T1.25A L250V SinglFuse SF-3812SP-T Series Features n Single blow fuse for overcurrent protection n EIA 3812 (10030 metric) footprint n Ceramic tube design for time lag application n UL 248-14, IEC 60127-1 and IEC 60127-4 listed n Surface mount packaging for automated assembly n RoHS compliant* and halogen free** SF-3812SP-T Series Time Lag SMD Fuses Electrical Characteristics Certifications Rated Typical Resistance Rated Interrupting 2 2 Model Current Fusing Time I t (A s) cUL TUV () Typ.*** Voltage Rating (A) **** E198545 R50421987 200 A 280 VAC Open within 200 A 250 VAC 120 sec. at 250 200 A 63 VAC SF-3812SP125T-2 1.25 0.105 5.04 3 3 200 % rated VAC 100 A 250 VDC current 100 A 125 VDC 200 A 63 VDC *** Resistance value measured with 10 % rated current at 25 C ambient. Tolerance 30 %. 2 **** Melting I t calculated at 10 times rated current. Reliability Testing No. Test Test Condition Requirement Test Reference Temperature setup: 235 5 C After test terminal electrode wetting 1 Solderability IEC 60068-2-58 Time setup: 10 1 sec. area must be greater than 95 % Resistance to Temperature setup: 235 5 C 2 DCR change 15 % IEC 60068-2-58 soldering heat Time setup: 30 5 sec. Temperature setup: 25 C ~ -65 C ~ 25 C ~ 125 C DCR change 15 % MIL-STD-202G 3 Thermal shock Time setup: -65 C (30 min) No mechanical damage Method 107G ~ 25 C (5 min) ~ 125 C (30 min) Test Condition B ~ 25 C (5 min), 5 cycles Heat (85 0.5 C) DCR change 15 % MIL-STD-202G 4 Humidity unload High Humidity (85 1 % RH) No mechanical damage Method 103B 240 hours Test Condition A Salt spray concentration: 5 1 % DCR change 15 % MIL-STD-202G 5 Salt spray Test liquid temperature: 35 0.5 C No mechanical damage Method 101E 96 hours Test Condition A The board shall be bent by 1 mm 6 Bending DCR change 15 % IEC 60127-4 at a rate of 1 mm/sec. Frequency setup: 10 ~ 55 ~ 10 Hz DCR change 15 % MIL-STD-202G 7 Vibration Time setup: 1 Minute/cycle No mechanical damage Method 201A (X-Y-Z, 120 cycles, 6 hours) Agency Recognition UL File Number ................................................................. E198545 Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com TUV File Number .......................................................... R 50421987 EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www.bourns.com WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov * RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. SinglFuse is a trademark of Bourns, Inc. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. T1.25A L250V SinglFuse SF-3812SP-T Series Applications n Protection on PCBs n Power Adapters n Power Boards n Chargers n Medical Equipment (low/medium risk)* n Battery Protection SF-3812SP-T Series Time Lag SMD Fuses Environmental Characteristics Operating Temperature ................................................................................................................................................................ -55 C to +125 C Storage Conditions Temperature ............................................................................................................................................................................ +15 C to +30 C Humidity......................................................................................................................................................................................... 20 % to 70 % Shelf Life..........................................................................................................................................................2 years from manufacturing date Moisture Sensitivity Level ...................................................................................................................................................................................... 1 ESD Classification (HBM) ............................................................................................................................................................................ Class 6 Typical Part Marking How to Order Construction END CAP Represents total content. Layout may vary. SF - 3812 SP 125 T - 2 (G O L D - P L AT ED B R A S S) SinglFuse Product Designator T1.25 A SMD Footprint L250V 3812 = EIA 3812 (10030 metric) C E R A M I C T U B E T: Time Lag Fuse Fuse Blow Type SP = Time Lag 1.25 A: Current Rating Rated Current L: Low Breaking Power 125 = 125 A 250V: Voltage Rating Structure Type Packaging Quantity T = Ceramic Tube 2 , 5 0 0 p i e c e s p e r 13 - i n c h r e e l Packaging Type - 2 = Tape & Reel Product Dimensions Recommended Pad Layout 6.10 10.10 0.40 3.10 0.20 (.240) (.398 .016) (.122 .008) T1.25 A 3.43 L250V (.135) 2.65 0.20 1.75 0.20 3.10 0.20 (.104 .008) (.069 .008) 3.25 (.122 .008) (.128) MM MM DIMENSIONS: DIMENSIONS: (INCHES) (INCHES) * Bourns products have not been designed for and are not intended for use in lifesaving, life-critical or life-sustaining applications nor any other applications where failure or product may result in personal injury or death. See Legal Disclaimer Notice www.bourns.com/docs/legal/disclaimer.pdf. malfunction of the Bourns Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.