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Specifications
Mfr. Part #:
H21A2
Package:
DIP-4
Key Attributes
Model Number:
H21A2
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. These switches operate by interrupting infrared light transmission with opaque objects, switching the output from ON to OFF. Designed for high gain and excellent ambient light rejection, they are housed in a polycarbonate case for enhanced reliability and cost-effectiveness. The devices offer a 3mm gap between the LED and detector, making them suitable for various automated and sensing applications.
Product Attributes
- Brand: ISOCOM COMPONENTS LTD
- Material: Polycarbonate case
- Type: Opto-electronic single channel slotted interrupter switches
- Sensor Type: Transistor Sensors
- Origin: England (implied by contact details)
Technical Specifications
| Model | Parameter | Min | Typ | Max | Units | Test Condition |
| Absolute Maximum Ratings | 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) | |||
| Input Diode Power Dissipation | 75 | mW | (25C unless otherwise specified) | |||
| 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 Unless otherwise noted) | Input Forward Voltage (VF) | 1.2 | 1.7 | V | IF = 50mA | |
| Input Reverse Voltage (VR) | 5 | V | IR = 100A | |||
| Input Reverse Current (IR) | 100 | A | VR = 5V | |||
| Output Collector-emitter Breakdown (BVCEO) | 30 | V | IC = 1mA | |||
| Output Emitter-collector Breakdown (BVECO) | 5 | V | IE = 100A | |||
| Output Collector-emitter Dark Current (ICEO) | 100 | nA | VCE = 10V | |||
| 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 | |||
| 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 | |||
| Coupled On-State Collector Current (IC(ON)) Note 1 | H21A1, H22A1 | 0.15 | mA | IF = 5mA, VCE = 5V | ||
| H21A1, H22A1 | 1.0 | mA | IF = 20mA, VCE = 5V | |||
| H21A1, H22A1 | 1.9 | mA | IF = 30mA, VCE = 5V | |||
| H21A2, H22A2 | 0.3 | mA | IF = 5mA, VCE = 5V | |||
| H21A2, H22A2 | 2.0 | mA | IF = 20mA, VCE = 5V | |||
| H21A2, H22A2 | 3.0 | mA | IF = 30mA, VCE = 5V | |||
| H21A3, H22A3 | 0.6 | mA | IF = 5mA, VCE = 5V | |||
| H21A3, H22A3 | 4.0 | mA | IF = 20mA, VCE = 5V | |||
| H21A3, H22A3 | 5.5 | mA | IF = 30mA, VCE = 5V |
2410121904_ISOCOM-H21A2_C150417.pdf
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