MPSR Series Polymeric PTC Feature and Applications UL E223037 • ROHS Compliant (Lead Free) Product • Electronic applications: Rechargeable battery packs, Lithium cell and battery packs • Low profile, Solid state • Operation Current: 1.2A to 4.2A • Maximum Operating Voltage: 15V and 30V • Temperature Range: -40ºC to 85ºC PART NUMBERING SYSTEM MPSR XXX Meritek Series Current Rating Rev.7 MPSR Series Polymeric PTC Electrical Characteristics (23ºC) Part Number MPSR120 MPSR175 MPSR200 MPSR350 MPSR420 Resistance Tolerance Hold Current Trip Current Max. Time to Trip Rated Voltage Maximum Current Typical Power RMIN RMAX R1MAX IH, A 1.20 1.75 2.00 3.50 4.20 IT, A 2.70 3.80 4.40 6.30 7.60 at 5xIH, S 5.0 5.0 4.0 3.0 6.0 V MAX, Vdc 15 15 30 30 30 IMAX, A 100 100 100 100 100 Pd, W 1.2 1.5 1.9 2.5 2.9 ohms 0.085 0.050 0.030 0.017 0.012 ohms 0.160 0.090 0.060 0.031 0.024 ohms 0.220 0.120 0.100 0.050 0.040 IH=Hold current-maximum current at which the device will not trip at 23ºC still air. IT=Trip current-minimum current at which the device will always trip at 23ºC still air. VMAX=Maximum voltage device can withstand without damage at its rated current. I MAX= Maximum fault current device can withstand without damage at rated voltage (VMAX). Pd=Maximum power dissipated from device when in tripped state in 23ºC still air environment. RMIN=Minimum device resistance at 23ºC. R1MAX=Maximum device resistance at 23ºC, 1 hour after tripping. Physical specifications: Lead material: 0.13mm nominal thickness, quarter-hard nickel. Insulating material: Polyester tape Rev.7 MPSR Series Polymeric PTC Product Dimensions (Millimeters) Part Number MPSR120 MPSR175 MPSR200 MPSR350 MPSR420 A Min 19.9 20.9 21.3 28.4 30.6 B Max 22.1 23.1 23.4 31.8 32.4 Min 4.9 4.9 10.2 13.0 12.9 C Max 5.2 5.2 11.0 13.5 13.6 Min 0.6 0.6 0.5 0.5 0.5 D Max 1.0 1.0 1.1 1.1 1.1 Min 5.5 4.1 5.0 6.3 5.0 F Max 7.5 5.5 7.6 8.9 7.5 Min 3.9 3.9 4.8 6.0 6.0 Max 4.1 4.1 5.4 6.6 6.7 Rev.7 MPSR Series Polymeric PTC Thermal Derating Curve Typical Time-To-Trip at 23ºC A A = MPSR120 B = MPSR175 C = MPSR200 D = MPSR350 E = MPSR420 B C D E 100 Time-to-trip (S) 10 1 0.1 0.01 0.001 1 10 100 Fault Current (A) Rev.7