UMZ 250 Non resettable fuses www.schurter.com/pg01_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 Standards -IEC 60127-4/2 -UL 248-14 -CSA C22.2 no. 248.14 Applications -Primary Protection on SMD PCB -Industrial electronic References General Product Information Packaging Details Weblinks Approvals, RoHS, CHINA-RoHS, e-Store, Distributor-Stock-Check, Accessories, Product Change Notification (PCN) 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 Dimensions 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) 11.1 mm 4.75 6.5 10.5 3 11.1 5.5 3 3.8 2 3.6 3.9 Soldering pads Fuses UMZ 250 Non resettable fuses www.schurter.com/pg01_2 Pre-Arcing Time Rated Current In 1.25 x In min. 2.0 x In max. 10.0 x In min. 10.0 x In max. 0.315 A - 4.0 A 60 min 120 s 10 ms 100 ms Variants Rated Current [A] Rated Voltage [VAC] Rated Voltage [VDC] 0.315 250 125 0.4 250 125 Breaking Capacity Voltage Drop 1.0 In max. [mV] Voltage Drop 1.0 In typ. [mV] Power Dissipation 1.25 In max [mW] Melting I²t 10.0 Intyp. [A²s] Order Number 1) 750 344 500 0.27 3404.2411.xx 1) 700 320 500 0.4 3404.2412.xx 0.5 250 125 1) 600 264 500 0.54 3404.2413.xx 0.63 250 125 1) 500 216 500 1.1 3404.2414.xx 0.8 250 125 1) 400 174 500 1.4 3404.2415.xx 1 250 125 1) 300 174 500 2.8 3404.2416.xx 1.25 250 125 1) 300 140 1000 4.5 3404.2417.xx 1.6 250 125 1) 300 130 1000 6.9 3404.2418.xx 2 250 125 1) 300 103 1000 7.3 3404.2419.xx 2.5 250 125 1) 300 90 1200 7.5 3404.2420.xx 3.15 250 125 1) 300 95 1500 14 3404.2421.xx 4 250 125 1) 300 83 2000 26 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 = .11Plastic Bag (100 pcs.) .xx = .22Blister Tape 33 cm Reel (1000 pcs.) Fuses UMZ 250 Non resettable fuses www.schurter.com/pg01_2 Time-Current-Curves 10000 1000 100 Time in Seconds 10 315 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 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.