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ITV Battery Protectors

Littelfuse ITV Battery Protectors are three-terminal, surface-mountable Li-ion battery protectors designed to protect against overcurrent and overcharging. These ITVs utilize a fuse element for stable operation under normal electrical current and to cut off the current when overcurrent occurs. A heater is directly embedded under the chemical fuse element and will generate heat to blow the fuse when overvoltage is detected by an IC or field-effect transistor (FET). These chip-style devices have an operating supply current of 12A, 15A, 30A, 40A, and 60A and an operating supply voltage range from 4V to 62V. Applications for Littelfuse ITV Battery Protectors include E-bikes, power tools, automotive, energy storage systems, and drones.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.
Battery Management ITV 5.4*3.2MM 50V 30A ITV5432L5030WR Littelfuse 1: S/17.91 7,560In Stock	Mfr. Part # ITV5432L5030WR Mouser Part # 650-ITV5432L5030WR	Littelfuse	Battery Management ITV 5.4*3.2MM 50V 30A Learn More about Littelfuse itv polyswitch	Datasheet	7,560In Stock	Cut Tape S/17.91 S/13.51 S/12.42 S/11.21 View Reel S/9.15 S/10.63 S/10.55 S/9.93 S/9.15 Quote	Min.: 1 Mult.: 1 : 3,000
Battery Management ITV 9.5*5.0mm 18V 30A ITV9550L1830MR Littelfuse 1: S/32.15 334In Stock	Mfr. Part # ITV9550L1830MR Mouser Part # 576-ITV9550L1830MR	Littelfuse	Battery Management ITV 9.5*5.0mm 18V 30A Learn More about Littelfuse itv battery protectors	Datasheet	334In Stock	Cut Tape S/32.15 S/29.70 S/24.60 S/22.69 View Reel S/18.76 S/20.40 S/18.76 S/18.76 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0mm 50V 60A ITV9550L5060MR Littelfuse 1: S/57.65 1,177In Stock	Mfr. Part # ITV9550L5060MR Mouser Part # 576-ITV9550L5060MR	Littelfuse	Battery Management ITV 9.5*5.0mm 50V 60A Learn More about Littelfuse itv9550 fuses	Datasheet	1,177In Stock	Cut Tape S/57.65 S/45.23 S/42.00 S/38.57 View Reel S/31.65 S/38.15 S/35.97 S/31.65 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 5.4*3.2MM 40V 30A ITV5432L4030WR Littelfuse 1: S/17.91 2,567In Stock	Mfr. Part # ITV5432L4030WR Mouser Part # 650-ITV5432L4030WR	Littelfuse	Battery Management ITV 5.4*3.2MM 40V 30A Learn More about Littelfuse itv polyswitch	Datasheet	2,567In Stock	Cut Tape S/17.91 S/13.51 S/12.42 S/11.21 View Reel S/9.85 S/10.63 S/10.55 S/9.93 S/9.85 Quote	Min.: 1 Mult.: 1 : 3,000
Battery Management ITV 9.5*5.0MM 14V 45A ITV9550L1445MR Littelfuse 1: S/30.24 625In Stock	Mfr. Part # ITV9550L1445MR Mouser Part # 650-ITV9550L1445MR	Littelfuse	Battery Management ITV 9.5*5.0MM 14V 45A Learn More about Littelfuse itv polyswitch	Datasheet	625In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 View Reel S/15.57 S/18.26 S/18.22 S/15.57	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0MM 50V 30A ITV9550L5030MR Littelfuse 1: S/30.24 1,528In Stock	Mfr. Part # ITV9550L5030MR Mouser Part # 650-ITV9550L5030MR	Littelfuse	Battery Management ITV 9.5*5.0MM 50V 30A Learn More about Littelfuse itv polyswitch	Datasheet	1,528In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 Reel S/16.62 View S/18.26 S/18.22 S/15.57 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0MM 14V 30A ITV9550L1430MR Littelfuse 1: S/30.24 588In Stock	Mfr. Part # ITV9550L1430MR Mouser Part # 650-ITV9550L1430MR	Littelfuse	Battery Management ITV 9.5*5.0MM 14V 30A Learn More about Littelfuse itv polyswitch	Datasheet	588In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 Reel S/18.72 View S/18.76 S/18.68 Quote	Min.: 1 Mult.: 1 : 1,000
