Fuse Mounting Accessories Page 103 Fuse & Mounting Accessories

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/17 Surface Mount Fuses 159 Fuse and Clip Series Materials Fuse Body: Ceramic Fuse Caps/Terminals: Silver-plated Brass Clip Base: Gold-plated Clip Terminals: Nickel-plated Product Marking Brand Logo, Current Rating, 'T' Insulation Resistance (after opening) MIL-STD-202, Method 302, Test condition A (10,000 ohms, minimum) Operating Temperature -55C to 125C with proper re-rating Humidity Test 85C/ 85% RH, 1000 hours Solderability MIL-STD-202, Method 208/IPC EIA J-STD-002, Test Condition A Resistance to Solvents MIL-STD-202, Method 215 (3 solvent types) Thermal Shock MIL-STD-202, Method 107, Test Condition B3 (95 cycles -65C to +125C) Mechanical Shock MIL-STD-202, Method 213, Test Condition I (100G's peak for 6 msecs.) Vibration MIL-STD-202, Method 201, (10-55 Hz) Moisture Resistance MIL-STD-202, Methold 106, High Humidity (90-98% RH), Heat (65C) Salt Spray/ Atmosphere MIL-STD-202, Method 101, Test Condition B (48 hours) Terminal Attachment MIL-STD-202, Method 211, Test Condition A, 5 lbs applied to end caps Product Characteristics Reflow Condition Pb - free assembly Pre Heat - Temperature Min (T s(min) ) 150C - Temperature Max (T s(max) ) 200C - Time (Min to Max) (t s ) 60 - 120 seconds Average Ramp-up Rate (Liquidus Temp (T L ) to peak) 3C/second max. T S(max) to T L - Ramp-up Rate 3C/second max. Reflow - Temperature (T L ) (Liquidus) 217C - Temperature (t L ) 60 - 90 seconds Peak Temperature (T P ) 260 +0/-5 C Time within 5C of actual peak Temperature (t p ) 20 - 40 seconds Ramp-down Rate 6C/second max. Time 25C to peak Temperature (T P ) 8 minutes max. Do not exceed 260C Soldering Parameters Packaging Part Numbering System Packaging Option Packaging Specification Quantity Quantity & Packaging Code 24mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 1000 MR 0159 1.25 M R SERIES AMP Code QUANTITY Code PACKAGING Code Refer to Electrical Characteristics table M = 1000 pcs R = Tape and Reel Example: 0.5 amp product is 0159 .500 MR (1.25 amp shown) Dimensions 3.12 [0.123] 4.80 [0.189] 4.80 [0.189] L 1.25 A T F 10.90 [0.429] 10.10 [0.398] 13.00 [0.512] 3.88 [0.153] 4.40 [0.173] 4.30 [0.169] 4.90 [0.193] "A" "B" .004 3.50 [0.138] 3.12 [0.123] 4.80 [0.189] 4.00 [0.157] 3.00 [0.118] 1.70 [0.067] Recommended Pad Layout Time Temperature T P T L T S(max) T S(min) 25 t P t L t S time to peak temperature (t 25C to peak) Ramp-down Ramp-up Preheat Critical Zone T L to T P Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.

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