SinglFuseTM SF-3812FG-T Series Features n Single blow fuse for overcurrent protection n EIA 3812 (10030 metric) footprint n Ceramic tube design for fast acting fusing speed and low voltage applications 0A H3 n UL 248-14 listed n Surface mount packaging for automated assembly n RoHS compliant* and halogen free** SF-3812FG-T Series - Fast Acting & Low Voltage SMD Fuses Electrical Characteristics Rated Current (A) Model SF-3812FG2000T-2 20 SF-3812FG2500T-2 25 SF-3812FG3000T-2 30 Fusing Time Open within 60 sec. at 200 % rated current Resistance () Typ.*** Rated Voltage 0.0033 0.0022 0.0016 125 VAC Certifications Interrupting Rating Typical I2t (A2s) **** 100 A @ 125 VAC 300 A @ 100 VDC 18 3 45 3 101 3 100 A @ 125 VAC 100 A @ 100 VDC cUL E198545 *** Resistance value measured with 10 % rated current at 25 C ambient. Tolerance 30 %. **** Melting I2t calculated at 10 times rated current. Reliability Testing No. Test Test Condition Temperature setup: 235 5 C Time setup: 10 1 sec. 1 Solderability 2 Resistance to soldering heat Temperature setup: 235 5 C Time setup: 30 5 sec. 3 Thermal shock Temperature setup: 25 C ~ -65 C ~ 25 C ~ 125 C Time setup: -65 C (30 min) ~ 25 C (5 min) ~ 125 C (30 min) ~ 25 C (5 min), 5 cycles 4 Humidity unload 5 Requirement After test terminal electrode wetting area must be greater than 95 % Test Reference IEC 60068-2-58 DCR change 15 % IEC 60068-2-58 DCR change 15 % No mechanical damage MIL-STD-202G Method 107G Test Condition B Heat (85 0.5 C) High Humidity (85 1 % RH) 240 hours DCR change 15 % No mechanical damage MIL-STD-202G Method 103B Test Condition A Salt spray Salt spray concentration: 5 1 % Test liquid temperature: 35 0.5 C 96 hours DCR change 15 % No mechanical damage MIL-STD-202G Method 101E Test Condition A 6 Bending The board shall be bent by 1 mm at a rate of 1 mm/sec. DCR change 15 % IEC 60127-4 7 Vibration Frequency setup: 10 ~ 55 ~ 10 Hz Time setup: 1 Minute/cycle (X-Y-Z, 120 cycles, 6 hours) DCR change 15 % No mechanical damage MIL-STD-202G Method 201A Agency Recognition UL File Number..................................................................E198545 Asia-Pacific: Tel: +886-2 2562-4117 * Email: asiacus@bourns.com 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. SinglFuseTM SF-3812FG-T Series Applications n Storage Systems n PC Servers n Voltage Regulator Modules n Power Supplies SF-3812FG-T Series - Fast Acting & Low Voltage 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 Represents total content. Layout may vary. Construction SF - 3812 FG 2000 T - 2 H20A 0A H3 SinglFuseTM Product Designator SMD Footprint 3812 = EIA 3812 (10030 metric) Rated Current Part Marking 20 A H 10 A 25 A H 15 A 30 A H 20 A END CAP (GOLD-PLATED BRASS) Ceramic Tube Fuse Blow Type FG = Fast Acting & Low Voltage Rated Current 2000 ~ 3000 (20 A ~ 30 A) Structure Type T = Ceramic Tube Packaging Quantity Packaging Type - 2 = Tape & Reel 2,500 pieces per 13-inch reel Product Dimensions Recommended Pad Layout 6.10 (.240) 3.10 0.20 (.122 .008) 10.10 0.40 (.398 .016) H20A 1.75 0.20 (.069 .008) 3.43 (.135) 2.65 0.20 (.104 .008) 3.10 0.20 (.122 .008) DIMENSIONS: 3.25 (.128) MM (INCHES) DIMENSIONS: MM (INCHES) 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. SF-3812FG-T