ERM8-025-05.0-S-DV-DS-K-TR vs 61082-203409LF
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| Category | Rectangular Connectors - Arrays, Edge Type, Mezzanine (Board to Board) | Rectangular Connectors - Arrays, Edge Type, Mezzanine (Board to Board) |
| Manufacturer | Samtec Inc. | Amphenol ICC (FCI) |
| Description | .8MM EDGE RATE TERMINAL ASSEMBLY | CONN RECEPT 200POS .8MM DUAL SMD |
| Package | - | - |
| Series | Edge Rate? ERM8 | BergStak?, MezzSelect? |
| Features | Board Guide, Pick and Place | Board Guide |
| Mounting Type | Surface Mount | Surface Mount |
| Contact Finish | Gold | Gold |
| Number of Positions | 50 | 200 |
| Pitch | 0.031" (0.80mm) | 0.031" (0.80mm) |
| Height Above Board | 0.351" (8.91mm) | 0.461" (11.70mm) |
| Connector Type | Differential Pair Array, Male | Receptacle, Outer Shroud Contacts |
| Contact Finish Thickness | 30µin (0.76µm) | 8µin (0.20µm) |
| Number of Rows | 2 | 2 |
| Mated Stacking Heights | 10mm, 12mm, 15mm | 13mm, 14mm, 15mm, 16mm |
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1. What is a rectangular connector?
A rectangular connector is a connector with a basically rectangular shape and a basically rectangular mating surface. It is also an important category in the connector family. There are many varieties and specifications, and it is also widely used. It should be pointed out that the classification of rectangular connectors and printed circuit board connectors, strip connectors, and ribbon cable connectors is sometimes not strictly defined. For the same type of connector, some manufacturers classify it as a rectangular connector (approximately rectangular in shape), some as a printed circuit board connector (used in printed circuits), some as a strip connector (approximately long in shape), and some as a ribbon cable connector (connected with a ribbon cable). It is widely used in indoor cable connections, internal connections of equipment, and occasions where multiple rows of assembly are required.
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2. Rectangular connector usage environment?
1. Ambient temperature: refers to the use within the ambient temperature specified by the product. Even if the external ambient temperature is not high, if the product works in the chassis, the heat dissipation conditions are poor and the heating of other components will cause the ambient temperature of the product to be much higher than the external ambient temperature. Using it beyond the specified ambient temperature can also damage the metal plating or insulator.
2. Humidity or water: Humidity or water will form a water film on the surface of the insulator, which will reduce the insulation performance and even cause miscommunication between adjacent contact parts. Generally, connectors that are used in high humidity or water conditions for a long time should use sealing connectors.
3. Low air pressure: The air pressure will decrease under high altitude conditions (except in a constant air pressure sealed chamber). When the product is under low air pressure conditions, the dielectric withstand voltage of the product will decrease. If the transmitted voltage is higher than the requirements of the product technical conditions, electrical breakdown may occur, causing failure.
4. Corrosive environment: refers to the atmosphere around the product when it is working, such as salt spray at sea, acid and alkali in chemical raw material storage warehouses, etc. These conditions will cause corrosion and erosion to the metal parts and insulators of the connector. When selecting connectors, special requirements can be made to the manufacturer or products that can meet these requirements can be selected.
5. Mechanical conditions: refers to mechanical effects such as vibration, impact, acceleration, etc., and are selected according to the parameters in the micro-rectangular connector sample. In fact, in actual use, the cable and the contact should be crimped and fixed with a wire clamp or other means. Cables that are too long and have no fixing measures will endanger the safety of the cable under the action of external forces such as vibration or impact. In severe cases, it will cause cable breakage and micro-rectangular connector damage. -
3. Application fields of rectangular industrial connectors?
1. Industrial fields: automated numerical control, hot runner molds, injection molding machines, etc.;
2. Machinery industry: robotics industry, engineering automation, automotive industry, escalators, elevators, printing industry, textile industry, engineering machinery, lathes, plastic processing machinery, metal processing and wood processing machinery, food and beverage processing and packaging machinery;
3. Energy industry: power industry, wind energy industry;
4. Transportation technology: railway transportation, etc. -
4. What are the types of rectangular connectors?
1. Pin-type rectangular connector: This is the most common type of rectangular connector. The metal pin is inserted into the interface hole and rotated to tighten to achieve conductive connection.
2. Snap-on rectangular connector: It is fixed with self-locking mechanisms such as spring sheets or clips, and is suitable for use in vibration environments.
3. SMD rectangular connector (SMT type): It is suitable for use in surface mount technology (SMT), which is convenient and fast.
4. Board-to-board rectangular connector: Mainly used for interconnection of board-level and system-level circuits, with the characteristics of high-density connection, low plug-in and pull-out times, and easy maintenance.
5. Wire-to-board rectangular connector: Suitable for the connection of internal signals and power of equipment, can withstand high current and high temperature environments, and has the advantages of easy installation and convenient maintenance.
