Smt Resistor
Smt Resistor
I am running SMT Boards thought a Reflow oven and getting Solder Balls . how can I stop them (Not lead free )?
Yes Not a lead free operation I am running boards and I keep getting solder balls on some of the smaller resistor. Isn’t there a process for this or what could I do.
Is your solder paste old (past its expiration date)?
Is the solder mask for the paste made to the right tolerances?
Is part of the pre-processing of the blank board to the new ROHS standards incompatible with the lead solder paste?
Those are the only things I can think of, because my main area of expertise is not in manufacturing — I’m mainly a designer/analyst who makes it out to the factory floor occasionally.
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5000x 47k Ohm 1/16W 0603 SMT Resistor ±1% 473 AC3817 $15.58 |
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5000x 39 Ohm 1/16W 0603 SMT Resistor ±1% 39R 390 AC3780 $15.58 |
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5000x 18k Ohm 1/16W 0603 SMT Resistor ±1% 183 AC3812 $15.58 |
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5000x 12 Ohm 1/16W 0603 SMT Resistor ±1% 12R 120 AC3774 $15.58 |
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5000x 100k Ohm 1/16W 0603 SMT Resistor ±1% M1 104 AC3821 $15.58 |
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5000x 3.9k Ohm 1/16W 0603 SMT Resistor ±1% 3k9 392 AC3804 $15.58 |
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5000x 39k Ohm 1/16W 0603 SMT Resistor ±1% 393 AC3816 $15.58 |
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5000x 820k Ohm 1/16W 0603 SMT Resistor ±1% M82 824 AC3832 $15.58 |
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5000x 0 Ohm 1/16W 0603 SMT Resistor ±1% 0R 0R0 AC3772 $15.58 |
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5000x 47 Ohm 1/16W 0603 SMT Resistor ±1% 47R 470 AC3781 $15.58 |
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5000x 270 Ohm 1/16W 0603 SMT Resistor ±1% 270R 271 AC3790 $15.58 |
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5000x 560 Ohm 1/16W 0603 SMT Resistor ±1% 560R 561 AC3794 $15.58 |
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5000x 560k Ohm 1/16W 0603 SMT Resistor ±1% M56 564 AC3830 $15.58 |
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5000x 180 Ohm 1/16W 0603 SMT Resistor ±1% 180R 181 AC3788 $15.58 |
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5000x 4.7k Ohm 1/16W 0603 SMT Resistor ±1% 4k7 472 AC3805 $15.58 |
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5000x 180k Ohm 1/16W 0603 SMT Resistor ±1% M18 184 AC3824 $15.58 |
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5000x 220k Ohm 1/16W 0603 SMT Resistor ±1% M22 224 AC3825 $15.58 |
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5000x 150 Ohm 1/16W 0603 SMT Resistor ±1% 150R 151 AC3787 $15.58 |
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5000x 120 Ohm 1/16W 0603 SMT Resistor ±1% 120R 121 AC3786 $15.58 |
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5000x 3.3k Ohm 1/16W 0603 SMT Resistor ±1% 3k3 332 AC3803 $15.58 |
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5000x 15 Ohm 1/16W 0603 SMT Resistor ±1% 15R 150 AC3775 $15.58 |
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100 x SMD SMT 0402 Chip Resistors Surface Mount 100R ohm ohms 1/16W +/-5% RoHs $1.88 |
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50 x SMD SMT 0402 Chip Resistors Surface Mount 1R 1Rohm ohms 1/16W +/-5% RoHs $0.99 |
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5000x 68k Ohm 1/16W 0603 SMT Resistor ±1% 683 AC3819 $15.58 |
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50 x SMD SMT 0402 Chip Resistors Surface Mount 100R ohm ohms 1/16W +/-5% RoHs $0.99 |
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100 x SMD SMT 0402 Chip Resistors Surface Mount 10R 10Rohm ohms 1/16W +/-5% RoHs $1.88 |
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200 x SMD SMT 0402 Chip Resistors Surface Mount 1R 1Rohm ohms 1/16W +/-5% RoHs $2.98 |
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500 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $4.38 |
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50 x SMD SMT 0402 Chip Resistors Surface Mount 10R 10Rohm ohms 1/16W +/-5% RoHs $0.99 |
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100 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $2.48 |
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500 x SMD SMT 0402 Chip Resistors Surface Mount 1000R ohm ohms 1/16W +/-5% RoHs $4.38 |
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100 x SMD SMT 0402 Chip Resistors Surface Mount 1R 1Rohm ohms 1/16W +/-5% RoHs $1.88 |
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5000 x SMD SMT 0201 Chip Resistors Surface Mount 0R 0Rohm ohms 0.05W +/-5% RoHs $11.38 |
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5000x 1M Ohm 1/16W 0603 SMT Resistor ±1% 1M0 105 AC3833 $15.58 |
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1000 x SMD SMT 0402 Chip Resistors Surface Mount 0R 0Rohm ohms 1/16W +/-5% RoHs $6.38 |
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100 x SMD SMT 0402 Chip Resistors Surface Mount 1000R ohm ohms 1/16W +/-5% RoHs $1.88 |