Surface Mount Fuses ITV 4.0*3.0MM 14V 15A ITV4030L1415NR Littelfuse 1: S/19.93 5,000In Stock	Mfr. Part # ITV4030L1415NR Mouser Part # 650-ITV4030L1415NR	Littelfuse	Surface Mount Fuses ITV 4.0*3.0MM 14V 15A Learn More about Littelfuse itv polyswitch	Datasheet	5,000In Stock	Cut Tape S/19.93 S/17.56 S/16.62 S/13.39 View Reel S/9.19 S/11.68 S/10.86 S/9.69 S/9.30 S/9.19 S/9.19	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses ITV 4.0*3.0MM 12V 12A ITV4030L1212NR Littelfuse 1: S/18.26 4,355In Stock	Mfr. Part # ITV4030L1212NR Mouser Part # 650-ITV4030L1212NR	Littelfuse	Surface Mount Fuses ITV 4.0*3.0MM 12V 12A Learn More about Littelfuse itv polyswitch	Datasheet	4,355In Stock	Cut Tape S/18.26 S/16.97 S/15.92 S/12.88 View Reel S/8.06 S/10.67 S/10.28 S/8.87 S/8.37 S/8.06 S/8.06 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses ITV 4.0*3.0MM 14V 12A ITV4030L1412NR Littelfuse 1: S/16.15 4,990In Stock	Mfr. Part # ITV4030L1412NR Mouser Part # 650-ITV4030L1412NR	Littelfuse	Surface Mount Fuses ITV 4.0*3.0MM 14V 12A Learn More about Littelfuse itv polyswitch	Datasheet	4,990In Stock	Cut Tape S/16.15 S/14.56 S/13.90 S/11.56 View Reel S/8.37 S/10.24 S/9.65 S/8.72 S/8.60 S/8.37 S/8.37	Min.: 1 Mult.: 1 : 5,000
Battery Management ITV 9.5*5.0MM 12V 45A ITV9550L1245MR Littelfuse 1: S/30.24 795In Stock	Mfr. Part # ITV9550L1245MR Mouser Part # 650-ITV9550L1245MR	Littelfuse	Battery Management ITV 9.5*5.0MM 12V 45A Learn More about Littelfuse itv polyswitch	Datasheet	795In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 Reel S/17.63 View S/18.26 S/18.22 S/16.78	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0MM 30V 30A ITV9550L3030MR Littelfuse 1: S/30.24 784In Stock	Mfr. Part # ITV9550L3030MR Mouser Part # 650-ITV9550L3030MR	Littelfuse	Battery Management ITV 9.5*5.0MM 30V 30A Learn More about Littelfuse itv polyswitch	Datasheet	784In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 View Reel S/15.57 S/18.26 S/18.22 S/15.57	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 5.4*3.2MM 12V 30A ITV5432L1230WR Littelfuse 1: S/17.91 2,323In Stock	Mfr. Part # ITV5432L1230WR Mouser Part # 650-ITV5432L1230WR	Littelfuse	Battery Management ITV 5.4*3.2MM 12V 30A Learn More about Littelfuse itv polyswitch	Datasheet	2,323In Stock	Cut Tape S/17.91 S/13.51 S/12.42 S/11.21 View Reel S/8.60 S/10.63 S/10.55 S/9.93 S/8.60	Min.: 1 Mult.: 1 : 3,000
Battery Management ITV 5.4*3.2MM 14V 30A ITV5432L1430WR Littelfuse 1: S/18.61 3,085In Stock	Mfr. Part # ITV5432L1430WR Mouser Part # 650-ITV5432L1430WR	Littelfuse	Battery Management ITV 5.4*3.2MM 14V 30A Learn More about Littelfuse itv polyswitch	Datasheet	3,085In Stock	Cut Tape S/18.61 S/15.49 S/13.51 S/12.34 View Reel S/8.60 S/11.41 S/10.90 S/10.47 S/8.60	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses ITV 4.0*3.0MM 20V 15A ITV4030L2015NR Littelfuse 1: S/19.38 2,012In Stock 5,000Expected 2/24/2027	Mfr. Part # ITV4030L2015NR Mouser Part # 650-ITV4030L2015NR	Littelfuse	Surface Mount Fuses ITV 4.0*3.0MM 20V 15A Learn More about Littelfuse itv polyswitch	Datasheet	2,012In Stock 5,000Expected 2/24/2027	Cut Tape S/19.38 S/17.09 S/15.92 S/13.04 View Reel S/9.19 S/11.37 S/10.55 S/9.42 S/9.19 S/9.19 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Battery Management ITV 5.4*3.2MM 30V 30A ITV5432L3030WR Littelfuse 1: S/18.10 1,030In Stock	Mfr. Part # ITV5432L3030WR Mouser Part # 650-ITV5432L3030WR	Littelfuse	Battery Management ITV 5.4*3.2MM 30V 30A Learn More about Littelfuse itv polyswitch	Datasheet	1,030In Stock	Cut Tape S/18.10 S/15.03 S/13.16 S/11.99 View Reel S/9.85 S/11.09 S/10.63 S/10.20 S/9.85 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Battery Management ITV 9.5*5.0MM 40V 45A ITV9550L4045MR Littelfuse 1: S/30.24 789In Stock	Mfr. Part # ITV9550L4045MR