905nm
905nm 70W 3535 Multi Junction VCSEL SMD
905nm 70W 3535 multi-junction VCSEL SMD with 70W typical output at 15A, 5ns operation and 18° D86 divergence for LiDAR and dToF.
Specifications
- Product Type
- Multi-Junction VCSEL SMD
- Wavelength
- 905nm typ.
- Optical Output Power
- 60W min. / 70W typ.
- Transverse Mode
- Multi-mode VCSEL
- Operating Mode
- QCW
- Beam Divergence
- 18° D86
- SMD Package Options
- 3535
1. 905nm 70W 3535 Multi-Junction VCSEL SMD for High-Peak-Output Pulsed Development
The 905nm 70W 3535 Multi-Junction VCSEL SMD is a high-peak-output surface-mount near-infrared source designed for nanosecond-pulsed LiDAR evaluation, direct time-of-flight development, laser rangefinding, industrial sensing and custom optical-transmitter integration.
At a specified drive current of 15A, a temperature of 25°C, a pulse width of 5ns and a 0.1% duty cycle, the device provides:
- 60W minimum optical output
- 70W typical optical output
The device provides a typical peak wavelength of 905nm within a specified wavelength range of 895–915nm.
Its beam divergence is specified as 18° using the D86 measurement definition.
The D86 value should not be interpreted as an FWHM or 1/e² beam-divergence value.
The compact 3535 SMD package supports PCB-level integration while providing substantially higher pulsed output than the 5W 3030 product.
The product is intended for short-pulse operation. The 70W rating should not be interpreted as continuous-wave or long-pulse output.
Development directions include:
- LiDAR transmitter evaluation
- Direct time-of-flight development
- Laser rangefinding
- Industrial distance sensing
- Object detection
- High-peak-output pulse-source evaluation
- PCB-level VCSEL transmitters
- Lens and collimator integration
- Custom optical modules
- Engineering and research prototypes
2. Optical and Electrical Characteristics
The principal optical and electrical characteristics of the 905nm 70W 3535 Multi-Junction VCSEL SMD are shown below.
Parameter | Minimum | Typical | Maximum | Test Condition |
|---|---|---|---|---|
Peak Wavelength | 895nm | 905nm | 915nm | 25°C |
Optical Output Power | 60W | 70W | — | IF = 15A |
Threshold Current | — | 200mA | — | — |
Forward Voltage | — | 20V | — | IF = 15A |
Beam Divergence, D86 | — | 18° | — | D86 |
The optical-output values are specified at 25°C using a 5ns pulse width and 0.1% duty cycle.
This product should not be interpreted as a continuous-wave device. The 70W typical optical output applies only under the specified short-pulse condition.
The 15A specified pulse current requires careful management of:
- Driver rise and fall time
- Peak-current stability
- Voltage and current overshoot
- PCB trace inductance
- Package parasitics
- Ground-return path
- Current distribution
- Solder-joint integrity
- Device temperature
The 18° beam-divergence value uses the D86 definition and should not be replaced by an FWHM or 1/e² value.
The complete driver, PCB and optical assembly should be evaluated under the intended pulse condition before production use.
3. 3535 SMD Package and SMT Integration
The device uses a compact 3535 surface-mount package for high-peak-output PCB transmitter integration.
Package Parameter | Specification |
|---|---|
Nominal Package Type | 3535 SMD |
Package Length | 3.4mm nominal |
Package Width | 3.4mm nominal |
Package Height | 1.7mm nominal |
Internal VCSEL Chip Size | 18mil × 15mil |
Beam Divergence | 18° D86 |
Protection | Protection device shown in package drawing |
Tape-and-Reel Quantity | 4,000 pcs / reel |
The 3535 package supports:
- Automated pick-and-place assembly
- SMT production
- Reflow soldering
- Compact high-output transmitter layouts
- PCB-level optical-source integration
- Lens or collimator integration
- Repeatable component positioning
- Scalable volume assembly
Because the device is characterized at a 15A nanosecond pulse current, PCB and assembly development should consider:
- Low-inductance current paths
- Short driver-to-package distance
- Wide current-carrying traces
- Controlled ground-return geometry
- Suitable pad and solder-joint structure
- Limited transient overshoot
- Package temperature
- Optical-axis alignment
- ESD protection
The package drawing includes a protection device. The complete electrical protection strategy should still be validated within the customer’s driver and PCB design.
The corresponding datasheet specifies that reflow soldering should be performed only once.
Pressure should not be applied to the optical package during reflow or after soldering.
The device is ESD-sensitive. Appropriate electrostatic-control procedures are required throughout storage, placement, assembly, testing and handling.
4. Application Development
The 905nm 70W 3535 Multi-Junction VCSEL SMD is intended for high-peak-output pulsed near-infrared transmitters requiring a completed SMD package, 18° D86 beam divergence, compact PCB footprint and controlled 15A nanosecond drive.
