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P850-U260-WH Datasheet(PDF) 4 Page - Bourns Electronic Solutions |
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P850-U260-WH Datasheet(HTML) 4 Page - Bourns Electronic Solutions |
4 / 6 page Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TBU™ P650-U and P850-U Protectors Product Dimensions Recommended Pad Layout Pad # Apply 1 In1 2NC 3 Out1 4 Out2 5NC 6 In2 NC = Solder to PCB; do not make electrical connection, do not connect to ground. Pad Designation TBU™ devices have matte-tin termination finish. Suggested layout should use non-solder mask define (NSMD). Recommended stencil thickness is 0.10-0.12 mm (.004-.005 in.) with stencil opening size 0.025 mm (.0010 in.) less than the device pad size. As when heat sinking any power device, it is recommended that, wherever possible, extra PCB copper area is allowed. For mini- mum parasitic capacitance, do not allow any signal, ground or power signals beneath any of the pads of the device. Block Diagram Thermal Resistances Symbol Parameter Value Unit Rth(j-a) Junction to leads (package) 105 °C/W Junction to leads (per TBU) 202 °C/W Reflow Profile Profile Feature Pb-Free Assembly Average Ramp-Up Rate (Tsmax to Tp) 3 °C/sec. max. Preheat - Temperature Min. (Tsmin) - Temperature Max. (Tsmax) - Time (tsmin to tsmax) 150 °C 200 °C 60-180 sec. Time maintained above: - Temperature (TL) - Time (tL) 217 °C 60-150 sec. Peak/Classification Temperature (Tp) 260 °C Time within 5 °C of Actual Peak Temp. (tp) 20-40 sec. Ramp-Down Rate 6 °C/sec. max. Time 25 °C to Peak Temperature 8 min. max. PIN 1 A B D C 4 3 6 1 5 2 E J J N N H P G K L F TOP VIEW SIDE VIEW BOTTOM VIEW H DIMENSIONS: MM (INCHES) Dim. Min. Typ. Max. A 6.15 (.242) 6.25 (.246) 6.35 (.250) B 7.65 (.301) 7.75 (.305) 7.85 (.309) C 0.80 (.031) 0.85 (.033) 0.90 (.035) D 0.000 (.000) 0.025 (.001) 0.050 (.002) E 0.50 (.020) 0.55 (.022) 0.60 (.024) F 1.20 (.047) 1.25 (.049) 1.30 (.051) G 4.20 (.165) 4.25 (.167) 4.30 (.169) H 2.45 (.096) 2.50 (.098) 2.55 (.100) J 0.20 (.008) 0.25 (.010) 0.30 (.012) K 0.45 (.018) 0.50 (.020) 0.55 (.022) L 0.65 (.026) 0.70 (.028) 0.75 (.030) N 0.20 (.008) 0.25 (.010) 0.30 (.012) P 0.70 (.028) 0.75 (.030) 0.80 (.031) Q 3.20 (.126) 3.25 (.128) 3.30 (.130) 2.525 (.099) 0.50 (.020) 1.25 (.049) 0.575 (.023) 0.375 (.015) 0.70 (.028) 4.275 (.168) 6 4 1 3 TBU™ Device Line Side Load Side |
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