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- High heat-resistant Connector
What is a High heat-resistant Connector?
IRISO Electronics' High heat-resistant Connector are connectors that maintain connection reliability for long periods in high-temperature environments. Utilizing know-how gained from numerous reliability evaluations and CAE, we are able to select the optimal materials and structure. We have released products that can withstand temperatures up to 125°C.
Advantages of choosing High heat-resistant Connector
High heat-resistant Connector contribute to solving various problems.
- It can be used without problems for a long time even in high temperature environments that may affect connection performance.
- Since a large margin can be secured against temperature rise due to current flow, the ratings can be maximized.
- Since many variations are available, it can be used in various situations.
Background of demand for High heat-resistant Connector
In recent years, heat resistance requirements for connectors have been steadily increasing. I will briefly explain why heat resistance is necessary and why it is becoming more stringent.
First of all, the installation environment in the first place, such as automobiles, especially around the engine, will be hot.
In addition, the amount of heat generated from semiconductors and other devices is increasing year by year, as the functionality of devices has become more sophisticated in recent years. While being affected by those around the connector, the connector has to perform the function of connection under high temperature.
Furthermore, there is also heat generated by the energization of the connector itself.
Connectors are usually rated for a current value that rises by 30°C, but it is necessary to have heat resistance that takes into account all of these.
What is required for a stable connection at high temperatures?
Of the required properties, the most important one for heat resistance is maintaining contact resistance in high-temperature environments.
The terminals of connectors, or the so-called connecting parts, are mainly made of copper alloy.
Contact resistance depends on the pressure between the terminals, and is usually achieved by incorporating a spring mechanism on one or both sides of the pair of connectors.
By the way, when metals are exposed to high temperatures, they undergo a softening phenomenon called "annealing."
Connector terminals, as metals, originally have a certain amount of "distortion" that allows them to maintain their springiness, but when the temperature rises (which is, in a sense, what metals should have), the distortion is released and the springiness weakens.
During this weakening process, it is necessary to maintain a consistent and appropriate contact pressure over the specified product lifespan, and to achieve this within limited space and cost.
If it is too strong, it will be difficult to Mating, so make sure it is not too strong at the beginning.
On the other hand, the necessary contact pressure must be maintained even as the annealing progresses.
To achieve this, it is important to select the appropriate metal material and to have ingenious terminal shape design technology.
At IRISO, we have released a number of High heat-resistant Connector by utilizing the extensive know-how and evaluation methods we have cultivated over the years, as well as by appropriately implementing CAE.
Our maximum rating is 125°C, but we offer both Board to Board Connector and FPC connectors.
Related column
Introduction of typical High heat-resistant Connector product lineup
13065 series
2.0mm pitch non-waterproof interface connector for in-vehicle equipment. Tab size 0.5mmx0.3mm. Designed for high temperatures with a maximum operating temperature of +125°C. Implementation method: SMT. mating direction: right angle.
13103 series
2.0mm pitch non-waterproof interface connector for in-vehicle equipment. Tab size 0.5mmx0.3mm. Designed for high temperatures with a maximum operating temperature of +125°C. Implementation method: SMT. mating direction: right angle.
10128 series
0.8mm pitch, Z Floating Floating structure type Stacking connection Board to Board Connector connector for connection in equipment intended for use in harsh vibration environments. Floating 0.5mm Floating to X Y direction in construction. 0.02mm resonance amplitude and 0.5mm effective Mating length in the Z direction. Employs two-point contact for reliable foreign object removal even in tough environments. 125°C compatible product for use in high temperature environments.
10127 series
2.0mm pitch, Z Floating Floating structure type Stacking connection Board to Board Connector connectors for connection in equipment intended for use in harsh vibration environments. low profile type "Z-Move structure ™ (G-move)" connectors to meet the market demand for the existing 10120 series lineup. Floating (Floating structure) structure with 0.5mm X Y direction to Floating. 0.02mm resonance amplitude and 0.5mm effective Mating length in the Z direction. Employs a two-point contact for reliable removal of foreign matter even in tough environments. 125°C compatible product for use in high temperature environments.
9880 series
This 9.2mm pitch, Floating structure type Stacking connection (ST/ST) Board to Board Connector connector utilizes IRISO unique Floating structure technology with added high current capability. The Floating (Floating structure) structure Floating of 1.0mm in the X direction and 0.5mm in the Y direction. The effective Mating in the Z direction is 0.5mm. It can handle a large current of 15A (300V, pollution level 2), contributing to improved workability when connecting high currents in multiple locations.
10126 series
0.40mm pitch, Floating structure type Stacking connection (ST/ST) Board to Board Connector connector for high-speed transmission of digital signals. Floating（The Floating structure structure allows 0.4 mm Floating to X Y direction and 0.3 mm effective Mating length in the Z-direction. low profile Space-saving design with high-speed transmission capability of 8.0Gbps (typical reference value based on in-house definition). Impedance matching: Differential 100 Ω. Absorbs optical axis misalignment when installing into a module board of an in-vehicle camera, greatly improving reliability.
10120 series
2.0mm pitch, Z Floating (Z-Move structure) Floating structure type Stacking connection (ST/ST) Board to Board Connector connector for in-device connections for use in harsh vibration environments. Floating (Floating structure) construction with 0.65mm X Y direction to Floating. 0.02mm resonance amplitude and 0.7mm effective Mating length in the Z direction. Employs a two-point contact for reliable removal of foreign matter even in tough environments. 125°C compatible product for use in high temperature environments.
18021S series
Pin header Socket (pitch: 2.54mm, 0.64mm square) with Floating structure (Floating Mating part). The bottom Mating method, which is most suitable for board stacking, is adopted, and by replacing the conventional manual soldering board connection with a connector, the delicate soldering process is eliminated and the connection reliability is improved.
11007S series
0.4mm pitch Stacking connection (ST/ST) Board to Board Connector connector that enables high-speed transmission of digital signals. Supports high-speed transmission despite low profile, space-saving design Supports high-speed transmission of 12.0 Gbps (representative reference value defined by our company). Impedance Matching: Differential 100Ω.