2N7002 Gate Drive at 3.3 V: Threshold Spread and RDS(on)
The 2N7002 is called logic-level, but at 3.3 V it is a 20 mA switch: threshold spread eats the margin and RDS(on) roughly doubles. Here is...
Read articleM393A4G40AB3-CWE - Samsung Memory Module
Request a Quote
M393A4G40AB3-CWE is a memory module from Samsung.
| Manufacturer | Samsung |
|---|---|
| Manufacturer Part Number | M393A4G40AB3-CWE |
| Product Type | Memory Module |
| Package | RDIMM-288 |
Request a Quote for current pricing, order quantity, packaging, date code and delivery. Supplier availability will be confirmed with your quotation.
MANUFACTURER ACCESS
Manufacturers We Source
Browse frequently requested semiconductor and electronic component manufacturers, then search the catalog or submit an RFQ for the exact part you need.
From the desk
Recent Articles
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
CH340 USB-UART Guide: Pinout, Clocks and Logic Levels
Compare CH340G and CH340C, wire V3 correctly, check UART voltage compatibility and separate USB enumeration faults from serial framing problems.
Read article
TVS and ESD Diode Selection: Standoff, Clamp, Speed
How to pick a TVS or ESD diode: match standoff to the rail, clamp to the pin absolute maximum, and capacitance to the interface speed.
Read article
SN74HC74 Guide: Pinout, Truth Table and Alternatives
Check SN74HC74 pinout, asynchronous preset and clear, guaranteed clock timing and HC/HCT input levels before qualifying a substitute or changing the footprint.
Read article
MAX485 RS-485 Guide: Pinout, Termination and Biasing
A practical MAX485 selection guide covering SOIC/DIP pinout, MCU logic levels, common-mode limits, termination, idle-bus biasing and half-duplex direction control.
Read article
TP4056 Thermal Budget and Charge-Current Setting
One resistor sets the current, but input voltage and copper decide the temperature. The arithmetic, the derating table, and why 1 A often becomes 0.5 A.
Read article
74HC vs 74HCT: Choosing Logic for 3.3 V to 5 V Signals
Compare 74HC and 74HCT input thresholds, calculate noise margins, and check enable pins, power sequencing and exact ordering codes before approving a substitute.
Read article
74HC595 Guide: Pinout, Cascading and Startup Control
A practical 74HC595 guide covering the 16-pin pinout, shift and latch clocks, daisy-chain byte order, HC versus HCT input levels, controlled startup and replacement checks.
Read article