Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Features 1. RoHS & Halogen-Free (HF) compliant 2. Hold current ratings from 0.08 A to 0.18A 3. High operating voltage rating :100Vdc/250Vdc 4. Resettable for over-current protection 5. Operating & storage temperature ranges: -40℃ ~ +85℃ 6. Agency recognition: UL / cUL / TUV Recommended Applications 1. Telecommunication 2. Network equipment 3. Set-top box Part Number Code K R T 2 5 0 0 0 1 2 F B Y 1 2 3 4 5 6 7 8 9 10 11 12 13 Product Type K THINKING Polymer PTC Resettable Fuse Form Factor R Radial Usage T Telecom Interrupt Voltage I hold 250 250V 600 600V 0008 0012 0018 0.08A 0.12A 0.18A 14 Appearance F Y Kink lead 15 16 Packaging B Bulk A Ammo Taping R Reel Taping Optional Suffix Y YU YR YUR YT YUT THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 37 RoHS & HF Compliant RoHS & HF & uncoated RoHS & HF & round type RoHS & HF & uncoated & round type RoHs & HF & fast trip RoHs & HF & uncoated & fast trip www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Structure and Dimensions KRT250 Series A A E B F F D C E B F D D Style 1 (Coated) A B B F C E A E D C C Style 2 (Coated) Style 3 (Uncoated) Style 4 (Uncoated) Marking: Coated device is marked with product type, max. interrupt voltage ,and I hold. (Unit: mm) A B C D E F Figure Max. Max. Typ. Min. Max. Typ. Style KRT2500008 5.8 9.6 5.0±0.8 4.7 4.6 0.6±0.02 1 KRT2500008-U 5.1 9.1 5.0±0.8 4.7 3.8 0.6±0.02 3 KRT2500008-T 5.8 9.9 5.0±0.8 4.7 4.6 0.6±0.02 1 KRT2500011 6.8 9.9 5.0±0.8 4.7 4.6 0.6±0.02 1 KRT2500011-U 5.9 9.4 5.0±0.8 4.7 3.8 0.6±0.02 3 KRT2500012 6.5 11.0 5.0±0.8 4.7 4.6 0.6±0.02 2 KRT2500012-U 6.0 10.0 5.0±0.8 4.7 3.8 0.6±0.02 4 KRT2500012-UT 6.0 10.0 5.0±0.8 4.7 3.8 0.6±0.02 4 KRT2500012-T 6.5 11.0 5.0±0.8 4.7 4.6 0.6±0.02 2 KRT2500015 6.5 11.0 5.0±0.8 4.7 4.6 0.6±0.02 2 KRT2500015-U 6.0 10.0 5.0±0.8 4.7 3.8 0.6±0.02 4 KRT2500015-T 6.5 11.0 5.0±0.8 4.7 4.6 0.6±0.02 2 KRT2500018 11.0 12.6 5.0±0.8 4.7 4.6 0.6±0.02 2 KRT2500018-U 10.4 12.6 5.0±0.8 4.7 3.8 0.6±0.02 4 KRT2500018R 11.0 12.0 5.0±0.8 4.7 3.8 0.6±0.02 1 KRT2500018UR 9.8 12.0 5.0±0.8 4.7 3.5 0.6±0.02 3 Part No. KRT600 Series A E B F D Style 1 C (Unit: mm) A B C D E Max. Max. Typ. Min. Max. KRT6000015 9.0 12.5 5.0±0.8 4.7 4.6 0.6±0.02 1 KRT6000016 16.0 12.6 5.0±0.8 4.7 6.0 0.6±0.02 1 Part No. THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 38 F Figure Style www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Electrical Characteristics at 23℃ ℃ KRT250 Series Vmax. Vinterrupt Imax. Ihold Itrip Part No. Pd (Typ.) Maximum Time to Trip Resistance Current Time Initial Ri Post Trip R1 (Vdc) (Vac) (A) (A) (A) (W) (A) (Sec.) Min. (Ω) Max. (Ω) Safety Approvals UL/cUL TUV CQC 100 250 3.00 0.08 0.16 1.00 0.35 4.00 14.00 33.00 √ √ √ KRT2500008-U 100 250 3.00 0.08 0.16 1.00 0.35 4.00 14.00 33.00 √ √ √ KRT2500008-T KRT2500008 100 250 3.00 0.08 0.16 1.00 0.35 2.50 15.00 33.00 √ √ √ KRT2500011 100 250 3.00 0.11 0.22 1.00 1.00 2.00 5.00 16.00 √ √ √ KRT2500011-U √ √ √ √ 100 250 3.00 0.11 0.22 