TJF1051T/3/1 - High-Speed CAN Transceiver SOIC-8 | NXP
MPN: TJF1051T/3/1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.65 | $16.50 |
| 100 | $1.18 | $118.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.78 | $780.00 |
TJF1051T/3/1 Overview
A CAN transceiver is a physical-layer (PHY) device that converts digital logic from a microcontroller into the differential dominant/recessive signaling required by the ISO 11898 CAN bus standard. Inside the broader product taxonomy it sits beneath CAN interface ICs -> network interface ICs -> interface ICs -> integrated circuits. The TJF1051T belongs to NXP's family of third-generation high-speed CAN transceivers designed to replace the legacy TJA1051/PCA82C250/IFX1051LE predecessors while delivering enhanced electromagnetic compatibility and electrostatic discharge immunity.
Key features of the TJF1051T/3/1 include improved EMC/ESD performance compared with earlier generations, ideal passive behavior on the CAN bus when supply voltage is removed (zero load with VCC = 0 V so the bus is not biased by the node), an S (Silent) pin for low-power listen-only mode, and bus-fault protection against automotive transients per ISO 7637. The differential bus pins (CANH, CANL) tolerate typical automotive battery and jump-start voltages present on 12 V systems.
Internal architecture combines a high-speed differential driver/receiver pair with thermal shutdown, under-voltage detection on VCC/VIO, bus-dominant time-out protection, and an unpowered node detection that keeps the bus in recessive when the IC is off. Together these blocks implement the CAN physical layer defined in ISO 11898-2:2003, ISO 11898-5:2007 and the pending updated ISO 11898-2:2016 release, including the CAN FD frame format.
Typical applications include body-control modules, powertrain networks, electric vehicle battery management (BMS) slave nodes, industrial CANopen and DeviceNet nodes, onboard chargers, and CAN-to-UART bridges for diagnostics. The /3 variant is the right choice when pairing with a 5 V microcontroller, while the non-/3 variant supports a separate VIO rail for 3.3 V MCUs.
The TJF1051T/3/1 was developed as a pin-compatible, functionally equivalent upgrade for the TJA1051T/3 in existing automotive CAN networks, allowing reuse of proven PCB footprints. When designing, ensure the bus-termination topology and stub lengths follow ISO 11898-2 to maximize signal integrity at 1 Mbit/s and beyond. The Silent pin enables low-current standby and is required for partial-networking sleep modes.
This page synthesizes NXP manufacturer specifications, distributor pricing tiers, cross-brand drop-in alternatives (TCAN1051, MCP2562FD, NCV7342), and practical PCB layout notes - content not compiled on the manufacturer product page alone.
Drop-in alternatives for TJF1051T/3/1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TJF1051T/3/1 (same form factor and footprint) — differing in Package, Product Type, Protocol, Operating Temperature, Duplex.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TJA1051T/3,118
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TJF1051T/3,118
✅ Drop-In📋 Reference alternative (not in catalog)
TJF1051T/3/1J
✅ Drop-In✓ In Stock
$0.68 / Unit
View Datasheet →TCAN1051VDRQ1
✅ Drop-In✓ In Stock
$0.31 / Unit
View Datasheet →MCP2562FD-E/SN
✅ Drop-In✓ In Stock
$0.62 / Unit
View Datasheet →NCV7342D10R2G
✅ Drop-In📋 Reference alternative (not in catalog)
TLE9251VLE
✅ Drop-In📋 Reference alternative (not in catalog)
TJF1051T/3/1 Specifications
| Product Type | High-speed CAN transceiver (1/1) |
| Protocol | ISO 11898-2:2003 / ISO 11898-5:2007 / ISO 11898-2:2016 (CAN, CAN FD) |
| Number of Drivers/Receivers | 1/1 |
| Bus Data Rate | Up to 1 Mbit/s (CAN); CAN FD to higher bit rates |
| Supply Voltage (VCC) | 4.75 V to 5.25 V (typical 5 V) |
| VIO Supply | Internally tied to VCC (5 V MCU I/O variant, /3 suffix) |
| Digital I/O Logic Level | Compatible with 5 V microcontrollers (TXD, RXD, S) |
| Operating Temperature | -40C to +150C (automotive grade 1) |
| ESD Performance | Enhanced; HBM/CDM beyond legacy TJA1051 levels |
