Datasheet H21B1, H21B2, H21B3 (Fairchild)
| Hersteller | Fairchild |
| Beschreibung | Photodarlington Optical Interrupter Switch |
| Seiten / Seite | 6 / 1 — PHOTODARLINGTON. OPTICAL INTERRUPTER SWITCH. H21B1 H21B2 H21B3. PACKAGE … |
| Dateiformat / Größe | PDF / 393 Kb |
| Dokumentensprache | Englisch |
PHOTODARLINGTON. OPTICAL INTERRUPTER SWITCH. H21B1 H21B2 H21B3. PACKAGE DIMENSIONS. SCHEMATIC. DESCRIPTION. FEATURES
Modelllinie für dieses Datenblatt
Textversion des Dokuments
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) CL + D 0.249 (6.35) 0.243 (6.15) L C E + 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 C 0.433 (11.0) L 0.422 (10.7) 0.125 (3.2) 0.315 (8.0) 0.119 (3.0)
SCHEMATIC
L C .295 (7.5) 0.110 (2.8) .272 (6.9) 0.091 (2.3) PIN 1 ANODE 4 PIN 2 CATHODE 1 2 3 PIN 3 COLLECTOR 1 4 PIN 4 EMITTER 0.020 (0.51) (SQ) NOTES: 2 3 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless 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 IC(ON) © 2002 Fairchild Semiconductor Corporation Page 1 of 6 6/13/02
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) CL + D 0.249 (6.35) 0.243 (6.15) L C E + 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 C 0.433 (11.0) L 0.422 (10.7) 0.125 (3.2) 0.315 (8.0) 0.119 (3.0)
SCHEMATIC
L C .295 (7.5) 0.110 (2.8) .272 (6.9) 0.091 (2.3) PIN 1 ANODE 4 PIN 2 CATHODE 1 2 3 PIN 3 COLLECTOR 1 4 PIN 4 EMITTER 0.020 (0.51) (SQ) NOTES: 2 3 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless 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 IC(ON) © 2002 Fairchild Semiconductor Corporation Page 1 of 6 6/13/02