget.com.hk



"Walter Harley" <walterh@cafewalterNOSPAM.com> źśźgŠóślĽóˇsťD:jJedncWtgqpYT-PenZ2dnUVZ_v-dnZ2d@speakeasy.net...
Went looking for small quantity of LM337LZ, a TO92 100mA negative
adjustable regulator (counterpart of LM317LZ). Was surprised to discover
that Mouser no longer stocks them and Digikey has 0 in stock. (Newark and
Jameco do show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? (Can't use
SMT on this particular project, due to client requirement.) National
still shows full production on the part.
Click to expand...
 
"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:jJedncWtgqpYT-PenZ2dnUVZ_v-dnZ2d@speakeasy.net...
Went looking for small quantity of LM337LZ, a TO92 100mA negative
adjustable regulator (counterpart of LM317LZ). Was surprised to discover
that Mouser no longer stocks them and Digikey has 0 in stock. (Newark and
Jameco do show stock, though.)

Is this just a fluke, or is there some other variant of this or some newer
negative adjustable regulator that I should be using instead? [...]
Click to expand...

Sorry if I was unclear. Let me rephrase:

Is the LM337LZ becoming obsolete? If so, is there some newer part that has
replaced it?
 
"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message news:eek:--dnQbqAfeMHR_enZ2dnUVZ_t6dnZ2d@speakeasy.net...
"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message news:jJedncWtgqpYT-PenZ2dnUVZ_v-dnZ2d@speakeasy.net...
Went looking for small quantity of LM337LZ, a TO92 100mA negative adjustable regulator (counterpart of LM317LZ). Was
surprised to discover that Mouser no longer stocks them and Digikey has 0 in stock. (Newark and Jameco do show
stock, though.)

Is this just a fluke, or is there some other variant of this or some newer negative adjustable regulator that I
should be using instead? [...]


Sorry if I was unclear. Let me rephrase:

Is the LM337LZ becoming obsolete? If so, is there some newer part that has replaced it?
Click to expand...
Digikey ( their pn LM337LZ-ND ) has 1657 in stock at present.....Paul
 
You can check the information from NS web-site.

Yes. It is useful.

Patrick

"Walter Harley" <walterh@cafewalterNOSPAM.com> źśźgŠóślĽóˇsťD:eek:--dnQbqAfeMHR_enZ2dnUVZ_t6dnZ2d@speakeasy.net...
"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:jJedncWtgqpYT-PenZ2dnUVZ_v-dnZ2d@speakeasy.net...
Went looking for small quantity of LM337LZ, a TO92 100mA negative
adjustable regulator (counterpart of LM317LZ). Was surprised to discover
that Mouser no longer stocks them and Digikey has 0 in stock. (Newark
and Jameco do show stock, though.)

Is this just a fluke, or is there some other variant of this or some
newer negative adjustable regulator that I should be using instead?
[...]


Sorry if I was unclear. Let me rephrase:

Is the LM337LZ becoming obsolete? If so, is there some newer part that
has replaced it?
Click to expand...
 
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