| Bus Fault Protection | Transient tolerant per ISO 7637 |
| Unpowered Bus Behavior | Ideal passive (no bus load when VCC = 0 V) |
| Silent Mode Pin | Yes (S pin for listen-only/standby) |
| Thermal Shutdown | Yes |
| Under-voltage Lockout | Yes (VCC and VIO) |
| Package | 8-pin SOIC (SO-8), surface mount |
| Mounting Type | Surface Mount |
| MSL Level | 1 (JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Marking | TJF1051T/3 (Tape & reel /1 suffix) |
TJF1051T/3/1 Pin Configuration
| Pin 1 | TXD — Transmit data input from CAN controller (logic-level on /3 variant: 5 V) |
| Pin 2 | GND — Ground (0 V reference for logic and bus) |
| Pin 3 | VCC — 5 V supply for bus drivers and core analog (4.75 V to 5.25 V) |
| Pin 4 | RXD — Receive data output to CAN controller |
| Pin 5 | VIO — Logic-level supply; internally tied to VCC on /3 variant for 5 V MCU I/O |
| Pin 6 | CANL — CAN bus low line (differential) |
| Pin 7 | CANH — CAN bus high line (differential) |
| Pin 8 | S — Silent/Standby mode input (high = listen-only / low power) |
Typical Applications
TJF1051T/3/1 is suitable for 6 applications: Automotive Body Control Modules (BCM), EV Battery Management Systems (BMS slave/CMU nodes), CANopen Industrial Nodes (PLCs, Servo Drives), On-Board Chargers & EV Chargers (PWM Pilot / CAN COM), Industrial Robotic & AGV CAN Networks, Automotive Diagnostic Gateways (CAN-to-UART/USB bridges).
Automotive Body Control Modules (BCM)
The TJF1051T/3/1 is a drop-in upgrade for the TJA1051T/3 in BCMs and is well suited to drive the differential CAN bus that connects BCMs to door modules, seat controllers, lighting nodes, and HVAC slaves at 500 kbit/s classical CAN. Its enhanced EMC and ESD headroom plus -40C to +150C Grade 1 support shorten qualification time on 12 V board-nets that must survive ISO 7637-2 pulse 1/2/3 transients.
Recommended
EV Battery Management Systems (BMS slave/CMU nodes)
Each cell-monitoring unit in an EV BMS links to the BMU through a TJF1051T/3/1 driving the CAN bus at 500 kbit/s classical CAN or CAN FD with tighter payload. The improved unpowered bus behavior keeps the network recessive when a CMU is shorted or unhooked, preventing false-dominant corruption of the bus by a faulted node - a critical behavior for high-voltage battery packs.
Recommended
CANopen Industrial Nodes (PLCs, Servo Drives)
Industrial CANopen slaves and drives use the TJF1051T/3/1 to terminate one end of a CANopen backbone at 125 kbit/s to 1 Mbit/s. The /3 version avoids the need for an external 3.3 V rail, simplifying DIN-rail mounted modules that have only 5 V available, and the Silent pin enables listen-only commissioning and bus diagnostics without disturbing traffic.
Recommended
On-Board Chargers & EV Chargers (PWM Pilot / CAN COM)
On-board chargers and off-board EVSE chargers require a robust CAN interface for IEC 61851 COM signaling and for diagnostics between charger and BMS. The TJF1051T/3/1's improved load-dump tolerance and -40C to +125C operating range keep the communication link up across engine-bay heat soak and cold-soak conditions, while the Silent pin eases low-power standby between charging sessions.
Recommended
Industrial Robotic & AGV CAN Networks
In AGVs, AMRs, and 6-axis robotic arms, the TJF1051T/3/1 connects motion controllers to servo amplifiers, IMU nodes, and safety scanners over CANopen DS402 or CAN FD drives on a 1 Mbit/s differential trunk. The MCU's 5 V I/O compatibility removes one voltage rail from the controller PCB, and the enhanced EMC gives extra noise margin against the PWM motor switching transients typical of servo loops.
Recommended
Automotive Diagnostic Gateways (CAN-to-UART/USB bridges)
Diagnostic gateways, including ELM327-style clones and OEM telematics modules, use the TJF1051T/3/1 to tap a CAN bus via a serial command interface. The chip's Silent pin lets the OBD gateway go listen-only for emission of UDS $22 ReadDataByIdentifier responses without driving the bus, while its unpowered passive behavior keeps the OEM bus recessive when the diagnostic tool is unplugged - exactly what regulations require.
