850nm
850nm 10mW 2835 VCSEL SMD
850nm 10mW 2835 VCSEL SMD with 10mW typical output at 15mA, 21° D86 beam divergence and SMT packaging for compact NIR sensing.
Specifications
- Product Type
- VCSEL SMD
- Wavelength
- 850nm typ.; 840–860nm
- Optical Output Power
- 8mW min. / 10mW typ.
- Transverse Mode
- Multi-mode VCSEL
- Operating Mode
- QCW / Pulse
- Beam Divergence
- 21° typ., D86
- SMD Package Options
- 2835
1. 850nm 10mW 2835 VCSEL SMD for Balanced Output and PCB Integration
The 850nm 10mW 2835 VCSEL SMD is a compact near-infrared surface-mount source positioned between the 5mW and 20mW products in the current 850nm VCSEL SMD range.
At a forward current of 15mA, the device provides 8mW minimum and 10mW typical optical output under a 0.5ms pulse width and 10% duty cycle.
The device uses a compact 2835 package containing a 7mil × 7mil VCSEL chip. Its surface-mount structure supports automated placement, PCB-level reflow soldering and compact optical-module integration.
The typical D86 beam divergence is 21°.
This version is suitable for projects requiring more optical output than the 5mW model while maintaining moderate pulse-current requirements and the same 2835 package footprint.
Primary development directions include:
- Near-infrared sensing
- Proximity and presence detection
- Compact optical detection
- Machine-vision source evaluation
- PCB-mounted NIR sources
- Engineering and research prototypes
2. Optical and Electrical Characteristics
Parameter | Minimum | Typical | Maximum | Test Condition |
|---|---|---|---|---|
Peak Wavelength | 840nm | 850nm | 860nm | — |
Optical Output Power | 8mW | 10mW | — | IF = 15mA |
Threshold Current | — | 5.5mA | — | — |
Forward Voltage | — | 2.0V | — | IF = 15mA |
Series Resistance | — | 50Ω | — | — |
Slope Efficiency | — | 1W/A | — | — |
Wavelength Shift | — | 0.047nm/°C | — | — |
Beam Divergence, D86 | — | 21° | — | — |
The optical-output rating is specified under QCW operation with a 0.5ms pulse width and 10% duty cycle.
The product should not be interpreted as a continuous-wave 10mW optical source.
Increasing pulse current, pulse width or duty cycle beyond the specified condition can increase junction temperature and may affect output power, wavelength and reliability.
Beam divergence is specified using D86 and should not be interpreted as an FWHM value.
3. 2835 Surface-Mount Package
Package Parameter | Specification |
|---|---|
Package Type | 2835 SMD |
Package Length | 3.5mm |
Package Width | 2.8mm |
Package Height | Approximately 0.68mm |
Internal VCSEL Chip Size | 7mil × 7mil |
Pin 1 | Anode |
Pin 2 | Cathode |
Dimensional Tolerance | ±0.1mm unless otherwise specified |
Standard Reel Quantity | 4,000 pcs / reel |
The package supports automated pick-and-place assembly and PCB-level reflow soldering.
PCB design should account for:
- Correct package polarity
- Recommended solder-pad dimensions
- Stable 15mA pulse-current delivery
- Current limiting and overshoot control
- Pulse timing and duty cycle
- ESD protection
- Optical clearance
- External lens or optical-window position
- PCB thermal design
The optical surface should not be pressed, scratched or contaminated during handling and assembly.
The product is ESD-sensitive and requires appropriate protection throughout placement, soldering, electrical testing and module integration.
4. Application Development and Product Positioning
The 10mW version provides a balanced combination of optical output, drive current and compact package dimensions.
It is suitable when:
- The 5mW version does not provide sufficient received optical signal
- Moderate pulse current is available
- A 0.5ms pulse width and 10% duty cycle are compatible with the system
- The same 2835 package footprint must be maintained
- Compact sensing or optical-detection integration is required
Application development should consider detector sensitivity, working distance, pulse synchronization, optical path, illuminated area and external optics.
The 850nm 5mW 2835 VCSEL SMD provides lower-current operation, while the 850nm 20mW 2835 VCSEL SMD provides higher pulsed output.
Customers requiring unpackaged VCSEL chips or alternative output levels can review the 850nm VCSEL Bare Die Series.
5. Evaluation Kit and Documentation Support
The Evaluation Kit includes:
- 10 pcs / KIT
- One selected 850nm 10mW model per kit
- Corresponding product datasheet
- Corresponding package-dimension file
- International shipping quoted according to destination
The device can be evaluated for:
- PCB placement and soldering
- Pulse-driver development
- Current-control verification
- Optical-output measurement
- Sensor and detector integration
- External lens evaluation
- Initial module development
For component-level project evaluation, an Initial Product Report covering the Laser Diode Series and VCSEL Laser Diode Chip Series has been filed with the U.S. FDA CDRH. This filing supports technical documentation and product evaluation.
For applicable products, CE, EMC, EN 60825, LVD, RoHS, REACH and halogen-free certification and compliance documents are available.
Documentation depends on the corresponding product model and does not represent certification of the customer’s finished device.
6. Frequently Asked Questions
FAQ 1. What are the main specifications of the 850nm 10mW 2835 VCSEL SMD?
The device provides 8mW minimum and 10mW typical optical output at 15mA.
It is specified under a 0.5ms pulse width and 10% duty cycle and provides a typical D86 beam divergence of 21°.
The device is supplied in a compact 2835 surface-mount package with a 7mil × 7mil internal VCSEL chip.
FAQ 2. Is the 10mW product electrically interchangeable with the 5mW and 20mW versions?
No.
The three products use the same package format but require different drive currents and duty-cycle conditions.
The driver circuit should be selected and validated specifically for the 10mW version and should provide controlled 15mA pulse current without excessive overshoot.
FAQ 3. When should I select the 10mW version?
The 10mW product is suitable when the 5mW version provides insufficient received optical signal but the full output of the 20mW version is unnecessary.
It offers an intermediate output and current level within the same compact 2835 package.
Final selection should consider detector sensitivity, working distance, optical path and driver capability.