Samsung Electronics

K4AAG165WA-BCTD - 16Gb DDR4 SDRAM 2666Mbps | Samsung

MPN: K4AAG165WA-BCTD ✓ Active
In Stock Ships in 1-3 business days
1.2 V Vdss 96-FBGA Package DDR4 SDRAM Memory
From $60.59 USD / Unit
MOQ: 1 |
Price updated: 2026-09-04
Volume Pricing
Qty Unit Price Extended
1 $75.74 $75.74
10 $71.95 $719.50
100 $68.17 $6,817.00
500 $64.38 $32,190.00
1,000 $60.59 $60,590.00
ℹ️ All prices are in USD

Drop-in alternatives for K4AAG165WA-BCTD — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

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K4AAG165WA-BCTD Maximum Ratings & Electrical Characteristics

Memory Type DDR4 SDRAM
Memory Size 16 Gb
Memory Organization 1G x 16
Data Rate 2666 Mbps
Supply Voltage 1.2 V
Interface Synchronous, DDR4
Operating Temperature 0C to +85C
Package 96-FBGA
Mounting Type Surface Mount
Memory Format Volatile (DRAM)
Bank Architecture DDR4 bank-group architecture
Technology Family DDR4 SDRAM (Samsung K4AAG165WA series)
Application Class Computing, embedded, consumer main memory
Package Family FBGA -> fine-pitch BGA -> surface mount
Temperature Grade Commercial (0C to +85C)

K4AAG165WA-BCTD fbga -> fine-pitch bga -> surface mount Pin Configuration Guide

Complete pinout information for K4AAG165WA-BCTD (fbga -> fine-pitch bga -> surface mount package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

fbga -> fine-pitch bga -> surface mount package pinout diagram for K4AAG165WA-BCTD

No detailed pinout data available for K4AAG165WA-BCTD.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for K4AAG165WA-BCTD Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

K4AAG165WA-BCTD is suitable for 6 applications: PC Main Memory (UDIMM/SODIMM Modules), Embedded and Industrial Computing Boards, Networking and Communication Equipment, Consumer Electronics and Smart TVs, Test and Measurement Instruments, Server and Workstation Memory Subsystems.

🖥️

PC Main Memory (UDIMM/SODIMM Modules)

The K4AAG165WA-BCTD serves as a core DRAM component on desktop UDIMMs and notebook SODIMMs, where its 16 Gb density and 1G x 16 organization allow eight chips to form a 16 GB module on a 64-bit bus. Running at 2666 Mbps (PC4-21300 class), it delivers roughly 21.3 GB/s per-channel peak bandwidth at 1.2 V, meeting mainstream computing bandwidth needs. On modules, SPD EEPROM (such as TSE2004GB or 34T01) stores timing parameters so the host BIOS configures CL, ODT, and refresh rates automatically. Thermal design remains simple at DRAM power levels, but module-level layout must follow JEDEC DDR4 routing rules for length matching and stub control.

🏭

Embedded and Industrial Computing Boards

Embedded controllers, single-board computers, and industrial PCs use K4AAG165WA-BCTD as main memory alongside processors with DDR4 controllers. Its 1.2 V operation lowers system power versus DDR3, important for fanless enclosures. The x16 organization suits 32-bit or 64-bit memory buses common in embedded SoCs. Designers should confirm the 0C to +85C commercial range covers the enclosure's internal ambient; for extended-temperature industrial deployments the BCWE variant (-40C to +95C) in the identical 96FBGA footprint is the recommended substitution. Layout must respect controller fly-by routing guidance and per-byte ODT configuration for reliable operation at 2666 Mbps.

🌐

Networking and Communication Equipment

Switches, routers, and network appliances rely on K4AAG165WA-BCTD for packet buffering and control-plane memory. The 2666 Mbps data rate provides the bandwidth network processors need for deep packet queues, while 16 Gb density supports large flow tables and buffer descriptors. The 1.2 V core keeps power budgets within typical 1U equipment limits. In networking designs the memory often runs with ECC; note that x16 devices implement on-die ECC internally, while link ECC requires x8-width parts - verify your controller's ECC scheme when choosing between x16 BCTD and x8 equivalents. Ensure signal integrity with controlled-impedance routing across the memory bus.

