Toshiba TLP168J User Guide
Summary
This optocoupler is a small, surface-mount module featuring an infrared LED optically coupled to a photo triac. It provides high electrical isolation (2500 Vrms) and zero-voltage crossing turn-on capability, making it ideal for safe switching applications in programmable controllers and solid state relay modules. The accompanying manual details the full range of operational parameters, including comprehensive electrical characteristics, temperature derating curves, and maximum ratings to ensure reliable system design. This technical guide is essential reading for electrical engineers and designers building high-reliability industrial or domestic control equipment.
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TLP168J
TOSHIBA Photocoupler Ga AℓAs IRed & Photo-Triac et ec to LE TENTATIVE
TLP168J
Triac Drive
Unit in mm
Programmable Controllers AC−Output Module Solid State Relay
The TOSHIBA mini flat coupler TLP168J is a small outline coupler, suitable for surface mount assembly. The TLP168J consists of a photo triac, optically coupled to a Ga AℓAs infrared emitting diode. Zero−voltage crossing turn−on Peak off−state voltage: 600 V (min.) Trigger LED current: 3 m A (max.) On−state current: 70 m A (max.) Isolation voltage: 2500 Vrms (min.)
Maximum Ratings (Ta = 25°C)
Characteristic Symbol Rating Unit
TOSHIBA 11−4C3
Forward current IF 20 m A
Weight: 0.09 g
Forward current derating (Ta ≥ 25°C) ∆IF / °C 0.2 m A / °C Peak forward current Pin Configurations (100µs pulse, 100 pps) IFP 1 A Reverse voltage VR 5 V Junction temperature Tj 125 °C Off state output terminal voltage VDRM 600 V
Ta=25°C 70 Onstate RMS
IT(RMS) m A
current Ta=70°C
1: Anode Onstate current derating 3: Cathode
(Ta ≥ 25°C) ∆IT / °C 0.67 m A / °C 4: Terminal 1
6: Terminal 2
Peak onstate current (100µs pulse, 120 pps) ITP 2 A Peak nonrepetitive surge current (PW=10ms, DC=10%) ITSM 1.2 A Junction temperature Tj 115 °C Storage temperature range Tstg 55~125 °C Operating temperature range Topr 40~100 °C Lead soldering temperature (10s) Tsol 260 °C Isolation voltage (AC, 1 min., R.H. ≤ 60%) (Note) BVS 2500 Vrms
(Note) Device considered a two terminal device: Pins 1 and 3 shorted together and pins 4 and 6 shorted together.
Page Summary Contents For Toshiba TLP168J User Guide
Manual Details
| Brand | Toshiba |
|---|---|
| Pages | 5 |
| File Size | 156.23 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What type of coupling does the TLP168J device use?
It consists of a photo triac, optically coupled to a GaAℓAs infrared emitting diode.
What is the minimum isolation voltage?
The isolation voltage (BV) is 2500 Vrms at 1 minute and R.H. ≤ 60% AC.
How is the TLP168J device physically mounted?
It is a small outline coupler suitable for surface mount assembly.
What temperature range can the unit operate in?
The operating temperature (opr) range is -40°C to 100°C.