(10) Adjustable Zener - 2½ to 36 V (or Audio Amp) Genuine Texas Inst. TL431C

Description

1117
Most purchases qualify for a **
Combined Shipping Discount
**
Fast eMail
Fast Shipping
Guaranteed Good-on-Arrival
TL431C ZENER / Shunt Regulator
(10) - Genuine Texas Instruments (TI)
Datasheet:
https://linearparts.com/documents/TL431a-ti-32pg.pdf
"The Adjustable 2½ to 36 Volt Zener" (or 400 mW Audio Amp)
Experimenters love this simple but versatile
programmable
regulator. A TL431 and a single small trimmer pot will replace a whole assortment of zeners. Better yet, since the voltage is continuously adjustable, you will do it with
better precision
.
Never settle for a 'close' fixed zener value again. After all, what good is a 1% zener, if it's the wrong value?
Basic Application. See datasheet at
https://linearparts.com/documents/TL431a-ti-32pg.pdf
for other configurations.
Setting the voltage is easy. See datasheet for simple algebra used in various configurations.
This device works as a current shunt, just like a zener. It will sink 1 to 100 mA to maintain a precise
Positive
or
Negative
voltage from 2½ to 36 VDC. All you need is the series current limiting resistor (as with zeners) and a voltage divider consisting of two small resistors (R1/R2) to program the voltage.
Replace R1/R2 with a trimmer for a precision adjustable zener diode.
Add a 'pass' transistor for higher load currents.
Can be wired as an adjustable, constant current source/sink too!
Need a simple AUDIO AMPLIFIER?
See the 2 examples below.
Check the datasheet. It has many applications to spur your imagination. This 'zener' can even be used as a
microphone / phono amplifier
(left) or as a Crystal Radio amplifier at
https://linearparts.com/images/TL431-xtal-radio-amp.gif
using a 32 Ohm speaker without a transformer! (See our other auctions for transformers and 32 Ohm speakers.)
Popular TO-92 3-terminal package. Only 3 resistors (not included) are needed to make a
precision
regulated voltage source. The perfect replacement especially for tight tolerance zener diodes.
431-10
*************************************
ham radio etronic e-tronic hamtronic qba BootsParts USA boots
PAYMENT and SHIPPING
**
We offer a
Combined Shipping Discount
for most purchases (e.g. excludes books)
if paid with
ONE SINGLE PAYMENT
with eBay's
SHOPPING CART
**
Condition of Goods
Unless otherwise noted above:
NOS (New Old Stock) or better, clean, unused
30 day Non-DOA, Good-on-Arrival Guarantee
Untested, but NO JUNK or suspect parts
PCB parts are thru-hole, NO SMD/SMT
Small parts may be bulk packed
Manufacturers and Date Codes may vary
Attention
International
bidders only:
Sorry, we ship to
US ZIP Codes ONLY
.
We
DO NOT ship Internationally
.
We
ONLY
ship to
Registered US addresses
.
We
DO NOT accept INTERNATIONAL payments
.
IMPORTANT: The parts we sell are categorized as new because they are unused, but many of our parts are those rare, hard-to-find, discontinued, manufacturing surplus and
/
or old stock commonly known in the parts business as 'NOS' (New Old Stock). Some of our stock pictures show date codes which may vary from the actual product shipped.
Parts from a larger OEM package may be repacked for smaller lot size orders or for more practical handling and shipping. See our store for other listed quantities.
We strive to give full and accurate descriptions to earn your 5-Star Feedback. Any known deficiencies are listed in the detailed description. Datasheets are provided when available. Some datasheets may be close but not a perfect match because of part revisions or because they may be from a different manufacturer. If you have any questions concerning our products please email us before purchasing. Your complete satisfaction is important to us before and after the sale. Thank you.
110520