Buying Guides
Sourcing obsolete ICs: options and risks
When a part reaches end of life, you still have options. Here is how they compare.
Supply network · Shenzhen / Global
Hard-to-find parts, checked on the bench.
Obsolete, restricted and high-value components. Marking, date code, condition and packing are confirmed before you receive a quote.
01Find the part
Start with one exact part number.
02From the tray to your quote
One sourcing path you can follow.
- Step 1Send the requirementA part number, a label photo or a full BOM.
- Step 2We confirm the lotMarking, date code, condition, packing, documents.
- Step 3Review the quoteStock, lot, lead time and price by email. No order until you say so.
03On the bench
What we confirm before a quotation.
Public listings help you start. The actual lot, packaging and traceability boundary is confirmed with the formal quote, never assumed.
- Check 01
Part number & marking
The ordering code and the marking on the parts are matched to your requirement.
- Check 02
Date code
Stated per lot, so you can judge lifecycle and storage age before you commit.
- Check 03
Condition & packing
New or otherwise, sealed or repacked, tray, reel or tube: written into the quote.
- Check 04
Traceability
Which documents and photos exist for this lot, and which do not, is stated plainly.
04Parts we supply
Ready to quote.
| Part number | Manufacturer | Package | Availability | Action |
|---|---|---|---|---|
| NTCALUG03A103G |  Vishay | 2-PIN | Available | Inspect |
| GD32F470VKH6 | GigaDevice | BGA100 | Available | Inspect |
| STM32H743VIH6 |  STMicroelectronics | TFBGA-100 | Available | Inspect |
| EFM8BB51F16G-C-QFN20R |  Silicon Labs | QFN20 | Available | Inspect |
| ETA5050V33S2F |  ETA | SOT23-5 | Available | Inspect |
| ME6206A30M3G |  MICRONE | SOT-23 | Available | Inspect |
05Guides & notes
Buy with fewer surprises.
Short notes on quotes, date codes, packaging and replacement parts.
Buying Guides
Prepare your BOM for a faster quote
What to put in a parts list so suppliers can quote quickly and correctly.
Buying Guides
Date codes and traceability: what to ask
What date codes and lot codes tell you, and the questions to ask before you buy.
06What we source
One desk, every sourcing path.
Microcontrollers & ProcessorsMCUs, microprocessors, application processors, SoCs and DSPs for embedded and industrial designs.661 part numbers
Power ManagementPMICs, LDOs, DC-DC and AC-DC converters, battery management, supervisors, references and drivers.730 part numbers
Analog & Data ConversionOp amps, comparators, ADCs, DACs, analog front ends and analog switches.767 part numbers
Interface ICsCAN, RS-485, RS-232 and USB interface silicon, level translators, buffers and transceivers.503 part numbers
Logic & Programmable LogicLogic gates and logic ICs, FPGAs, CPLDs and PLDs, including long-life and legacy devices.500 part numbers
RF & WirelessRF ICs, front ends and amplifiers, Bluetooth, NFC / RFID and wireless transceivers.389 part numbers
SensorsSensor ICs for temperature, light, motion, environment and position measurement.228 part numbersSensirion
Clock & TimingClock generators, PLLs, timing ICs and real-time clocks.204 part numbers
Isolation & OptocouplersDigital isolators and optocouplers for safe signal transfer across isolation barriers.204 part numbers
Memory & StorageDRAM, NAND, Flash, memory modules, memory cards and industrial storage.329 part numbers
Cypress Semiconductor
Optical & NetworkingOptical transceivers, optical modules, network cards and communication controllers.23 part numbersRealtek
Semiconductors & ICsSpecialty ICs, display drivers, discrete power devices and other silicon outside the dedicated families.27 part numbers
Standard Components & BOM SourcingRoutine components and BOM requirements handled through a single RFQ.Quoted from your BOM
Boards & AssembliesPopulated controller boards, replacement assemblies and board-level requirements.Quoted from your BOM
Package images are illustrative models, not photos of actual parts.
07Part numbers
Browse part numbers by category.
3D model
3D model08Send the requirement
One part or a whole BOM. Sent once.
We confirm stock, lot, lead time and pricing by email. An RFQ does not create an order.
