Circuit Protection – Mouser South Africa

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Heat Pumps

Littelfuse provides a broad portfolio of components for heat pumps, including fuses, TVS diodes, gate drivers, and more. The heat pump market is growing quickly, driven by government initiatives to reduce greenhouse gas emissions and rising energy costs. With inverter-driven motors improving system efficiencies, heat pumps can now be used in a wide range of climates. Learn how Littelfuse technologies make heat pumps safer, more reliable, and more energy efficient. Heat pumps can be used in a wide range of climates due to the inverter-driven motors improving system efficiencies. These components are suitable for various applications such as energy management, security systems, HVAC systems, smoke detectors, and IoT-controlled appliances. Littelfuse offers protect, control, and sense technologies to improve buildings' reliability, safety, and energy efficiency.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: $9.40 3,210In Stock	Mfr. Part No. USP10975 Mouser Part No 803-USP10975	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY Learn More about Littelfuse thermistor probes assemblies	Datasheet	3,210In Stock	$9.40 $8.79 $8.40 $8.23 View $8.16 $7.93	Min.: 1 Mult.: 1
Cartridge Fuses 250V 4A Slo-Blo 0215004.MXEP Littelfuse 1: $3.23 9,351In Stock	Mfr. Part No. 0215004.MXEP Mouser Part No 576-0215004.MXEP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	9,351In Stock	$3.23 $2.67 $2.24 $1.99 View $1.76 $1.64 $1.52 $1.47	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Medium Acting 0234008.MXP Littelfuse 1: $1.15 24,035In Stock	Mfr. Part No. 0234008.MXP Mouser Part No 576-0234008.MXP	Littelfuse	Cartridge Fuses 250V 8A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	24,035In Stock	$1.15 $0.996 $0.934 $0.789 View $0.754 $0.722 $0.697 $0.656	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: $0.67 178,451In Stock	Mfr. Part No. SZSMF33AT1G Mouser Part No 863-SZSMF33AT1G	Littelfuse	ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 Learn More about Littelfuse tvsdiodes	Datasheet	178,451In Stock	Cut Tape $0.67 $0.378 $0.301 $0.243 Reel $0.162 View $0.229 $0.155 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 021806.3MXP Littelfuse 1: $1.28 21,913In Stock	Mfr. Part No. 021806.3MXP Mouser Part No 576-021806.3MXP	Littelfuse	Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	21,913In Stock	$1.28 $1.20 $0.99 $0.721	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional 5.0SMDJ51A Littelfuse 1: $2.17 29,302In Stock	Mfr. Part No. 5.0SMDJ51A Mouser Part No 576-5.0SMDJ51A	Littelfuse	ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	29,302In Stock	Cut Tape $2.17 $1.59 $1.19 $1.07 View Reel $0.734 $0.861 $0.793 $0.734 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A 5KP58CA Littelfuse 1: $4.13 13,307In Stock 6,400On Order	Mfr. Part No. 5KP58CA Mouser Part No 576-5KP58CA	Littelfuse	ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A Learn More about Littelfuse 5kp tvs diodes	Datasheet	13,307In Stock 6,400On Order On Order Ship Dates Mfr. No: 5KP58CA Stock: 13,307 Can Dispatch Immediately On Order: 3,200 Expected 2026/11/11 3,200 Expected 2026/12/09 Factory Lead Time: 22 Weeks	Cut Tape $4.13 $2.71 $2.11 $1.90 $1.51 Reel $1.51	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes ESD 380V BI AK1-380C-Y Littelfuse 1: $29.02 298In Stock	Mfr. Part No. AK1-380C-Y Mouser Part No 576-AK1-380C-Y	Littelfuse	ESD Protection Diodes / TVS Diodes ESD 380V BI Learn More about Littelfuse tvsdiodes	Datasheet	298In Stock	$29.02 $21.50	Min.: 1 Mult.: 1
Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 0218.032MXEP Littelfuse 1: $4.61 1,989In Stock	Mfr. Part No. 0218.032MXEP Mouser Part No 576-0218.032MXEP	Littelfuse	Cartridge Fuses 250V .032A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,989In Stock	$4.61 $4.29 $4.14 $3.26 View $2.70 $2.59 $2.33	Min.: 1 Mult.: 1
Cartridge Fuses 250V .125A Fast Acting 0216.125MXP Littelfuse 1: $2.31 1,291In Stock	Mfr. Part No. 0216.125MXP Mouser Part No 576-0216.125MXP	Littelfuse	Cartridge Fuses 250V .125A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,291In Stock	$2.31 $1.92 $1.78 $1.47 View $1.36 $1.22 $1.13 $1.01	Min.: 1 Mult.: 1
Cartridge Fuses 250V 2.5A Fast Acting 021602.5MXEP Littelfuse 1: $2.99 2,035In Stock	Mfr. Part No. 021602.5MXEP Mouser Part No 576-021602.5MXEP	Littelfuse	Cartridge Fuses 250V 2.5A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	2,035In Stock	$2.99 $2.48 $2.29 $1.36 $1.34	Min.: 1 Mult.: 1
