24h reply, always 1,000 part numbers 1 pc minimum Shenzhen stock and office together

Obsolete and hard-to-find electronic components — checked before we quote.

Shenzhen-based independent supplier. Fifteen years sourcing the parts the franchised channels have dropped. Some lines sit in our own warehouse; the rest we pull from a local network we know well. Either way you get a checked answer on stock, price and lead time within 24 hours.

In stock right now

Part numberManufacturerCategory PackageStockFrom
02SSR-32H JST Free Hanging, Panel Mount P=1mm 430 USD 0.194
74HC244D,653 Nexperia Buffers, Drivers, Receivers, Transceivers SOIC-20-300mil 22,800 USD 0.317
AD620ARZ-REEL ADI Instrumentation, Op Amps, Buffer Amps SOIC-8 20,200 USD 9.72
BLUENRG-345MC STMicroelectronics RF Transceiver ICs QFN-48-EP(6x6) 2,700 USD 7.50
FF450R17ME4 Infineon IGBT Modules 8 USD 91.15
IRSM836-084MATR Infineon Full, Half-Bridge (H Bridge) Drivers PQFN-36L(12x12) 5,500 USD 7.77
LM397MFX/NOPB Texas Instruments Comparators SOT-23-5 27,000 USD 0.445
MCP6541T-E/OT Microchip Comparators SOT-23-5 18,600 USD 0.535
NX3L1T3157GMZ NXP Analog Switches, Multiplexers, Demultiplexers SOT-886 140 USD 0.539
RT9490WSC Richtek Battery Chargers WL-CSP-56B(3.5x2.9) 2,050 USD 7.62
THD 12-2423 TRACO POWER DC DC Converters (Off-Board) 12 USD 48.97
TPSI3050QDWZRQ1 Texas Instruments Isolators - Gate Drivers SOIC-8 20,100 USD 7.09

See all 1,000 part numbers →


What you get, every time

  • Checked answers within 24 hours — “no” included. If we cannot get the part, you hear that instead of silence.
  • Every quote states where the part comes from. Our own stock, distributor surplus, factory excess, or pulled parts. Pulled parts are never sold as new.
  • A photo of the actual lot before dispatch, on request. Not a stock image of the same model.

How we work

  1. You send the part number and quantity.
  2. We check it against our own stock and our local network.
  3. You get a clear answer within 24 hours: yes, no, or yes with conditions.
  4. We ship after confirmation — with a photo of the actual lot first, if you want it.

Why buyers stay with us

Checked answers, not guessed ones

Plenty of suppliers reply fast with a number they never verified. We reply fast with a number we have. When we cannot confirm something, we say so — usually the same day.

Substitutes we have actually cross-checked

When a line is discontinued, we name the pin-compatible and function-compatible options — and the one caveat worth checking before you design it in. That judgement is the part no stock-lookup tool does for you.

You know exactly what you are buying

Most suppliers hide where a part came from. We label it. It costs us nothing to be honest about it, and it is the reason customers come back for the second order.


Questions we get asked

Do you actually hold stock?

Partly. The lines we turn over regularly sit in our own Shenzhen warehouse — for those, we can ship the same day and send you a photo of the actual lot. Everything else comes through our local network and is confirmed before we quote. We do not pretend the whole catalogue is on our shelves.

What is your minimum order?

There is no fixed MOQ. It depends on the line and where it sits. Sample quantities are usually possible — just ask.

What if the part is wrong on arrival?

Tell us what happened and we will put it right. Handling and return terms are written into the quote, so nothing is left to interpretation afterwards.

How do I pay?

T/T and Trade Assurance are the usual routes. Terms are agreed per order.


Have a part number? Send it.

You will have an answer within 24 hours — including “we cannot get it”.

Where we are

Shenzhen Haitai Innovation Technology Co., Ltd.

Building B, Phase I, China Merchants Group Qianhai Economic and Trade Center
No. 151 Zimao West Street, Nanshan Street
Qianhai Shenzhen-Hong Kong Cooperation Zone
Shenzhen 518052, China

Hours — Monday to Friday, 09:00–18:00 GMT+8. Requests that arrive outside these hours are answered the next working morning.

Visits — by appointment. Tell us the part numbers a day ahead and we will have them on the table.

Map — open the address in Google Maps

Location Qianhai, Shenzhen Shenzhen–Hong Kong Cooperation Zone
Time zone GMT+8 Same as Hong Kong and Singapore
Reply window 24 hours Sourcing, stock and price checked before we answer