OPTOLINQ TMC-2100H | Transparent Mold Compound
- Optimal spiral flow
- Low moisture absorption
- Superior moldability and reliability
Product Description
OPTOLINQ TMC-2100H is an optically clear epoxy molding compound specifically designed for the encapsulation of applications that demand high moldability and optical performance. Its optimized wax formulation delivers improved self-release, enabling easier demolding and better cavity fill.
OPTOLINQ TMC-2100H exhibits excellent resistance to moisture and retains stable performance under high heat and humidity. With superior processability and long-term reliability, it ensures consistent quality and precision in optoelectronic device packaging.
A variant of TMC-2100H is also available with visible light blocking functionality for IR-sensitive applications.
OPTOLINQ TMC-2100H comes in different sizes to meet various mold design requirements. Contact us for custom sizes or other specific requirements.
Key Features
- High IR Transparency: Ensures superior infrared light transmission for optimal device performance.
- Low Moisture Absorption & Excellent Moisture Resistance: Effectively prevents moisture ingress, safeguarding long-term reliability.
- Reliable Under Harsh Conditions: Maintains consistent performance in environments with elevated temperature and humidity.
- High Adhesion & Low Stress: Provides strong, durable bonding with minimal internal stress, reducing risk of delamination or cracking.
Typical Applications
- Low-Power LED & Emitters
- Pulse Oximeter Sensors
- Ambient Light Sensors
- IR and Near-IR Sensors
- Data transmission and industrial fibers.
Versions Available
- Standard Low stress optical molding compound - TMC-2100
- Increased self-release formulation technology - TMC-2100H
- Superior IR optical transparency - TMC-2100IR
Alternative to: XX-8524 Series, XX-824H, XX-330H
Technical Specifications
General Properties | |||||||
Specific Gravity Specific Gravity Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless. | 1.2-1.25 | ||||||
Physical Properties | |||||||
Spiral Flow @ 175°C | 80-180 cm | ||||||
Mechanical Properties | |||||||
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Molded Shrinkage | 1.5 % | ||||||
Thermal Properties | |||||||
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Glass Transition Temperature (Tg) Glass Transition Temperature (Tg) The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs. | 110-130 °C | ||||||
Curing Conditions | |||||||
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Transfer Time | 40-60 s |
Additional Information
OPTOLINQ TMC-2100H Additional Technical Specifications
Property | Value | Unit |
Transmittance at 400nm | 85 | % |
Preheat Temperature | 75-95 | ℃ |
Molding Temperature | 165±10 | ℃ |
Molding Pressure | 3-8 | MPa |
Post Cure Time @165℃ | 3-4 | hours |
Featured TMC-2100H Variants: CAPLINQ Product Offerings

OPTOLINQ TMC for Filter Applications
Looking to enhance optical precision and durability in your filter-integrated optoelectronic devices? This short presentation introduces OPTOLINQ’s clear molding compounds specifically designed for high-performance filter applications.
Featuring TMC-2100H, a versatile formulation available in six onset wavelengths (700, 720, 750, 820, 840, and 870 nm), our clear compounds offer exceptional light control, environmental resistance, and long-term optical clarity.
Whether you're fine-tuning signal filtering, improving IR sensitivity, or ensuring high transmission and structural stability, OPTOLINQ compounds are built to perform—clear, consistent, and reliable.
Got questions or need help selecting the right optical grade for your filter applications? Reach out to us!
Contact Us →
Directions Before Use
- Thaw TMC-2100H to room temperature (20±5℃, 40±15%RH) at least 24 hours before use. Do not open the bag to avoid moisture contamination.
- Slowly preheat the molding compound using standard RF equipment.