1.00 1.00 2.00 5.00 16.00 √ KRT2500012 100 250 3.00 0.12 0.24 1.00 1.00 2.00 4.00 16.00 √ KRT2500012-U 100 250 3.00 0.12 0.24 1.00 1.00 6.00 16.00 √ KRT2500012-UT 100 250 3.00 0.12 0.24 1.00 1.00 2.00 0.70(typ.) 1.5(max.) √ √ √ √ 7.00 16.00 √ √ √ KRT2500012-T 100 250 3.00 0.12 0.24 1.00 1.00 7.00 16.00 √ √ √ KRT2500015 100 250 3.00 0.145 0.29 1.00 1.00 2.50 3.00 14.00 √ √ √ KRT2500015-U 0.70(typ.) 1.2(max.) 100 250 3.00 0.145 0.29 1.00 1.00 2.50 3.50 14.00 √ √ √ KRT2500015-T 100 250 3.00 0.145 0.29 1.00 1.00 1.50 5.40 14.00 √ √ √ KRT2500018 100 250 10.00 0.18 0.65 1.50 1.50 11.00 0.80 4.00 √ √ √ 10.00 0.18 0.65 1.50 1.50 10.00 0.80 4.00 √ √ √ KRT2500018R 100 100 250 250 10.00 0.18 0.65 1.50 3.00 2.00 0.80 4.00 √ √ √ KRT2500018UR 100 250 10.00 0.18 0.65 1.50 3.00 2.00 0.80 4.00 √ √ √ Itrip Pd (Typ.) KRT2500018-U KRT 600 series Vmax. Vinterrupt Imax. Ihold Part No. Maximum Time to Trip Resistance Current Time Initial Ri Post Trip R1 Safety Approvals (Vdc) (Vac) (A) (A) (A) (W) (A) (Sec.) Min. (Ω) Max. (Ω) KRT6000015 250 600 3.00 0.15 0.30 1.00 1.00 4.00 6.00 17.00 √ √ √ KRT6000016 250 600 3.00 0.16 0.32 1.70 1.00 7.50 4.00 18.00 √ √ √ UL/cUL TUV CQC Note: UL&cUL File No: E138827 TUV File No: R50161442, J50218395 CQC File No: 13001098048 THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 39 www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Typical Time to Trip Curves at 23℃ ℃ Ihold & Itrip Thermal Derating Curve Derating Curve for KRT250 Series Percentage of Rated Current (%) 180 2 160 140 1 120 100 80 60 1 40 2 1= KRT2500018 2=Others 20 0 -40 -20 0 20 40 60 80 100 ℃) Ambient Temperature(℃ THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 40 www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Derating Curve for KRT600 Series Percentage of Rated Current (%) 180 160 140 120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 Ambient Temperature(℃ ℃) Ihold Thermal Derating Chart (Unit: A) Ambient Temperature Part No. -40℃ -20℃ 0℃ 23℃ ℃ 40℃ 50℃ 60℃ 70℃ 85℃ KRT2500008 0.128 0.112 0.096 0.08 0.064 0.056 0.0488 0.0416 0.032 KRT2500008-U 0.128 0.112 0.096 0.08 0.064 0.056 0.0488 0.0416 0.032 KRT2500008-T 0.128 0.112 0.096 0.08 0.064 0.056 0.0488 0.0416 0.032 KRT2500011 0.176 0.154 0.132 0.11 0.088 0.077 0.0671 0.0572 0.044 KRT2500011-U 0.176 0.154 0.132 0.11 0.088 0.077 0.0671 0.0572 0.044 KRT2500012 0.192 0.168 0.144 0.12 0.096 0.084 0.0732 0.0624 0.048 KRT2500012-U 0.192 0.168 0.144 0.12 0.096 0.084 0.0732 0.0624 0.048 KRT2500012-UT 0.192 0.168 0.144 0.12 0.096 0.084 0.0732 0.0624 0.048 KRT2500012-T 0.192 0.168 0.144 0.12 0.096 0.084 0.0732 0.0624 0.048 KRT2500015 0.240 0.210 0.180 0.15 0.120 0.105 0.0915 0.0780 0.060 KRT250015-U 0.240 0.210 0.180 0.15 0.120 0.105 0.0915 0.0780 0.060 KRT250015-T 0.240 0.210 0.180 0.15 0.120 0.105 0.0915 0.0780 0.060 KRT2500018 0.288 0.252 0.216 0.18 0.144 0.126 0.1098 0.0936 0.072 KRT2500018-U 0.288 0.252 0.216 0.18 0.144 0.126 0.1098 0.0936 0.072 KRT2500018R 0.261 0.234 0.212 0.18 0.158 0.144 0.1260 0.1170 0.094 