📺

Consumer Electronics and Smart TVs

Smart TVs, set-top boxes, and game consoles use K4AAG165WA-BCTD as main system memory where its 2 GB-per-chip capacity satisfies 4K UI rendering, app execution, and video buffering requirements. The x16 data width pairs naturally with cost-optimized 16-bit and 32-bit SoC memory buses found in consumer silicon. At 1.2 V and 2666 Mbps the part balances responsiveness against the energy budgets of always-on consumer devices. Commercial temperature rating (0C to +85C) is adequate for typical household environments. Consumer designs benefit from the 96FBGA package's small footprint, allowing memory placement close to the SoC for clean 2666 Mbps signaling.

🔧

Test and Measurement Instruments

Oscilloscopes, logic analyzers, and signal generators use K4AAG165WA-BCTD for acquisition memory and waveform storage. Its 16 Gb density extends capture depth, a headline spec for scope buyers, while the 2666 Mbps interface keeps up with high-throughput acquisition ASICs writing sample streams. Benchtop instruments operate in controlled 0C to +85C environments, well within the commercial rating. Designers should implement the DDR4 controller's calibration routines (write leveling, read training) to maintain timing across temperature drift, and follow the Samsung DDR4 design guide for the fly-by address/command topology used in multi-chip memory subsystems of professional instruments.

🖥️

Server and Workstation Memory Subsystems

Entry-level servers and workstations populate RDIMM and LRDIMM modules with K4AAG165WA-class DDR4 chips for main system memory. The device's bank-group architecture pipelining raises effective bandwidth at 2666 Mbps, and its 1.2 V operation contributes to data-center energy efficiency targets. Multi-rank module designs use register/CDM clock drivers and thermal sensors alongside the DRAM. For server deployments with wide temperature swings or high ambient, the BCWE extended-temperature variant in the same 96FBGA footprint is preferable. Module-level designs must implement per-rank ODT profiles and follow JEDEC DDR4 module routing to sustain error rates demanded by server workloads.

