OPTEK OPB739RWZ reflective line reader sensor featuring converging optical axes and phototransistor output
OPB739RWZ Reflective Line Reader Sensor
The OPB739RWZ is a high-performance reflective line reader sensor designed for precise line detection. It features a visible red (650nm) LED and an NPN silicon phototransistor with converging optical axes, enabling it to detect line widths as small as 0.004" [0.1mm] at an optimal distance of 0.030" [0.76mm]. The sensor's design maximizes reflected signal contrast for black lines on white backgrounds, making it ideal for applications such as line reading, low-resolution bar code sensing, paper edge detection, mark detection, and reflective optical encoders. It offers focused sensitivity, a phototransistor output, and a low-cost plastic housing. The OPB739RWZ can be used with Optek's OCB100CZ auto calibration module for reduced variability and digital output. Custom electrical configurations are available upon request.
Product Attributes
- Brand: Optek
- Material: Black plastic housing
- Certifications: RoHS
Technical Specifications
| Parameter | Value | Unit | Conditions |
| LED Forward DC Current | 40 | mA | |
| LED Reverse DC Voltage | 2 | V | |
| LED Power Dissipation | 100 | mW | |
| Phototransistor Collector-Emitter Voltage | 30 | V | |
| Phototransistor Emitter-Collector Voltage | 5 | V | |
| Phototransistor Power Dissipation | 100 | mW | |
| LED Forward Voltage (VF) | 1.2 to 2.3 | V | IF = 20 mA |
| LED Peak Emission Wavelength (P) | 650 | nm | IF = 20mA |
| Phototransistor Collector Emitter Breakdown Voltage (V(BR)CE0) | 30 | V | IC = 100 A |
| Phototransistor Emitter Collector Breakdown Voltage (V(BR)ECO) | 5 | V | IE = 100 A |
| Phototransistor Collector Dark Current (ICEO) | 100 | nA | VCE = 10 V, IF = 0 |
| Phototransistor Rise Time (Tr) | 300 | s | VCE = 5 Volts, IC = 1 mA, RL = 20K |
| Phototransistor Fall Time (Tf) | 300 | s | VCE = 5 Volts, IC = 1 mA, RL = 20K |
| On-State Collector Current (IC(ON)) | 0.25 | mA | d = 0.030, IF = 20 mA, VCE = 5 V |
| Collector Emitter Saturation Voltage (VCE(SAT)) | 0.4 | V | d = 0.030, IC = 50 A, IF = 20 mA |
| Crosstalk Collector Current (ICX) | 0.05 | mA | IF = 20 mA, VCE = 5 V, No reflective test surface |
| Storage and Operating Temperature Range | -40 to +85 | C |
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