Recommended
Recommended Products Summary
Engineering reference data for TJF1051T/3/1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1051T/3,118 | TCAN1051V | MCP2562FD | NCV7342D10R2G | TLE9251VLE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Microchip Technology | onsemi | Infineon |
| Package | SOIC-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same |
| Bus Data Rate | Up to 1 Mbit/s (classical CAN); CAN FD to higher | Up to 1 Mbit/s; CAN FD capable | Up to 1 Mbit/s; CAN FD to 5 Mbit/s | Up to 1 Mbit/s; CAN FD to 8 Mbit/s | Up to 1 Mbit/s; CAN FD | Up to 2 Mbit/s (CAN FD capable) |
| VCC Supply | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| VIO / Logic Level | Internally tied to VCC (5 V MCU) | Internally tied to VCC (5 V MCU) | Separate VIO supports 3 V or 5 V | Separate VIO supports 3 V or 5 V | Separate VIO supports 3 V or 5 V | Separate VIO supports 3 V or 5 V |
| Silent / Standby Pin | S pin (high = listen-only) | S pin (high = listen-only) | STBY pin (active-low standby) | STBY pin (active-low standby) | EN/SLP pin (Enable/Sleep) | EN/NRM pin (Enable/Normal) |
| AEC-Q100 Qualification | Automotive-grade (TJF1051T family) | Automotive-grade (TJA1051T family) | AEC-Q100 Grade 1 | AEC-Q100 Grade 0/1 variants | AEC-Q100 Grade 1 | AEC-Q100 Grade 1 |
| ESD Performance (HBM, approx.) | Enhanced vs TJA1051T (per NXP datasheet) | Legacy spec (lower) | Up to 8 kV HBM bus side | Up to 6 kV HBM bus side | Up to 4 kV HBM bus side | Up to 6 kV HBM bus side |
Key Differentiators
- Newer-generation EMC/ESD performance vs legacy TJA1051T (vs TJA1051T/3,118)
- Single-catalog second source from Texas Instruments (vs TCAN1051V)
- Splittable termination output as second-source option (vs MCP2562FD)
Design Notes
Place the VCC bypass capacitor (typically 100 nF X7R) within 3 mm of pin 3, and tie the GND plane directly to pin 2 with a short, wide copper pour to keep the high-speed CAN edges from injecting ground-noise. Place a 120 ohm split-termination resistor pair close to pins 6 (CANL) and 7 (CANH) so stub length is minimized - this is required for reliable 1 Mbit/s plus CAN FD and reduces ringing that EMC tests can spot.
Do NOT mix the /3 (VIO tied to VCC, 5 V MCU) and non-/3 (separate VIO rail) variants on the same PCB layout if a 3.3 V MCU might be installed later. Pin 5 on /3 variants is hard-tied to VCC internally and must not be driven from a separate 3.3 V regulator - if you need both MCU voltage options, choose TJF1051T (no /3 suffix) or a VIO-capable cross-brand part such as TCAN1051V or MCP2562FD.
Match the lengths of the CANL and CANH traces to within 1 mm, and keep both traces routed over a continuous ground plane in a twisted or symmetric pair topology. Avoid routing CANH/CANL through vias inside the transceiver-to-connector path; stubs beyond the 1 Mbit/s bit time budget can corrupt frames and cause intermittent bus errors that appear as intermittent FCE bit-stuffing faults.
The TJF1051T/3/1 already delivers enhanced EMC performance versus the TJA1051T, but adding a common-mode choke (CMC) between the bus connector and pins 6/7 plus a 4.7 nF Y-rated shunt cap to ground remains a best practice for < 30 MHz CISPR 25 Class 5 conformance. Pull the bus split-termination bias midpoint through 1 kohm/10 nF to chassis ground within 5 mm of the CMC to keep the boundary-mode loop area minimal.
Compliance Information
RoHS and REACH compliant per NXP product page. Automotive-grade variants are available and the TJF1051T family supports AEC-Q100 Grade 1 builds; verify the specific /3 /1J suffix and TJ prefix on the order quote for explicit Grade 1 qualification. AEC-Q100 designation is required for OEM automotive deployment.
