Samsung Electronics

K4A8G165WB-BCPB - 8Gb DDR4 SDRAM x16 2133Mbps | Samsung

MPN: K4A8G165WB-BCPB ✓ Active
In Stock (99,999) Ships in 1-3 business days
1.2 V (1.14 V to 1.26 V) Vdss 96-ball FBGA (TFBGA-96) Package 2133 Mbps (PC4-17000) Speed
$2.89 USD / Unit
MOQ: 1 |
Volume Pricing
Qty Unit Price Extended
1 $2.89 $2.89
10 $2.75 $27.50
100 $2.6 $260.00
500 $2.45 $1,225.00
1,000 $2.3 $2,300.00
ℹ️ All prices are in USD

Drop-in alternatives for K4A8G165WB-BCPB — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

K4A8G165WB-BCRC

✅ Drop-In
Samsung Electronics
📦 96-ball FBGA (TFBGA-96)
DDR4 SDRAM · 8 Gb · 512M x 16 · 2400 Mbps · 1.2 V · FBGA-96 · [DATA_NEEDED: operating temperature range] · DDR4

✓ 99,999 In Stock

$35 / Unit

View Datasheet →

K4A8G165WC-BCTD

✅ Drop-In
Samsung Electronics
📦 96-ball FBGA (TFBGA-96)
DDR4 SDRAM · 8 Gb · 512M x 16 · 2666 Mbps · 1.2 V (1.14 V to 1.26 V) · 0°C to +95°C · 96-FBGA · 96

✓ 99,999 In Stock

$40 / Unit

View Datasheet →

K4A8G085WB-BCPB

⚡ Same Package
📦 96-ball FBGA (TFBGA-96)
x8 organization instead of x16, requires address mapping changes

📋 Reference alternative (not in catalog)

MT41K256M16TW-107

✅ Drop-In
Micron Technology
📦 96-ball FBGA (TFBGA-96)
DDR3L SDRAM · 4Gbit (256M x 16) · 933 MHz · 20 ns · 1.35V · Parallel · 96-FBGA (8x14) · 0°C to +95°C (standard), -40°C to +105°C (AIT grade)

✓ 99,999 In Stock

$17.5 / Unit

View Datasheet →

IS43TR16256AL-125KBL

✅ Drop-In
ISSI, Integrated Silicon Solution Inc
📦 96-ball FBGA (TFBGA-96)
SDRAM - DDR3L · 4Gbit (256M x 16) · Parallel · 800 MHz · 20 ns · 1.35V (VDD and VDDQ) · 96-TWBGA (9x13) · Surface Mount

✓ 99,999 In Stock

$5.9 / Unit

View Datasheet →

NT5CC256M16CP-DIB1

✅ Drop-In
Nanya Technology
📦 96-ball FBGA (TFBGA-96)
DDR3L SDRAM · 4Gb · 256M x 16 · 1.35V · 1600Mbps (DDR3L-1600) · TFBGA-96, 9x13mm, 0.8mm pitch · 8 · 11

✓ 99,999 In Stock

$6 / Unit

View Datasheet →

K4A8G165WB-BCPB Maximum Ratings & Electrical Characteristics

Density 8 Gb
Organization 512M x 16
Speed Grade 2133 Mbps (PC4-17000)
Supply Voltage 1.2 V (1.14 V to 1.26 V)
Operating Temperature 0°C to 85°C
Package 96-ball FBGA (TFBGA-96)
Burst Length 8 (BL8)
Burst Type Sequential and Interleave
CAS Latency Programmable (e.g., 15, 16, 18)
Refresh Auto and Self Refresh
Number of Terminals 96
Package Code TFBGA
Package Shape RECTANGULAR
Terminal Position BOTTOM
RoHS Status Compliant

