1. 905nm 5W 3030 Multi-Junction VCSEL SMD for Pulsed Source Development
The 905nm 5W 3030 Multi-Junction VCSEL SMD is a compact surface-mount near-infrared source designed for nanosecond-pulsed sensing, distance sensing evaluation, laser rangefinding, PCB integration and custom optical-transmitter development.
At a specified drive current of 1A, a temperature of 25°C, a pulse width of 100ns and a 0.1% duty cycle, the device provides:
- 4W minimum optical output
- 5W typical optical output
- 5W maximum specified optical output
The product provides a typical peak wavelength of 905nm within a specified wavelength range of 899–911nm.
Its beam divergence is specified as 20° using the D86 measurement definition.
The D86 value should not be interpreted as an FWHM or 1/e² beam-divergence value.
The compact 3030 SMD package supports direct PCB placement, automated SMT assembly, reflow soldering and application-specific optical integration.
Development directions include:
- Distance-sensing source evaluation
- Compact laser rangefinding
- Pulsed rangefinding-source evaluation
- Industrial distance sensing
- Object and presence detection
- Nanosecond pulsed-source evaluation
- PCB-level optical transmitters
- Lens and diffuser integration
- Engineering and research prototypes
2. Optical and Electrical Characteristics
The principal optical and electrical characteristics of the 905nm 5W 3030 Multi-Junction VCSEL SMD are shown below.
The optical-output values are specified at 25°C using a 100ns pulse width and 0.1% duty cycle.
This product should not be interpreted as a continuous-wave device. The 5W typical optical-output value applies only under the specified short-pulse test conditions.
Performance in the completed assembly may also be influenced by:
- Driver rise and fall time
- Voltage and current overshoot
- External optical structure
The 20° beam-divergence value uses the D86 definition and should not be replaced by an FWHM or 1/e² value.
The device should therefore be evaluated using the intended driver, PCB, package environment and optical assembly.
3. 3030 SMD Package and SMT Integration
The device uses a compact 3030 surface-mount package for PCB-level integration.
The package supports:
- Automated pick-and-place assembly
- Low-profile optical transmitters
- Lens or diffuser integration
- Repeatable component positioning
PCB and assembly development should consider:
- Driver-to-package distance
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 the soldering process.
The device is ESD-sensitive. Appropriate electrostatic-control procedures are required throughout storage, placement, assembly, testing and handling.
4. Application Development
The 905nm 5W 3030 Multi-Junction VCSEL SMD is intended for compact pulsed near-infrared transmitter projects requiring a completed SMD package, 20° D86 beam divergence and a specified 1A pulse current.
Application directions include:
- Distance-sensing source evaluation
- Compact laser rangefinding
- Pulsed rangefinding-source evaluation
- Industrial distance sensing
- Presence and proximity sensing
- Optical timing and trigger systems
- Engineering and laboratory evaluation
Rangefinding and Distance-Sensing Development
For rangefinding and distance-sensing applications, product selection should consider working distance, receiver sensitivity, detector timing, target reflectivity, optical transmission, D86 beam divergence, pulse width, repetition rate and external optical structure.
The 3030 package supports compact transmitter layouts where PCB space and device height are important.
The 20° D86 beam divergence provides the specified unshaped optical field before an external lens, diffuser or collimator is applied.
The 100ns pulse condition is longer than the 5ns condition used by the 70W model. Driver and receiver timing should therefore be evaluated according to the customer's complete measurement architecture.
Final working distance cannot be determined from VCSEL optical-output power alone.
It also depends on the transmitter, receiver, optics, signal-processing system, target conditions and operating environment.
For rangefinding and distance-sensing 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.
PCB and Optical-Module Development
The surface-mount package allows PCB and optical-module developers to integrate the VCSEL using automated placement and reflow production.
Possible integration directions include:
- Compact distance-sensing transmitters
- PCB-level rangefinding sources
- Lens-integrated VCSEL SMD assemblies
- Diffuser-integrated pulsed sources
- Collimated optical transmitters
- Industrial optical-source boards
- Application-specific sensing modules
The final optical field depends on the 20° D86 beam-divergence value, package placement, optical-axis alignment, lens focal length, lens-to-package spacing, diffuser characteristics, PCB tolerance and mechanical structure.
The component does not independently establish the eye-safety classification, detection distance or regulatory status of the customer's completed system.
5. Evaluation Kit and Documentation Support
The 905nm 5W 3030 Multi-Junction VCSEL SMD is available for pulse-driver evaluation, PCB layout validation, SMT assembly testing and initial optical integration.
The Evaluation Kit includes:
- 905nm 5W 3030 Multi-Junction VCSEL SMD
- Corresponding product datasheet
- Corresponding package-dimension file
- International shipping quoted according to destination
Evaluation can support:
- PCB footprint verification
- Reflow-process validation
- Electrical-parasitic evaluation
- 20° D86 beam-divergence evaluation
- Lens and diffuser selection
- Initial distance-sensing evaluation
- Initial rangefinding testing
The following requirements can be discussed according to the project:
- External lens or diffuser
- Custom optical-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 5W 3030 VCSEL SMD?
At a specified drive current of 1A, a temperature of 25°C, a 100ns pulse width and 0.1% duty cycle, the product provides 4W minimum and 5W typical pulsed optical output.
The typical peak wavelength is 905nm within a specified range of 899–911nm.
The typical forward voltage is 20V, the typical threshold current is 10mA and the beam divergence is 20° D86.
The optical-output value applies only under the specified short-pulse condition.
FAQ 2. How should the 905nm 5W 3030 VCSEL SMD be assembled?
The product is supplied in a 3030 surface-mount package and supports automated SMT placement and reflow soldering.
The PCB design should confirm the recommended land pattern, package polarity, peak-current path, trace inductance, solder-paste volume and optical-axis position.
The corresponding datasheet specifies one reflow-soldering cycle.
Appropriate ESD protection is required during storage, placement, soldering, testing and handling.
FAQ 3. When should I select the 5W 3030 model instead of the 70W 3535 model?
The 5W 3030 model is suitable when the project requires a compact package, a lower specified pulse current, a 100ns pulse condition and 20° D86 beam divergence.
The 70W 3535 model is more suitable when the system requires substantially higher peak optical output, 18° D86 beam divergence and can support a controlled 15A, 5ns pulse.
The final model should be selected according to pulse condition, drive-current capability, working distance, receiver sensitivity, PCB space, electrical parasitics and optical design.