TLP521-1X

Transistor, Photovoltaic Output OptoisolatorsDIP4

PHOTO TRANSISTOR OPTOCOUPLER 1 CH 5000V RMS 4DIP

TLP521-1X is a single-channel transistor output optocoupler in DIP4 package, with 5000V RMS isolation voltage, operating temperature -40°C to +105°C, and UL/VDE approvals.Checked against the datasheet

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Technical parameters

Key specs

Channels1

Isolation voltage5 kV

Output typeTransistor

Current transfer ratio50 ~ 600 %Max 600% (IF = 5mA，VCE = 5V)

Datasheet-verified parameters

20 items

Parameter	Value and test conditions	Source
Channels	1
AC Isolation Voltage	5000V RMS
Output Type	NPN silicon photo transistor
Current Transfer Ratio	Min 50%, Max 600% (IF = 5mA, VCE = 5V)
Package	DIP4
Operating Temperature	-40°C to +105°C
Grade	UL and VDE approvals
RoHS	Compliant
Forward Voltage	Typ 1.2V, Max 1.4V (IF = 20mA)
Reverse Leakage	Max 10μA (VR = 4V)
Collector-Emitter Saturation Voltage	Typ 0.1V, Max 0.2V (IF = 20mA, IC = 1mA)
Cut-Off Frequency	Typ 80kHz (VCE = 5V, IC = 2mA, RL = 100Ω)
Output Rise Time	Typ 4μs, Max 18μs (VCC = 5V, IC = 2mA, RL = 100Ω)
Output Fall Time	Typ 3μs, Max 18μs (VCC = 5V, IC = 2mA, RL = 100Ω)
Input Forward Current	Max 50mA
Peak Forward Current	Max 1A (100μs, 100Hz)
Reverse Voltage	Max 6V
Power dissipation	Max 70mW
Junction Temperature	Max 125°C
Certification	UL File E91231, VDE Approval Certificate No. 40028086

All parameters (7)ExpandCollapse

Power
AC Isolation Voltage	5000V RMS
Collector Current	50mA
Collector to Emitter Voltage VCEO	55V
Current Transfer Ratio	50 % (Min)
Input Forward Current	50mA
Environment and package
Operating Temperature	-55 to 110 °C
Package	Dual In Line Plastic Package

Pinout and package

Pin	Name	Function	Source
1		Anode
2		Cathode
3		Emitter
4		Collector

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DatasheetDatasheet · 2.8 MB · 2026-11-03

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