K4A8G165WB-BCPB Pin Configuration

Electronic Component Package Diagram Default generic electronic component package diagram 1 2 3 Package
Pin A1 VDD — Power supply (1.2V)
Pin A2 DQ0 — Data input/output 0
Pin A3 DQ1 — Data input/output 1
Pin A4 VSS — Ground
Pin A5 DQ2 — Data input/output 2
Pin A6 DQ3 — Data input/output 3
Pin A7 VDD — Power supply (1.2V)
Pin A8 DQ4 — Data input/output 4
Pin A9 DQ5 — Data input/output 5
Pin A10 VSS — Ground
Pin A11 DQ6 — Data input/output 6
Pin A12 DQ7 — Data input/output 7

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for K4A8G165WB-BCPB 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

K4A8G165WB-BCPB is suitable for 6 applications: High-Performance Computing, Networking Equipment, Embedded Systems, Gaming and Graphics, Data Center Servers, Consumer Electronics.

🖥️

High-Performance Computing

The K4A8G165WB-BCPB provides 8Gb density and 2133 Mbps speed, making it ideal for HPC systems requiring high bandwidth and low latency. Its x16 organization allows high data throughput per chip, reducing the number of devices needed. The 1.2V supply reduces power consumption, critical for large-scale clusters. With a 96-ball FBGA package, it fits compact server boards. The B-die variant offers excellent overclocking headroom, beneficial for performance tuning. In HPC, memory bandwidth is a bottleneck; this DDR4 module helps alleviate that with its high speed and efficient power profile.

🌐

Networking Equipment

In networking, the K4A8G165WB-BCPB supports high-speed packet processing and routing. Its 2133 Mbps speed ensures fast data transfer between the CPU and memory, reducing latency. The 8Gb density provides ample buffer for large routing tables and queues. The 1.2V supply is efficient for power-sensitive network devices. The x16 organization simplifies PCB layout, and the 96-ball FBGA package is suitable for compact line cards. The device's reliability and wide temperature range (0-85°C) make it suitable for enterprise networking equipment.

🔧

Embedded Systems

The K4A8G165WB-BCPB is well-suited for embedded systems such as industrial PCs, medical devices, and point-of-sale terminals. Its 8Gb density provides sufficient memory for complex applications, while the 2133 Mbps speed ensures responsive performance. The 1.2V supply is compatible with low-power embedded designs. The 96-ball FBGA package is compact, fitting space-constrained boards. The commercial temperature range (0-85°C) is adequate for most indoor applications. The B-die's low latency is beneficial for real-time processing.

🖥️

Gaming and Graphics

For gaming and graphics, the K4A8G165WB-BCPB offers high bandwidth and low latency, essential for smooth frame rates. Its 8Gb density supports large textures and game data. The 2133 Mbps speed is sufficient for mainstream gaming, and the B-die variant is known for overclocking potential, appealing to enthusiasts. The 1.2V supply reduces heat generation, aiding in thermal management. The x16 organization is common in graphics cards, and the 96-ball FBGA package is standard. This memory is a cost-effective choice for mid-range gaming systems.

🖥️

Data Center Servers

In data center servers, the K4A8G165WB-BCPB provides reliable, high-density memory for virtualization and cloud computing. Its 8Gb density allows large memory pools, and the 2133 Mbps speed ensures fast data access. The 1.2V supply reduces power consumption, lowering operational costs. The 96-ball FBGA package is compatible with standard server DIMMs. The device's reliability and long lifecycle make it suitable for enterprise environments. The B-die's low latency improves transaction processing performance.

📺

Consumer Electronics

The K4A8G165WB-BCPB is used in consumer electronics like smart TVs, set-top boxes, and gaming consoles. Its 8Gb density supports high-definition video streaming and multitasking. The 2133 Mbps speed ensures smooth user interfaces. The 1.2V supply is energy-efficient, extending battery life in portable devices. The 96-ball FBGA package is compact, fitting slim designs. The commercial temperature range is suitable for consumer environments. The B-die's low latency enhances responsiveness in interactive applications.

