H21B2

Series: -
Sensing Distance: 0.118" (3mm)
Sensing Method: Transmissive
Mounting Type: Through Hole
Package / Case: PCB Mount
Packaging: Tube
Voltage - Collector Emitter Breakdown (Max): 30V
Current - DC Forward (If): 50mA
Output Configuration: Photodarlington
Manufacturer: Fairchild Optoelectronics Group
Current - Collector (Ic) (Max): 40mA
Response Time: 7µs, 45µs


Features:

• Opaque housing
• Low cost
• .035" apertures
• High I _C(ON)


Specifications

Parameter	Symbol	Rating	Unit
Operating Temperature	T OPR	-55 to +100	°C
Storage Temperature	T STG	-55 to +100	°C
Soldering Temperature (Iron) (2,3 and 4)	T SOL-I	240 for 5 sec	°C
Soldering Temperature (Flow) (2 and 3)	T SOL-F	260 for 10 sec	°C
INPUT (EMITTER) Continuous Forward Current	IF	50	mA
Reverse Voltage	VR	6	V
Power Dissipation (1)	PD	100	mW
OUTPUT (SENSOR) Collector to Emitter Voltage	V CEO	30	V
Emitter to Collector Voltage	V ECO	6	V
Collector Current	IC	40	mA
Power Dissipation (TC = 25°C) (1)	PD	150	mW

1. Derate power dissipation linearly 1.67 mW/°C above 25°C.
2. RMA flux is recommended.
3. Methanol or isopropyl alcohols are recommended as cleaning agents.
4. Soldering iron tip 1/16" (1.6mm) minimum from housing.


Description

The H21B1, H21B2 and H21B3 consist of a gallium arsenide infrared emitting diode coupled with a silicon photodarlington in a plastic housing. The packaging system of H21B1, H21B2 and H21B3  is designed to optimize the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability. The gap in the housing provides a means of interrupting the signal with an opaque material, switching the output from an "ON" to an "OFF" state

Parameters:

Technical/Catalog Information	H21B2
Vendor	Fairchild Optoelectronics Group
Category	Sensors, Transducers
Sensing Distance	0.119" (3mm)
Sensing Method	Transmissive
Package / Case	PCB Mount
Output Type	Photo Darlington
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	H21B2 H21B2