In June 2025, a number of semiconductor components—especially DDR4 DRAM and industrial-grade power and driver ICs—saw increased demand and pricing pressure. Many of these parts are either approaching end-of-life (EOL) or already discontinued, driving buyer urgency and market speculation.

Here’s a summary of 7 key trending models based on inquiry volume and pricing movements. (For reference only – not a trading recommendation.)

1. Micron DDR4 SDRAM (Soon to be EOL)

Model: MT40A512M16TB-062E:R
Price Trend: From ~$1.65 → ~$3.30 USD (approx. 50% increase)

This 8Gb (512Mx16) DDR4 SDRAM from Micron is widely used in high-performance computing, servers, consumer electronics, and networking devices. Pricing surged in June following EOL notifications sent by Micron to customers. Another model, MT40A512M16LY-075:E, also saw prices jump from ~$2.05 to ~$3.00 USD.

Micron is expected to ramp down DDR4/LPDDR4 shipments in the next 2–3 quarters, shifting focus to long-term customers in automotive, industrial, and networking sectors.

2. TDK-Lambda DC-DC Converter (Discontinued but in Demand)

Model: PH100F24-24
Price Trend: From ~$40 → $700–1,400+ USD

Though officially discontinued since 2017, this 100W, 24V DC-DC converter has seen a surprising resurgence. Prices skyrocketed from a few hundred RMB earlier this year to over $1,000 USD per unit in June.

The demand spike appears to stem from sudden international orders and social media reports of rare module requirements. Other discontinued TDK modules like SPH05-30RW and EMC filters like RTMN-5060 have also seen renewed interest.

3. Samsung DDR4 SDRAM (Soon to be EOL)

Model: K4A8G165WC-BCTD
Price Trend: From ~$3.50 → ~$7.60 USD

This 8Gb DDR4 SDRAM from Samsung, used in servers and AI/networking applications, saw a sharp price increase in June. Like Micron, Samsung is rumored to be scaling down DDR4 production, leading to increased spot demand and limited supply.

4. TI Three-Phase Motor Driver (Discontinued)

Model: DRV8332DKDR
Price Trend: From ~$6.00 → $15–100+ USD

The DRV8332DKDR is a high-performance 3-phase PWM motor driver IC, now discontinued. Recently, it has seen increased market attention, especially for use in drone motors, robotics, and integrated inverter systems. Sellers report price volatility ranging from $15 to $100+ depending on lot size and availability.

5. TI RS-485 Transceiver (Hot Industrial Item)

Model: SN65LBC184DR
Price Trend: From ~$0.30 → ~$0.70–1.40 USD

A long-time favorite in industrial networking and metering, this RS-485/RS-422 transceiver continues to gain momentum. Pricing is gradually rising amid increased demand in motor control and utility infrastructure applications.

6. Intel (Altera) Entry-Level FPGA

Model: EP1C6Q240C8N
Price Trend: ~$9.70–11.00 USD (Stable)

This low-cost Cyclone I FPGA remains in high demand for industrial, educational, and consumer embedded projects. Though officially EOL, its low-power and affordable logic capacity make it a go-to part for many entry-level designs.

7. STMicroelectronics General-Purpose MCU

Model: STM32F103C8T6
Price Trend: Returning to ~$0.55 USD

A popular ARM Cortex-M3 based MCU, widely used in DIY, consumer electronics, and industrial control. After earlier price hikes during the chip shortage, it has now returned to normal levels, reflecting stabilized supply.

Conclusion:

While some parts like STM32F103C8T6 have cooled off, others—especially DDR4 DRAM and older TI drivers—are seeing renewed market heat due to supply-side changes and obsolescence concerns. For buyers and designers, now is the time to review inventories, seek alternatives, or lock in critical components before further volatility.