Datasheet > H21B3

H21B3

更新时间： 2024-11-17 22:33:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关
页数	文件大小	规格书
6页	379K
描述
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH

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数据手册
替代型号

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H21B3 数据手册

PHOTODARLINGTON

OPTICAL INTERRUPTER SWITCH

H21B1

H21B2

H21B3

PACKAGE DIMENSIONS

0.972 (24.7)

0.957 (24.3)

Ø 0.133 (3.4)

0.472 (12.0)

Ø 0.126 (3.2)

0.457 (11.6)

(2X)

0.249 (6.35)

0.243 (6.15)

0.39 (1.00)

0.34 (0.85)

0.755 (19.2)

0.745 (18.9)

0.129 (3.3)

0.119 (3.0)

0.103 (2.60) NOM

Optical

0.433 (11.0)

0.422 (10.7)

0.125 (3.2)

0.119 (3.0)

0.315 (8.0)

SCHEMATIC

.295 (7.5)

.272 (6.9)

0.110 (2.8)

0.091 (2.3)

PIN 1 ANODE

PIN 2 CATHODE

PIN 3 COLLECTOR

PIN 4 EMITTER

0.020 (0.51) (SQ)

NOTES:

1. Dimensions for all drawings are in inches (mm).

2. Tolerance of .010 (.25) on all nonꢀnominal dimensions ꢁnless

otherwise speciﬁed.

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 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.

FEATURES

•

Opaque housing

Low cost

.035" apertures

High I

C(ON)

Page 1 of 6

6/13/02

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H21B3 替代型号

型号	品牌	替代类型	描述	数据表
OPB853A1	TTELEC	功能相似	Slotted Optical Switch

与H21B3相关器件

型号	品牌	获取价格	描述	数据表
H21B3G	ISOCOM	获取价格	Darlington Output Slotted Switch
H21B4	FAIRCHILD	获取价格	PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B4	QT	获取价格	SLOTTED OPTICAL SWITCH
H21B4G	ISOCOM	获取价格	Darlington Output Slotted Switch
H21B5	FAIRCHILD	获取价格	PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B5	QT	获取价格	SLOTTED OPTICAL SWITCH
H21B5G	ISOCOM	获取价格	Darlington Output Slotted Switch
H21B6	FAIRCHILD	获取价格	PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B6	QT	获取价格	SLOTTED OPTICAL SWITCH
H21B6G	ISOCOM	获取价格	Darlington Output Slotted Switch