9icnet provides you with H21B4 designed and produced by onsemi, which is sold in 9icnet on the spot, and can be purchased through channels such as the original factory and agents. H21B4 price reference $24.410734. onsemi H21B4 Package/Specification: SENSOR OPT SLOT DARL PC PINS. You can download H21B4 english data, pin diagram, Datasheet data sheet function manual, the data contains detailed pin diagrams of diode rectifiers, application circuit diagrams of functions, voltages, usage methods and tutorials.
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The H21B1 is SENSOR OPTO SLOT 3MM DARL THRU, that includes Tube Packaging, they are designed to operate with a PCB Mount Package Case, it has an Operating Temperature range of -55°C ~ 100°C, that offers Mounting Type features such as Through Hole, Sensing Method is designed to work in Transmissive, as well as the Photodarlington Output Configuration, the device can also be used as 50mA Current DC Forward If Max. In addition, the Current Collector Ic Max is 40mA, the device is offered in 30V Voltage Collector Emitter Breakdown Max, the device has a 7μs, 45μs of Response Time, and Sensing Distance is 0.118" (3mm).
The H21B2 is SENSOR OPTO SLOT 3MM DARL THRU, that includes 30V Voltage Collector Emitter Breakdown Max, they are designed to operate with a Transmissive Sensing Method, Sensing Distance is shown on datasheet note for use in a 0.118" (3mm), that offers Response Time features such as 7μs, 45μs, Packaging is designed to work in Tube, as well as the PCB Mount Package Case, the device can also be used as Photodarlington Output Configuration, it has an Operating Temperature range of -55°C ~ 100°C, the device is offered in Through Hole Mounting Type, the device has a 50mA of Current DC Forward If Max, and Current Collector Ic Max is 40mA.
The H21B3 is SENSOR OPTO SLOT 3MM DARL THRU, that includes 40mA Current Collector Ic Max, they are designed to operate with a 50mA Current DC Forward If Max, Mounting Type is shown on datasheet note for use in a Through Hole, it has an Operating Temperature range of -55°C ~ 100°C, Output Configuration is designed to work in Photodarlington, as well as the PCB Mount Package Case, the device can also be used as Tube Packaging. In addition, the Response Time is 7μs, 45μs, the device is offered in 0.118" (3mm) Sensing Distance, the device has a Transmissive of Sensing Method, and Voltage Collector Emitter Breakdown Max is 30V.