Application directions include:
- LiDAR transmitter evaluation
- Direct time-of-flight development
- Laser rangefinding
- Industrial distance sensing
- Object detection
- High-peak-output optical triggering
- PCB-level pulsed transmitters
- Compact optical modules
- Customer-specific VCSEL transmitters
- Engineering and laboratory systems
LiDAR, dToF and Laser-Rangefinding Development
For LiDAR, dToF and laser-rangefinding applications, product selection should consider working distance, receiver sensitivity, detector timing, target reflectivity, optical transmission, D86 beam divergence, transmitter field of view, receiver field of view, pulse repetition rate and external optical structure.
The 70W typical pulsed output supports high-peak-output transmitter evaluation where stronger transmitted pulses and higher received-signal levels are required.
The 18° D86 beam divergence provides a narrower specified beam field than the 20° D86 value of the 5W 3030 model.
The 5ns pulse condition can support timing-sensitive transmitter development, but final ranging resolution and detection performance depend on the complete driver, receiver, timing electronics and signal-processing architecture.
Final detection distance cannot be determined from VCSEL optical-output power alone.
It also depends on the transmitter, receiver, optics, target conditions and operating environment.
For LiDAR, dToF and laser-rangefinding projects, product selection should consider peak optical output, pulse width, repetition rate, receiver sensitivity, detector timing, target reflectivity, optical transmission and the required field of view.
The VCSEL bare die is one component of the complete transmitter system. Final detection distance and system performance depend on the driver, package, optics, receiver, signal processing and environmental conditions.
For application-level sensing-source selection and optical-system planning, visit the Sensing & Machine Vision solution page.
For broader high-power NIR packaging, thermal-path and optical-module development, visit the High-Power NIR & Optical Modules solution page.
PCB and Optical-Module Development
The completed 3535 SMD package allows PCB and optical-module developers to integrate the high-output VCSEL using automated placement and reflow production.
Possible integration directions include:
- High-output dToF transmitters
- LiDAR transmitter boards
- Lens-integrated VCSEL SMD assemblies
- Collimated optical transmitters
- Application-specific rangefinding modules
- Industrial distance-sensing sources
- Customer-designed pulsed-source modules
The final optical field depends on the 18° D86 beam-divergence value, package placement, optical-axis alignment, lens focal length, lens-to-package spacing, package tolerance and mechanical structure.
The electrical design must minimize parasitic inductance and transient distortion to maintain the intended 5ns pulse at the VCSEL package.
The component does not independently establish the eye-safety classification, detection distance or regulatory status of the customer’s completed system.
For wavelength, output power, D86 beam divergence, package, optical structure and transmitter-module requirements, submit a Custom Development & ODM request.
5. Evaluation Kit and Documentation Support
The 905nm 70W 3535 Multi-Junction VCSEL SMD is available for high-current pulse-driver evaluation, PCB design validation, SMT assembly testing and initial optical integration.
The Evaluation Kit includes:
- 10 pcs / KIT
- 905nm 70W 3535 Multi-Junction VCSEL SMD
- Corresponding product datasheet
- Corresponding package-dimension file
- International shipping quoted according to destination
Evaluation can support:
- 15A nanosecond pulse-driver testing
- 5ns pulse validation
- PCB current-path evaluation
- Package-parasitic evaluation
- SMT placement trials
- Reflow-process validation
- 18° D86 beam-divergence evaluation
- Lens and collimator selection
- Initial LiDAR evaluation
- Initial dToF and rangefinding testing
The following requirements can be discussed according to the project:
- Peak wavelength
- Wavelength tolerance
- Pulsed optical output
- Power-bin selection
- Pulse width
- Duty cycle
- D86 beam divergence
- Package configuration
- External lens, diffuser or collimator
- Custom high-output transmitter integration
- Volume-supply requirements
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 905nm 70W 3535 VCSEL SMD?
At a specified drive current of 15A, a temperature of 25°C, a 5ns pulse width and 0.1% duty cycle, the product provides 60W minimum and 70W typical pulsed optical output.
The typical peak wavelength is 905nm within a specified range of 895–915nm.
The typical forward voltage is 20V, the typical threshold current is 200mA and the beam divergence is 18° D86.
The optical-output value applies only under the specified short-pulse condition.
FAQ 2. What PCB and driver considerations are important for the 70W VCSEL SMD?
The device is characterized at a 15A nanosecond pulse current.
The driver and PCB should minimize parasitic inductance, current-path length, ground-return impedance and transient overshoot.
The PCB design should also confirm package polarity, pad geometry, current-carrying capability, solder-joint quality and optical-axis position.
The corresponding datasheet specifies one reflow-soldering cycle, and appropriate ESD protection is required throughout assembly and testing.
FAQ 3. When should I select the 70W 3535 model instead of the 5W 3030 model?
The 70W 3535 product is suitable when the project requires substantially higher peak optical output, 18° D86 beam divergence and can provide a controlled 15A, 5ns pulse.
The 5W 3030 model is more suitable for compact designs requiring lower pulse current, a 100ns pulse condition and 20° D86 beam divergence.
The final model should be selected according to pulse width, drive-current capability, detection requirements, PCB space, electrical parasitics, optical efficiency and receiver sensitivity.