JK250-145U

JK250 Series Polyer Positive Temperature Coefficient Features Radial leaded Devices Cured,flame retardant epoxy polymer insulating material meets UL94V-0 requirements Bulk packaging,or tape and reel available on most models Agency Approval:UL,ROHS Applications Almost anywhere there is a low voltage power supply, up to DC60V and a load to be protested, including: Security and fire alarm systems Analog and digital line cards Modems and DSL Dimensions Fig. 2 Fig.1 Fig .4 Fig .3 Uni t ： mm Model Dimensions（mm） A(max) 7.4 B(max) 12.7 C(max) 7.4 JK250-040U Lead material Shape 4.5 D(typ) 5.1 Tinned metal(mm) 22AWG/Φ 0.6 Fig 1 12.7 4.5 5.1 22AWG/Φ0.6 1 7.4 12.7 4.5 5.1 22AWG/Φ0.6 1/2 JK250-050U JK250-060U 7.4 7.4 12.7 12.7 4.5 4.5 5.1 5.1 22AWG/Φ0.6 22AWG/Φ0.6 1/2 1/2 JK250-080U 7.4 12.7 4.5 5.1 22AWG/Φ0.6 2 JK250-090U JK250-100U 7.4 7.8 12.7 12.6 4.5 4.5 5.1 5.1 22AWG/Φ0.6 22AWG/Φ0.6 2 1 JK250-020U JK250-030U 1/4 JK250 Series JK250-110U 7.0 12.6 4.5 5.1 22AWG/Φ0.6 4 JK250-120U 7.0 12.6 4.5 5.1 22AWG/Φ0.6 4 JK250-145U 7.0 12.6 4.5 5.1 22AWG/Φ0.6 4 JK250-180T 10.2 14.5 3.8 5.1 22AWG/Φ0.6 2 JK250-180U 9.0 11.0 4.5 5.1 22AWG/Φ0.6 4 JK250-200U 12.0 17.0 4.5 5.1 22AWG/Φ0.6 3 JK250-400U 12.0 17.0 4.5 5.1 22AWG/Φ0.6 3 JK250-600U 16.0 18.0 4.5 5.1 22AWG/Φ0.6 3 JK250-800U 20.0 22.5 4.5 5.1 20 AWG/Φ0.8 3 JK250-1000U 20 22.5 4.5 5.1 20 AWG/Φ0.8 3 JK250-1200U 22 28 4.5 5.1 20 AWG/Φ0.8 3 JK250-1500U 25 30 4.5 5.1 20 AWG/Φ0.8 3 JK250-2000U 26 32 4.5 10.2 20 AWG/Φ0.8 3 Note: Dimensions in the A, B, C are the maximum sizes, all typical values of D is at the tolerance of ± 0.75mm. Thermal Derating Chart-IH（A） Model JK250 series Maximum ambient operating temperature（℃） -40℃ -20℃ 0℃ 25℃ 30℃ 40℃ 50℃ 60℃ 70℃ 85℃ 148% 132% 117% 100% 91% 85% 77% 68% 61% 45% Electrical Characteristic Model IH（A） IT(A) VMAX（V） IMAX （A） Pd （W） Maximum Time-to-trip Current （A） Resistance(Ω) Time（S） RMIN- RMAX JK250-020U 20 45 250 3 1.0 0.5 0.5 50-160 JK250-030U 30 65 250 3 1.0 0.5 0.5 40-120 JK250-040U 40 80 250 3 1.0 0.5 1.5 30-60 JK250-050U 50 100 250 3 1.0 0.5 2 25-50 JK250-060U 60 120 250 3 1.0 0.5 2 20-60 JK250-080U 80 160 250 3 1.0 1 0.5 12-22 JK250-090U 90 180 250 3 1.0 1 0.8 10-20 JK250-100U 100 200 250 3 1.0 1 1 10-20 JK250-110U 110 220 250 3 1.0 1 2.0 6-12 JK250-120U 120 240 250 3 1.0 1 2.0 6-11 JK250-145U 145 290 250 3 1.0 1 5.0 3.5-6.5 2/4 JK250 Series JK250-180T 180 650 250 3 1.8 3 3.0 1.0-2.2 JK250-180U 180 650 250 3 1.8 3 1.5 2.0-4.0 JK250-200U 200 400 250 5 2.4 3 5 3-6 JK250-400U 400 800 250 5 2.8 3 8 1-3 JK250-600U 600 1200 250 5 3.2 3 12 0.6-2.0 JK250-800U 800 1600 250 5 3.6 4 18 0.4-1.0 JK250-1000U 1000 2000 250 7 3.6 5 20 0.3-0.8 JK250-1200U 1200 2400 250 7 3.6 6 20 0.2-0.8 JK250-1500U 1500 3000 250 7 4.8 7.5 20 0.2-0.6 JK250-2000U 2000 4000 250 10 4.8 10 20 0.2-0.4 IH=Hold current:Maximum current at which the device will not interrupt in 25℃ still air. IT=Trip current:Minimum current at which the device from low resistance to high resistance in 25℃ still air. VMAX=Maximum continuous voltage device can withstand without damage at rated current. IMAX=Maximum fault current device can withstand without damage at rated voltage. Maximum Time-to-trip:Maximum time to trip at assigned current. Pd=Typical power dissipation:Typical amount of power dissipated from the device when in 25℃ still air environment. RMIN=Minimum resistance of device at 25℃ prior to tripping. RMAX=Maximum resistance of device at 25℃ prior to tripping. Environmental Specifications Test Conditions Resistance change Passive Aging +85℃，1000 hours ±8% typical Humidity Aging +85℃，85%R.H.1000 hours +125℃ to -55℃，10 Times ± 8% typical Thermal Shock Solvent Resistance MIL-STD-202，Method 215F ±12% typical No change Vibration MIL-STD-202，Method 201 No change 3/4 JK250 Series Soldering method Wave Soldering Soldering Temperature:260℃~270℃ Soldering Time:≤3sec. Soldering Pos itio n: R esettab le fuse lead and the di stance fr om th e bottom ≥ 6 mm Manual soldering Soldering Temperature:250℃~280℃ Soldering Tim e: ≤3sec. Soldering Position: Resettable fuse lead and the distance from the bottom ≥ 6mm Packaging and Storage Packaging quantity JK250～020U～JK250-1 80U JK250-200U～JK250-600U 1000Pcs/Bag 500 Pcs/Bag JK250-800U～JK250-2000U 200 Pcs/Bag 4/4