TJA1051AT/0Z - 5Mbps CAN Transceiver | NXP | Automotive
MPN： TJA1051AT/0Z ✓ 啟用中TJA1051AT/0Z 概覽
A CAN transceiver is an interface IC that converts logic-level TXD and RXD signals between a host controller and the physical CANH and CANL bus conductors. Within the product hierarchy, the TJA1051 belongs to CAN interface ICs, communication interface ICs, and broader semiconductor categories. Its primary function is to provide the physical-layer signaling and bus-driver capability required by a CAN controller.
The verified data identifies a maximum signaling rate of 5 Mb/s, one driver, one receiver, a 5 V supply, Normal/Silent mode support, SMD mounting, and an SOIC-8 package. These characteristics suit conventional high-speed CAN networks operating at bit rates up to 5 Mb/s. The small surface-mount package supports compact automotive electronics, industrial controllers, vehicle networking modules, and embedded CAN gateways.
Compared with a plain CAN transceiver, the TJA1051 family offers selectable operating behavior through Normal and Silent modes. Normal mode provides the normal CAN communication function, while Silent mode is intended for passive bus monitoring without active bus domination. Engineers must still verify the exact mode-control implementation and pin behavior against the manufacturer datasheet before changing an existing PCB.
The 8-pin SOIC package permits reflow assembly and automated inspection, but its exposed lead geometry requires careful solder bridging control. CAN bus nodes should use a symmetric connection to CANH and CANL, a common-mode choke where required, and a termination network matched to the network topology. The transceiver itself does not replace termination resistors, common-mode filtering, or protection components.
This product page combines the verified NXP description and distributor listings with practical selection guidance, comparison information, and design notes. Pricing shown is the verified LCSC starting price of $2.1437 as of 2026-10-29; higher-volume pricing was not supplied. Availability and lead time must be confirmed with the selected authorized distributor before procurement.
直接替換替代品，適用於 TJA1051AT/0Z — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TJA1051AT/0Z （相同外形與佔位） — 差異在於 RoHS Status, Mounting Type, Package, Automotive Qualification, Operating Modes.
TJA1051T/1J
✅ 直接替換聯絡詢價
查看資料表 →TJA1051TK/3/1J
✅ 直接替換📋 參考替代品（不在目錄中）
NCV7342
✅ 直接替換📋 參考替代品（不在目錄中）
TLE9251V
✅ 直接替換📋 參考替代品（不在目錄中）
TCAN1042VDRQ1
✅ 直接替換聯絡詢價
查看資料表 →TJA1051AT/0Z 規格
| Product Type | 1/1 CAN transceiver |
| CAN Signaling Rate | 5 Mb/s |
| 供應電壓 | 5 V |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Operating Modes | Normal and Silent |
| 封裝 | 8-pin SOIC |
| 安裝類型 | SMD/SMT |
| Automotive Qualification | AEC-Q100 |
| RoHS 狀態 | ROHS |
| Verified Starting Price | $2.1437 as of 2026-10-29 |
TJA1051AT/0Z 8-pin soic 腳位配置指南
TJA1051AT/0Z（8-pin soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TJA1051AT/0Z.
請參閱 資料表 以查看完整腳位配置。
典型應用
TJA1051AT/0Z 適用於 6 應用s: Automotive Body Control Modules, Industrial CAN Automation, Vehicle Diagnostic Gateways, Embedded CAN Communication Modules, CAN-to-Serial Monitoring Tools, Motorcycle and Two-Wheeler Electronics.
Automotive Body Control Modules
The TJA1051AT/0Z fits automotive body-control and vehicle-network modules because the verified data identifies an AEC-Q100-qualified, 5 V, 5 Mb/s CAN transceiver in an 8-pin SOIC package. The device sits between a CAN controller and the CANH/CANL bus, allowing the controller to transmit and receive conventional high-speed CAN frames. Normal mode supports active network communication, while Silent mode can assist passive diagnostic monitoring when the exact pin behavior is implemented as described by NXP. The principal design trade-off is that transceiver qualification does not protect the bus from external automotive surges; designers still need appropriately rated protection, filtered supply rails, and controlled PCB layout.
推薦
Industrial CAN Automation
The TJA1051AT/0Z supports industrial automation equipment that uses a 5 V Controller Area Network at rates up to 5 Mb/s. Its one-driver, one-receiver CAN interface connects a host controller to a multi-node field bus without requiring a discrete bus driver and receiver pair. The 8-pin SOIC format is suitable for automated PCB assembly and compact control boards. For factory equipment, Silent mode may be useful for monitoring-only diagnostics, but the exact control polarity must be checked against the NXP datasheet. Designers should also evaluate industrial surge, ESD, common-mode, and temperature requirements separately from the transceiver's 5 Mb/s signaling rating.
