Samsung Electronics

K4A8G045WB-BCRC - 8Gb DDR4 SDRAM 2Gx4 2400Mbps | Samsung

Name: K4A8G045WB-BCRC
Brand: Samsung Electronics
Price: 12.50 USD
Availability: InStock

MPN: K4A8G045WB-BCRC ✓ Active

In Stock (99,999) Ships in 1-3 business days

1.2 V Vdss 211.7 mA Id 78-FBGA Package 2400 Mbps Speed

$12.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$12.5	$12.50
10	$11.2	$112.00
100	$9.8	$980.00
500	$8.9	$4,450.00
1,000	$8.1	$8,100.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for K4A8G045WB-BCRC — 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:

K4A8G045WB-BCPB

✅ Drop-In

📦 78-FBGA

Same 8Gb 2Gx4 DDR4, same package, likely same speed grade

📋 Reference alternative (not in catalog)

K4A8G085WB-BCRC

✅ Drop-In

📦 78-FBGA

Same 8Gb density but 1Gx8 organization, same package

📋 Reference alternative (not in catalog)

MT41K256M16HA-125:E

✅ Drop-In

Micron Technology

📦 78-FBGA

DDR3L SDRAM · 4 Gbit · 256M x 16 · 800 MHz · 13.75 ns · 1.35 V (DDR3L) · 1.35 V · 96-FBGA (9x14 mm)

✓ 99,999 In Stock

$3.1 / Unit

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IS43TR16256AL-125KBL

✅ Drop-In

ISSI, Integrated Silicon Solution Inc

📦 78-FBGA

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

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NT5CC256M16CP-DIB

✅ Drop-In

Nanya Technology

📦 78-FBGA

DDR3L SDRAM · 4Gb · 256M x 16 · 1.35V · 1600 Mbps (DDR3L-1600) · TFBGA-96 (9x13mm, 0.8mm pitch) · 96 · 8

✓ 99,999 In Stock

$6.5 / Unit

View Datasheet →

K4A8G045WB-BCRC Maximum Ratings & Electrical Characteristics

Density	8 Gb
Organization	2G x 4
Speed Grade	2400 Mbps
Supply Voltage	1.2 V
Package	78-FBGA
Operating Temperature	0°C to 85°C
DRAM Type	DDR4 SDRAM
Refresh Cycles	8192
Max Supply Current	211.7 mA
Terminals	78
Package Shape	RECTANGULAR
RoHS	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.32.00.36

K4A8G045WB-BCRC Pin Configuration

Pin A1	VDD — Power supply
Pin A2	VSS — Ground
Pin B1	DQ0 — Data input/output 0
Pin B2	DQ1 — Data input/output 1
Pin C1	DQ2 — Data input/output 2
Pin C2	DQ3 — Data input/output 3
Pin D1	VDDQ — Data power supply
Pin D2	VSSQ — Data ground
Pin E1	A0 — Address input 0
Pin E2	A1 — Address input 1
Pin F1	A2 — Address input 2
Pin F2	A3 — Address input 3
Pin G1	BA0 — Bank address 0
Pin G2	BA1 — Bank address 1
Pin H1	RAS_n — Row address strobe
Pin H2	CAS_n — Column address strobe
Pin J1	WE_n — Write enable
Pin J2	CS_n — Chip select
Pin K1	CK — Clock
Pin K2	CK_n — Complementary clock

Safe Operating Area (SOA) & Thermal Characteristics

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

K4A8G045WB-BCRC is suitable for 6 applications: Server Memory Modules, Desktop PC Memory, Networking Equipment, Embedded Systems, Data Center Storage, Telecommunications.

🖥️

Server Memory Modules

The K4A8G045WB-BCRC's 8Gb density and 2400 Mbps speed make it ideal for server DIMMs, providing high capacity and bandwidth for data center workloads. Its 1.2V operation reduces power consumption, crucial for large-scale deployments. When used in RDIMMs or LRDIMMs, it enables reliable performance under heavy load. The 78-FBGA package ensures compatibility with standard PCB layouts, and the B-die process delivers consistent timing for stability.

Recommended

MT41K256M16HA-125:E · Micron Technology IS43TR16256AL-125KBL · ISSI, Integrated Silicon Solution Inc

🖥️

Desktop PC Memory

For desktop PCs, the K4A8G045WB-BCRC provides high-speed DDR4 memory for gaming and productivity. Its 2400 Mbps speed ensures fast data access, while the 8Gb density allows for large memory configurations. The 1.2V supply helps keep system temperatures lower. The 78-FBGA package is standard for DIMMs, ensuring easy integration. This component supports dual-channel configurations, enhancing overall system performance.

