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Home › Obsolete

Obsolete and end-of-life components — sourced, not just listed

A part reaches end-of-life and the authorised channel drops it. The design is still in production, the board still needs spares, and the only question left is who can find a genuine lot. That is the work this page is about.

3,329discontinued part numbers on record
186device categories covered
1,635currently available from stock
24hreply on a part number

How a discontinued part gets answered

  1. You send the part number and quantity. No account, no minimum, no form to fill in beyond that.
  2. We check the Shenzhen and Hong Kong channels the same day. Excess inventory, contract manufacturer surplus, and lots held by other distributors are all fair game.
  3. You get one of three answers, plainly. In stock — quantity, date code and price at your volume. Can source — price and lead time. Cannot get it — said straight, so you can plan around it instead of waiting on us.
  4. Nothing ships until the lot has been checked. If a lot is refurbished, pulled from a board, or a different date code than advertised, the quote says so before you order.

What we do not do

We do not publish a stock figure for a part we cannot put our hands on. An "in stock" line on this site means stock is recorded against that part number right now; "source to order" means we will go looking, and we will tell you if we fail. Blanket promises on obsolete parts are how buyers end up with relabelled goods.

Browse by category

Categories with at least 15 discontinued part numbers on record. The second column is how many are recorded here; the third is how many we can supply from stock today.

CategoryOn recordAvailable now
Instrumentation, Op Amps, Buffer Amps21360
TVS / ESD Protection188166
Linear Voltage Regulators (LDO)13957
Voltage Regulators - DC DC Switching Regulators13079
Flip-Flops11456
Drivers, Receivers, Transceivers10136
AC DC Converters, Offline Switchers8723
LED Drivers ICs7450
Optocouplers6952
Buffers, Drivers, Receivers, Transceivers6520
Analog Switches, Multiplexers, Demultiplexers6427
Signal Switches, Multiplexers, Decoders6435
Analog-to-Digital Converters (ADC)6329
Memory6219
Microcontrollers (MCU)5945
Voltage Reference5820
Analog and Digital Output5518
Varistors, MOVs4926
Motor Drivers, Controllers4925
PTC Resettable Fuses4919
Crystals & Oscillators4534
DIP Switches4322
RF Transceiver Modules and Modems4014
Battery Management3927
LED Indication - Discrete3810
RF Transceiver ICs3718
Clock Buffers, Drivers369
Power Distribution Switches, Load Drivers3410
Gate Drivers3216
Comparators3218
TRIACs309
Supervisors3015
Switches (Solid State)3012
NTC Thermistors2927
Digital Isolators2713
Linear Comparators265
Pressure Sensors, Transducers - Industrial260
DC DC Converters2518
Audio Special Purpose258
AC DC Configurable Power Supply Modules2524
Current Regulation/Management2410
Power Management - Specialized2319
Fuses2220
Digital to Analog Converters (DAC)226
Clock Generators, PLLs, Frequency Synthesizers229
DC DC Switching Controllers227
Translators, Level Shifters2114
Diodes2115
MOSFETs1911
Video Processing193
Counters, Dividers1811
Linear, Compass (ICs)1713
RF Antennas166
ADCs/DACs - Special Purpose167
Audio Connectors163
RF Transmitters160
Gas Discharge Tube Arresters (GDT)1510
LED Character and Numeric1511

Manufacturers most affected

Texas Instruments 1,153MAXIM 239ADI 166STMicroelectronics 134SEMBO 59RENESAS 51ISOCOM 49onsemi 49Diodes Incorporated 44TE Connectivity 40Infineon 38Youen 27Doeshare 27SHOUDING 27
Looking for a part that is no longer made?

Send the part number, the quantity and what it is used in. We reply within 24 hours — with stock, a lead time, or a straight no.

Email us — reply within 24 hours
Lifecycle status is taken from manufacturer and distributor data feeds and shown as published. A part marked discontinued here may still be available on the secondary market for years; a part marked sold out is one we have previously recorded stock against.