Atomfair OECT 369 Optoelectronic Device Comprehensive Tester
Product Overview
The Atomfair OECT 369 Optoelectronic Device Comprehensive Tester is a professional testing instrument designed for researching and analyzing the fundamental characteristics of photodiodes and phototransistors. It integrates precise measurement components, a multi-wavelength light source, and a high-performance illuminance meter, providing reliable and comprehensive testing solutions for professionals in the optoelectronic field. Whether for laboratory research, academic experiments, or industrial quality inspection, this instrument meets the rigorous requirements of optoelectronic device testing with its excellent performance and user-friendly design.
Key Features
- Comprehensive characteristic testing: Capable of conducting in-depth research on key parameters of photodiodes and phototransistors, including photocurrent, dark current, volt-ampere characteristics, time response characteristics, photoelectric characteristics, sensitivity, and spectral characteristics.
- High-precision measurement: Equipped with a voltmeter and ammeter with 0.2% measurement accuracy, ensuring accurate and reliable data collection. Multiple measurement ranges are available for free switching to adapt to different testing scenarios.
- Multi-wavelength light source: Comes with 7 types of light sources (white, red, orange, yellow, green, blue, purple) with specific wavelength ranges, meeting the needs of spectral characteristic testing and multi-condition photoelectric response experiments.
- Advanced illuminance meter: Features high resolution (0.1lx), multiple switchable measurement ranges, and a clear LCD display, enabling precise measurement and monitoring of light intensity during experiments.
- Compact and portable design: With external dimensions of 514mm×314mm×140mm and a weight of ≤4Kg, it is easy to place and move, suitable for various laboratory and on-site testing environments.
Technical Specifications
1. Instrument Host
- External Dimensions: 514mm×314mm×140mm
- Weight: ≤4Kg
- Voltmeter
- Measurement Range: 0~200mV, 0~2V, 0~20V, 0~200V (4 ranges, freely switchable)
- Measurement Accuracy: 0.2%
- Display: 3.5-digit display
- Ammeter
- Measurement Range: 0~200μA, 0~2mA, 0~20mA, 0~200mA (4 ranges, freely switchable)
- Measurement Accuracy: 0.2%
- Display: 3.5-digit display
- Photodiode
- Maximum Operating Voltage: 20V
- Minimum Photocurrent: 50μA
- Maximum Dark Current: 0.1μA
- Maximum Junction Capacitance: 8pF
- Response Time: 10ns
- Peak Wavelength: 880nm
- Phototransistor
- Collector Reverse Bias Voltage: 50V
- Minimum Photocurrent: 5mA
- Maximum Dark Current: 0.1μA
- Maximum Junction Capacitance: 8pF
- Response Time: 15ns
- Peak Wavelength: 880nm
2. Supporting Light Sources
- White Light: Brightness 1000-2500mcd
- Red Light: Wavelength 625nm-630nm
- Orange Light: Wavelength 600nm-605nm
- Yellow Light: Wavelength 585nm-590nm
- Green Light: Wavelength 515nm-520nm
- Blue Light: Wavelength 460nm-465nm
- Purple Light: Wavelength 400nm-405nm
3. Illuminance Meter
- Resolution: 0.1lx
- Measurement Range: 200lx, 2000lx, 20000lx, 50000lx (freely switchable)
- Display: 1999-digit LCD display with low battery indicator
- Reading Rules: For 2000lx range, reading ×10; for 50000lx range, reading ×100
- Measurement Accuracy: Under 2856K white light standard, ±5% rdg±10gdts for ranges ≤10000lx; ±10% rdg±10gdts for ranges >10000lx
- Dimensions: 65mm×188mm×25mm
- Sampling Rate: 1.5 times/second
- Linearity: ±2%
Applications
- Academic research: Ideal for universities and research institutions to conduct experiments and research on optoelectronic devices, helping students and researchers deeply understand the working principles and characteristics of photodiodes and phototransistors.
- Industrial testing: Suitable for quality inspection and performance testing of photodiodes and phototransistors in optoelectronic product manufacturing, ensuring product quality and stability.
- Laboratory experiments: Widely used in electronic and optoelectronic laboratories for various characteristic testing experiments of optoelectronic devices, providing accurate data support for scientific research projects.
Notes
The configuration and parameters of this product are for reference only. Please refer to the packing list for the actual product. The manufacturer reserves the right to make minor optimizations and adjustments to the product without prior notice.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
How do the response times and photocurrent levels compare between the photodiode and phototransistor in the Atomfair OECT 369?
The photodiode has a faster response time of 10 ns with a minimum photocurrent of 50 μA, while the phototransistor has a slower 15 ns response but a significantly higher minimum photocurrent of 5 mA. Both devices share the same maximum dark current (0.1 μA) and junction capacitance (8 pF). The phototransistor is better suited for applications requiring higher current drive, whereas the photodiode offers faster temporal response.
Can the Atomfair OECT 369 accurately characterize photodetectors with peak sensitivity outside the provided visible light wavelengths?
The instrument includes seven visible-wavelength LEDs (400–630 nm) and an integrated photodiode and phototransistor with peak wavelength at 880 nm. For devices with peak sensitivity outside the 400–630 nm source range, the tester may not achieve optimal spectral characterization because the supporting light sources cover only the visible spectrum. The instrument is best suited for devices that can be effectively excited by visible light.
What is the measurement accuracy of the illuminance meter when used with non-white light sources?
The illuminance meter's specified accuracy (±5% rdg±10gdts for ranges up to 10,000 lx; ±10% rdg±10gdts above) is calibrated under a 2856 K white light standard. When used with colored LEDs (e.g., 460 nm blue or 625 nm red), the accuracy is not guaranteed and may degrade due to spectral mismatch. The meter has a resolution of 0.1 lx and linearity of ±2%, but calibration assumes white-light spectral distribution.
The Atomfair OECT 369 integrates a 0.2%-accuracy voltmeter/ammeter, a seven-wavelength LED source, and a 0.1-lx resolution illuminance meter into a single portable chassis, enabling comprehensive photodiode and phototransistor characterization (including spectral response and time-domain behavior) without external instrumentation. Its 4 kg weight and 514×314×140 mm footprint support benchtop and field deployment, while the 50 V collector bias and 10–15 ns response times accommodate a broad range of device testing scenarios.
Positive
- Integrated multi-wavelength spectral testing: Seven switchable LED sources (400–630 nm plus white) enable spectral response and multi-condition photoelectric characterization of photodiodes and phototransistors in a single benchtop unit, eliminating the need for external monochromators or filter wheels.
- High-accuracy electrical measurement: Both the voltmeter and ammeter provide 0.2% measurement accuracy across four auto-switchable ranges (voltage up to 200 V, current up to 200 mA), ensuring reliable and repeatable I-V and dark-current data for quantitative device analysis.
Trade-offs
- Illuminance accuracy limited to specific conditions: The illuminance meter's specified accuracy (±5% rdg±10gdts) is only guaranteed under a 2856K white-light standard; deviations should be expected when using other LED wavelengths or non-standard light sources, which may affect absolute light-intensity calibration in spectral experiments.
- Manual range reading corrections required: For the 2000 lx and 50000 lx ranges, the displayed reading must be manually multiplied by ×10 or ×100 respectively, introducing potential operator error during high-intensity measurements if the scaling factor is overlooked.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
