DESCRIPTION
The TCLD1000 consists of a darlington phototransistor
optically coupled to a gallium arsenide infrared-emitting
diode in a 4-lead SO6L package.

AGENCY APPROVALS
• UL1577, file no. E76222
• CSA 22.2 bulletin 5A, double protection
• BSI IEC 60950; IEC 60065
• DIN EN 60747-5-2 (VDE 0884)/DIN EN 60747-5-5 pending

FEATURES
• Low profile package
• Darlington output
• Extra low coupling capacity - typical 0.2 pF
• High common mode rejection
• Creepage current resistance according to
VDE 0303/IEC 60112 comparative tracking
index: CTI ≥ 175
• Creepage distance > 8 mm
• Tested acc. 60950: AM4: 1997 clause 2.9.6.
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912

APPLICATIONS
• Switch-mode power supplies
• Line receiver
• Computer peripheral interface
• Microprocessor system interface
• Reinforced isolation provides circuit protection against
electrical shock (safety class II)
• Circuits for safe protective separation against electrical
shock according to safety class II (reinforced isolation):
- for appl. class I to IV at mains voltage ≤ 300 V
- for appl. class I to III at mains voltage ≤ 600 V
according to DIN EN 60747-5-2 (VDE 0884)