660nm
660nm 5/7mW VCSEL SMD Series
660nm 5mW and 7mW VCSEL SMD laser diode series with an annular beam and 2016–5730 packages for beauty masks, red-light devices and PCB integration.
Specifications
- Product Type
- VCSEL SMD
- Wavelength
- 660nm typ.
- Optical Output Power
- 5mW / 7mW series
- Transverse Mode
- Multi-mode VCSEL
- Operating Mode
- CW / QCW, depending on model
- Beam Divergence
- 18°–20° typ.
- SMD Package Options
- 2016 / 2835 / 3030 / 5730
1. Standard 660nm 5/7mW VCSEL SMD Series
The 660nm 5/7mW VCSEL SMD Series is a visible-red surface-mount laser diode designed for direct PCB assembly through standard SMT and reflow-soldering processes.
The series provides 5mW and 7mW output-power classes with 2016, 2835, 3030 and 5730 package options. The 5mW series is available in 2016, 2835 and 5730 packages, while the 7mW series is available in 2016, 2835, 3030 and 5730 packages.
These 660nm VCSEL devices use a multi-mode surface-emitting structure and produce an annular, donut-shaped beam spot. Existing models provide typical beam-divergence angles of 18°–20°. CW or QCW operating modes are available depending on the selected power and package model. Refer to the corresponding datasheet for model-specific parameters.
The series is suitable for the development of beauty masks, red-light beauty pens, localized red-light devices, hair-growth products, veterinary and large-animal rehabilitation equipment, photobiomodulation devices and other compact red-light systems.
2. Detailed Optical and Electrical Characteristics
The 660nm VCSEL SMD Series combines low driving current, compact surface-mount construction and multiple package sizes. Output power, operating mode, threshold current and divergence angle vary between models. Selection should be based on the PCB design, driving conditions and target optical performance.
Parameter | Min. | Typ. | Max. | Condition |
|---|---|---|---|---|
Peak Wavelength | — | 660nm | — | Model-specific tolerance |
5mW 2016 Output | 5.0mW | 5.5mW | 7.2mW | IF = 10mA, CW |
5mW 2835 Output | 4.0mW | 5.0mW | 6.0mW | IF = 10mA, QCW |
5mW 5730 Output | 4.5mW | 5.0mW | 5.5mW | IF = 10mA, CW |
7mW Series Output | 6.0mW | 7.0mW | 8.0mW | IF = 10mA, CW |
Threshold Current | — | 1.5–4.0mA | — | Model dependent |
Forward Voltage | — | 2.3–2.6V | 3.0V | IF = 10mA |
Beam Divergence | — | 18°–20° | 23° | Model dependent |
The series uses multi-mode VCSEL chips and produces an annular, donut-shaped beam spot. Actual spot size, central dark region and energy distribution may vary with driving current, working distance, package structure and test conditions.
Package | Size | Selection Guide |
|---|---|---|
2016 | 2.2 × 1.6mm | Compact beauty, wearable and high-density PCB products |
2835 | 3.5 × 2.8mm | Standard SMT production and general PCB integration |
3030 | 3.0 × 3.0mm | 7mW versions and balanced mechanical designs |
5730 | 5.7 × 3.0mm | Larger assembly platform and pad area |
Electrode configuration, dimensional tolerances and reflow-soldering conditions vary by package and should be confirmed using the corresponding datasheet.
Other SMD package sizes can be discussed according to the customer’s PCB structure and product-assembly requirements.
3. Replacing Conventional 660nm TO-can Through-Hole Packages
Compared with a conventional 660nm laser diode in a TO-can through-hole package, the VCSEL SMD format reduces component height and supports automated PCB assembly.
The SMD laser-diode format is compatible with conventional pick-and-place equipment and standard SMT production processes. It reduces manual insertion, lead handling and hand-soldering operations.
In suitable product designs, a 660nm VCSEL SMD can help:
- Reduce the overall height of the laser and PCB assembly
- Simplify PCB layout and mechanical product design
- Support automated placement and batch reflow soldering
- Reduce manual soldering and through-hole insertion steps
- Lower assembly and processing costs
- Improve batch-production consistency
- Support improved assembly yield
- Shorten mass-production and assembly time
The series can be evaluated as an alternative for selected projects currently using conventional 660nm TO-can through-hole laser diodes.
Direct replacement must be verified against operating current, forward voltage, electrical polarity, output power, beam profile, divergence angle, thermal conditions and mechanical construction.
4. 660nm Applications
The 660nm wavelength is within the visible-red spectrum and can be used as a component-level light source for beauty, personal-care, photobiomodulation and veterinary rehabilitation equipment.