推薦
Vehicle Diagnostic Gateways
The TJA1051AT/0Z is appropriate for a diagnostic gateway that bridges a host controller to a 5 V vehicle CAN network at up to 5 Mb/s. The verified automotive AEC-Q100 classification is relevant when the gateway is installed in an automobile, while the 8-pin SOIC package simplifies replacement on existing SOIC-8 boards. Normal mode enables active gateway communication, whereas Silent mode can support passive bus observation in a suitable architecture. Installation quality still depends on bus protection and grounding. The transceiver should be paired with a controller capable of the required CAN bit rate, and PCB signal routing should keep CANH and CANL geometry matched to minimize radiated emissions and susceptibility.
推薦
Embedded CAN Communication Modules
The TJA1051AT/0Z can provide the physical interface for compact embedded CAN communication modules operating from a 5 V rail. Its 5 Mb/s capability accommodates high-speed legacy CAN networks, while Normal and Silent modes give the host firmware options for active traffic or bus monitoring. The SOIC-8 package allows the interface to be assembled beside an MCU without a large connector or isolated transceiver package. Designers must not infer that a 5 Mb/s transceiver guarantees equivalent timing margin at every bus length; propagation delay, cable topology, termination, transceiver loop delay, and controller timing must all satisfy the applicable CAN network requirements.
推薦
CAN-to-Serial Monitoring Tools
The TJA1051AT/0Z is suitable for monitoring tools that observe CAN traffic while exposing data through another communications interface. The verified 5 Mb/s rating supports high-speed bus capture, and Silent mode provides a potential passive monitoring mode when its implementation matches the intended architecture. A practical monitoring product still requires a host controller, nonvolatile storage, a communications bridge, and a user interface; the transceiver handles only the CAN physical layer. Diagnostic engineers should confirm that the selected controller supports the required CAN version and error handling, and that the board includes selectable termination for bench use without accidentally loading production networks.
推薦
Motorcycle and Two-Wheeler Electronics
The TJA1051AT/0Z can interface a compact two-wheeler control unit to a 5 V CAN network operating up to 5 Mb/s. Its 8-pin SOIC package is compatible with automated assembly and provides a small footprint for electronic engine, chassis, or lighting controllers. The AEC-Q100 identification may be useful in automotive-adjacent designs, but the exact suffix temperature range and environmental requirements should be checked before treating it as sufficient for exposed or vibration-heavy installations. In such products, CAN wiring can experience large transients, so the implementation should include suitable input filtering or protection and maintain short, symmetric bus routing.
推薦
推薦產品摘要
工程參考資料，適用於 TJA1051AT/0Z — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TJA1051T/1J | TJA1051TK/3/1J | NCV7342 | TLE9251V | TCAN1042 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | onsemi | Infineon Technologies | Texas Instruments |
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Product Type | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | CAN transceiver | CAN transceiver | CAN transceiver |
主要差異化特點
- Verified automotive qualification in the specified order code (對比TJA1051TK/3/1J)
- Normal and Silent operating-mode support (對比NCV7342)
- Established 5 Mb/s, 5 V, 8-pin SOIC interface (對比TCAN1042)
設計說明
Route CANH and CANL as a closely matched differential pair and keep the route away from switching nodes, crystals, and high-current return paths. Place the transceiver close to the bus connector so protection components can precede the IC and reduce the unprotected cable-connected trace length. Use a continuous reference plane where the board stackup permits, avoid vias where practical, and provide the connector-side return path recommended by the selected protection-device manufacturer.
Do not treat SOIC-8 pin compatibility as proof that every TJA1051 suffix has identical control behavior. The supplied cross-reference material specifically mentions pin 5 differences among TJA1051 ordering variants. Verify the exact ordering table, mode-control polarity, RXD behavior in Silent mode, and timing limits against the official NXP datasheet before substituting a suffix or importing a cross-brand SOIC-8 transceiver.
CAN bus integrity depends on a controlled network, not only the transceiver. Terminate the bus at the two physical endpoints with the network's specified termination impedance, avoid unnecessary stubs, and use common-mode filtering only after checking its effect on bus timing. Validate radiated and conducted emissions with the production cable, connector, enclosure, and power-supply configuration because bench results without representative harnesses may not reflect vehicle or industrial EMC performance.
The verified device operates from a 5 V supply. Provide local high-frequency decoupling close to the supply and ground pins according to the NXP application guidance, and isolate it from noisy switching converters when bus communication margin is important. If a 3.3 V controller drives TXD, verify the input thresholds and logic levels for the exact TJA1051 suffix; a nominal 3.3 V signal cannot be assumed compatible with every 5 V transceiver input.
合規資訊
The JLCPCB result identifies the part as ROHS compliant, and the Arrow result identifies the TJA1051AT/0Z as AEC-Q100 automotive qualified. No verified REACH, lead-free, halogen-free, or conflict-minerals statement was supplied.