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Toshiba Semiconductor TLP385(BLL-TPL,E — Optoisolators
Toshiba Semiconductor

TLP385(BLL-TPL,E Transistor Optocoupler, 5000Vrms, 4-Pin SO

MPNTLP385(BLL-TPL,E
End of Life

Toshiba TLP385(BLL-TPL,E, 1-channel transistor optocoupler, DC input, 5000Vrms isolation, 200-400% CTR at 5mA, 80V output max, 50mA output, 2µs/3µs rise/fall, -55 to 110°C, 6-SOIC 4-lead, surface mount.

$0.54Ref. price · indicative, final on quote
TLP385(BLL-TPL,E datasheet
Packaging6-SOIC (0.173", 4.40mm Width), 4 Leads
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

TLP385(BLL-TPL,E Technical Specifications
ParameterValue
Input typeDC
Output typeTransistor
Mounting typeSurface 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
Number of channels1
Vce saturation300mV
Rise (Fall time)2µs, 3µs
Turn on (Turn off time)3µs, 3µs

Product details

5000Vrms isolation in a 4-lead SO package

The Toshiba TLP385(BLL-TPL,E is a 1-channel transistor optocoupler with a DC input and a phototransistor output, housed in a 6-SOIC package that uses only 4 leads. The 5000Vrms isolation rating suits it for galvanic isolation in power supplies, motor drives, and industrial interface circuits where the primary-to-secondary barrier must withstand high potential differences. The current transfer ratio is specified between 200% and 400% at a 5mA forward current, giving the designer a predictable gain window for driving logic inputs or low-current loads.

Temperature range and output drive

The output transistor can handle up to 80V and 50mA per channel, which is enough to switch a small relay, a PLC input, or a MOSFET gate through a pull-up resistor. Typical turn-on and turn-off times are both 3µs, with rise and fall times of 2µs and 3µs respectively — fast enough for 100 kHz switching or for debouncing isolated signals.

RoHS compliance is confirmed, which simplifies the BOM for EU-market equipment and avoids a separate waiver process.

Frequently asked questions

Does TLP385(BLL-TPL,E have a 4-pin SO package?

The package is a 6-SOIC body (0.173", 4.40mm width) with only 4 leads populated, so it is physically a 6-pin SOIC outline but electrically a 4-pin device.

What is the difference between TLP385(BLL-TPL,E and standard TLP385?

The TLP385(BLL-TPL,E is a specific CTR-binned variant within the TLP385 family, with a guaranteed CTR range of 200% to 400% at 5mA. The base TLP385 may have a wider or different CTR bin; check the CTR marking code on the part to confirm the bin. All TLP385 variants share the same 5000Vrms isolation, 80V output rating, and package footprint.