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5000 x SMD SMT 0402 Chip Resistors Surface Mount 0R 0Rohm ohms 1/16W +/-5% RoHs $11.38 |
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50 x SMD SMT 0402 Chip Resistors Surface Mount 0R 0Rohm ohms 1/16W +/-5% RoHs $0.99 |
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5000 SMD SMT 0402 Chip Resistors Surface Mount 10R 10Rohm ohms 1/16W +/-5% RoHs $11.38 |
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200 x SMD SMT 0402 Chip Resistors Surface Mount 100R ohm ohms 1/16W +/-5% RoHs $2.98 |
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500 x SMD SMT 0402 Chip Resistors Surface Mount 1R 1Rohm ohms 1/16W +/-5% RoHs $4.38 |
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5000 x SMD SMT 0402 Chip Resistors Surface Mount 1000R ohm ohms 1/16W +/-5% RoHs $11.38 |
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50 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $1.88 |
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1000 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $7.88 |
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200 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $3.48 |
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50 x SMD SMT 0402 Chip Resistors Surface Mount 1000R ohm ohms 1/16W +/-5% RoHs $0.99 |
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1000 x SMD SMT 0402 Chip Resistors Surface Mount 1000R ohm ohms 1/16W +/-5% RoHs $6.38 |
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5000 x SMD SMT 0201 Chip Resistors Surface Mount 1R 1Rohm ohms 0.05W +/-5% RoHs $11.38 |
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200 x SMD SMT 0201 Chip Resistors Surface Mount 0R 0Rohm ohms 0.05W +/-5% RoHs $3.48 |
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5000 x SMD SMT 0402 Chip Resistors Surface Mount 1R 1Rohm ohms 1/16W +/-5% RoHs $11.38 |
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Box-all Enclosure for Surface Mount Components 1206 0805 0603 0402 0201 Size + Free Tweezers + 198 White Labels 144 Compartments with Lid Hold up to 300pcs 1206 Resistor Capacitor $32.95 Great Surface Mount Components Organizer, BOX_ALL enclosure includes total 144 compartments in one box, each compartment with individual lid and label Outside size: 22.4cm (8.7″) x 14.5 cm (5.7″) x 3.8 cm (1.5″) Each compartment measures 0.72″ (h) x 0.657″ (W) x 0.4″(d) or 18.3mm (h) x 16.7mm (W) x 10.2mm (d), can hold up to 300pcs of 1206 size resistors/capacitors Great for storing 1206/0805/0… |
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New Mastech Ms8910 SMD Rc Resistance Capacitance Meter Tester Auto Scan 1 Yr War USA Ship Warranty $39.99 Surface mount devices are usually tiny and without wire leads, making it much more difficult to test and identify SMD than conventional components. The MS8910 gives users an easy way to sort and evaluate loose components and to perform on-board measurements and debugging. Precise tips made of non-magnetic steel are able to pick and reliably contact even smallest SMD components, or take measurement… |
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Brand New SMD SMT 0603 Size, 144 Values, 100pc/value 1% Sample Resistor Kit Distributed in Box-all Enclosure E96 Serial 0ohm to 1mohm Designer Kit Free Tweezers $119.00 144 values 0603 size 1% 100PC/Value Resistor Kit in BOX-ALL Enclosure;Those resistor are 1% ±100ppm/°C thick film surface mount resistors (RoHS Compliance) separately stored in BOX-ALL enclosure. Each component value is printed on lable on each lid. Easy to locate and access any value components. Easy to transport the enclosure to other places. Put it on a shelf to keep the bench top clean. … |
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SMT Resistor 10K Ohms, 25-piece Strip (1206) $0.18 10K Ohms, 5%, 1206 SMT Resistor. These come in a strip of 25 pieces…. |
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0805 a practical SMD chip resistor and capacitor book kit, electronic component $29.90 Surface Mount 0805 Resistor and Capacitor Sample Book Resistors: YAGEO 0805 JR-07 serial resistor. 63 values ranging from 0R to 2MR, RoHS Compliance, The total number of Resistor is 3025 pcs 0805 (2.0×1.25mm) 17 values ranging from 15pF to 1uF, RoHS Compliance, The total number of capacitor is 700 pcs all capacitors are made by SAMSUNG/muRata, a leading global capa… |
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SMT Resistor 470 Ohms, 25-piece Strip (1206) $0.18 470 Ohms, 5%, 1206 SMT Resistor. These come in a strip of 25 pieces…. |
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Resistor Kits $99.99 Our Super SMT Resistor KitsTM are made based on the world’s only special container, Super SMT Component EnclosureTM, which has 128 individually lidded coverlets and one final top cover…. |
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Resistor SMT MICRO 2R2J-TP 1/10w 936 (Old 750G10297A) … |
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Putting buried resistors into your printed circuit board (TechEdge book series) … |