KLMCG4JETD-B041 — Samsung 64 GB eMMC 5.1 Embedded Storage (153FBGA)
One-line takeaway: KLMCG4JETD-B041 is a 64 GB eMMC 5.1 embedded storage (managed NAND) from Samsung, in a 153-ball FBGA (11.5x13 mm) package with a built-in MMC controller, supporting HS400 (up to 200 MHz), Command Queuing and Enhanced Strobe, industrial temperature -25 to +85 C. Intek Technology holds 490 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 (Anhui Anmei Semiconductor) and also supplies GigaDevice GD32 MCU, CR Micro power devices, Magnachip, HOPERF digital isolators, and distributes Samsung and other memory brands for customer BOMs.
Parameters on this page are taken from Samsung public naming rules and the daily-updated HQEW inventory; exact capacity, speed and voltage follow the original datasheet.
1. What this part is
KLMCG4JETD-B041 belongs to the Samsung eMMC 5.1 family (KLM = eMMC, C = 5.1 interface generation, G4 = 64 GB class, JETD-B041 = version suffix). It is a managed NAND - NAND flash plus the MMC controller in one package, presenting a standard eMMC 5.1 interface to the host.
| Segment | Meaning |
|---|---|
| KLM | Samsung eMMC (embedded Multi-Media Controller) |
| C | eMMC 5.1 interface generation |
| G4 | 64 GB class (exact density per datasheet) |
| JETD-B041 | Version / package suffix |
The built-in controller handles ECC, wear-leveling, bad-block management and garbage collection, transparent to the host. The main controller no longer needs a NAND-management algorithm - it just reads and writes a block device through standard eMMC commands, which lowers development effort and failure risk versus raw NAND.
2. Key parameters
| Parameter | Value | Note |
|---|---|---|
| Capacity | 64 GB class | Usable capacity per datasheet |
| Interface | eMMC 5.1 | HS400 mode, up to 200 MHz |
| Package | 153-ball FBGA | 11.5 x 13 mm |
| Advanced | Command Queuing, Enhanced Strobe | Better random I/O and signal integrity |
| Operating temp | -25 to +85 C | Industrial |
| Management | Built-in controller (ECC / wear-leveling / bad-block) | Transparent to host |
Waveform / electrical note: capacity class, interface and package above follow Samsung public naming rules. For exact read/write speed, operating voltage and timing, request the original datasheet from Intek - this page does not invent electrical numbers.
3. Typical applications
eMMC moves NAND management into the device so the host only runs its own logic. For Intek customers:
- Energy storage / BMS controllers: firmware storage, run logs, fault black-box data
- Industrial gateways and edge devices: OS image and configuration persistence
- Automotive and industrial terminals: reliability-sensitive designs that do not want the host to carry NAND bad-block management
Versus raw NAND, eMMC simplifies the BSP and improves production consistency; versus UFS, eMMC 5.1 is lower cost and more mature, making it the default on-board storage for most industrial controllers.
4. Selection and substitution
| Item | Content |
|---|---|
| Brand | Samsung |
| Package / packing | 153-ball FBGA / reel or tray per original |
| Supply mode | Samples, low volume (broken reel), volume |
| Price | Tiered by quantity, Tel / WeChat 136-3264-8484 |
| Quantity in stock | 490 pcs (count 2026-10-27) |
Cross-brand substitution is not capacity-only: even at the same capacity, eMMC from different vendors can differ in pinout, Command Queuing support, Enhanced Strobe support and voltage window. Verify every item against the datasheet and validate by actual boot / read-write testing. Within the KLMCG4 family, different suffixes (such as KLMCG4JEUD-B04Q058) differ mainly in version and lot - select by the full part number.
5. FAQ
Q1. What is KLMCG4JETD-B041 and what are its key parameters?
Samsung KLMCG4JETD-B041 is a 64 GB eMMC 5.1 embedded storage (managed NAND). 153-ball FBGA package (11.5x13 mm), built-in MMC controller with ECC, wear-leveling and bad-block management transparent to the host, supports HS400 (up to 200 MHz), Command Queuing and Enhanced Strobe, industrial temperature -25 to +85 C. It fits embedded hosts that want to offload NAND management.
Q2. Is KLMCG4JETD-B041 in stock and can I buy small volumes?
Yes. Intek Technology holds 490 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. Where is KLMCG4JETD-B041 typically used?
It targets embedded and industrial equipment that need on-board bulk storage: firmware and black-box logging on energy-storage / BMS controllers, industrial gateways and edge devices, and automotive / industrial terminals. Compared with raw NAND, eMMC hands bad-block management and ECC to the internal controller, so host software is simpler and more reliable.
Q4. Can eMMC directly replace raw NAND or UFS?
No. eMMC is managed NAND with a built-in controller and an eMMC 5.1 interface (parallel 8-bit MMC). It is not compatible at the hardware or software level with raw NAND (host-managed ECC / bad blocks) or UFS (serial differential, different protocol). Confirm the host has an eMMC 5.1 controller first; for cross-brand same-capacity eMMC, check pinout, timing and command-queue support against the datasheet.
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 was founded in 2020 and is an authorized distributor of AMSEMI (Anhui Anmei Semiconductor) (certificate verifiable), 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 full-reel quotes of KLMCG4JETD-B041, 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.