NANO Fuses

Littelfuse NANO® Fuses are fast-acting, high-performance fuses available in a wide range of available current ratings. The portfolio includes 448 NANO2® SMF Fuses, which are fast-acting fuses available in current ratings from 62mA to 15A. The 443 NANO2 series features square surface-mount, time-lag devices with a 250VAC voltage rating. Littelfuse 449 NANO2 Slo-Blo® Fuses offer enhanced inrush withstand characteristics over NANO2 Fast-Acting Fuses. The 456 series is designed to support higher current requirements and is fully compatible with lead-free solder alloys. Littelfuse 456 fuses are ideal for storage system powers, cooling fan systems for PC servers, and base station power supplies. Littelfuse NANO Fuses include additional series as well.

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數量 RoHS ECAD模型 系列
產品
保險絲類型
额定电流
交流電額定電壓
直流電額定電壓
中斷等級
保險絲大小/成組
最低工作溫度
最高工作溫度
封裝
電阻
Littelfuse 表面黏著保險絲 350VAC 3.15A .0196ohms 885 NANO2
規格書
2,249庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

885 Surface Mount Fuses Fast Blow 3.15 A 350 VAC 500 VDC 100 A at 350 VAC, 100 A at 500 VDC 10.86 mm x 4.78 mm - 40 C + 105 C Reel, Cut Tape, MouseReel 19.6 mOhms
Littelfuse 表面黏著保險絲 125VAC 0.08A 4.47ohms 448 NANO2
規格書
產品評論
528庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 80 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 4.47 Ohms
Littelfuse 表面黏著保險絲 125VAC 0.25A .5765ohms 453 NANO2
規格書
1,330庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

453 Surface Mount Ceramic Fuses Fast Blow 250 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 576.5 mOhms
Littelfuse 表面黏著保險絲 250VAC 1A .0762ohms 464 NANO2
規格書
1,899庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

464 Surface Mount Ceramic Fuses Fast Blow 1 A 250 VAC 250 VDC 100 A at 250 VAC 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 76.2 mOhms
Littelfuse 表面黏著保險絲 250VAC 1.25A .058ohms 464 NANO2
規格書
838庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

464 Surface Mount Ceramic Fuses Fast Blow 1.25 A 250 VAC 250 VDC 100 A at 250 VAC 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 58 mOhms
Littelfuse 表面黏著保險絲 250VAC 1.25A .083ohms 465 NANO2
規格書
710庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

465 Surface Mount Fuses Time Delay / Slow Blow 1.25 A 250 VAC 250 VDC 100 A at 250 VAC NANO - 55 C + 125 C Reel, Cut Tape, MouseReel 83 mOhms
Littelfuse 表面黏著保險絲 250VAC 0.5A .6ohms 443 NANO2
規格書
1,420庫存量
3,000預期2026/3/27
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

443 Surface Mount Fuses Time Delay / Slow Blow 500 mA 250 VAC 125 VDC 50 A at 250 VAC, 100 A at 125 VDC 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 600 mOhms
Littelfuse 表面黏著保險絲 250VAC 0.75A .275ohms 443 NANO2
規格書
1,105庫存量
1,500預期2026/4/7
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

443 Surface Mount Fuses Time Delay / Slow Blow 750 mA 250 VAC 125 VDC 50 A at 250 VAC, 100 A at 125 VDC 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 275 mOhms
Littelfuse 表面黏著保險絲 250VAC 4A .016ohms 443 NANO2
規格書
1,325庫存量
1,500預期2026/7/13
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

443 Surface Mount Fuses Time Delay / Slow Blow 4 A 250 VAC 125 VDC 50 A at 250 VAC, 100 A at 125 VDC 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 16 mOhms
Littelfuse 表面黏著保險絲 250VAC 2.5A .035ohms 443 NANO2
規格書
1,729庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

443 Surface Mount Fuses Time Delay / Slow Blow 2.5 A 250 VAC 125 VDC 50 A at 250 VAC, 100 A at 125 VDC 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 35 mOhms
Littelfuse 表面黏著保險絲 250VAC 3.5A .019ohms 443 NANO2
規格書
1,148庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,500

443 Surface Mount Fuses Time Delay / Slow Blow 3.5 A 250 VAC 125 VDC 50 A at 250 VAC, 100 A at 125 VDC 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 19 mOhms
Littelfuse 表面黏著保險絲 125VAC 0.25A .95ohms 448 NANO2
規格書
產品評論
1,690庫存量
2,000預期2026/4/17
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 250 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 950 mOhms
Littelfuse 表面黏著保險絲 125VAC 0.63A .3125ohms 448 NANO2
規格書
產品評論
520庫存量
1,000預期2026/6/29
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 630 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 312.5 mOhms
Littelfuse 表面黏著保險絲 125VAC 0.75A .229ohms 448 NANO2
規格書
產品評論
1,672庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 229 mOhms
Littelfuse 表面黏著保險絲 125VAC 1A .0863ohms 448 NANO2
規格書
產品評論
1,507庫存量
2,000預期2026/6/15
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 1 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 86.3 mOhms
Littelfuse 表面黏著保險絲 125VAC 2A .03529ohms 448 NANO2
規格書
產品評論
1,538庫存量
1,000預期2026/6/15
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 2 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 35.29 mOhms
Littelfuse 表面黏著保險絲 125VAC 4A .01577ohms 448 NANO2
規格書
產品評論
1,693庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 15.77 mOhms
Littelfuse 表面黏著保險絲 125VAC 5A .01531ohms 448 NANO2
規格書
產品評論
2,597庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 15.31 mOhms
Littelfuse 表面黏著保險絲 125VAC 8A .0078ohms 448 NANO2
規格書
產品評論
1,038庫存量
1,000預期2026/4/17
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 8 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 7.8 mOhms
Littelfuse 表面黏著保險絲 125VAC 1.5A .06514ohms 448 NANO2
規格書
產品評論
1,509庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 15 A 65 VAC 65 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 65.14 mOhms
Littelfuse 表面黏著保險絲 125VAC 1.6A .06261ohms 448 NANO2
規格書
產品評論
205庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 1.6 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 62.61 mOhms
Littelfuse 表面黏著保險絲 125VAC 10A .007ohms 448 NANO2
規格書
產品評論
441庫存量
2,000預期2026/4/24
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 10 A 125 VAC 125 VDC 35 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 7 mOhms
Littelfuse 表面黏著保險絲 65VAC 12A .00533ohms 448 NANO2
規格書
產品評論
685庫存量
2,000預期2026/5/5
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 12 A 65 VAC 85 VDC 50 A at 65 VAC, 200 A at 85 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 5.33 mOhms
Littelfuse 表面黏著保險絲 125VAC 3.5A .021ohms 448 NANO2
規格書
產品評論
946庫存量
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 3.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 21 mOhms
Littelfuse 表面黏著保險絲 125VAC 6.3A .01044ohms 448 NANO2
規格書
產品評論
88庫存量
2,000預期2026/5/14
可選用MouseReel
最少： 1
倍數： 1
捲: 1,000

448 Surface Mount Fuses Fast Blow 6.3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.44 mOhms