< >

APD430 Free-Space APD Photodetector (Si/InGaAs) - 10M-400MHz | Thorlabs Alternative

APD430 free-space InGaAs APD photodetector Bandwidth 10M to 400M, suitable for detecting nW optical power from 400-1700nm with noise down to 20mV

Model：APD430

Tags： APD430 Free-Space APD Photodetector InGaAs APD Si APD 10M-400MHz APD Thorlabs Alternative APD LiDAR Photodetector Weak Light Detection APD

Contact： face

Huang Email: Hqy@ybphotonics.com

WhatsApp： +8613427781756 Web | App

Get a Quote Manual：

Download>>

Product Overview

The APD430 series free-space APD photodetector is a high-performance optical detection module available in Si (400-1100nm) and InGaAs (1000-1700nm) versions, with a bandwidth range of DC-10MHz to DC-400MHz. It is a direct alternative to Thorlabs equivalent models with matching technical parameters, and is optimized for free-space optical detection applications such as weak light signal sensing and laser radar (LiDAR/TOF).

Core Selling Points

Thorlabs Compatible: Drop-in replacement for same-parameter Thorlabs APD photodetectors
90% In-Stock: Immediate delivery for most models, only a few custom models need 3-week lead time
Free Global Shipping: No extra shipping cost to any country/region worldwide
Free Accessories: SMA to BNC RF cable + power supply included with every purchase
Customizable: Support parameter customization (e.g., bandwidth) for bulk orders
High Performance: Low noise (20mVpp), temperature compensation, optional adjustable gain

Key Features

Wide wavelength coverage: Si (400-1100nm) / InGaAs (1000-1700nm) for visible/near-infrared detection
Ultra-wide bandwidth: DC-10MHz to DC-400MHz, matching diverse application requirements
Temperature compensation for stable performance in harsh environmental conditions
Optional adjustable gain to adapt to different light intensity detection scenarios
Standard 30mm optical cage system for easy integration with optical setups
Low noise voltage: 20mVpp for all models, ideal for weak light signal detection
50Ω output impedance, SMA female output connector (industry standard)
Wide operating temperature range: -10℃ ~ 65℃, suitable for industrial/experimental use
Compact mechanical design, easy to install and integrate into custom optical systems

Appliations

Detecting weak light signals
laser radar

Technical Specifications

Items	APD430A-10M	APD430A-50M	APD430A-200M	APD430A-400M
Materials	Si
Wavelength	400-1100nm
Photosensitive diameter	500um		230um
Responsivity	0.55A/W @ 905nm (M = 1)
Bandwidth（a）	DC-10MHz	DC-50MHz	DC-200MHz	DC-400MHz
Rise time（a）	40ns	8ns	2ns	1ns
Gain（b）	1.4x10^7V/W	2.7x10^6V/W	1.2x10^6V/W	0.52x10^6V/W
Saturated Optical power	0.23uW	1.3uW	2.5uW	5.8uW
Noise voltage（a）	20mVpp	20mVpp	20mVpp	20mVpp
Maximum Output Voltage（b）	3.2V	3.2V	3.2V	3.2V
NEP	0.11pW/√Hz	0.23pW/√Hz	0.28pW/√Hz	0.64pW/√Hz

Items	APD430C-10M	APD430C-50M	APD430C-200M	APD430C-400M
Materials	InGaAs
Wavelength	1000-1700nm
Photosensitive diameter	500um		200um
Responsivity	0.9A/W @ 1550nm (M = 1)
Bandwidth（a）	DC-10MHz	DC-50MHz	DC-200MHz	DC-400MHz
Rise time（a）	40ns	8ns	2ns	1ns
Gain（b）	3.2x10^6V/W	0.65x10^6V/W	4.0x10^5V/W	1.8x10^5V/W
Saturated Optical power	0.98uW	4.8uW	8uW	16.7uW
Noise voltage（a）	20mVpp	20mVpp	20mVpp	20mVpp
Maximum Output Voltage（b）	3.2V	3.2V	3.2V	3.2V
NEP	0.42pW/√Hz	0.71pW/√Hz	0.84pW/√Hz	1.8pW/√Hz

Items	APD430C-1mm3
Materials	InGaAs
Wavelength	1000-1700nm
Photosensitive diameter	1mm
Responsivity	0.9A/W @ 1550nm (M = 1)
Bandwidth（a）	DC-80MHz
Rise time（a）	4.5ns
Gain（b）	4x10^5V/W
Saturated Optical power	8uW
Noise voltage（a）	20mVpp
Maximum Output Voltage（b）	3.2V

Params	Detector Common Parameters
Operating voltage	9V
Operating Current	<200mA
Output Impedance	50Ω
Output coupling mode	DC
Output connector	SMA female
Operating temperature	-10~65℃
Storage temperature	-40~85℃

Remarks:
a For 50Ω loads
b For high resistance loads

Responsivity

Mechanical Drawing

APD430C oscilloscope screenshot

Custom Parameters

In addition to our standard products, we can also provide customized parameter services for our customers (provided you have multiple quantity purchase requirements)； Below is an example of the parameters we customized for our customers, testing the parameters at 35M bandwidth.

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.