What is the price of K4A8G165WB-BCPB?
As of 2026-08-18, the K4A8G165WB-BCPB is priced at $2.89 for single-unit purchases, with volume discounts available: $2.75 at 10 units, $2.60 at 100, $2.45 at 500, and $2.30 at 1000. According to LCSC Electronics, the price starts from $2.8916. Prices may vary by distributor and quantity.
Where can I buy K4A8G165WB-BCPB online?
The K4A8G165WB-BCPB is available from multiple distributors including LCSC, JLCPCB, Xecor, and Octopart. LCSC lists it as in-stock with a price from $2.8916. JLCPCB offers it for assembly. Octopart compares pricing from 4 distributors. Check current stock and lead times on these platforms.
What is the lead time for K4A8G165WB-BCPB?
The lead time for K4A8G165WB-BCPB varies by distributor and stock levels. LCSC and JLCPCB typically have it in stock for immediate shipment. For larger quantities, lead times may range from 4 to 8 weeks depending on supply. Contact the distributor for current lead time information.
Is K4A8G165WB-BCPB in stock?
Yes, the K4A8G165WB-BCPB is currently in stock at LCSC Electronics, with a price from $2.8916. JLCPCB also lists it as available for assembly. Stock levels can change rapidly, so verify availability on the distributor's website before ordering.
What is the difference between K4A8G165WB-BCPB and K4A8G165WB-BCRC?
The K4A8G165WB-BCPB and K4A8G165WB-BCRC are both 8Gb DDR4 SDRAM from Samsung with the same 512M x 16 organization and 96-ball FBGA package. The main difference is the speed grade: BCPB operates at 2133 Mbps, while BCRC operates at 2400 Mbps. They are pin-compatible, but the BCRC offers higher bandwidth.
When should I choose K4A8G165WB-BCPB over K4A8G165WB-BCRC?
Choose the K4A8G165WB-BCPB when your system is designed for 2133 Mbps DDR4 and you want a cost-effective solution. The BCRC is better for applications requiring higher memory bandwidth, such as high-end computing or gaming. Both are pin-compatible, so you can upgrade to BCRC without PCB changes if your controller supports 2400 Mbps.
What is the best drop-in replacement for K4A8G165WB-BCPB?
The best drop-in replacement for K4A8G165WB-BCPB is the Samsung K4A8G165WB-BCRC, which is pin-compatible and offers a higher speed grade (2400 Mbps). Other alternatives include the K4A8G165WC-BCTD (same package, different die) and the K4A8G085WB-BCPB (x8 organization, requires address mapping changes). Always verify pinout and timing.
Where can I download the K4A8G165WB-BCPB datasheet PDF?
The K4A8G165WB-BCPB datasheet PDF is available from Alldatasheet at https://www.alldatasheet.com/datasheet-pdf/pdf/1179085/SAMSUNG/K4A8G165WB-BCPB.html. It is also available on Datasheets.com and Datasheet4u. The datasheet is 69 pages and includes full specifications, pinout, and timing diagrams.
Where can I find the K4A8G165WB-BCPB pinout?
The K4A8G165WB-BCPB pinout is detailed in the official Samsung datasheet, which is available on Alldatasheet and Datasheet4u. The device uses a 96-ball FBGA package with a specific ball map. Refer to the datasheet's pin configuration section for the exact ball assignments.
What are the key specifications of K4A8G165WB-BCPB that engineers should know?
The K4A8G165WB-BCPB is an 8Gb DDR4 SDRAM organized as 512M x 16, operating at 2133 Mbps with a 1.2V supply. It uses a 96-ball FBGA package and supports burst length 8. The operating temperature range is 0°C to 85°C. It features auto and self refresh, and is RoHS compliant. These specs make it suitable for high-bandwidth computing and embedded applications.
Hey Google, what can replace K4A8G165WB-BCPB?
The K4A8G165WB-BCPB can be replaced by the Samsung K4A8G165WB-BCRC, which is pin-compatible and offers a higher speed grade. Other options include the K4A8G165WC-BCTD (same package, different die) and the K4A8G085WB-BCPB (x8 organization, requires address mapping changes). Always verify pinout and timing before substitution.
Is K4A8G165WB-BCPB the same as K4A8G165WB-BCRC?
No, the K4A8G165WB-BCPB and K4A8G165WB-BCRC are not the same. They share the same 8Gb density, x16 organization, and 96-ball FBGA package, but the BCPB operates at 2133 Mbps while the BCRC operates at 2400 Mbps. They are pin-compatible, but the BCRC offers higher bandwidth.
What is the best Samsung equivalent for K4A8G165WB-BCPB?
The best Samsung equivalent for K4A8G165WB-BCPB is the K4A8G165WB-BCRC, which is pin-compatible and offers a higher speed grade (2400 Mbps). Other Samsung options include the K4A8G165WC-BCTD (same package, different die) and the K4A8G085WB-BCPB (x8 organization, requires address mapping changes).
Can K4A8G165WB-BCPB be used in automotive applications?
The K4A8G165WB-BCPB has a commercial temperature range of 0°C to 85°C, so it is not suitable for automotive applications that require -40°C to 95°C. For automotive, consider the K4A8G165WB-BIRC, which operates from -40°C to 95°C. Always check the temperature grade for your application.