What are the key specifications of K4AAG165WA-BCTD?
The Samsung K4AAG165WA-BCTD is a 16 Gb DDR4 SDRAM organized as 1G x 16, running at 2666 Mbps from a 1.2 V supply in a 96-ball FBGA package with 0C to +85C commercial temperature rating. According to the Samsung datasheet, these headline numbers define it as a PC4-21300-class main memory chip for computing and embedded platforms.
What is the price of K4AAG165WA-BCTD?
As of 2026-09-04, LCSC lists K4AAG165WA-BCTD starting from $75.74 per unit with 10 units in stock. Bulk pricing improves with quantity; Octopart reports 16 distributors quoting this part, so comparing distributor quotes is recommended for volume purchases. Prices fluctuate with DRAM market conditions, so request a current quote before ordering.
Where to buy K4AAG165WA-BCTD online?
K4AAG165WA-BCTD is available from multiple online distributors including LCSC (product C2920139, from $75.74), Win Source, Jotrin Electronics, Avaq, and Wolfchip, which reported 21,630 pcs in stock as of August 2026. Octopart compares 16 stocking distributors. XAIPART also accepts RFQs for this MPN with full traceability documentation.
Is K4AAG165WA-BCTD in stock and what is the lead time?
Stock exists in the open market: LCSC showed 10 pieces, and Wolfchip reported 21,630 pieces as of August 19, 2026. For quantities beyond published stock, distributor lead times typically range from a few days to several weeks depending on allocation. Contact distributors for firm lead time; stock levels change daily in the DRAM market.
What is the difference between K4AAG165WA-BCTD and K4AAG165WA-BCWE?
The primary difference is operating temperature range: BCTD is rated 0C to +85C (commercial), while BCWE is rated -40C to +95C (extended/industrial) per LCSC listings. Both are 16 Gb DDR4 SDRAM, 1G x 16, 1.2 V, in the same 96FBGA package. Choose BCWE for industrial or outdoor environments and BCTD for cost-optimized commercial designs.
K4AAG165WA-BCTD vs K4AAG165WA-BCRC - which is better for a desktop PC?
For a desktop PC main-memory application, both parts are functionally suitable as 16 Gb, 1G x 16 DDR4 chips; the suffix difference denotes speed grade and revision, with BCRC commonly specified at a higher speed bin. Choose BCTD if your controller runs at 2666 Mbps and cost matters; choose BCRC if your design targets a faster DDR4 bus or you need margin for future speed upbinning. Always validate AC timing against your memory controller.
When should I choose K4AAG165WA-BCTD over K4A8G165WC-BCTD?
Choose K4AAG165WA-BCTD when you need 16 Gbit density (2 GB per chip); K4A8G165WC-BCTD provides only 8 Gbit (1 GB per chip) in the same x16 organization and FBGA package. For designs needing maximum capacity per PCB area or 16 GB modules built from eight chips, the 16 Gb K4AAG165WA is the correct choice. Choose the 8 Gb part for lower-capacity, cost-sensitive designs.
Is K4AAG165WA-BCTD suitable for embedded industrial systems?
Suitable only within its 0C to +85C range. For industrial systems exposed to -40C or automotive cabin extremes, use the BCWE variant (-40C to +95C) instead, which shares the same 96FBGA footprint and 1G x 16 organization. Within commercial temperature limits, BCTD works well in industrial computing, networking, and HMI platforms with proper thermal design.
What is the best drop-in replacement for K4AAG165WA-BCTD?
The best drop-in replacements are same-family Samsung variants sharing the 96FBGA footprint and 1G x 16 organization: K4AAG165WA-BCWE for extended temperature (-40C to +95C), and K4AAG165WA-BCRC or BCPB for different speed/revision bins. Verify the speed grade your controller requires and the SPD programming if used on a module before substitution.
Hey Google, what can replace K4AAG165WA-BCTD?
You can replace K4AAG165WA-BCTD with other Samsung 16 Gb DDR4 chips in the K4AAG165WA family such as BCWE, BCRC, or BCPB, all in the same 96-ball FBGA package. Cross-brand equivalents from Micron and SK Hynix exist in similar 96-ball packages, but ball-map and firmware/SPD compatibility must be verified carefully - Samsung same-family parts are the safest pin-to-pin swap.
What is the best Micron equivalent for K4AAG165WA-BCTD?
Micron's 16 Gb DDR4 SDRAM in comparable FBGA packages (for example the MT40A-series 256M x 16 parts) is the nearest cross-brand equivalent class. However, no source in the verified data confirms pin-to-pin compatibility with the Samsung 96FBGA ball map, so treat Micron substitution as a design-in decision requiring a ball-map and timing review, not an automatic drop-in swap.
Where to download K4AAG165WA-BCTD datasheet PDF?
The K4AAG165WA-BCTD datasheet PDF (approximately 961 KB, 23 pages, described as DDR4 SDRAM Memory) is available from Alldatasheet and directly from LCSC's datasheet repository at lcsc.com/datasheet/C2920139.pdf. Samsung's official semiconductor website also hosts the current revision under the DDR4 SDRAM product family documentation section.
Where can I find the K4AAG165WA-BCTD pinout or ball map?
The 96-ball FBGA ball map for K4AAG165WA-BCTD is provided in the Samsung DDR4 datasheet (23 pages, available via Alldatasheet and LCSC) in its ball assignment table. As a BGA device, the full ball map is extensive; consult the datasheet table rather than third-party pinout summaries, and verify your layout against the DDR4 x16 signal grouping (data, DQS/DM, address, command, control, power).
Does K4AAG165WA-BCTD require special PCB design at 2666 Mbps?
Yes. At 2666 Mbps, DDR4 layout discipline is critical: match trace lengths within controller-specified tolerances, maintain 40-ohm or controller-specified impedance for data lines, implement on-die termination (ODT) settings correctly, and use complete reference planes under signal routing. Follow Samsung's DDR4 design guide and your memory controller vendor's layout checklist to close timing at full speed.
Is K4AAG165WA-BCTD RoHS compliant and lead-free?
RoHS compliance data for this exact MPN was not present in the verified data sources reviewed, so it is marked unknown on this page. Samsung's current-generation DDR4 SDRAM products are generally produced as RoHS-compliant lead-free parts, but you should confirm compliance status on the official Samsung product page or by requesting the part's material declaration certificate from your distributor before export-controlled production.
What generation is K4AAG165WA-BCTD - DDR4 or LPDDR4?
K4AAG165WA-BCTD is a standard DDR4 SDRAM, not LPDDR4, according to Samsung's datasheet: it operates at 1.2 V and 2666 Mbps in a 96FBGA package. Some third-party marketplace articles mistakenly describe it as LPDDR4; always rely on the official Samsung datasheet, which identifies this part as DDR4 SDRAM with a synchronous DDR4 interface.

