H21A1 FAIRCHILD | Alldatasheet

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Technical content

D 0.129 (3.3) 0.119 (3.0) 0.433 (11.0) 0.422 (10.7) 0.315 (8.0) 0.110 (2.8) 0.091 (2.3) 0.020 (0.51) (SQ) 0.472 (12.0) 0.457 (11.6) 0.249 (6.35) 0.243 (6.15) 0.39 (1.00) 0.34 (0.85) 0.125 (3.2) 0.119 (3.0) Ø 0.133 (3.4) Ø 0.126 (3.2) (2X) 0.755 (19.2) 0.745 (18.9) LC CL LC Optical CL 0.972 (24.7) 0.957 (24.3) .295 (7.5) .272 (6.9) PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 EMITTER .073 (1.85) .133 (3.38) 1. Derate power dissipation linearly 1.33 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. PACKAGE DIMENSIONS

FEATURES

  • Opaque housing
  • Low cost
  • .035” apertures
  • High I C(ON) 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) TSOL-I 240 for 5 sec °C Soldering Temperature (Flow)(2 and 3) TSOL-F 260 for 10 sec °C INPUT (EMITTER) Continuous Forward Current IF 50 mA Reverse Voltage V R 6V Power Dissipation (1) PD 100 mW OUTPUT (SENSOR) Collector to Emitter Voltage VCEO 30 V Emitter to Collector Voltage V ECO 4.5 V Collector Current I C 20 mA Power Dissipation (TC = 25°C)(1) PD 150 mW ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified. H21A1 / H21A2 / H21A3 PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH

DESCRIPTION

The H21A1, H21A2 and H21A3 consist of a gallium arsenide infrared emitting diode coupled with a silicon phototransistor 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. SCHEMATIC  2001 Fairchild Semiconductor Corporation DS300290 5/02/01 1 OF 5 www.fairchildsemi.com

www.fairchildsemi.com 2 OF 5 5/02/01 DS300290 PARAMETER TEST CONDITIONS SYMBOL DEVICES MIN TYP MAX UNITS INPUT (EMITTER) Forward Voltage IF = 60 mA V F All — — 1.7 V Reverse Breakdown Voltage I R = 10 µAV R All 6.0 — — V Reverse Leakage Current V R = 3 V I R All — — 1.0 µA OUTPUT (SENSOR) Emitter to Collector Breakdown IF = 100 µA, Ee = 0 BV ECO All 6.0 — — V Collector to Emitter Breakdown I C = 1 mA, Ee = 0 BV CEO All 30 — — V Collector to Emitter Leakage V CE = 25 V, Ee = 0 I CEO All — — 100 nA COUPLED H21A1 0.15 — — IF = 5 mA, VCE = 5 V H21A2 0.30 —— H21A3 0.60 —— H21A1 1.0 — — On-State Collector Current I F = 20 mA, VCE = 5 V I C(ON) H21A2 2.0 — — mA H21A3 4.0 — — H21A1 1.9 — — IF = 30 mA, VCE = 5 V H21A2 3.0 — — H21A3 5.5 — — Saturation Voltage IF = 20 mA, IC = 1.8 mA VCE(SAT) H21A2/3 — — 0.40 V IF = 30 mA, IC = 1.8 mA H21A1 — — 0.40 V Turn-On Time IF = 30 mA, VCC = 5 V, RL = 2.5 KΩ ton All —8 — µ s Turn-Off Time IF = 30 mA, VCC = 5 V, RL = 2.5 KΩ toff All —5 0 —µ s ELECTRICAL / OPTICAL CHARACTERISTICS (TA =25°C)(All measurements made under pulse condition) H21A1 / H21A2 / H21A3 PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. DS300290 5/02/01 5 OF 5 www.fairchildsemi.com H21A1 / H21A2 / H21A3 PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH