




650nm
650nm 5mW VCSEL SMD Series
650nm 5mW VCSEL SMD series with five PCT and ceramic package options for SMT integration, hair-growth devices, PCB layouts and OEM red-light design.
Specifications
- Product Type
- VCSEL SMD
- Wavelength
- 650nm typ.
- Optical Output Power
- 5.5mW typ.
- Transverse Mode
- Multi-mode VCSEL
- Operating Mode
- CW
- Beam Divergence
- 25° typ.
- SMD Package Options
- 1615 / 2835 / 3030 / 3535 / 5050
1. 650nm 5mW VCSEL SMD Series for Hair-Growth and PCB Integration
The 650nm 5mW VCSEL SMD Series includes visible-red laser devices supplied in five surface-mount package options: 1615, 2835, 3030, 3535 and 5050. The series provides a typical optical output power of 5.5mW.
It is a surface-mount alternative to conventional 650nm 5mW TO-5.6 laser diodes and legacy 650nm SMD laser diodes. Primary applications include laser hair-growth caps, hair-growth helmets, laser combs, scalp photobiomodulation systems and other compact red-light products.
All five package options use a 7mil × 7mil multimode VCSEL chip and produce an annular beam profile. Their electrical and optical characteristics are specified under CW test conditions; the 5050 datasheet additionally states that the device supports pulsed operation. The range of package sizes allows developers to select an option according to PCB space, emitter spacing, product thickness and automated assembly requirements.
2. Optical Characteristics and SMD Package Options
The 650nm VCSEL SMD Series has a typical center wavelength of 650nm and a specified wavelength range of 640–660nm.
Typical optical output power is 5.5mW, with a specified output range of 5.0–7.2mW at 10mA. The series operates in CW mode and has a typical beam divergence of 25°.
Package | Package Material | Optical Output Power | Test Current | Beam Divergence |
|---|---|---|---|---|
1615 | PCT | 5.5mW typ. | 10mA | 25° typ. |
2835 | PCT | 5.5mW typ. | 10mA | 25° typ. |
3030 | PCT | 5.5mW typ. | 10mA | 25° typ. |
3535 | Ceramic | 5.5mW typ. | 10mA | 25° typ. |
5050 | PCT | 5.5mW typ. | 10mA | 25° typ. |
The 1615 package supports compact designs with strict PCB-area and product-thickness limits.
The 2835 and 3030 packages are suitable for standard automated placement and multi-laser PCB layouts.
The 3535 ceramic package supports product structures requiring a ceramic base.
The 5050 package provides a larger assembly platform for different PCB and mechanical configurations.
3. SMD Package and SMT Integration
The 650nm VCSEL SMD Series provides a surface-mount alternative to conventional 650nm 5mW TO-5.6 laser diodes and legacy SMD laser diodes.
Traditional TO-5.6 laser diodes commonly require manual lead insertion, lead positioning, lead trimming and secondary soldering. They also occupy more vertical space inside the finished product.
VCSEL SMD devices can be mounted directly onto the PCB surface, supporting lower-profile products, dense optical-source layouts and automated volume manufacturing.
The series can be evaluated as a surface-mount alternative to conventional 650nm 5mW TO-5.6 and legacy SMD laser-diode designs. Replacement projects should verify electrical drive conditions, wavelength, optical output, beam characteristics, package dimensions, PCB layout, thermal path and reflow compatibility.
The five SMD package options support different product dimensions, PCB layouts and emitter-spacing requirements, allowing manufacturers to move from conventional leaded laser structures to surface-mount designs.
SMT Automation and Assembly Advantages
Compared with conventional 650nm TO-5.6 laser-diode assembly, the 650nm VCSEL SMD Series supports automated SMT placement and reflow production while reducing manual lead-processing steps.
Key manufacturing advantages include:
- Compatible with standard SMT placement equipment
- Supports automated pick-and-place processing
- Suitable for volume PCB assembly
- Supports reflow soldering
- No manual lead insertion
- No lead trimming or forming
- Reduced secondary soldering processes
- Reduced manual assembly steps
- Lower-profile product structures
- Supports repeatable volume-production processes
- Suitable for scalable manufacturing and dense multi-laser layouts
For hair-growth caps, helmets and wearable devices containing dozens or hundreds of laser sources, the surface-mount structure can simplify production and improve PCB assembly efficiency.
