Applications
• Programmable Logic Controllers (PLCs)
• Switching Power Supplies
• Simplex/Multiplex Data Transmission

General
The Toshiba TLP291-4 consists of phototransistors optically coupled to an infrared LED. The TLP291-4 Photocoupler is housed in the very small and thin SO16 package.
Since the TLP291-4 is guaranteed over a wide operating temperature range (Ta = -55 to 110 ℃), it is suitable for high-density surface mount applications such as programmable controllers.

Features
(1) Collector-emitter voltage: 80 V (min)
(2) Current transfer ratio: 50 % (min)
GB Rank: 100 % (min)
(3) Isolation voltage: 2500 Vrms (min)
(4) Operating temperature: -55 to 110 
(5) Safety standards
UL-recognized: UL 1577, File No.E67349
cUL-recognized: CSA Component Acceptance Service No.5A File No.E67349
VDE-approved: EN 60747-5-5 (Note 1)
CQC-approved: GB4943.1, GB8898 Thailand Factory