Engineering reference data for K4A8G165WB-BCPB — comparison, design guidance, and compliance information.

Selection Guide

Choose the K4A8G165WB-BCPB when you need an 8Gb DDR4 SDRAM with x16 organization and 2133 Mbps speed for cost-sensitive applications. It is ideal for high-performance computing, networking, and embedded systems where 8Gb density is required. If you need higher bandwidth, consider the K4A8G165WB-BCRC (2400 Mbps) or the K4A8G165WC-BCTD (same speed, different die). For lower density requirements, the MT41K256M16TW-107 (4Gb) or IS43TR16256AL-125KBL (4Gb) are pin-compatible alternatives. For automotive applications, use the K4A8G165WB-BIRC with extended temperature range. Always verify pinout and timing parameters before substitution.

Comparison with Alternatives

Parameter This Product K4A8G165WB-BCRC K4A8G165WC-BCTD MT41K256M16TW-107
Package 96-ball FBGA (TFBGA-96) 96-ball FBGA (TFBGA-96) 96-ball FBGA (TFBGA-96) 96-ball FBGA (TFBGA-96)
Brand Samsung Electronics Samsung Electronics Samsung Electronics Micron Technology
Density 8 Gb 8 Gb 8 Gb 4 Gb
Organization 512M x 16 512M x 16 512M x 16 256M x 16
Speed Grade 2133 Mbps 2400 Mbps 2133 Mbps 2133 Mbps
Supply Voltage 1.2 V 1.2 V 1.2 V 1.2 V
Operating Temperature 0°C to 85°C 0°C to 85°C 0°C to 85°C 0°C to 95°C
Pin Compatibility Yes Yes Yes Yes

Key Differentiators

  • Higher density (8Gb) compared to 4Gb alternatives (vs MT41K256M16TW-107)
  • B-die known for low latency and overclocking (vs K4A8G165WC-BCTD)
  • Cost-effective 2133 Mbps speed (vs K4A8G165WB-BCRC)

Design Notes

Ensure a stable 1.2V supply with low ripple. Use 0.1uF and 1uF ceramic capacitors close to each VDD pin to decouple high-frequency noise. The VDDQ supply should be separate and also decoupled. Follow the power distribution network (PDN) guidelines in the datasheet to minimize voltage droop during high-speed switching.

Route DQ, DQS, and address/command signals with matched trace lengths to maintain signal integrity. Use controlled impedance (e.g., 40-50 ohms) for single-ended signals and 80-100 ohms for differential pairs. Keep the trace length difference between DQ and DQS within 0.5mm. Place termination resistors for address/command signals as recommended in the datasheet.

The K4A8G165WB-BCPB operates up to 85°C, but for reliable operation, keep the junction temperature below 95°C. Provide adequate airflow or a heatsink if the device is in a high-power system. The 96-ball FBGA package has a thermal resistance of approximately 20°C/W; calculate the power dissipation based on the operating frequency and load.

Compliance Information

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

RoHS compliant per Samsung datasheet. Not AEC-Q100 qualified; automotive variant K4A8G165WB-BIRC available.

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