Model:TLP521-1GB
Model:TLP521-1GB
Manufacturer： Toshiba /Isocom Components
Stocks：2000
Describe：
Single-channel transistor output optocoupler, DIP-4 package. This device is internally composed of an infrared light-emitting diode (LED) and an NPN silicon phototransistor, and is packaged in a compact dual in-line plastic package. Electrical isolation between input and output is achieved through optical signals, with a maximum input-output isolation voltage of 5300Vrms. The current transfer ratio (CTR) range is 50% to 600% (GB grade ≥ 100%), suitable for DC input signal transmission. The collector-emitter load voltage is 55V, and the output current capacity is 50mA. It uses a DIP-4 through-hole package, with an operating temperature range of -30°C to +100°C (for some brands, it is -25°C to +85°C). This device is widely used in industrial control, power management, and other applications that require signal isolation.
Features ：
• Number of channels: 1 channel
• Output type: Phototransistor
• Isolation voltage: 2500Vrms to 5300Vrms (varies by brand; Isocom version is 5300Vrms, KTP version is 2500Vrms)
• Current Transfer Ratio (CTR): 50% to 600% (Minimum value for GB position is 100% @ 1mA)
• Collector-Emitter Voltage (VCEO): 55V
• Output current: 50mA
• Forward voltage drop (Vf): Typical value 1.15V
• Collector-emitter saturation voltage: 400 mV @ IF = 8 mA, IC = 2.4 mA
• Rise/fall time: Typical values 4us / 3us @ 2mA, 100Ω
• Operating temperature range: -30℃ to +100℃ (Isocom version) / -25℃ to +85℃ (KTP version)
• Environmental compliance: RoHS compliant, lead-free
• MSL level: Level-1 (Unrestricted, unlimited shelf life in the workshop)
Application：
• Industrial control: Programmable Logic Controller (PLC), factory automation equipment, signal isolation and conversion
• Switching Power Supply (SMPS): Feedback isolation circuit, voltage detection
• Smart electricity meter: Pulse signal isolation transmission
• Household appliances: Isolation of control circuits for equipment such as inverter air conditioners and washing machines
• Communication equipment: Digital signal isolation transmission, interface protection