Beauty and Localized Red-Light Devices
- Red-light beauty masks
- Red-light beauty pens
- Handheld red-light devices
- Localized red-light applicators
- Wearable red-light systems
- Compact multi-point red-light arrays
Hair-Growth and Scalp-Care Devices
- Hair-growth caps
- Hair-growth helmets
- Hair-growth combs
- Hair-growth bands
- Scalp-care devices
Pet and Large-Animal Equipment
- Pet red-light and photobiomodulation devices
- Canine and feline rehabilitation equipment
- Equine joint, tendon and soft-tissue rehabilitation-device development
- Large-animal photobiomodulation equipment
- Red and near-infrared multiwavelength veterinary PBM systems
For veterinary antimicrobial photodynamic equipment, a 660nm VCSEL can be evaluated as a component-level light source according to the photosensitizer absorption band and system-energy requirements. Conventional 660nm red light should not be described as directly providing skin disinfection or sterilization.
Photobiomodulation and Research Devices
- Red-light therapy device development
- Photobiomodulation devices
- Neuro-photobiomodulation research equipment
- Alzheimer’s disease-related PBM research devices
- Parkinson’s disease-related PBM research devices
Disease-related applications refer only to investigational equipment development and component-level light-source evaluation. They do not indicate that the VCSEL component treats disease or produces a confirmed clinical outcome.
For pet, equine, joint or deeper-tissue applications, the complete device may require near-infrared wavelengths in addition to red light. Optical power density, treatment distance, operating time and complete system design must be validated.
The 660nm VCSEL is a component-level light source for product development and technical evaluation. Medical, beauty, veterinary or therapeutic use of the final equipment must be validated by the device manufacturer according to complete system performance and applicable market regulations.
5. Evaluation Kit and Documentation Support
The 660nm VCSEL SMD Evaluation Kit normally includes:
- 10 pcs / KIT
- Selection of the 5mW or 7mW power class according to the project
- Selection of the corresponding SMD package according to the PCB design
- International shipping cost confirmed according to the destination
- Corresponding product datasheets
- RoHS, REACH and halogen-free documentation
- Support for PCB assembly, driving and optical evaluation
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.
The following parameters can be discussed for specific projects:
- Center wavelength
- Wavelength tolerance
- Optical output power
- Power-bin selection
- Package dimensions
6. Frequently Asked Questions
FAQ 1. How should I choose between the 5mW and 7mW 660nm VCSEL SMD options?
The differences between the 5mW and 7mW versions are not limited to the output power of each component. Available package options and operating modes also vary.
The 5mW series is available in 2016, 2835 and 5730 packages. The 7mW series is available in 2016, 2835, 3030 and 5730 packages. Depending on the model, operation can be CW or QCW, with typical divergence angles of 18°–20°.
A higher-power component is not automatically the better choice. For beauty masks, hair-growth caps and wearable products using many evenly distributed light sources, a 5mW device may provide better control of point-source heating, emitter spacing and overall optical uniformity. A 7mW device can be considered when higher output from each position is required or when the design aims to reduce the total number of light sources.
Final selection should consider target power density, source quantity, working distance, duty cycle, driving current, PCB thermal capacity and product-safety limits.
FAQ 2. Can a 660nm VCSEL SMD directly replace a conventional 660nm TO-can laser diode?
A 660nm VCSEL SMD can be evaluated as an alternative for selected TO-can projects, but it should not be assumed to be a drop-in replacement.
The replacement evaluation should verify:
- Operating current and forward voltage
- Electrical polarity and protection circuit
- Center wavelength and wavelength tolerance
- Optical output power
- Annular, donut-shaped beam profile
- Beam-divergence angle
- PCB pad design and package dimensions
- Reflow-soldering process
- Thermal path and operating temperature
The SMD format reduces component height, manual insertion and hand soldering while supporting automated placement and batch reflow production. Evaluation Kit testing is recommended before small-batch production validation.
FAQ 3. How should a 660nm VCSEL SMD be evaluated for beauty, hair-growth, veterinary and neuro-PBM devices?
Evaluation should begin with the target system requirements rather than wavelength or single-component power alone. Beauty masks, hair-growth caps and localized red-light devices require calculation of optical power density, beam overlap, array uniformity, temperature rise and exposure time at the actual working distance.
Pet and equine rehabilitation equipment must also account for hair, skin color, irradiation distance and target-tissue depth. For joint, tendon or deeper-tissue applications, a combination of red and near-infrared wavelengths should normally be evaluated rather than relying only on low-power 660nm red light.
Neuro-photobiomodulation and Alzheimer’s or Parkinson’s disease-related directions are limited to investigational equipment development. Complete systems must be validated for power density, dose, thermal management, eye safety, operating time and applicable market regulations. The VCSEL component itself does not establish a medical effect or treatment conclusion.
