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PD510U Adjustable Gain Silicon Photodetector - 2.4x2.4mm, 190-1100nm

PD510U is a high-performance low-noise adjustable gain silicon photodetector designed for free-space optical systems, featuring a 2.4x2.4mm photosensitive area and 190-1100nm broad wavelength response. Equipped with 8 adjustable gain and bandwidth gears, integrated amplifier and SMA female output, it delivers stable and precise photodetection for optical instruments and scientific research.

Model：PD510U

Tags： PD510U photodetector adjustable gain photodetector 2.4x2.4mm photodetector 190-1100nm detector silicon photodetector low noise photodetector free-space optical detector 8 gears photodetector

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Huang Email: Hqy@ybphotonics.com

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Product Overview

PD510U is a professional low-noise silicon photodetector with integrated high-performance amplification circuitry, exclusively engineered for free-space optical systems and precision optical detection applications. Boasting a 2.4x2.4mm photosensitive area and an ultra-broad spectral response range of 190-1100nm, this detector is integrated with a transimpedance amplifier, driver stage amplifier and high-frequency RF connector, all optimized for minimal size and maximum frequency response performance. What sets the PD510U apart is its 8 adjustable gears for gain and bandwidth, enabling flexible parameter adjustment to match diverse optical detection requirements from high-speed signal capture to ultra-weak light detection. With a standard SMA female output, 50Ω impedance matching and DC coupling, the PD510U ensures seamless integration into various optical instruments, laboratory setups and research systems, providing consistent, low-noise and high-precision photoelectric conversion for industrial and academic applications.

Key Features

8 adjustable gain/bandwidth gears for flexible application matching
Ultra-broad wavelength response: 190-1100nm for multi-scenario detection
2.4x2.4mm silicon photosensitive area with high light collection efficiency
Low noise design for ultra-weak optical signal detection
Integrated transimpedance & driver stage amplifier for optimized performance
SMA female output connector for high-frequency signal transmission
50Ω output impedance with DC coupling for standard system matching
High maximum output amplitude (10V) for strong signal output
Wide operating temperature range (-20~65℃) for stable industrial/research use
Compact design for easy integration into free-space optical systemsApplications：
Precision optical instruments and metering equipment
Academic and industrial scientific research experiments
Free-space optical communication system detection
Ultra-weak light signal measurement and analysis
High-speed optical pulse detection and capture
Laboratory optical testing and research setups
Industrial optical sensing and non-contact detection
Photometry and light intensity analysis applications

Specifications

Core Common Parameters

Parameter	Typical Value
Core Material	Silicon (Si)
Wavelength Range	190-1100nm
Photosensitive Area Size	2.4×2.4mm
Responsivity	0.5A/W @940nm
Maximum Output Amplitude (High-res load)	10V
Operating Voltage	±12V
Operating Current	100mA
Output Impedance	50Ω
Output Coupling Mode	DC
Output Connector	SMA female
Operating Temperature	-20~65℃
Storage Temperature	-40~85℃

8 Adjustable Gain & Bandwidth Gears Parameters

Gear	Gain (High-res load)	Bandwidth (50Ω load)	Noise Voltage (50Ω load)	Noise Equivalent Power	Output Bias Voltage (High-res load)	Rise Time
0dB	0.9×10³ V/W	DC-11MHz	2mV	70.1pW/√Hz	5mV	32ns
10dB	2.90×10³ V/W	DC-1.3MHz	2mV	28.1pW/√Hz	5mV	270ns
20dB	0.9×10⁴ V/W	DC-1.4MHz	2mV	9.1pW/√Hz	5mV	250ns
30dB	2.9×10⁴ V/W	DC-430kHz	2mV	6.3pW/√Hz	5mV	800ns
40dB	0.9×10⁵ V/W	DC-110kHz	2mV	4.1pW/√Hz	5mV	3.2μs
50dB	2.9×10⁵ V/W	DC-40kHz	3mV	2.8pW/√Hz	5mV	8.7μs
60dB	0.9×10⁶ V/W	DC-11kHz	4mV	2.2pW/√Hz	5mV	32μs
70dB	2.9×10⁶ V/W	DC-4kHz	5mV	1.9pW/√Hz	5mV	87μs

Response Curve

FAQ

Q：Do you have an unboxing picture of the photodetector?

A：When you buy our photodetectors, we will deliver SMA to BNC RF cable, and power supply for free.
Q: What are the advantages of your photodetectors compared to Thorlabs?
A: We support custom development and we offer better prices.
Q: What is the lead time for photodetector modules?
A: Basically, we have more than 90% of detectors in stock, only a few models need 3 weeks lead time.
Q: Do you support the sale of those countries, and is the shipping included?
A: Our service is available worldwide, regardless of country or region. Shipping is included.
Q: Who are your typical customers?
A: More than 100 top universities and research institutes in China have chosen us and given us high evaluations, such as: Chinese Academy of Sciences, CEC, Tsinghua University, Peking University and other clients.