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Toshiba Semiconductor TLP292(Y-TPL,E — Optoisolators

TLP292(Y-TPL,E Toshiba 3750Vrms Transistor Output

MPNTLP292(Y-TPL,E
End of Life

Toshiba TLP292 series single-channel optoisolator, 3750Vrms isolation, transistor output, AC/DC input, 4-SOIC surface-mount package, -55°C to 125°C operating range

$0.55Ref. price · indicative, final on quote
Toshiba Semiconductor TLP292(Y-TPL,E datasheet (PDF)
Packaging4-SOIC (0.179", 4.55mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TLP292(Y-TPL,E specifications
ParameterValue
Input typeAC, DC
Output typeTransistor
MountingSurface Mount
Voltage - isolation3750Vrms
Voltage - output80V
Voltage - forward (Vf)1.25V
Current - output (Channel)50mA
Current transfer ratio150% @ 5mA
Current - DC forward (If)50 mA
Operating temperature-55°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Case4-SOIC (0.179\", 4.55mm Width)
Channels1
Vce saturation300mV
Rise (Fall time)2µs, 3µs
Turn on (Turn off time)3µs, 3µs

Product details

Isolation barrier and input flexibility

The TLP292(Y-TPL,E is a single-channel transistor-output optoisolator from Toshiba, rated for 3750Vrms isolation (cite:). That isolation voltage suits it for galvanic separation in industrial controls, PLC I/O modules, and power-supply feedback loops where the primary and secondary must not share a ground path. Input side accepts both AC and DC drive (cite:), so the LED conducts on either polarity — handy when the signal source is a bipolar AC line or a DC logic level without worrying about orientation.

Full military-grade temperature span of -55°C to 125°C (cite:) means this part holds its CTR and isolation through cold starts and hot enclosures — think outdoor telecom cabinets or engine-bay-adjacent electronics.

Output drive and saturation

The phototransistor can sink up to 50 mA continuous per channel (cite:) with a maximum Vce saturation of 300 mV (cite:). That 300 mV drop at 50 mA keeps the output low enough to drive a 5 V logic input directly without a level shifter.

ROHS3 compliant (cite:) — no lead, no conflict minerals concern.

Frequently asked questions

What is the closest pin-compatible alternative to TLP292(Y-TPL,E?

Within the Toshiba TLP family, the TLP293 is a common cross-shop candidate. Both are single-channel transistor-output optos in 4-SOIC. The TLP293 typically offers a higher isolation voltage (5000Vrms vs 3750Vrms) and a slightly different CTR spread — verify the pinout and CTR bin before substituting.

What is TLP292(Y-TPL,E's listed package?

The package is 4-SOIC (0.179", 4.55 mm width) (cite:), supplier device package 4-SO (cite:). Surface-mount only.

What input types does TLP292(Y-TPL,E support?

It accepts both AC and DC input drive (cite:). The internal LED conducts on both half-cycles with AC, or with a single DC polarity — no need for a bridge rectifier on the input.