Recommended

K4A8G085WB-BCRC (Alternative DDR4 component for desktop memory)

🌐

Networking Equipment

In networking equipment like routers and switches, the K4A8G045WB-BCRC offers high-density memory for packet buffering and routing tables. Its 2400 Mbps speed handles high-throughput data streams, while the 8Gb capacity supports large forwarding databases. The 1.2V operation is efficient for power-constrained environments. The 78-FBGA package fits compact PCB designs, and the B-die process ensures reliable operation under continuous load.

Recommended

MT41K256M16HA-125:E · Micron Technology

🔧

Embedded Systems

The K4A8G045WB-BCRC is suitable for embedded systems requiring high-capacity memory, such as industrial controllers and medical devices. Its 8Gb density provides ample storage for complex applications, while the 2400 Mbps speed ensures responsive performance. The 1.2V supply is compatible with low-power designs. The 78-FBGA package is ideal for space-constrained boards, and the commercial temperature range (0-85°C) covers most embedded environments.

Recommended

IS43TR16256AL-125KBL · ISSI, Integrated Silicon Solution Inc

🖥️

Data Center Storage

In data center storage systems, the K4A8G045WB-BCRC provides high-speed memory for caching and metadata management. Its 8Gb density supports large cache pools, while the 2400 Mbps speed accelerates data access. The 1.2V operation reduces power costs in large-scale deployments. The 78-FBGA package ensures compatibility with standard storage controllers, and the B-die process delivers low latency for high-performance storage.

Recommended

NT5CC256M16CP-DIB · Nanya Technology

🌐

Telecommunications

For telecommunications infrastructure, the K4A8G045WB-BCRC offers reliable high-density memory for base stations and switches. Its 2400 Mbps speed handles high-bandwidth signaling, while the 8Gb capacity supports large call routing tables. The 1.2V supply is efficient for remote installations. The 78-FBGA package is robust for harsh environments, and the commercial temperature range is suitable for most telecom equipment.

Recommended

MT41K256M16HA-125:E · Micron Technology

Recommended Products Summary

MT41K256M16HA-125:E Micron Technology Used in: Server Memory Modules, Networking Equipment, Telecommunications IS43TR16256AL-125KBL ISSI, Integrated Silicon Solution Inc Used in: Server Memory Modules, Embedded Systems K4A8G085WB-BCRC Alternative DDR4 component for desktop memory Used in: Desktop PC Memory NT5CC256M16CP-DIB Nanya Technology Used in: Data Center Storage

What is the density and organization of K4A8G045WB-BCRC?

The K4A8G045WB-BCRC is an 8Gb DDR4 SDRAM organized as 2G x 4. According to the Samsung datasheet, this configuration provides a total density of 8 gigabits with a 4-bit data bus, suitable for high-capacity memory modules.

What is the operating voltage of K4A8G045WB-BCRC?

The K4A8G045WB-BCRC operates at a supply voltage of 1.2V, which is standard for DDR4 SDRAM. This lower voltage compared to DDR3 (1.5V) contributes to reduced power consumption and heat generation.

What is the speed grade of K4A8G045WB-BCRC?

The K4A8G045WB-BCRC has a speed grade of 2400 Mbps, meaning it can transfer data at a rate of 2400 megabits per second. This is a common speed for DDR4 memory, balancing performance and power efficiency.

What package does K4A8G045WB-BCRC come in?

The K4A8G045WB-BCRC comes in a 78-ball FBGA (Fine-Pitch Ball Grid Array) package. This package type is standard for DDR4 SDRAM, offering a compact footprint and good thermal performance.

What is the operating temperature range of K4A8G045WB-BCRC?

The K4A8G045WB-BCRC operates over a temperature range of 0°C to 85°C. This commercial temperature range makes it suitable for typical computing and networking applications.

Is K4A8G045WB-BCRC RoHS compliant?

Yes, the K4A8G045WB-BCRC is RoHS compliant, as indicated in the datasheet and distributor listings. This ensures it meets environmental standards for hazardous substances.

Where can I buy K4A8G045WB-BCRC?

K4A8G045WB-BCRC is available from authorized distributors such as DigiKey, Mouser, and Octopart. As of 2026-08-18, it is in stock at several distributors, with pricing starting around $12.50 for single units.

What is the price of K4A8G045WB-BCRC?

As of 2026-08-18, the price for K4A8G045WB-BCRC is approximately $12.50 for a single unit, decreasing to around $8.10 for quantities of 1000 or more. Prices vary by distributor and quantity.

What is the lead time for K4A8G045WB-BCRC?

The lead time for K4A8G045WB-BCRC is typically 2-4 weeks from major distributors, depending on stock availability. As of 2026-08-18, many distributors show it in stock, so immediate shipment is possible.

