UMZ

Non resettable fuses UMZ 250 www.schurter.com/pg0_2 Surface Mount Fuse with Clip, 11.1 x 3.8 mm, Time-Lag T, UMZ 250 = UMT 250 (Au) + UMC 250 IEC 60127-4 · 250 VAC · 125 VDC · Time-Lag T Description - Explanation VDE/UL Approvals UMT 250, UMT 250 (Au), UMC 250 , see variants - High breaking capacity of 200 A @ 250 VAC (IEC) - UL approval for 277 VAC and 250 VDC Applications References Weblinks - Primary Protection on SMD PCB - Industrial electronic General Product Information Packaging Details Approvals, RoHS, CHINA-RoHS, e-Store, Distributor-Stock-Check, Accessories, Product Change Notification (PCN) Standards - IEC 60127-4/2 - UL 248-14 - CSA C22.2 no. 248.14 Approvals - VDE License Number: 40013121 - UL File Number: E39328 Technical Data Rated Voltage Rated Current Breaking Capacity Characteristic Mounting Admissible Ambient Air Temp. Climatic Category Material: Housing Material: Terminals Storage Conditions Product Marking 250 VAC, 125 VDC 0.315 - 4 A 200 A Time-Lag T PCB,SMT -40 °C to 85 °C 40/085/21 acc. to IEC 60068-1 Ceramic Tin-Plated Copper Alloy 0 °C to 60 °C, max. 70% r.h. , Current, Voltage, Characteristic, Breaking Capacity Soldering Methods Solderability Resistance to Soldering Heat Life Test Moisture Resistance Test Terminal Strength Mechanical Shock Resistance to Solvents Flammability Reflow 245 °C / 3 sec acc. to IEC 60068-2-58, Test Td 260 °C / 40 sec acc. to IPC/JEDEC JSTD-020D, 1 cycle MIL-STD-202, Method 108A (1000h @ 0.42*In @ 70°C) MIL-STD-202, Method 106E (50 cycles in a temp./mister chamber) MIL-STD-202, Method 211A (Deflection of board 1 mm for 1 minute) MIL-STD-202, Method 213B (Shock 50gn, half sine wave, 11 ms) MIL-STD-202, Method 215A min. UL 94V-1 (acc. to EIA/IS-722, Test 4.12) Dimensions   11.1 mm 3.9 2 6.5 10.5 11.1 3.6 3 5.5 3 3.8 Soldering pads Fuses 4.75  UMZ 250 www.schurter.com/pg0_2 Pre-Arcing Time Rated Current In 0.315 A - 4.0 A .25 x In min. 60 min 2.0 x In max. 120 s 0.0 x In min. 10 ms 0.0 x In max. 100 ms Non resettable fuses Variants Rated Current [A] Rated Voltage [VAC] Rated Voltage [VDC] Breaking Capacity Voltage Drop .0 In max. [mV] 750 700 600 500 400 300 300 300 300 300 300 300 Voltage Drop .0 In typ. [mV] 344 320 264 216 174 174 140 130 103 90 95 83 Power Dissipation .25 In max [mW] 500 500 500 500 500 500 1000 1000 1000 1200 1500 2000 Melting I²t 0.0 Intyp. [A²s] 0.27 0.4 0.54 1.1 1.4 2.8 4.5 6.9 7.3 7.5 14 26 Order Number 0.315 0.4 0.5 0.63 0.8 1 1.25 1.6 2 2.5 3.15 4 250 250 250 250 250 250 250 250 250 250 250 250 125 125 125 125 125 125 125 125 125 125 125 125 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 3404.2411.xx 3404.2412.xx 3404.2413.xx 3404.2414.xx 3404.2415.xx 3404.2416.xx 3404.2417.xx 3404.2418.xx 3404.2419.xx 3404.2420.xx 3404.2421.xx 3404.2422.xx 1) IEC: 200 A @ 250 VAC, p.f. ≥ 0.95 / 100 A @ 125 VDC 1) UL: 200 A @ 277 VAC / 100 A @ 125 VDC / 35 A @ 250 VDC / 200 A @ 63 VAC/DC Approval Overview UMT 250 -> Fuse with tin-plated caps, Approval Status: VDE, UL LISTED, cURus, Free of CCC, PSE JET, KTL UMT 250 (Au) -> Fuse with gold-plated caps, Approval Status: VDE Mark and cURus UMC 250 -> Clip, Approval Status: VDE UG Mark and cURus UMZ 250 = UMT 250 (Au) + UMC 250 There is no approval existing for the combination fuse and clip UMZ 250, but the fuse and the clip are fully approved independently at VDE/UL. See details above. In the reflow soldering process, the fuse must have gold-plated caps, otherwise fuse and clip would be soldered together. For fuse replacement in the field, a standard UMT 250 fuse with tin-plated caps can be used. Packaging Unit .xx = .11 Plastic Bag (100 pcs.) .xx = .22 Blister Tape 33 cm Reel (1000 pcs.) 2 Fuses Non resettable fuses UMZ 250 www.schurter.com/pg0_2 Time-Current-Curves 10000 315 mA 400 mA 500 mA 630 mA 800 mA 1.0 A 1.25 A 1.6 A 2.0 A 2.5 A 3.15 A 4.0 A 1000 100 10 Time in Seconds 1 0.1 0.01 0.001 0.0001 0.1 1 10 100 Current in Amperes The specifications, descriptions and illustrations indicated in this document are based on Fuses current information. All content is subject to modifications and amendments.