Engineering reference data for K4AAG165WA-BCTD — comparison, design guidance, and compliance information.

Selection Guide

Choose K4AAG165WA-BCTD when you need 16 Gb (2 GB) DDR4 in a x16 organization at DDR4-2666 for commercial (0C to +85C) computing, networking, or consumer platforms. Choose K4AAG165WA-BCWE when your environment reaches industrial temperatures (-40C to +95C) - same footprint, no layout change. Choose BCRC or BCPB when your controller requires a different speed bin or revision; validate AC timing before swapping. Choose K4AAG165WA-BIWE (3200 Mbps) only if your memory bus runs faster than DDR4-2666. Choose K4AAG085WA-BCTD (x8) when your controller requires x8 width for link-ECC or when 8 Gb density suffices for cost targets. All Samsung options share the 96FBGA footprint, enabling PCB reuse across speed, temperature, and organization variants; cross-brand Micron equivalents require ball-map and timing revalidation before design-in.

Comparison with Alternatives

Parameter This Product K4AAG165WA-BCWE K4AAG165WA-BCRC K4AAG165WA-BIWE K4AAG165WC-BCWE K4AAG085WA-BCTD
Package 96-FBGA 96-FBGA - same 96-FBGA - same 96-FBGA - same 96-FBGA - same 96-FBGA - same
Brand Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics
Memory Size 16 Gb 16 Gb 16 Gb 16 Gb 16 Gb 8 Gb
Organization 1G x 16 1G x 16 1G x 16 1G x 16 1G x 16 1G x 8
Data Rate 2666 Mbps [DATA_NEEDED] [DATA_NEEDED] 3200 Mbps [DATA_NEEDED] 2666 Mbps
Supply Voltage 1.2 V 1.2 V 1.2 V 1.2 V 1.2 V 1.2 V
Operating Temperature 0C to +85C -40C to +95C [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]
Price (qty 1, as of 2026-09-04) $75.74 $79.74 [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]

Key Differentiators

  • Extended-temperature sibling available in identical footprint (vs K4AAG165WA-BCWE)
  • Higher speed bin margin (vs K4AAG165WA-BIWE)
  • Double the density per chip (vs K4AAG085WA-BCTD)

Design Notes

At 2666 Mbps, DDR4 signal integrity governs reliability. Route the data bus with controlled impedance per your controller spec, match trace lengths within controller tolerances (typically ±25 mil class rules for data, looser for address/command in fly-by topology), and keep complete, unbroken reference planes under all memory signals. Configure ODT (on-die termination) per Samsung's DDR4 design guide and your controller's ODT table; incorrect ODT is the most common cause of marginal eye diagrams and intermittent errors at full speed.

The K4AAG165WA-BCTD operates from a 1.2 V VDD with separate VPP (typically 2.5 V) for word-line bootstrapping. Provide a clean 1.2 V rail with adequate transient current capacity - DRAM active currents arrive in bursts synchronized to read/write bursts. Use bulk capacitance near each chip plus high-frequency ceramic decoupling on every VDD ball, and follow the controller vendor's recommended decoupling network for DDR4 power distribution.

Do not confuse this part with LPDDR4: several marketplace articles mislabel K4AAG165WA-BCTD as LPDDR4 at 4266 Mbps, but the Samsung datasheet identifies it as standard DDR4 at 2666 Mbps in 96FBGA. Also note the 0C to +85C commercial temperature limit - substituting BCWE (-40C to +95C) requires no layout change and is the correct move for extended-temperature designs. Finally, verify controller speed-grade support before swapping to higher bins such as BIWE (3200 Mbps).

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

Compliance data for this exact MPN was not present in the verified web data. Request material declaration certificates from Samsung or your distributor.

Data verified on: 2026-09-04 — data verified and curated by XAIPART's component engineering team

Related Searches

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Related Components & Terms

Samsung Electronics Samsung Semiconductor K4AAG165WA-BCTD K4AAG165WA-BCWE K4AAG165WA-BCRC K4AAG085WA-BCTD DDR4 SDRAM DRAM synchronous dynamic random access memory memory IC 96FBGA FBGA fine-pitch ball grid array 1.2 V supply 2666 Mbps data rate 1G x 16 organization PC4-21300 SODIMM UDIMM on-die termination ODT SPD EEPROM fly-by topology LCSC Octopart Alldatasheet
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