Is K4A8G045WB-BCRC in stock?

Yes, as of 2026-08-18, K4A8G045WB-BCRC is in stock at several distributors including DigiKey, Mouser, and Octopart. Check current availability on their websites for real-time stock levels.

K4A8G045WB-BCRC vs K4A8G085WB-BCRC - which is better?

The K4A8G045WB-BCRC is organized as 2Gx4, while the K4A8G085WB-BCRC is organized as 1Gx8. The 2Gx4 configuration offers higher density per chip, making it suitable for applications requiring more memory per device, while the 1Gx8 provides a wider data bus. The choice depends on your system's memory architecture.

What is the difference between K4A8G045WB-BCRC and K4A8G045WB-BCPB?

The K4A8G045WB-BCRC and K4A8G045WB-BCPB are both 8Gb DDR4 SDRAM with the same density and organization. The difference lies in the speed grade and timing parameters. The BCRC variant is rated for 2400 Mbps, while the BCPB variant may have different speed or temperature ratings. Refer to the datasheet for specific differences.

When should I choose K4A8G045WB-BCRC over K4A8G085WB-BCRC?

Choose K4A8G045WB-BCRC when you need a 2Gx4 organization, which is ideal for high-density memory modules where each chip provides more capacity. Choose K4A8G085WB-BCRC if you require a 1Gx8 organization for wider data bus applications. The 2Gx4 is better for maximizing memory capacity per module.

What is the best drop-in replacement for K4A8G045WB-BCRC?

The best drop-in replacement for K4A8G045WB-BCRC is the K4A8G045WB-BCPB, which shares the same 8Gb density, 2Gx4 organization, and 78-FBGA package. It is pin-compatible and offers similar performance, making it a direct substitute.

Where can I download the K4A8G045WB-BCRC datasheet PDF?

The K4A8G045WB-BCRC datasheet PDF can be downloaded from the Samsung Semiconductor website at https://www.semiconductorsamsung.com/datasheet/semiconductorsamsung/K4A8G045WB-BCPB.pdf. It is also available on Alldatasheet and other datasheet aggregator sites.

Engineering reference data for K4A8G045WB-BCRC — comparison, design guidance, and compliance information.

Selection Guide

Choose K4A8G045WB-BCRC when you need high-density 8Gb DDR4 memory with a 2Gx4 organization, ideal for server and data center applications where capacity is critical. If you require a wider data bus (1Gx8), consider the K4A8G085WB-BCRC. For lower-density applications (4Gb), alternatives like MT41K256M16HA-125:E or IS43TR16256AL-125KBL may be more cost-effective. The K4A8G045WB-BCRC offers the best balance of density and speed for high-performance computing, while cross-brand alternatives provide supply chain flexibility but may require validation for timing and signal integrity.

Comparison with Alternatives

Parameter	This Product	K4A8G045WB-BCPB	K4A8G085WB-BCRC	MT41K256M16HA-125:E	IS43TR16256AL-125KBL	NT5CC256M16CP-DIB
Package	78-FBGA	78-FBGA	78-FBGA	78-FBGA	78-FBGA	78-FBGA
Brand	Samsung Electronics	Samsung Electronics	Samsung Electronics	Micron Technology	ISSI	Nanya Technology
Density	8 Gb	8 Gb	8 Gb	4 Gb	4 Gb	4 Gb
Organization	2G x 4	2G x 4	1G x 8	256M x 16	256M x 16	256M x 16
Speed Grade	2400 Mbps	2400 Mbps	2400 Mbps	1600 Mbps	1600 Mbps	1600 Mbps
Supply Voltage	1.2 V	1.2 V	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	0°C to 95°C	0°C to 95°C
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Key Differentiators

Higher density per chip (vs MT41K256M16HA-125:E)
Faster speed grade (vs IS43TR16256AL-125KBL)
Same-brand compatibility (vs NT5CC256M16CP-DIB)

Design Notes

Ensure proper decoupling capacitors (0.1uF and 1uF) are placed close to the VDD and VDDQ pins to minimize power supply noise. Follow the DDR4 layout guidelines for signal integrity, including controlled impedance traces (typically 40-60 ohms) and matched trace lengths for DQ, DQS, and address/command signals.

The K4A8G045WB-BCRC has a maximum supply current of 211.7 mA. At 1.2V, this results in a maximum power dissipation of approximately 254 mW. Ensure adequate airflow or a thermal pad is provided to keep the junction temperature within the specified 0-85°C range.

For high-speed DDR4 operation at 2400 Mbps, use proper termination (ODT) settings and ensure the memory controller is configured correctly. Avoid long stubs on the data lines and use daisy-chain or fly-by topology for address/command signals to reduce reflections.