1. Model Breakdown Explanation TJA1050: Base model number, classic high-speed CAN bus transceiver (NXP original) T: Package identifier = SOT23-8 SMD small-signal package CM: Version/process grade, industrial standard universal edition 118: Suffix batch code, indicating reel packaging specification (7-inch reel, most common batch for e-commerce/stock) 2. Core Function Positioning Automotive-grade CAN transceiver for CAN 2.0A/B bus, compatible with MCU CAN controllers, enabling differential CAN bus level conversion: Logic side: 3.3V/5V MCU compatible Bus side: Differential CANH/CANL bus signals Transmission rate: Up to 1 Mbps 3. Key Electrical Parameters Table Parameter | Specification Supply voltage (Vcc) | 4.5V ~ 5.5V (used with LDO step-down in 12V automotive systems) Standby current | Ultra-low static power consumption, power-saving in sleep mode Protection features | Bus short-circuit protection, thermal shutdown, automotive-grade ESD protection Operating modes | Normal transceiver mode / silent mode (receive-only) 4. Package & Packaging Package: SOT-23-8 Marking: Simplified marking on chip body, labeled "TJA1050" Packaging (suffix 118): 7-inch reel, standard tape-and-reel, ~3000pcs per reel 5. Typical Applications Automotive electronics: Dashboards, body controllers, BMS battery management, vehicle infotainment Industrial control: PLCs, servo motors, industrial sensor CAN bus communication New energy equipment: Energy storage systems, charging pile internal CAN communication Industrial control dev boards, CAN analyzers, USB-CAN adapter core chips 6. Same-Series Alternative Models TJA1050T/CM: Universal standard edition (this model) TJA1050AT/CM: Enhanced ESD version, stronger noise immunity TJA1040: Low-speed fault-tolerant CAN, max 125kbps, not directly replaceable