TOSHIBA TLP293(GB-TPL

Mfr. Part

TLP293(GB-TPL)

Manufacturer

Toshiba Electronic Devices & Storage Corporation (TAEC product line)

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Detailed Description

Phototransistor-output photocoupler (optocoupler) in mini-flat SO-4 (SOP4) SMD package

CTR rank GB/B (typical rank B), designed for stable current transfer ratio around 100–200% at IF=5 mA, VCE=5 V

“G” indicates Pb‑free, RoHS/halogen‑free “green” device; “TPL” indicates tape-and-reel packaging

Used for signal isolation and noise suppression between low-voltage logic and high-voltage/high‑noise domains

Key Features

Galvanic isolation between input LED and output transistor

CTR rank B (approx. 100%–200%) for consistent gain in feedback loops

High isolation voltage (widely used ratings up to about 3750 Vrms; see datasheet for exact value)

Output transistor VCEO rating typically up to 80 V (check exact model datasheet)

Low input drive: LED forward voltage ~1.2 V typ at IF=5 mA

Compact SO‑4 footprint for high-density layouts

Operating temperature wide range (commonly −55°C to +110°C; refer to datasheet)

Safety approvals available on many Toshiba photocouplers (verify specific file numbers in datasheet)

Key Advantages

Simple, low-cost isolation with predictable gain

Small SMD package reduces PCB area and height

Good noise immunity and common-mode isolation for industrial and SMPS designs

Tape-and-reel “TPL” for automated assembly

Lead-free, RoHS compliant

Packaging

Type: Mini-flat SO-4 (SOP4) surface-mount; ordering code suffix “-TPL” = tape-and-reel

Material: Molded epoxy resin, Pb-free/halogen-free “G” green package

Size: Low-profile mini-flat 4-pin package (see datasheet mechanical drawing for exact dimensions and land pattern)

Pin configuration (viewed from top):

1 Anode

2 Cathode

3 Emitter

4 Collector

Thermal characteristics (typical for this family; confirm in datasheet):

• Operating temperature: about −55°C to +110°C

• Power dissipation: LED and detector sections with standard derating over temperature

Electrical properties (rank/typical conditions; confirm in datasheet):

• CTR (rank B/GB): ~100%–200% at IF=5 mA, VCE=5 V, TA=25°C

• Isolation voltage: commonly specified around 3750 Vrms

• VCEO (transistor): up to ~80 V

• VF (LED): ~1.2 V typ at 5 mA

• Switching times: fast enough for general-purpose signal isolation (tens of microseconds class)

Lifecycle

Status: Active, widely used, not near discontinuation based on current market data

Direct equivalents or alternatives (verify pinout/ratings and CTR rank before use):

• Toshiba TLP291 series (similar SO‑4 photocoupler, different CTR ranks)

• Toshiba TLP185/TLP182 series (compact SMD photocouplers)

• Renesas PS2561B-1 (SO‑4, phototransistor output)

• Vishay VO615A-B (SO‑4, rank B CTR)

• Everlight EL817S-B / Lite-On LTV‑817S‑B (SO‑4, general-purpose, check isolation and CTR)

If you need pin‑for‑pin or automotive/medical‑grade options, please contact our Y‑IC sales team via our website for the most suitable cross and compliance details.

Key Application Areas

SMPS feedback control (primary–secondary isolation)

PLC and industrial control I/O isolation

Microcontroller and sensor signal isolation from high-voltage domains

Relay/triac/transistor driver interfaces

Inverter and motor control signal isolation

Metering and home appliance isolation interfaces

Datasheet

Y-IC hosts the most authoritative and up-to-date datasheet for TLP293(GB-TPL) on our product page. For exact electrical limits, mechanical dimensions, safety approvals, and CTR rank definitions, download the datasheet on this page now for accurate design-in.

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