KRT2500018UR 0.261 0.234 0.212 0.18 0.158 0.144 0.1260 0.1170 0.094 KRT6000015 0.240 0.210 0.180 0.15 0.120 0.105 0.0915 0.0780 0.060 KRT6000016 0.256 0.224 0.192 0.16 0.128 0.112 0.0976 0.0832 0.064 THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 41 www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Reliability Item Standard Resistance to IEC 60068-2-58 Test Conditions / Methods Criteria Rf<R1max 260 ± 5 ℃ , 10 ± 1 sec Soldering Heat No visible damage Passive Aging IEC 60738-1 Humidity Aging IEC60068-2-78 85±5℃, 1000±24hrs ±5% typical resistance change 85±5℃, 80~85%RH,1000±5hrs ±5% typical resistance change 85±5/-40±5℃, 10 cycles, Rapid Change of IEC 60738-1 Temperature ±5% typical resistance change Duration: 30min Overload and Vmax, 120% Imax, 50 cycles UL 1434 Endurance Test Aging Test No visible damage Vmax, 300% Itrip, 6000 cycles UL 1434 Vmax, Itrip≦I≦Imax, 1000±24hrs No visible damage Packaging Devices are taped according to IEC 60286-2 standard. See table below and Figure1 to Figure 3 for details. Dimension description IEC Mark Dimension (mm) Tolerance (mm) Sprocket hole pitch P0 12.70 ±0.3 Ordinate to adjacent component lead P1 3.85 ±0.7 Device pitch KRT2500008-KRT2500018 , KRT6000015 Device pitch KRT6000016 P 12.70 ±1.0 25.40 Lead spacing F 5.00 ±0.8 Lead diameter d 0.60 ±0.02 Carrier tape width W 18.00 +1/-0.5 Top distance between tape edges W2 3.00 Max Hold-down tape width W0 12.00 ±1.0 Sprocket hole position W1 9.00 +0.75/-0.5 Abscissa to top H1 32.20 Max. Abscissa to plane (kinked lead) H0 16.00 ±0.5 Sprocket hole diameter D0 4.00 ±0.2 Lead protrusion L1 0.50 Max Tape thickness T 0.60 ±0.2 Body lateral deviation ∆h 2.00 Max. Body tape plane deviation ∆p 1.00 Max. Reel width W3 56.00 Max. 340.00 ±10 Reel diameter Arbor hole diameter n0 31.00 ±1 Core diameter n 80.00 Min. THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 42 www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Taping Specification Fig. 1 For KRT2500008, KRT2500011, KRT2500018R, KRT2500018UR P △P △P △P △P Δh Δh H1 P1 d H W2 H0 W1 W W0 L1 Fig. 2 D0 F P0 T For KRT2500012 ~ KRT2500018, KRT6000015, KRT6000016 P △P △P △P △P Δh Δh H1 d P1 H W2 H0 W1 W W0 L1 P0 D0 F T Reel Specification Fig. 3 THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 43 www.thinking.com.tw 2014.11 Polymer PTC Resettable Fuse: KRT Series Radial Lead Type For Telecom Applications Quantity Bulk Packing Series Quantity (pcs/bag) KRT2500008 ~ 0015 300 KRT2500018 200 KRT600 series 100 Reel Packing Series Quantity (pcs/reel) KRT2500008 ~ 0015 1,500 KRT2500018, KRT6000015 1,200 KRT6000016 600 Ammo Packing Series Quantity (pcs/box) KRT250 series 500 KRT600 series 500 (Unit: mm) Series W L H KRT250/KRT600 348 185 73 Warehouse Storage Conditions of Products Storage Conditions: 1. Storage Temperature: -10℃~+40℃ 2. Relative Humidity: ≦75%RH 3. Keep away from corrosive atmosphere and sunlight. Period of Storage : 1 year THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 44 www.thinking.com.tw 2014.11