4. Application Development
650nm red-light components can be evaluated for photobiomodulation (PBM), low-level light therapy (LLLT), hair-growth and personal-care device development.
VCSEL technology provides a compact semiconductor laser source with surface-mount package options for OEM device integration. The products described on this page are components for engineering evaluation; the application descriptions do not represent medical efficacy, clinical performance or regulatory approval of a finished device.
650nm VCSEL SMD devices from 1ONELASER are designed for applications including:
- Hair growth helmets and caps
- Laser hair growth combs
- Scalp-light optical systems
- Red-light therapy device development
- Personal care equipment
We support OEM customers with sample evaluation, package selection, optical customization and engineering support.
Laser Hair-Growth Caps and Helmets
The 650nm VCSEL SMD Series is suitable for laser hair-growth caps, hair-growth helmets and other multi-point scalp-light products.
The 1615, 2835, 3030, 3535 and 5050 packages support different emitter spacing, PCB dimensions and finished-product thickness requirements.
Laser Combs and Hair-Growth Bands
Compact SMD packages can be integrated directly onto rigid or flexible PCBs for laser combs, hair-growth bands and localized scalp-light devices.
The surface-mount structure reduces the internal space required by conventional TO-can packages.
Scalp Photobiomodulation Systems
The series can be evaluated in 650nm scalp photobiomodulation prototypes, scalp-care optical systems and red-light development platforms.
Multiple VCSEL devices can be arranged on PCBs with different shapes and dimensions.
Localized Red-Light PBM and Personal-Care Devices
The 650nm VCSEL SMD Series can also be used in localized red-light PBM devices, personal-care products, compact beauty equipment and wearable red-light systems.
Visible-Red Optical Systems
The series can also support visible-red optical modules, indication systems, alignment equipment and laboratory light-source systems.
Developing a hair growth cap, laser comb or phototherapy device?
1ONELASER provides VCSEL samples, SMD package options and customized solutions for OEM and R&D projects.
Related Articles
5. Evaluation Kit and Documentation Support
The 650nm VCSEL SMD Series is available as an Evaluation Kit for early-stage verification of package options, PCB layouts and production processes.
- 10 pcs / KIT
- 1615, 2835, 3030, 3535 and 5050 package options
- PCT and ceramic package configurations
- Corresponding product datasheets and package drawings
- International shipping quoted according to destination
- Center wavelength, wavelength tolerance, optical output power, power-bin and package-dimension requirements can be discussed
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 package options are available in the 650nm VCSEL SMD Series?
The series provides five surface-mount package options:
- 1615 PCT
- 2835 PCT
- 3030 PCT
- 3535 Ceramic
- 5050 PCT
All models use a multimode VCSEL structure and produce an annular beam profile. They have a typical center wavelength of 650nm and a typical optical output power of 5.5mW at 10mA. Their electrical and optical characteristics are specified under CW test conditions; the 5050 datasheet additionally states that the device supports pulsed operation.
FAQ 2. How does the 650nm VCSEL SMD Series replace conventional TO-5.6 laser diodes?
The 650nm VCSEL SMD Series supports automated SMT placement and reflow production without the manual lead insertion, lead trimming, lead forming and secondary soldering processes commonly required by traditional TO-5.6 laser diodes.
The surface-mount solution can reduce manual lead-processing steps, support lower-profile product structures and enable dense multi-laser PCB layouts.
FAQ 3. Which traditional 650nm laser-diode designs can this series replace?
The series can be evaluated as a surface-mount alternative to conventional 650nm 5mW TO-5.6 and legacy SMD laser-diode designs. It is not a drop-in replacement; electrical drive conditions, package dimensions, PCB layout, optical output, beam profile, thermal path and reflow compatibility must be verified for the complete assembly.
Primary applications include laser hair-growth caps, hair-growth helmets, laser combs, scalp photobiomodulation equipment and compact red-light products.

