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Page 1 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 MF12E, MF08E, MF06E 1%, 5% Triple Power Surge Chip Resistors Size 1206 3/4W, 0805 1/2W, 0603 1/3W Automotive AEC Q200 Compliant Anti-Sulfuration ASTM B-809 Compliant *Contents in this sheet are subject to change without prior notice.
Page 2 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 FEATURE 1. High reliability and stability 2. Reduced size of final equipment 3. Ultra high power 4. Automotive AEC Q200 compliant 5. RoHS compliant and Lead free products 6. ASTM B- 809 50’C 1000hrs Compliant APPLICATION Consumer electrical equipment Automotive application EDP, Computer application Telecom application
DESCRIPTION
The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are added at each end and connected by a resistive paste that is applied to the top surface of the substrate. The composition of the paste is adjusted to give the approximate resistance required and the value is trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer. The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For ease of soldering the outer layer of these end terminations is a Tin (lead free) alloy. Fig 1. Construction of Chip-R
Page 3 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 QUICK REFERENCE DATA Note : Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determin ed by ValueResistancePower RatedRCWV or Max. RCWV listed above, whichever is lower. DIMENSIONS (unit : mm) Part No MF12E MF08E MF06E MF06E MF08E MF12E WF06E WF08E WF12E
Page 4 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 MARKING
Page 5 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E96 & E24 series for resistors with a tolerance o f 1%, 5%. The values of the E24/E96 series are in accordance with “IEC publication 60063”. Derating The power that the resistor can dissipate depends on the operating temperature; see Fig.2
Page 6 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 SOLDERING CONDITION The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260C for 10 seconds. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other discrete components on the reverse (mixed PCBs). Surface Mount Resistors are tested for solderability at 235 C during 2 seconds. The test condition for no leaching is 260 C for 30 seconds. Typical examples of soldering processes that provide reliable joints without any damage are given in Fig 3. Fig 3. Infrared soldering profile for Chip Resistors CATALOGUE NUMBERS The resistors have a catalogue number starting with . MF12 E 1202 F T L Size code MF12: 1206 MF08: 0805 MF06: 0603 Type code E : Triple Power + Surge Resistance code 5%, E24: 2 significant digits followed by no. of zeros 100 = 101_ 10K = 103 1%, E24+E96: 3 significant digits followed by no. of zeros 100 = 1000 37.4K = 3742 Tolerance F: 1% J: 5% Packaging code T: 7” Reeled taping Termination code L = Sn base (lead free) Reeled tape packaging : 8mm width paper taping 5,000pcs per 7” reel.
Page 7 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 SURGE POWER CHART TEST AND REQUIREMENTS ( AEC Q200 )
Page 8 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017
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Page 10 of 10 ASC_MF06 08 12E_AUTO_V01 SEP - 2017 PACKAGING Paper Tape specifications (unit :mm) Component Size / Series W F E P0 D 1.0 0.050.1 1.0 0.050.1 1.0 0.050.1 Component Size / Series A B P1 T Reel dimensions Symbol A B C D Taping Quantity - Chip resistors 5,000 pcs/reel