SeriesSMD - Fast Acting & Low Voltage SMD Fuses 3312 - 2 mm Trimming Potentiometer Average I2t vs. t Curves Average Pre-Arcing Time vs. Current Curves 30 30 A A 25 25 A A 20 20 A A 10000000 10000000 10000 10000 1000000 1000000 100 100 100000 100000 1010 I2t (A22s) I2t (A s) PRE-ARCING TIME (SECONDS) PRE-ARCING TIME (SECONDS) 1000 1000 30 30 A A 25 25 A A 20 20 A A 10000 10000 1 1 0.10.1 1000 1000 0.01 0.01 100 100 0.001 0.001 0.0001 0.0001 1010 100100 CURRENT CURRENT (A)(A) 1000 1000 1010 0.001 0.001 0.01 0.01 0.10.1 1 1 1010 100 100 1000 10000 10000 1000 TIME (SECONDS) TIME (SECONDS) 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. SF-3812FG-T Series - Fast Acting & Low Voltage SMD Fuses Solder Reflow Recommendations tp TP CRITICAL ZONE T L TO TP RAMP-UP Temperature TL tL TS MAX. Profile Feature Preheat / Soak: Temperature Min. (Tsmin) Temperature Max. (Tsmax) Time (ts) from (Tsmin to Tsmax) Ramp Up Rate (TL to Tp) RAMP-DOWN TS MIN. Ramp Up Rate (Tsmax to TL) Liquidous Temperature (TL) Time (tL) maintained above TL ts PREHEAT Peak Package Body Temperature (Tp) 25 C t 25 C TO PEAK Time within 5 C of actual peak temperature (Tp) Time Pb-Free Assembly 150 C 200 C 60~180 seconds 3 C / second max. 5 C / second max. 217 C 60~150 seconds 260 C +0/-5 C 10~30 seconds* Ramp Down Rate (Tp to TL) 6 C / second max. Time 25 C to Peak Temperature 8 minutes max. Do not exceed 260 C * Tolerance for peak profile temperature (Tp ) is defined as a supplier minimum and a user maximum. Solder Wave Recommendations Peak Temperature (Dwell Time) 300 280 260 240 Temperature (C) 220 200 180 160 140 Profile Feature Preheat: Temperature Max. (Tsmax) Time (Min. to Max.) Pb-Free Assembly 150 C 60~90 seconds Solder Pot Temperature 260 C max. Solder Dwell Time 2~3 seconds 120 100 80 60 40 20 0 20 40 60 PREHEAT TIME 80 100 120 140 160 180 200 220 240 COOLING TIME Time (Sec.) 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. SF-3812FG-T Series - Fast Acting & Low Voltage SMD Fuses Current Rating Thermal Derating Curve 120 DERATING (%) 100 80 60 40 25 C 20 0 -60 -40 -20 0 20 40 60 80 100 120 140 AMBIENT TEMPERATURE (C) Pulse Cycle Withstand Capability NUMBER OF PULSES 100,000 10,000 1,000 100 10 % 100 % PULSE I2t / AVERAGE MELTING I2t 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. SF-3812FG-T Series - Fast Acting & Low Voltage SMD Fuses Packaging Specifications 330.00 1.50 (12.992 .059) DIA. 100.00 1.50 (3.937 .059) 30.00 1.00 (1.182 .039) 1.50 0.10 DIA. (.059 .004) 4.00 0.10 (.157 .004) 1.75 0.10 (.069 .004) SECTION B-B 0.30 0.05 (.012 .002) B 1.50 0.10 (.059 .004) DIA. 11.50 0.10 (.453 .004) SECTION A-A 10.40 0.10 (.409 .004) A A 24.00 0.30 (.945 .012) B 8.00 0.10 (.315 .004) REV. 03/19 2.00 0.10 (.079 .004) 3.40 0.10 (.134 .004) 3.40 0.10 (.134 .004) DIMENSIONS: MM (INCHES) 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. Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns(R) products manufactured by or on behalf of Bourns, Inc. and its affiliates (collectively, "Bourns"). Unless otherwise expressly indicated in writing, Bourns(R) products and data sheets relating thereto are subject to change without notice. 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