Cartridge Fuses 250V .8A Slo-Blo 3AB 0326.800MXP Littelfuse 1: $2.70 1,728In Stock	Mfr. Part No. 0326.800MXP Mouser Part No 576-0326.800MXP	Littelfuse	Cartridge Fuses 250V .8A Slo-Blo 3AB Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	1,728In Stock	$2.70 $2.24 $2.07 $1.72 View $1.59 $1.43 $1.31 $1.20	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes SMDJ - CA 200V SMDJ200CA Littelfuse 1: $2.94 1,672In Stock	Mfr. Part No. SMDJ200CA Mouser Part No 576-SMDJ200CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMDJ - CA 200V Learn More about Littelfuse military uav systems	Datasheet	1,672In Stock	Cut Tape $2.94 $1.90 $1.50 $1.30 Reel $0.859 View $1.04 $0.916 $0.83 $0.811 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 3kW 8V 5% Uni-Directional SMDJ8.0A Littelfuse 1: $1.60 3,669In Stock	Mfr. Part No. SMDJ8.0A Mouser Part No 576-SMDJ8.0A	Littelfuse	ESD Protection Diodes / TVS Diodes 3kW 8V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	3,669In Stock	Cut Tape $1.60 $0.773 $0.662 $0.593 View Reel $0.435 $0.515 $0.476 $0.435 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 33V 600W BI-DIR SZP6SMB AEC-Q101 SZP6SMB33CAT3G Littelfuse 1: $0.39 35,334In Stock	Mfr. Part No. SZP6SMB33CAT3G Mouser Part No 863-SZP6SMB33CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes 33V 600W BI-DIR SZP6SMB AEC-Q101 Learn More about Littelfuse automotive tvs diodes	Datasheet	35,334In Stock	Cut Tape $0.39 $0.351 $0.304 $0.247 Reel $0.181 View $0.242 $0.176 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 36V 600W BI-DIR SZP6SMB AEC-Q101 SZP6SMB36CAT3G Littelfuse 1: $0.67 13,837In Stock	Mfr. Part No. SZP6SMB36CAT3G Mouser Part No 863-SZP6SMB36CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes 36V 600W BI-DIR SZP6SMB AEC-Q101 Learn More about Littelfuse automotive tvs diodes	Datasheet	13,837In Stock	Cut Tape $0.67 $0.363 $0.331 $0.266 $0.257 Reel $0.176 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Cartridge Fuses 250V .25A Slo-Blo 0213.250MXEP Littelfuse 1: $2.37 4,201In Stock	Mfr. Part No. 0213.250MXEP Mouser Part No 576-0213.250MXEP	Littelfuse	Cartridge Fuses 250V .25A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	4,201In Stock	$2.37 $2.15 $2.05 $1.65 View $1.40 $1.37 $1.16 $1.02	Min.: 1 Mult.: 1
Cartridge Fuses 250V 5A Slo-Blo 0215005.MXEP Littelfuse 1: $3.79 1,521In Stock	Mfr. Part No. 0215005.MXEP Mouser Part No 576-0215005.MXEP	Littelfuse	Cartridge Fuses 250V 5A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,521In Stock	$3.79 $3.17 $2.50 $2.21 View $1.99 $1.83 $1.69 $1.60	Min.: 1 Mult.: 1
Cartridge Fuses 250V .1A Fast Acting 0235.100HXP Littelfuse 1: $2.67 1,290In Stock	Mfr. Part No. 0235.100HXP Mouser Part No 576-0235.100HXP	Littelfuse	Cartridge Fuses 250V .1A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,290In Stock	$2.67 $2.23 $2.06 $1.71 View $1.26 $1.20	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6.25A Slo-Blo 03266.25MXP Littelfuse 1: $2.70 2,652In Stock	Mfr. Part No. 03266.25MXP Mouser Part No 576-03266.25MXP	Littelfuse	Cartridge Fuses 250V 6.25A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	2,652In Stock	$2.70 $2.24 $2.07 $1.72 View $1.59 $1.43 $1.33	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional 1.5SMC160CA Littelfuse 1: $1.29 4,979In Stock	Mfr. Part No. 1.5SMC160CA Mouser Part No 576-1.5SMC160CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 160V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,979In Stock	Cut Tape $1.29 $0.808 $0.60 $0.533 Reel $0.295 View $0.413 $0.352 $0.281 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 15.3Vso 17.1Vbr P4KE18A Littelfuse 1: $0.69 23,911In Stock	Mfr. Part No. P4KE18A Mouser Part No 576-P4KE18A	Littelfuse	ESD Protection Diodes / TVS Diodes 15.3Vso 17.1Vbr Learn More about Littelfuse tvsdiodes	Datasheet	23,911In Stock	Cut Tape $0.69 $0.309 $0.271 $0.206 $0.183 Reel $0.11	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 300Vso 332Vbr P4KE350CA Littelfuse 1: $1.01 9,053In Stock	Mfr. Part No. P4KE350CA Mouser Part No 576-P4KE350CA	Littelfuse	ESD Protection Diodes / TVS Diodes 300Vso 332Vbr Learn More about Littelfuse tvsdiodes	Datasheet	9,053In Stock	Cut Tape $1.01 $0.462 $0.408 $0.314 Reel $0.191 View $0.313 $0.291 $0.19	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 376V 400W 5% Bi-directional P4SMA440CA Littelfuse 1: $0.95 9,333In Stock	Mfr. Part No. P4SMA440CA Mouser Part No 576-P4SMA440CA	Littelfuse	ESD Protection Diodes / TVS Diodes 376V 400W 5% Bi-directional Learn More about Littelfuse tvsdiodes	Datasheet	9,333In Stock	Cut Tape $0.95 $0.458 $0.411 $0.316 Reel $0.197 View $0.294 $0.191 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 11V 600W BI-DIR SZP6SMB AEC-Q101 SZP6SMB11CAT3G Littelfuse 1: $0.87 8,753In Stock	Mfr. Part No. SZP6SMB11CAT3G Mouser Part No 863-SZP6SMB11CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes 11V 600W BI-DIR SZP6SMB AEC-Q101 Learn More about Littelfuse automotive tvs diodes	Datasheet	8,753In Stock	Cut Tape $0.87 $0.395 $0.348 $0.266 $0.257 Reel $0.176 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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Heat Pumps

Types of Circuit Protection