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Specifications
Operating Temperature:
-25℃~+85℃
Load Voltage:
30V
Voltage - Forward(Vf):
1.2V
Rise Time:
8us
Fall Time:
50us
Mfr. Part #:
H21A1
Package:
DIP-4
Key Attributes
Model Number:
H21A1
Product Description
Product Overview
The H21A_ and H22A_ series are single-channel optoelectronic slotted interrupter switches featuring a Gallium Arsenide infrared emitting diode and an NPN silicon phototransistor. Designed for high resolution, efficient coupling, and ambient light rejection, these switches operate by interrupting infrared light transmission with opaque objects, switching the output from 'ON' to 'OFF'.
Product Attributes
- Brand: ISOCOM COMPONENTS LTD
- Model Series: H21A_, H22A_
- Material: Polycarbonate housing
- Origin: England
Technical Specifications
| Model | Parameter | Min | Typ | Max | Units | Test Condition |
| General | Storage Temperature | -40 | 85 | C | ||
| Operating Temperature | -25 | 85 | C | |||
| Lead Soldering Temperature | 260 | C | 1/16 inch (1.6mm) from case for 10 secs | |||
| Gap between LED and Detector | 3 | mm | ||||
| Input Diode | Forward Current | 50 | mA | |||
| Reverse Voltage | 5 | V | ||||
| Power Dissipation | 75 | mW | ||||
| Output Transistor | Collector-emitter Voltage (BVCEO) | 30 | V | |||
| Emitter-collector Voltage (BVECO) | 5 | V | ||||
| Collector Current (IC) | 20 | mA | ||||
| Power Dissipation | 75 | mW | ||||
| Electrical Characteristics (TA=25C) | Input Forward Voltage (VF) | 1.2 | 1.7 | V | IF = 50mA | |
| Reverse Voltage (VR) | 5 | V | IR = 100A | |||
| Reverse Current (IR) | 100 | A | VR = 5V | |||
| Collector-emitter Breakdown (BVCEO) | 30 | V | IC = 1mA | |||
| Emitter-collector Breakdown (BVECO) | 5 | V | IE = 100A | |||
| Collector-emitter Dark Current (ICEO) | 100 | nA | VCE = 10V | |||
| H21A1, H22A1 Coupled On-State Collector Current IC (ON) | 0.15 | mA | IF=5mA, VCE=5V | |||
| H21A2, H22A2 Coupled On-State Collector Current IC (ON) | 0.3 | mA | IF=5mA, VCE=5V | |||
| H21A3, H22A3 Coupled On-State Collector Current IC (ON) | 0.6 | mA | IF=5mA, VCE=5V | |||
| Collector-emitter Saturation Voltage VCE(SAT) (H21A1, H22A1) | 0.4 | V | IF=30mA, IC=1.8mA | |||
| Collector-emitter Saturation Voltage VCE(SAT) (H21A2,3, H22A2,3) | 0.4 | V | IF=20mA, IC=1.8mA | |||
| Turn-on Time (ton) | 8 | s | VCC=5V, IF=30mA, RL=2.5k | |||
| Turn-off Time (toff) | 50 | s | VCC=5V, IF=30mA, RL=2.5k |
Applications
Copiers, Printers, Facsimilies, Record Players, Cassette Decks, Optoelectronic Switches.
2410121904_ISOCOM-H21A1_C90607.pdf
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