HGD34G16S21 — pin-to-pin replacement for K4B4G1646E-BCNB

Looking for a second source for K4B4G1646E-BCNB (三星 Samsung)? HGD34G16S21 is the HGCHIPS pin-to-pin compatible replacement: footprint, ball map and function are compared part-by-part against the original datasheet, so no PCB redesign and no firmware change are needed. Designed for allocation shortages, EOL situations and second-source qualification.

HGD34G16S21 key parameters

HGCHIPS Part NumberHGD34G16S21
Replaces (original PN)K4B4G1646E-BCNB
Original Brand三星 Samsung
Product FamilyDDR3 SDRAM
Density / Rating4Gbit
Speed / Output2133
CompatibilityPin-to-pin drop-in
Availability48h dispatch on stock / long-life price lock
Sample Policy10 pcs MOQ, credited against first order

Why teams qualify HGD34G16S21

  • Pin-to-pin / drop-in — footprint, ball map and function compared part-by-part against the original datasheet. No PCB redesign, no firmware change.
  • Lot-level test reports — 100% inspection at our Shenzhen test center, with per-lot data you can archive for IQC.
  • Stock ships in 48h — stock lines leave Shenzhen within 48 hours; long-life programs can be price-locked.
  • 10 pcs sample MOQ — validate a second source in small quantity before releasing volume; sample cost is credited against the first production order.

Related pages

· DDR3 SDRAM replacement selection · original PN page: K4B4G1646E-BCNB replacement · Model Finder

Request HGD34G16S21 samples and pricing

Send your target part number, monthly usage and target price — we reply within 24 business hours (same day for stock parts). Tel: +86 760 8992 4799 Email: info@hgtech.cc

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