36 surface mount fuses subminiature surface mount pico smf very fast-acting type fuse 459 series the pico smf very fast-acting fuse provides high per- formance in a rectangular package suitable for reflow and wave soldering methods. electrical characteristics: % of ampere opening rating time 100% 4 hours, min imum 200% 1 second, max imum 300% 0.1 second, max imum agency approvals: recognized under the components program of underwriters laboratories and certified by csa. approved by meti 1 through 5 amperes. agency file numbers: ul e10480, csa lr 29862. interrupting ratings: 50 amperes at 125 vac. 300 amperes at 125 vdc. environmental specifications: operating temperature: 55? to 125?. shock: mil-std-202, method 213, test condition i (100 g s peak for 6 milliseconds). vibration: mil-std-202, method 201 (10 55 hz, .06 in. total excursion). salt spray: mil-std-202, method 101, test condition b (48 hrs.). insulation resistance (after opening): mil-std-202, method 302, (10,000 ohms minimum at 100 volts). resistance to soldering heat: mil-std-202, method 210, test condition f (10 sec. at 260?). thermal shock: mil-std-202, method 107, test condition b ( 65 to 125?). moisture resistance: mil-std-202, method 106, high humidity (90-98 rh), heat (65?. physical specifications: materials: body: molded thermoplastic terminations: tin-lead plated copper soldering parameters: wave solder ?260?, 10 seconds maximum reflow solder ?260?, 30 seconds maximum solderability: mil-std-202, method 208. packaging specifications: 12mm tape and reel per eia-rs481 (iec 286, part 3); 500 per reel, add packaging suffix, ur. patented ordering information: nominal nominal catalog ampere voltage resistance melting i 2 t number rating rating cold ohms a 2 sec. r459 .062 1/16 125 7.0 0.000075 r459 .125 1/8 125 1.70 0.00163 r459 .250 1/4 125 0.665 0.0106 r459 .375 3/8 125 0.395 0.0254 r459 .500 1/2 125 0.280 0.0546 r459 .750 3/4 125 0.175 0.155 r459 001 1 125 0.125 0.281 r459 01.5 1 1 / 2 125 0.0800 0.650 r459 002 2 125 0.0468 0.421 r459 02.5 2 1 / 2 125 0.0350 0.721 r459 003 3 125 0.0290 1.23 r459 03.5 3 1 / 2 125 0.0240 1.65 r459 004 4 125 0.0200 2.35 r459 005 5 125 0.0155 3.90 100 10 1 0.1 0.01 0.001 1/16a 0.05 0.1 1 10 100 1/8a 1/4a 3/8a 1/2a 3/4a 1a 1 1/2a 2a 2 1/2a 3a 3 1/2a 4a 5a time in seconds current in amperes average time current curves .170" 5 a 1 2 5 v l f 4 5 9 b 3 .120" .117" .285" ref. .325" .065" .195" .051" ref. .080" recommended pad layout
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