Mouser Part # 650-ITV9550L4045MR	Littelfuse	Battery Management ITV 9.5*5.0MM 40V 45A Learn More about Littelfuse itv polyswitch	Datasheet	789In Stock	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 View Reel S/15.57 S/18.26 S/18.22 S/15.57	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0mm 12V 60A ITV9550L1260MR Littelfuse 1: S/58.35 65In Stock	Mfr. Part # ITV9550L1260MR Mouser Part # 576-ITV9550L1260MR	Littelfuse	Battery Management ITV 9.5*5.0mm 12V 60A Learn More about Littelfuse itv9550 fuses	Datasheet	65In Stock	Cut Tape S/58.35 S/49.36 S/43.48 S/39.98 View Reel S/35.69 S/38.22 S/36.98 S/35.69 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0MM 50V 45A ITV9550L5045MR Littelfuse 1: S/31.53 19In Stock 5,000Expected 1/1/2027	Mfr. Part # ITV9550L5045MR Mouser Part # 650-ITV9550L5045MR	Littelfuse	Battery Management ITV 9.5*5.0MM 50V 45A Learn More about Littelfuse itv polyswitch	Datasheet	19In Stock 5,000Expected 1/1/2027	Cut Tape S/31.53 S/28.77 S/23.78 S/21.91 View Reel S/17.87 S/19.97 S/19.11 S/17.87 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0MM 30V 45A ITV9550L3045MR Littelfuse 1: S/30.83 9In Stock 1,000Expected 3/1/2027	Mfr. Part # ITV9550L3045MR Mouser Part # 650-ITV9550L3045MR	Littelfuse	Battery Management ITV 9.5*5.0MM 30V 45A Learn More about Littelfuse itv polyswitch	Datasheet	9In Stock 1,000Expected 3/1/2027	Cut Tape S/30.83 S/24.80 S/22.27 S/20.28 View Reel S/17.87 S/18.80 S/18.65 S/17.87	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0mm 14V 60A ITV9550L1460MR Littelfuse 1: S/57.65 990Expected 1/21/2027	Mfr. Part # ITV9550L1460MR Mouser Part # 576-ITV9550L1460MR	Littelfuse	Battery Management ITV 9.5*5.0mm 14V 60A Learn More about Littelfuse itv9550 fuses	Datasheet	990Expected 1/21/2027	Cut Tape S/57.65 S/45.11 S/42.00 S/38.57 View Reel S/37.48 S/38.22 S/37.52 S/37.48 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Surface Mount Fuses ITV 4.0*3.0MM 8V 12A ITV4030L0812NR Littelfuse 1: S/18.26 5,000Expected 10/8/2026	Mfr. Part # ITV4030L0812NR Mouser Part # 650-ITV4030L0812NR	Littelfuse	Surface Mount Fuses ITV 4.0*3.0MM 8V 12A Learn More about Littelfuse itv polyswitch	Datasheet	5,000Expected 10/8/2026	Cut Tape S/18.26 S/16.19 S/15.38 S/12.61 View Reel S/9.19 S/11.17 S/10.47 S/9.46 S/9.19 S/9.19 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Battery Management ITV 9.5*5.0MM 12V 30A ITV9550L1230MR Littelfuse 1: S/30.24 1,000Expected 3/1/2027	Mfr. Part # ITV9550L1230MR Mouser Part # 650-ITV9550L1230MR	Littelfuse	Battery Management ITV 9.5*5.0MM 12V 30A Learn More about Littelfuse itv polyswitch	Datasheet	1,000Expected 3/1/2027	Cut Tape S/30.24 S/23.32 S/21.60 S/19.70 Reel S/18.53 View S/18.57 S/18.41 Quote	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0mm 12V 45A ITV9550L1245FMR Littelfuse 1: S/35.89 1,000Expected 12/31/2026 New Product	Mfr. Part # ITV9550L1245FMR Mouser Part # 650-ITV9550L1245FMR New Product	Littelfuse	Battery Management ITV 9.5*5.0mm 12V 45A Learn More about Littelfuse itv battery protectors	Datasheet	1,000Expected 12/31/2026	Cut Tape S/35.89 S/27.79 S/25.77 S/23.55 Reel S/21.25 View S/22.50 S/21.84 S/20.16	Min.: 1 Mult.: 1 : 1,000
Battery Management ITV 9.5*5.0mm 14V 45A ITV9550L1445FMR Littelfuse 1: S/35.89 1,000Expected 12/31/2026 New Product	Mfr. Part # ITV9550L1445FMR Mouser Part # 650-ITV9550L1445FMR New Product	Littelfuse	Battery Management ITV 9.5*5.0mm 14V 45A Learn More about Littelfuse itv battery protectors	Datasheet	1,000Expected 12/31/2026	Cut Tape S/35.89 S/27.79 S/25.77 S/23.55 Reel S/21.25 View S/22.50 S/21.84 S/20.16	Min.: 1 Mult.: 1 : 1,000

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