19.4A 10.3V 200W 6.67V 6V SOD-123FL ESD and Surge Protection (TVS/ESD) ROHS SMF6.0CA SOD-123FL_L2.8-W1.8-LS3.7-BI LCSC Part Number: C2990473 JLCPCB Part Class: Extended Part Manufactured by Liown(里阳半导体)

DIODE SCHOTTKY 40V SMA(DO-214AC) The SS54 is a surface-mount Schottky barrier rectifier diode commonly used in power management and protection circuits. It is designed for high-speed switching applications and offers low forward voltage drop for improved efficiency in low-voltage systems. The device is widely used in DC-DC converters, reverse polarity protection, freewheeling circuits, and switching power supplies. Key Features Schottky barrier rectifier technology Maximum reverse voltage: 40 V Average forward current: 5 A Low forward voltage drop (typically around 0.55 V) High surge current capability Fast switching speed Surface-mount package (commonly DO-214AB / SMC) Low power loss and high efficiency Suitable for high-frequency applications Guard ring protection for improved reliability RoHS compliant versions available from many manufacturers Typical Applications Switching power supplies DC-DC buck or boost converters Reverse polarity protection Freewheeling / flyback diode applications Battery-powered devices LED drivers Power OR-ing circuits #CommonPartsLibrary #Diode

ESD Protection Devices PESD5V0L1BA SOD-323_L1.7-W1.3-LS2.5-BI LCSC Part Number: C2687118 JLCPCB Part Class: Extended Part Manufactured by UMW(友台半导体)

The 1N4148 SOD-323 is a high-speed switching diode designed for general-purpose signal switching, fast signal processing, and protection applications in compact electronic circuits. Utilizing fast recovery characteristics and low junction capacitance, this diode is widely used in digital circuits, communication equipment, consumer electronics, industrial control systems, and embedded devices. The device is optimized for high-speed switching performance, enabling rapid response to changing signal conditions while maintaining low power consumption. Its compact SOD-323 surface-mount package makes it ideal for space-constrained PCB layouts and high-density electronic assemblies. The 1N4148 SOD-323 is commonly employed for signal routing, logic circuit protection, voltage clamping, waveform shaping, and general-purpose switching functions where fast response and reliable operation are required. Features High-speed switching diode Fast reverse recovery characteristics Low forward voltage drop Low junction capacitance Low leakage current High reliability construction Compact SOD-323 surface-mount package Suitable for high-frequency applications Excellent switching performance RoHS-compliant construction available Compatible with automated assembly processes Wide operating temperature capability Electrical Characteristics Silicon switching diode technology Fast signal switching operation Low capacitance design Low reverse leakage performance High-speed recovery behavior Stable electrical characteristics Optimized for digital and analog signal applications Suitable for low-current switching circuits Applications Signal switching circuits Logic signal routing Communication equipment Embedded systems Consumer electronics Industrial control systems Protection circuits Waveform shaping networks Signal detection circuits High-frequency switching applications Test and measurement equipment General-purpose electronic designs Package Information Package Type: SOD-323 Surface-mount technology Compact PCB footprint Suitable for automated pick-and-place assembly High-density circuit integration capability Optimized for space-constrained applications #commonpartslibrary #semiconductor #diode #switchingdiode #signaldiode #highspeedswitching #circuitprotection #electronics #smd #sod323 #consumerelectronics #industrialelectronics #embeddedsystems #communicationelectronics #analogdesign #digitaldesign #pcbdesign #electroniccomponents

5.8V SMA(DO-214AC) ESD and Surge Protection (TVS/ESD) ROHS SMAJ6.8CA SMB_L4.5-W3.6-LS5.4-BI LCSC Part Number: C2759854 JLCPCB Part Class: Extended Part Manufactured by Leiditech(雷卯电子)

ESD Protection Devices TPD2EUSB30DRTR-TP SOT-723-3_L1.2-W0.8-LS1.20-BR LCSC Part Number: C2844720 JLCPCB Part Class: Extended Part Manufactured by TECH PUBLIC(台舟)

