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Texas Instruments ISO6731FQDWRQ1 — Digital Isolators

TI ISO6731FQDWRQ1 CAN Isolator, 50 Mbps, AEC-Q100, 16-SOIC

MPNISO6731FQDWRQ1
End of Life

Texas Instruments ISO6731FQDWRQ1, Automotive CAN isolator, 3-channel unidirectional, 50 Mbps data rate, 5000 Vrms isolation, 2.25 V to 5.5 V supply, -40°C to 125°C, 16-SOIC package, AEC-Q100 qualified.

$2.44Ref. price · indicative, final on quote
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ISO6731FQDWRQ1 key specifications
ParameterValue
TypeCAN
Channel typeUnidirectional
MountingSurface Mount
Voltage2.25V ~ 5.5V
Voltage - isolation5000Vrms
Isolated powerNo
Operating temperature-40°C ~ 125°C
Pulse width distortion7ns
GradeAutomotive
PackageTape & Reel (TR); Cut Tape (CT)
Data rate50Mbps
TechnologyCapacitive Coupling

All specifications

ISO6731FQDWRQ1 additional specifications
ParameterValue
QualificationAEC-Q100
Case16-SOIC (0.295\", 7.50mm Width)
Channels3
Inputs - side 1/Side 23/0
Rise (Fall time)2.6ns, 2.6ns
Propagation delay tpLH (tpHL)18ns, 18ns
Common mode transient immunity50kV/µs

Product details

Three-channel CAN isolator for automotive buses

It is AEC-Q100 qualified and provides 5000 Vrms galvanic isolation across a 2.25 V to 5.5 V supply range.

The 18 ns max propagation delay (both tpLH and tpHL) and 7 ns max pulse-width distortion preserve timing for CAN FD. Rise and fall times are a typical 2.6 ns. Supply voltage covers 2.25 V to 5.5 V on both sides. The 16-SOIC wide-body package (7.50 mm width) provides creepage for 5000 Vrms isolation.

It is a current-generation part from TI's automotive isolator family. For dual-sourcing or a pin-compatible alternate, the non-automotive ISO6731DWR shares the same 3/0 channel count, 50 Mbps data rate, and 16-SOIC footprint — the main difference is the absence of AEC-Q100 qualification, so it fits prototypes or non-automotive builds where the temperature range is still -40°C to 125°C.

Integration note

Surface-mount only — the 16-SOIC wide-body is hand-solderable. No isolated power on-chip; the bus-side transceiver needs its own rail. The 3/0 channel layout routes three signals from the CAN controller across the barrier.

Frequently asked questions

Is ISO6731FQDWRQ1 AEC-Q100 qualified for automotive use?

Yes, the ISO6731FQDWRQ1 is AEC-Q100 qualified, making it suitable for automotive applications including under-hood and chassis-domain electronics.

Can ISO6731FQDWRQ1 be used with CAN transceivers?

Yes, the part is listed as a CAN-type isolator. Its 50 Mbps data rate and 18 ns propagation delay are well within the timing requirements for CAN and CAN FD transceivers.

What is the recommended replacement or cross reference for ISO6731FQDWRQ1 if obsolete?

The ISO6731FQDWRQ1 is currently Active, so no replacement is needed. For a non-automotive alternate, the ISO6731DWR is pin-compatible with the same 3/0 channel count and 50 Mbps data rate but lacks AEC-Q100 qualification.