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Toshiba Semiconductor TLP385(BLL-TPR,E — Optoisolators

TLP385(BLL-TPR,E Toshiba Optocoupler 5000Vrms DC Input

MPNTLP385(BLL-TPR,E
End of Life

Toshiba TLP385(BLL-TPR,E, single-channel transistor-output optocoupler, 5000Vrms isolation, DC input, surface-mount 6-SOIC package, 200-400% CTR at 5mA.

$0.54Ref. price · indicative, final on quote
Toshiba Semiconductor TLP385(BLL-TPR,E datasheet (PDF)
Packaging6-SOIC (0.173", 4.40mm Width), 4 Leads
RoHSRoHS Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TLP385(BLL-TPR,E specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingSurface Mount
Voltage - isolation5000Vrms
Voltage - output80V
Voltage - forward (Vf)1.25V
Current - output (Channel)50mA
Current transfer ratio400% @ 5mA
Current - DC forward (If)50 mA
Operating temperature-55°C ~ 110°C
PackageTape & Reel (TR); Cut Tape (CT)
Case6-SOIC (0.173\", 4.40mm Width), 4 Leads
Channels1
Vce saturation300mV
Rise (Fall time)2µs, 3µs
Turn on (Turn off time)3µs, 3µs

Product details

Isolation barrier and CTR window

The TLP385(BLL-TPR,E is a single-channel transistor-output optocoupler from Toshiba Semiconductor, rated for 5000Vrms isolation between input and output — enough for reinforced isolation in mains-referenced circuits like PLC digital inputs or motor-drive feedback interfaces. That gain margin is what lets you drive a 5V logic input with a 5mA LED current and still have headroom for CTR degradation over life.

Toshiba lists the TLP385(BLL-TPR,E as Active with RoHS compliance.

Frequently asked questions

What is the CTR range of TLP385(BLL-TPR,E and is it suitable for 5V logic?

The CTR is 200% minimum and 400% maximum at a forward current of 5mA. With a typical Vf of 1.25V at that drive, the LED side is easily driven from a 3.3V or 5V logic output through a series resistor. The 80V collector rating and 50mA output current give ample margin for 5V logic levels.