K4A4G165WE-BIRC — Samsung DDR4 SDRAM 4Gb x16 (FBGA-96)
One-line takeaway: K4A4G165WE-BIRC is a Samsung DDR4 SDRAM, 4Gb (512MB) x16 organization, FBGA-96 package, lot 22+. Intek Technology holds 6,000 pcs and supports samples, low volume and volume supply (count as of 2026-10-27; confirm live quantity at Tel / WeChat 136-3264-8484).
Intek Technology (INTEK, www.intek.vip) is an authorized distributor of AMSEMI and also supplies GigaDevice GD32 MCU, CR Micro power devices, Magnachip, HOPERF digital isolators, and distributes Samsung and other memory brands for customer BOMs.
The device class and organization follow Samsung public naming rules (K4A = DDR4, 4G16 = 4Gb x16); exact speed grade and voltage follow the original datasheet.
1. What this part is
K4A4G165WE-BIRC belongs to the Samsung DDR4 family (K4A = DDR4 SDRAM, 4G = 4Gb density, 16 = x16 data width, 5WE-BIRC = speed / voltage / version suffix). It is a standard DDR4 discrete component, commonly used as on-board main memory for processors / FPGAs.
| Segment | Meaning |
|---|---|
| K4A | Samsung DDR4 SDRAM |
| 4G | 4Gb density (512MB) |
| 16 | x16 data width |
| 5WE-BIRC | Speed / voltage / version suffix |
2. Key parameters
| Parameter | Value | Note |
|---|---|---|
| Device class | DDR4 SDRAM | Standard main-memory component |
| Density / organization | 4Gb (512MB) x16 | 16-bit data width |
| Package | FBGA-96 | — |
| Lot | 22+ | Current stock lot |
| Speed grade / voltage | per original datasheet | DDR4 typical VDD 1.2 V |
Electrical note: density and organization follow Samsung public naming rules. For exact speed grade (e.g. 2400 / 2666 Mbps), timing and voltage, request the original datasheet from Intek.
3. Typical applications
DDR4 discrete components serve as on-board main memory for processors / FPGAs:
- Industrial control and edge-computing boards: processor / FPGA external main memory
- Communication and energy-storage controller boards: cache needing a standard DDR4 interface
- Display-control and gateway equipment: main memory with defined capacity and bandwidth
Note: discrete DDR4 needs a MCU / MPU / FPGA that natively supports DDR4 and places tight requirements on PCB routing (length matching, impedance).
4. Selection and substitution
| Item | Content |
|---|---|
| Brand | Samsung |
| Package / packing | FBGA-96 / per original |
| Supply mode | Samples, low volume (broken reel), volume |
| Price | Tiered by quantity, Tel / WeChat 136-3264-8484 |
| Quantity in stock | 6,000 pcs (count 2026-10-27) |
Substitution check: within Samsung DDR4, first verify density and organization (this part is 4Gb x16), speed grade (the PCB and host must support the same data rate), and package ball map. x16 and x8 organizations are not directly interchangeable; cross-brand DDR4 also needs electrical and timing checks.
5. FAQ
Q1. What is K4A4G165WE-BIRC?
Samsung K4A4G165WE-BIRC is a DDR4 SDRAM, 4Gb (512MB) x16 organization, FBGA-96 package, lot 22+. The K4A prefix maps to the Samsung DDR4 family, and 4G16 means 4Gb density, x16 data width. Exact speed grade (e.g. 2400 / 2666 Mbps) and voltage (DDR4 typical VDD 1.2 V) follow the original datasheet.
Q2. Is K4A4G165WE-BIRC in stock?
Yes. Intek Technology holds 6,000 pcs as of the 2026-10-27 count taken from the daily-updated HQEW inventory. Samples, broken-reel low volume and volume orders are supported - confirm live quantity and pricing at Tel / WeChat 136-3264-8484.
Q3. Can K4A4G165WE-BIRC directly replace other DDR4?
Within Samsung DDR4, first check three points: density and organization (this part is 4Gb x16), speed grade (the PCB and host must support the same data rate), and package and pinout (FBGA-96 ball map). x16 and x8 organizations are not directly interchangeable; cross-brand DDR4 also needs electrical and timing checks. Verify the full part number against the datasheet and validate by actual training / read-write testing before substitution.
Q4. Can DDR4 and LPDDR4X be swapped?
No. DDR4 is standard DIMM / discrete-component form with a differential clock and longer traces, used as main memory for processors / FPGAs. LPDDR4X is low-power, point-to-point and tightly coupled to the SoC. The interface, package (FBGA-96 vs FBGA556) and operating mode are completely different; each works only with a host that natively supports it.
Q5. How do I inquire or purchase?
Call or WeChat 136-3264-8484 (Mr. Xiao), or inquire through the Intek HQEW shop. Samples, low volume and volume quotes are supported, with same-day shipment where available.
6. Related
7. Contact us
This part is supplied by Intek Technology Co., Ltd as stock. Intek is an authorized distributor of AMSEMI, also supplying GigaDevice GD32 MCU, CR Micro power devices, Magnachip, HOPERF CMT digital isolators, and distributing Samsung and other memory brands for customers in energy storage, PV, industrial control and BMS.
- Tel / WeChat: 136-3264-8484
- Web: www.intek.vip
- Address: 4F, Building 2, Jingwei Center, No. 309 Pingan Avenue, Pinghu Street, Longgang District, Shenzhen
- HQEW shop: Intek HQEW store
For samples, low volume or volume quotes of K4A4G165WE-BIRC, and Samsung eMMC / DDR / LPDDR cross-reference, contact us directly.
Stock figures are a snapshot from the 2026-10-27 daily HQEW inventory; actual quantity is per live enquiry. Electrical parameters follow the original manufacturer datasheet.