Features Additional Information Compact, space-saving1210 footprint Click these links for more information: Low prole and symmetricaldesign Small size enables fast responsetime to thermal runaway events Ultra-low resistance PRODUCT TECHNICAL INVENTORY SAMPLES CONTACT SELECTOR LIBRARY RoHS compliant* Agency recognition: P-TCO-U Series - Polymeric Thermal Cutoff Device Electrical Characteristics I Thermal Cutoff Max. Time To Trip Resistance Certifications hold Vmax Imax Model at 23 C at 3 A at 2 A at 23 C Ohms at 23 C cUL TV R R Volts Amps Amps C C Amps Seconds E174545 R50405491 Min. 1Max. P-TCO-U350/12 12 50 3.5 75 20 90 20 17.0 5.0 0.002 0.022 P-TCO-U400/12 12 50 4.0 80 15 95 15 20.0 5.0 0.002 0.018 P-TCO-U450/12 12 50 4.5 85 15 100 10 22.5 2.0 0.002 0.014 Environmental Characteristics Operating Temperature......................................... -40 C to +85 C Storage Condition Before Opening ............................................... +40 C max. / 70 % RH max. After Opening................................................... +40 C max. / 10 % RH max. Floor Condition After Opening .............................. Consumption within 4 weeks at floor condition +30 C max. / 60 % RH max. Passive Aging....................................................... +85 C, 1000 hours............................................... 10 % typical resistance change Humidity Aging...................................................... +85 C, 85 % R.H. 100 hours ............................... 15 % typical resistance change Thermal Shock ..................................................... +85 C to -40 C, 20 times.................................... 30 % typical resistance change Solvent Resistance............................................... MIL-STD-202, Method 215 ................................... No change (marking still legible) Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change (R <R<R ) min 1max Condition A Moisture Sensitivity Level (MSL) .......................... See Note ESD Classification - HBM..................................... 6 Test Procedures and Requirements Test Test Conditions Accept/Reject Criteria Visual/Mech.......................................................... Verify dimensions and materials........................... Per MF physical description Resistance............................................................ In still air 23 C................................................. R R R min 1max Time to Trip........................................................... At specified current, Vmax, 23 C.........................T max. time to trip (seconds) Hold Current ......................................................... 30 min. at I ...................................................... No trip hold Trip Cycle Life....................................................... V , I , 100 cycles.......................................... No arcing or burning max max Trip Endurance ..................................................... V , 48 hours ..................................................... No arcing or burning max Solderability.......................................................... 245 C 5 C, 5 seconds ...................................... 95 % min. coverage Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www.bourns.com * RoHS Directive 2015/863, Mar 31, 2015 and Annex. **Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. WARNING Specifications are subject to change without notice. Users should verify actual device performance in their specific Cancer and Reproductive Harm applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last www.P65Warnings.ca.gov page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. *RoHS COMPLIANT & **HALOGEN FREEApplications Thermal protection for USB-C 2.0, 3.0 and 3.1 cables and ports Mobile device fast charging port protection P-TCO-U Series Polymeric Thermal Cutoff Device Product Dimensions AB C D E Model Min. Max. Min. Max. Min. Max. Min. Min. Max. P-TCO-U350/12 3.00 3.43 2.35 2.80 0.60 1.10 0.25 0.05 0.45 P-TCO-U400/12 (0.118) (0.135) (0.093) (0.110) (0.024) (0.043) (0.010) (0.002) (0.018) P-TCO-U450/12 MM DIMENSIONS: (INCHES) Top View Side View Bottom View Terminal material: Recommended Pad Layout ENIG-plated terminals A C D E 1.0 0.05 1.0 0.05 (.039 .002) (.039 .002) B 2.5 0.1 (.098 .004) 2.0 0.1 (.079 .004) Packaging Quantity 3500 pcs. per reel Thermal Derating Table - I (Amps) hold Ambient Operating Temperature Model -40 C -20 C 0 C 23 C 40 C 50 C 60 C 70 C 85 C P-TCO-U350/12 5.10 4.65 4.13 3.50 2.98 2.65 2.50 2.00 1.75 P-TCO-U400/12 5.80 5.25 4.70 4.00 3.40 3.10 2.80 2.28 2.00 P-TCO-U450/12 6.30 5.65 4.95 4.50 3.83 3.40 2.95 2.50 2.05 Typical Part Marking How to Order Represents total content. Layout may vary. P-TCO - U 450 / 12 - 2 Polymeric PART IDENTIFICATION: Thermal Cutoff P-TCO-U350/12 = S12 P-TCO-U400/12 = U12 Device P-TCO-U450/12 = X12 U = 1210 footprint Surface Mount Component X12 MANUFACTURING DATE CODE IS Hold Current, I LOCATED ON PACKING LABEL. hold 350 - 450 (3.50 Amps - 4.50 Amps) Maximum Voltage, V max 12 = 12 Volts Packaging -2 = T ape and Reel Packaged per EIA 481 Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.