209 Lead-Free 350V Slo-Blo® (Time-Lag) Fuses

Littelfuse 209 Series 350V (2AG) Slo-Blo® (Time-Lag) Fuses are available in cartridge form or with axial leads. The series provides the same performance characteristics as its 3AG counterpart while occupying one-third of the space. The glass-bodied fuses offer nickel-plated brass caps, tin-plated copper leads, and an operating temperature range of -55°C to +125°C. The components are in accordance with Underwriter's Laboratories Standard UL 248-14, lead-free, and RoHS compliant. Littelfuse 209 time-lag fuses are ideal for electrical lighting ballasts and have sleeved fuses available.

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Qty. RoHS ECAD Model Series
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Fuse Size/Group
Voltage Rating AC
Interrupt Rating
Mounting Style
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
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Littelfuse Cartridge Fuses 350V 4A SB PT 2AG PB-FREE
Datasheet
990In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 6A SB PT 2AG PB-FREE
Datasheet
704In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V .500A SB 2AG PB-FREE
Datasheet
994In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 500 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 688 mOhms
Littelfuse Cartridge Fuses 350V .750A SB 2AG PB-FREE
Datasheet
585In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 750 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 340 mOhms
Littelfuse Cartridge Fuses 350V 1.25A SB PT 2AG PB-FREE
Datasheet
464In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V .375A SB 2AG PB-FREE
Datasheet
448In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 375 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 1.17 Ohms
Littelfuse Cartridge Fuses 350V .250A SB 2AG PB-FREE
Datasheet
1 046In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 250 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 2.41 Ohms
Littelfuse Cartridge Fuses 350V .500A SB PT 2AG PB-FREE
Datasheet
809In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 500 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 688 mOhms
Littelfuse Cartridge Fuses 350V 1A SB 2AG PB-FREE
Datasheet
740In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 2A SB PT 2AG PB-FREE
Datasheet
235In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 3A SB PT 2AG PB-FREE
Datasheet
930In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 4A SB PT 2AG PB-FREE
Datasheet
224In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 5A SB PT 2AG PB-FREE
Datasheet
491In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 5A SB PT 2AG PB-FREE
Datasheet
1 002In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 7A SB PT 2AG PB-FREE
Datasheet
860In Stock
1 000Expected 3/31/2026
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 7A SB PT 2AG PB-FREE
Datasheet
743In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 1.5A SB PT 2AG PB-FREE
Datasheet
262In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V SB PT 2AG 3.5A
Datasheet
1 000In Stock
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 1.25A SB PT 2AG PB-FREE
Datasheet
992Expected 4/14/2026
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V 1A SB PT 2AG PB-FREE
Datasheet
24 000Stock Available
More Info Available
Min.: 1
Mult.: 1

209 Glass Fuses 1 A Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 210 mOhms
Littelfuse Cartridge Fuses 350V .250A SB PT 2AG PB-FREE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1 500
Mult.: 1 500
Reel: 1 500

209 Glass Fuses 250 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Reel 2.41 Ohms
Littelfuse Cartridge Fuses 350V .250A SB PT 2AG PB-FREE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

209 Glass Fuses 250 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 2.41 Ohms
Littelfuse Cartridge Fuses 350V .375A SB PT 2AG PB-FREE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1 500
Mult.: 1 500
Reel: 1 500

209 Glass Fuses 375 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Reel 1.17 Ohms
Littelfuse Cartridge Fuses 350V .375A SB PT 2AG PB-FREE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

209 Glass Fuses 375 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Board Mount Axial - 60 C + 125 C Bulk 1.17 Ohms
Littelfuse Cartridge Fuses 350V .500A SB PT 2AG PB-FREE
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1 500
Mult.: 1 500
Reel: 1 500

209 Glass Fuses 500 mA Time Delay / Slow Blow 2AG (5 mm x 15 mm) 350 VAC 100 A at 350 VAC Holder / Clip Clip - 60 C + 125 C Reel 688 mOhms