IC SURGE STOPPER 2.7V~23V VQFN-10-HR(2x2) The TPS25947xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges, reverse polarity and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices an excellent choice for power MUX/ORing applications as well as systems which need load side energy hold up storage in case input power supply fails. The devices use linear ORing based scheme to establish an almost zero DC reverse current and emulate ideal diode behavior with minimum forward voltage drop and power dissipation. Output slew rate and inrush current can be adjusted using an external capacitor. Loads are protected from input overvoltage conditions either by clamping the output to a safe fixed maximum voltage (pin selectable), or by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current or breaking the circuit. The output current limit threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor. The devices are available in a 2mm × 2mm, 10- pin HotRod™ QFN package for improved thermal performance and reduced system footprint. The devices are characterized for operation over a junction temperature range from –40°C to +125°C. • Wide operating input voltage range: 2.7V to 23V – 28V absolute maximum – Withstands negative voltages up to –15V • Integrated back-to-back FETs with low onresistance: RON = 28.3mΩ (typical) • Ideal diode operation with true reverse-current blocking • Fast overvoltage protection – Overvoltage clamp (OVC) with pin-selectable threshold (3.8V, 5.7V, 13.8V) and 5μs (typical) response time OR – Adjustable overvoltage lockout (OVLO) with 1.2μs (typical) response time • Overcurrent protection with load current monitor output (ILM) – Active current limit OR circuit-breaker options – Adjustable threshold (ILIM) 0.5A to 6A • ±10% accuracy for ILIM > 1A – Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM – Output load current monitor accuracy: ±6% (IOUT ≥ 1A) • Fast-trip response for short-circuit protection – 500ns (typical) response time – Adjustable (2 × ILIM) and fixed thresholds • Active high enable input with adjustable undervoltage lockout threshold (UVLO) • Adjustable output slew rate control (dVdt) • Overtemperature protection • Digital outputs – Priority power MUX control (AUXOFF) and fault indication (FLT) or – Power Good indication (PG) with adjustable threshold (PGTH) • UL 2367 recognition – File No. E339631 – RILM ≥ 750Ω • IEC 62368-1 CB certified • Small footprint: QFN 2mm × 2mm, 0.45mm pitch #CommonPartsLibrary #IntegratedCircuit #PowerManagement

Two RJ11 component Tip and Ring Flyback protection.

ESD Protection Devices SMS24T1G SC-74-6_L3.0-W1.5-P0.95-LS2.8-BL LCSC Part Number: C327516 JLCPCB Part Class: Extended Part Manufactured by onsemi(安森美)

ESD Protection Devices PESD24VV1BAX SOD-323_L1.8-W1.3-LS2.5-BI LCSC Part Number: C552482 JLCPCB Part Class: Extended Part Manufactured by Nexperia(安世)

ESD Protection Devices SLVU2.8-4N SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL LCSC Part Number: C314268 JLCPCB Part Class: Extended Part Manufactured by BORN(伯恩半导体)

ESD Protection Devices PESDHC2FD4V5BH DFN1006-2L-BI LCSC Part Number: C168625 JLCPCB Part Class: Extended Part Manufactured by Prisemi(芯导)

ESD Protection Devices BESDU0603-14 D0603-BI LCSC Part Number: C316058 JLCPCB Part Class: Extended Part Manufactured by BORN(伯恩半导体)

JST SM04B-SRSS-TB(LF)(SN) is a 4-position, 1.0 mm pitch, right-angle surface-mount JST SH PCB connector commonly used for STEMMA QT and Qwiic I²C connections. Keywords: SM04B-SRSS-TB, JST SH, 4-pin connector, 1.0mm pitch, STEMMA QT Qwiic The SM04B-SRSS-TB (LF)(SN) is a JST SH/SR series 4-position wire-to-board connector header designed for compact, high-density PCB applications. It features a 1.0 mm pitch, right-angle surface-mount (SMT) design, and a shrouded housing for secure mating and alignment. This connector is commonly used in space-constrained electronic devices where reliable signal transmission and low-profile mounting are required, such as in consumer electronics, industrial control boards, and embedded systems. It mates with compatible JST SH series housings, providing a secure push-fit connection for crimped wire assemblies. Key Features 4-position (1x4) wire-to-board connector header 1.0 mm fine pitch for compact PCB layouts Surface-mount (SMT), right-angle configuration Shrouded design for improved alignment and protection Rated current: 1 A per contact Rated voltage: 50 V AC/DC Low-profile height (~2.9 mm) Tin-plated contacts for reliable conductivity Operating temperature: -25°C to +85°C Compatible with JST SH/SR series mating housings Tape-and-reel packaging for automated PCB assembly #CommonPartsLibrary #Connector #JST #SM04BSRSSTB #SHSeries #SRSeries #WireToBoard #1mmPitch #SMTConnector #PCBConnector #ElectronicsComponents #ConnectorHeader

ESD Protection Devices PESDNC5D7VU SOD-523F_L1.2-W0.8-LS1.7-RD LCSC Part Number: C110699 JLCPCB Part Class: Extended Part Manufactured by Prisemi(芯导)