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Toshiba Releases High Voltage 1500V Automotive Photorelay

New device is suited for high voltage automotive batteries


January 20, 2022

KAWASAKI, Japan— Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched “TLX9160T,” a normally open (NO) 1-Form-A photorelay suited for high voltage automotive batteries. Housed in an SO16L-T package, the new device is Toshiba’s first to feature a high output withstand voltage of 1500V (min). Volume shipments start today.

Incorporation of high voltage MOSFETs in the new device achieves an output withstand voltage of 1500V (min). An SO16L-T package made of a resin in the IEC 60664-1 international standard material group I[1], which has CTI[2] exceeding 600 and four fewer pins (pins from 11 to 14 are removed from existing SO16L package), realizes creepage of 5mm or more[3] at the device's detector. This ensures support for 1000V supply voltage under IEC 60664‐1, suiting the photorelay for high voltage automotive applications with a battery voltage of up to 1000V.


  • Automotive equipment
  • Battery Management Systems: battery voltage monitoring, mechanical relay sticking detection, ground fault detection, etc.


  • High output withstand voltage: VOFF=1500V (min)
  • Normally open (1-Form-A) device
  • Avalanche current rating: IAV=0.6mA
  • High isolation voltage: 5000 Vrms (min)
  • AEC-Q101 qualified

Main Specifications

(Unless otherwise specified, Ta=25°C)

Part number




Absolute maximum rating

Forward current IF (mA)


On-state current ION (mA)


Operating temperature Topr (°C)

-40 to 125

Avalanche current IAV (mA)


Electrical characteristics

Off-state current

IOFF max (nA)



Output withstand voltage

VOFF min (V)



Recommended operating conditions

Supply voltage VDD max (V)


Coupled electrical characteristics

Trigger LED current

IFT max (mA)



Return LED current

IFC min (mA)

@Ta=-40 to 125°C


On-state resistance

RON max (Ω)


IF=10mA, t<1s


Switching characteristics

Turn-on time tON max (ms)


Turn-off time tOFF max (ms)


Isolation characteristics

Isolation voltage BVS min (Vrms)


Clearance distance min (mm)


Creepage distance min (mm)





Size typ. (mm)


Sample Check & Availability

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Follow the link below for more on Toshiba’s Isolators and Solid State Relays.

Isolators/Solid State Relays

Follow the link below for more on Toshiba’s Automotive Devices.

Automotive Devices

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[1] IEC 60664-1 groups molded materials according to CTI[2] value.: CTI 600
[2] Comparative Tracking Index: IEC 60112 defines CTI as the maximum possible voltage before droplets of ammonium chloride solution on the surface of the insulating material cause tracking, under the given test conditions.
[3] @Working voltage=1000V, material group I, pollution degree 2 (the degree of pollution of the operating environment where electrical equipment is used; pollutants are entirely non-conductive, but could potentially be rendered conductive by condensation.)

Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.

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