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206036-1 Datasheet(PDF) 9 Page - Tyco Electronics |
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206036-1 Datasheet(HTML) 9 Page - Tyco Electronics |
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9 / 51 page  AMP Circular Connectors for Commercial Signal and Power Applications 9 Catalog 82021 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-2103-6000 Revised 7-07 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628 specified. Values in brackets Specifications subject Mexico: 52-55-1106-0800 Japan: 81-44-844-8013 www.tycoelectronics.com are metric equivalents. to change. C. America: 57-1-254-4444 UK: 44-208-420-8341 Presentation — An Example* Note: All part numbers are RoHS Compliant. The presentation of current- carrying capacity in AMP product specifications includes two parts: I First, a base curve showing current levels versus T-rise for a single circuit and the largest wire size (See figure 1). This represents the maximum current capacity of the contact. The curve is usually flat up to 75°C ambient and then drops off. Up to 75°C, the 30°C T-rise limits the amount of current, and above 75°C the current must be reduced to keep the combination of ambient temperature and T-rise from exceeding the maximum operating tempera- ture of 105°C. I Next are rating factors, a table of multipliers to account for connector loading and for smaller wire sizes (See figure 2). The designer first determines the base current for the ambient conditions of the application; then multiplies this base current by the rating factors to find the current level for the application’s loading factor and wire size. Graph shows the relationship between base current, ambient temperature, and contact T-rise. Figure 1 Rating factors allow the base current to be adjusted for various connector loading and wire sizes. Practical Values The current-rating method gives designers practical values applicable to their appli- cations. While the specified current levels for a contact may be lower than for other testing methods, they are more practi- cal and simplify the system design process. “Spec-manship” is replaced by a realistic assessment of the current-carrying capacity of a contact under varying condi- tions of temperature, connector loading, and wire size. Specific current-carrying data based on EOL and % loading is available from Tyco Electronics. Please contact your local Tyco Electronics Sales Engineer or call Tyco Electronics. Connector/Contact Acceptability As previously stated, choosing the correct connector/contact combination is fundamental to the successful function of all connectors. The Selector Chart shown at right, is designed to simplify your choice *Note: Data is not typical of a specific CPC connector configu- ration. For specific current rating information based on % connector loading, contact Tyco Electronics. To demonstrate the method of specifying current, consider the following application conditions; an ambient temperature of 65°C, a 50% loading of contacts in the housing, and 20 AWG [0.6mm2] wire. I From Figure 1, the base current rating is 14 ampere with 18 AWG [0.8mm2] wire. I Figure 2, the rating factor for 50% loading and 20 AWG [0.6mm2] wire is 0.68. I The specific rating for this application is the product of the base rating and the rating factor: 14 x 0.68 = 9.5 ampere I Each of the contacts can carry 9.5 ampere. I However, if the ambient temper- ature is 80°C the allowable T-rise becomes 25°C. The base current must be lowered to 12.8 ampere so that the 105°C maximum operating tempera- ture is not exceeded. The current rating then becomes: 12.8 x 0.68 = 8.7 ampere. Connector Posted Sub-Mini POWERBAND Type 20 DF Type I Type II Type III+ Type III+ Type XII Coax Contacts CPC Series 1 CPC Series 2 CPC Series 3 CPC Series 4 CPC Series 5 CPC Series 6 CPC 5015 CMC Series 1 CMC Series 2 CMC Series 3 CMC Series 4 18 20 22 24 26 Single 1 .83 .69 .59 .50 30% .97 .80 .66 .57 .49 50% .83 .68 .57 .48 .42 70% .65 .53 .45 .38 .33 100% .55 .45 .38 .32 .28 AWG Figure 2 Contact Selector Chart Current Rating 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 Single Contact 18 AWG Ambient Temperature ( °C) of connectors and their accept- able contacts. Once you have selected the wire size, current- carrying capacity need, number of positions required, and the type of contacts needed in your choice of connector, refer to this matrix for a quick look at exactly what is acceptable in a given connector type. |
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