Product Summary
The TLP521-1 is a Photocoupler. It consists of a photo-transistor optically coupled to a gallium arsenide infrared emitting diode. The applications of the TLP521-1 include Programmable Controllers, AC/DC-Input Module, Solid State Relay.
Parametrics
TLP521-1 absolute maximum ratings: (1)Pulse forward current:1A (100μ pulse, 100pps); (2)Reverse voltage:5 V ; (3)Junction temperature:125℃ ; (4)Collector-emitter voltage:55 V ; (5)Emitter-collector voltage:7 V ; (6)Collector current:50 mA ; (7)Collector power dissipation (1 circuit):150mW ; (8)Collector power dissipation derating (1 circuit Ta ≥ 25℃):-1.5mW /℃ ; (9)Junction temperature:125℃; (10)Storage temperature range:-55℃ to 125℃ ; (11)Operating temperature range:-55℃ to 100℃; (12)Lead soldering temperature:260 (10 s)℃; (13)Total package power dissipation:250mW ; (14)Total package power dissipation derating(Ta ≥ 25℃):2.5mW /℃ ; (15)Isolation voltage:2500Vrms(AC, 1min., R.H.≤ 60%); (16)Forward current:70mA ; (17)Forward current derating:-0.93mA/℃ (Ta ≥ 50℃).
Features
TLP521-1 features: (1)Collector-emitter voltage: 55 V (min) ; (2)Current transfer ratio: 50% (min), Rank GB: 100% (min) ; (3)Isolation voltage: 2500 Vrms (min) ; (4)UL recognized: made in Japan: UL1577, file No. E67349, made in Thailand: UL1577, file No. E152349 .
Diagrams

| Image | Part No | Mfg | Description | ![]()  | 
                            Pricing (USD)  | 
                            Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
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                            ![]() TLP521-1  | 
                            ![]() Other  | 
                            ![]()  | 
                            ![]() Data Sheet  | 
                            ![]() Negotiable  | 
                            
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![]()  | 
                            ![]() TLP521-1(Y,F,T)  | 
                            ![]() Toshiba  | 
                            ![]() Transistor Output Optocouplers PCOUPLER GaAs Ired x  | 
                            ![]() Data Sheet  | 
                            ![]() Negotiable  | 
                            
                            	 | 
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![]()  | 
                            ![]() TLP521-1-4  | 
                            ![]() Other  | 
                            ![]()  | 
                            ![]() Data Sheet  | 
                            ![]() Negotiable  | 
                            
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![]()  | 
                            ![]() TLP521-1GB  | 
                            ![]() Other  | 
                            ![]()  | 
                            ![]() Data Sheet  | 
                            ![]() Negotiable  | 
                            
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 (China (Mainland)) 
                         
                        
                                    







