2mm InGaAs PIN Photodiode TO5

Product Overview-2mm InGaAs PIN Photodiode TO5

The 2mm InGaAs PIN Photodiode TO5 (Model: BPD-2STO5B-FW) from Box Optronics is a high-performance near-infrared (NIR) photodetector designed for optical power measurement, fiber optic test and measurement, optical sensing, and spectroscopy applications. Based on a reliable PIN photodiode structure, it converts incident optical signals from 900nm to 1650nm into proportional photocurrent with excellent linearity, high responsivity, and stable long-term performance.

The large detection area makes it particularly suitable for free-space optical detection, collimated beam measurement, and applications where efficient optical coupling and easy alignment are required.

The compact TO5 package design enables easy integration into optical instruments and photonic measurement equipment.

Key Features-2mm InGaAs PIN Photodiode TO5

· Large active area diameter: 2mm for superior light collection and alignment tolerance

· Wide spectral response range: 900nm to 1650nm

· High responsivity: 0.9A/W typical at 1310nm, 0.95A/W typical at 1550nm

· Low dark current for high-sensitivity weak signal detection

· Low junction capacitance for fast response and wide bandwidth

· High reliability and long-term stability

· Hermetic TO5 flat-window metal package

Typical Applications-2mm InGaAs PIN Photodiode TO5

· Optical power meters and optical power monitoring modules

· Fiber optic test and measurement equipment

· Optical signal detection and power monitoring systems

· Near-infrared (NIR) spectroscopy and analytical instruments

· Laser power monitoring and control systems

· Free-space optical detection and optical sensing systems

· Optical attenuator calibration and characterization

· Photonics research and laboratory instrumentation

Technical Specifications-2mm InGaAs PIN Photodiode TO5

Absolute Maximum Ratings (TC = 25°C)

Electro-Optical Characteristics (TC = 25°C)

Why Choose Box Optronics 2mm InGaAs PIN Photodiode?

· Consistent performance and reliability

· Strict quality control

· Competitive pricing

· Flexible MOQ — supports both small R&D quantities and volume production orders

· International shipping via DHL/UPS/FedEx with full tracking

Package Dimensions and Pin Definition-2mm InGaAs PIN Photodiode TO5

Ordering Information-2mm InGaAs PIN Photodiode TO5

Model Nomenclature

BPD - X X TO XX - X - X

Example: BPD-2STO5B-FW

Frequently Asked Questions (FAQ)-2mm InGaAs PIN Photodiode TO5

Q: What is the difference between 1mm and 2mm active area photodiodes?

A: The core distinction between the two devices is the size of their active areas.

The 2mm InGaAs PD features a larger light collection area and better alignment tolerance, making it ideal for free-space optical detection and applications involving larger beam diameters.

The 1mm PD typically features lower junction capacitance, enabling higher bandwidth and faster transient response.

Device selection should be based on key application requirements, including light collection efficiency, alignment tolerance, and response speed.

Q: What reverse voltage should I apply?

A: The recommended operating reverse voltage is typically -5V for this photodiode. Applying reverse bias reduces junction capacitance and increases the depletion region, which helps improve bandwidth and carrier collection efficiency.

However, excessive reverse voltage may increase dark current and noise. For most applications, -5V provides a good balance between speed, sensitivity, and noise performance.

Q: Can this photodiode be used for 1550nm applications?

A: Yes. The BPD-2STO5B-FW has a spectral range of 900–1650nm and delivers high responsivity (0.95A/W typical) at 1550nm, making it well-suited for C-band optical communication and sensing applications.

Q: Is the TO5 package hermetically sealed?

A: Yes, the TO5 package is hermetically sealed with a metal can and flat glass window, providing protection against moisture, dust, and environmental contaminants. This ensures reliable long-term operation in various environments.

Q: What is the minimum order quantity (MOQ)?

A: The MOQ for 2mm InGaAs PIN Photodiode TO5 is 1 unit. We support flexible order quantities. For standard models, we can supply from just a few pieces for R&D and prototyping up to thousands of units for volume production. Contact us for specific pricing at your required quantity.

Q: Do you provide datasheet support?

A: Yes, a full datasheet is available for download.

Datasheet-2mm InGaAs PIN Photodiode TO5

Datasheet

Lead Time-2mm InGaAs PIN Photodiode TO5

· Standard units (in-stock models): 3~5 working days

· Standard production: 10~15 working days

· Volume orders: Please contact for production schedule

· International shipping: ~5 working days (DHL/UPS/FedEx express)

· Expedited service: Available upon request

Operation Notes and Handling-2mm InGaAs PIN Photodiode TO5

· Photodiodes are electrostatic discharge (ESD) sensitive devices. Proper ESD protection procedures should always be followed during handling.

· Avoid touching the leads and optical window directly with bare fingers to prevent contamination and potential ESD damage.

· Store unused devices in ESD-safe packaging or conductive trays to minimize the risk of electrostatic discharge damage.

· Do not exceed the absolute maximum ratings specified in the datasheet

· If contamination occurs, clean the optical window carefully using isopropyl alcohol (IPA) and a lint-free swab.

· Observe correct polarity during operation. Incorrect bias polarity may result in improper operation and may cause permanent damage under excessive forward current conditions.