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SN65HVD251QDRQ1

TI SN65HVD251QDRQ1 CAN Transceiver, 1Mbps, AEC-Q100, 8-SOIC

MPNSN65HVD251QDRQ1
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Texas Instruments SN65HVD251QDRQ1, Automotive AEC-Q100 CANbus Transceiver, Half-Duplex, 1Mbps, 4.5V~5.5V, -40°C~125°C, 8-SOIC.

$4.3800Ref. price · indicative, final on quote
Texas Instruments SN65HVD251QDRQ1 datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SN65HVD251QDRQ1 specifications
ParameterValue
TypeTransceiver
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
ProtocolCANbus
Operating temperature-40°C~125°C
DuplexHalf
PackageTape & Reel (TR); Cut Tape (CT)
Data rate1Mbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis100 mV
Number of drivers (Receivers)1/1

Product details

CANbus transceiver for the 5V automotive bus

The SN65HVD251QDRQ1: The receiver hysteresis of 100 mV gives it clean noise rejection on a loaded CAN differential pair — useful when the bus runs through a harness shared with ignition noise or inverter switching edges.

5V supply — not a 3.3V part

The supply range is 4.5V to 5.5V, so this transceiver runs on a 5V CANbus rail only. It will not operate from a 3.3V supply — the bus common-mode and differential output levels are specified for the 5V domain. If your microcontroller is 3.3V, you still need a 5V rail for the transceiver and level translation on the TXD/RXD pins. The base product number 65HVD251 family includes no 3.3V variant; that is the SN65HVD230 line.

The ROHS3 compliance is confirmed.

It comes in an 8-SOIC package with 0.154 inch body width (3.90 mm).

Frequently asked questions

Is SN65HVD251QDRQ1 a direct replacement for SN65HVD251D?

Yes, the SN65HVD251QDRQ1 is the automotive-qualified (AEC-Q100) version of the base SN65HVD251D. The package is the same 8-SOIC footprint. The non-Q1 variant lacks the AEC-Q100 certification, so for automotive BOMs the QDRQ1 is the correct drop-in replacement.

Can SN65HVD251QDRQ1 be used in a 3.3V system?

No. The supply voltage range is 4.5V to 5.5V, so a 3.3V rail is outside the operating limits. The transceiver's bus output levels and receiver thresholds are designed for a 5V CANbus. If your system runs on 3.3V, look at the SN65HVD230 family which is specified for 3.3V operation.

What is the difference between SN65HVD251QDRQ1 and SN65HVD230?

The primary difference is the supply voltage. The SN65HVD251QDRQ1 runs on 4.5V to 5.5V (5V CANbus), while the SN65HVD230 is a 3.3V transceiver. Both are half-duplex CANbus parts at 1Mbps, but the supply rail dictates which one fits your system's power architecture. The SN65HVD251QDRQ1 also carries AEC-Q100 qualification; the SN65HVD230 may or may not depending on the suffix.