CH340G

CH341A is a WCH USB bus adapter chip — USB 2.0 full-speed device bridging to UART (up to 2 Mbps), I2C, SPI and GPIO, 5 V and 3.3 V supply, SOP-28 package (external crystal required). The multi-protocol bridge is the selection point: one chip turns a USB port into a UART/I2C/SPI programmer and debugger interface — the heart of countless USB-to-serial cables and EEPROM programmers. Selection advice: WCH documents the CH341A as a variant of the CH341 family — match the full CH341A code, since the CH341B and other variants differ in package and pinout. For UART-only use the CH340 series is cheaper; choose the CH341A when you need I2C/SPI bridging too. Note the external crystal requirement in the BOM — the SOP-28 footprint plus crystal is the complete circuit. Evidence: WCH official data confirms USB 2.0 full-speed, UART/I2C/SPI/GPIO, SOP-28, external crystal. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

CH32V003F4P6 is a 32-bit RISC-V MCU from WCH — 48 MHz, 16 KB Flash, 2 KB SRAM, 10-bit ADC, in a 20-pin TSSOP package. The RISC-V open architecture at an 8-bit price point is the selection point: 32-bit performance for the cost of a legacy 8-bit MCU, which is why the CH32V003 became the default for cost-driven control tasks. Selection advice: the F4P6 suffix denotes this Flash size and the TSSOP-20 package — match the full code to your layout. The RISC-V toolchain differs from ARM: confirm your development environment supports the WCH RISC-V core before committing. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

CH32V208WBU6 is a WCH QingKe V4C RISC-V microcontroller at 144 MHz with Bluetooth 5.3 — for cost-driven wireless designs that need BLE plus wired connectivity on one die: 128 KB flash, 64 KB SRAM, 10M Ethernet MAC+PHY, USB full-speed, CAN, and 16-channel 12-bit ADC in 68-pin QFN. The wireless-type CH32V208 pairs BLE 5.3 (2 Mbps) with industrial peripherals — touch keys, op-amp comparators and motor timers — at a price point Western BLE MCUs cannot touch. Selection advice: the WBU6 code is the 68-pin QFN industrial grade — for 64-pin LQFP the RBT6 is the alternative; the V4C core adds memory protection over the V4B — confirm the BLE stack version against your phone-compatibility matrix. As a domestic Chinese MCU, supply is decoupled from Western allocation cycles — a sourcing hedge worth pricing. Parameters verified against WCH documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

CH32V307VCT6 is a RISC-V microcontroller from WCH in a 100-pin LQFP package — the high-end of the CH32V line for I/O-heavy embedded control. The 100-pin RISC-V option is the selection point: maximum peripherals and pins on the open RISC-V architecture, for designs that want ARM-class I/O without ARM licensing cost in the BOM. Selection advice: the VCT6 suffix denotes this density and the LQFP-100 package — match the full code. Confirm your toolchain supports the WCH RISC-V core and verify peripheral requirements against the datasheet. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

HX711 is a 24-bit analog-to-digital converter from Avia Semiconductor in SOP-16 — for weigh scales and industrial control: load-cell interfaces, kitchen scales and force gauges. The on-chip low-noise programmable gain amplifier (32/64/128) is the selection point: direct load-cell connection with no external instrumentation amplifier. Selection advice: the 24-bit resolution serves weigh-scale precision — pair with a stable bridge excitation and average readings in firmware for the best noise performance; for general analog inputs, a standard SAR ADC is simpler. Parameters verified against the manufacturer datasheet. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

ULN2003ANSR is a Texas Instruments seven-channel Darlington transistor array in SOP-16, large tape and reel — for driving relays, solenoids and low-side loads from logic outputs. Seven integrated Darlington pairs with freewheeling diodes is the selection point: one chip replaces seven transistor-plus-diode circuits. Selection advice: the ANSR suffix denotes SOP-16 in large tape and reel — the standard SMT production variant, a balance between the compact SOT-23 DYYR and the hand-solderable PDIP AN. Each channel sinks up to 500 mA; watch total package dissipation with multiple channels on. Parameters verified against the TI official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

1ED020I12-F2 is an Infineon EiceDRIVER single-channel high-side IGBT gate driver in PG-DSO-16, tape and reel — 1200 V voltage class, ±2 A rail-to-rail output, coreless-transformer galvanic isolation, desaturation/short-circuit protection, active Miller clamp, active shutdown, UVLO on both supplies, 170 ns turn-on / 165 ns turn-off propagation delay, industrial qualified. The DESAT plus active Miller clamp combination is the selection point: a shorted IGBT is detected and shut down in hardware before the die fails, and the clamp holds the gate off against parasitic turn-on — a plain optocoupler gate drive provides neither. Selection advice: the full orderable code is 1ED020I12F2XUMA1 where XUMA1 denotes tape and reel (1,000 per reel); the 1ED020I12-B2 is the isolated variant in the same family and the 2ED020I12-F2 the dual-channel high-side version. Infineon lists this part Active, DigiKey lists the full code as in stock, and Infineon community support names it the recommended replacement for the discontinued 1ED020I12-FA. Evidence: the Infineon official datasheet Rev. 2.1 and product page confirm the ordering code, 1200 V class, ±2 A output, DSO-16 package and Active status. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

1EDN7511B is an Infineon EiceDRIVER single-channel low-side gate driver in PG-SOT23-6, tape and reel — for driving power MOSFETs from logic in compact SMPS stages. 4 A source / 8 A sink with 3.9 V UVLO is the selection point: asymmetric drive with logic-compatible turn-on threshold. Selection advice: the B suffix denotes the SOT-23-6 package — for the higher-UVLO variant suited to noisy rails, the 1EDN8511B is the sibling; the 4.2 V to 20 V range suits both 5 V and 12 V drive rails. Infineon lists this part as Active and preferred. Parameters verified against the Infineon official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

1EDN8511B is an Infineon EiceDRIVER single-channel low-side gate driver in PG-SOT23-6, tape and reel — for driving power MOSFETs from logic in compact SMPS stages. 4 A source / 8 A sink with 7 V UVLO is the selection point: asymmetric drive with a higher turn-on threshold for noisy gate-drive rails. Selection advice: the B suffix denotes the SOT-23-6 package; the 8 V to 20 V range versus the 4.2 V to 20 V of the 1EDN7511B — pick this variant where a higher UVLO better rejects supply noise. Infineon lists this part as Active and preferred. Parameters verified against the Infineon official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

23LC1024-I/P is a Microchip 1-Mbit SPI serial SRAM in 8-pin PDIP — for fast scratchpad memory: data buffering, display framebuffers and audio delay lines. Unlimited read/write endurance at up to 20 MHz SPI is the selection point: RAM speed with none of EEPROM's write-cycle limits. Selection advice: the I/P denotes PDIP-8 — the breadboard-friendly variant; for SMT, the SOIC variant is the pick. Volatile — for non-volatile needs, the 24LC EEPROM series is the sibling; for more speed, the SQI mode doubles throughput. Microchip lists this part as In Production. Parameters verified against the Microchip official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

CH340G is listed on the FT232RL alternatives page as a functional candidate (registry model CH340G). Review that page’s checklist before substituting.

CH340G is listed on the CP2102 alternatives page as a functional candidate (registry model CH340G). Review that page’s checklist before substituting.