Circuit Protection – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 3,279

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 021806.3MXP Littelfuse 1: £0.96 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	£0.96 £0.899 £0.743 £0.541	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional 5.0SMDJ51A Littelfuse 1: £1.63 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 £1.63 £1.20 £0.89 £0.803 View Reel £0.551 £0.646 £0.595 £0.551 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A 5KP58CA Littelfuse 1: £3.10 16,507In Stock 3,200Expected 09/12/2026	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	16,507In Stock 3,200Expected 09/12/2026	Cut Tape £3.10 £2.03 £1.58 £1.42 £1.13 Reel £1.13	Min.: 1 Mult.: 1 : 800
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: £7.05 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	£7.05 £6.60 £6.30 £6.18 View £6.13 £5.95	Min.: 1 Mult.: 1
Cartridge Fuses 250V 4A Slo-Blo 0215004.MXEP Littelfuse 1: £2.43 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	£2.43 £2.01 £1.68 £1.49 View £1.32 £1.23 £1.14 £1.10	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Medium Acting 0234008.MXP Littelfuse 1: £0.863 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	£0.863 £0.747 £0.701 £0.592 View £0.566 £0.542 £0.523 £0.492	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: £0.503 178,451In 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 £0.503 £0.284 £0.226 £0.182 Reel £0.121 View £0.172 £0.116 £0.107 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes ESD 380V BI AK1-380C-Y Littelfuse 1: £21.78 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	£21.78 £16.14	Min.: 1 Mult.: 1
Cartridge Fuses 250V .25A Slo-Blo 0215.250MXEP Littelfuse 1: £2.71 1,000In Stock	Mfr. Part No. 0215.250MXEP Mouser Part No 576-0215.250MXEP	Littelfuse	Cartridge Fuses 250V .25A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,000In Stock	£2.71 £2.47 £2.38 £1.87 View £1.59 £1.49 £1.37 £1.36 £1.35	Min.: 1 Mult.: 1
Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 0218.032MXEP Littelfuse 1: £3.46 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	£3.46 £3.22 £3.11 £2.44 View £2.03 £1.95 £1.75	Min.: 1 Mult.: 1
Cartridge Fuses 250V 10A Slo-Blo 0215010.MXEP Littelfuse 1: £2.43 3,700In Stock	Mfr. Part No. 0215010.MXEP Mouser Part No 576-0215010.MXEP	Littelfuse	Cartridge Fuses 250V 10A Slo-Blo Learn More about Littelfuse 215sp	Datasheet	3,700In Stock	£2.43 £2.01 £1.66 £1.49 View £1.41 £1.27 £1.18 £1.10	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Fast Acting 0216008.MXEP Littelfuse 1: £1.59 1,052In Stock	Mfr. Part No. 0216008.MXEP Mouser Part No 576-0216008.MXEP	Littelfuse	Cartridge Fuses 250V 8A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,052In Stock	£1.59 £1.48 £1.42 £1.23 View £1.12 £1.07 £1.04 £1.03 £1.00	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.6A Fast Acting 021601.6MXEP Littelfuse 1: £2.24 1,451In Stock	Mfr. Part No. 021601.6MXEP Mouser Part No 576-021601.6MXEP	Littelfuse	Cartridge Fuses 250V 1.6A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,451In Stock	£2.24 £1.86 £1.72 £1.42 View £1.32 £1.19 £1.09 £1.00	Min.: 1 Mult.: 1
Cartridge Fuses 250V 10A Fast Acting 0216010.MXP Littelfuse 1: £1.58 6,720In Stock	Mfr. Part No. 0216010.MXP Mouser Part No 576-0216010.MXP	Littelfuse	Cartridge Fuses 250V 10A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	6,720In Stock	£1.58 £1.32 £0.943 £0.863 View £0.78 £0.727 £0.688	Min.: 1 Mult.: 1
Cartridge Fuses 250V .04A Time Lag (Slo-Blo) 0218.040MXP Littelfuse 1: £2.23 870In Stock	Mfr. Part No. 0218.040MXP Mouser Part No 576-0218.040MXP	Littelfuse	Cartridge Fuses 250V .04A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	870In Stock	£2.23 £2.07 £1.71 £1.57 View £1.42 £1.31 £1.24	Min.: 1 Mult.: 1
Cartridge Fuses 250V .08A Time Lag (Slo-Blo) 0218.080MXP Littelfuse 1: £2.52 1,526In Stock	Mfr. Part No. 0218.080MXP Mouser Part No 576-0218.080MXP	Littelfuse	Cartridge Fuses 250V .08A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,526In Stock	£2.52 £2.16 £1.57 £1.42 View £1.32 £1.24	Min.: 1 Mult.: 1
Cartridge Fuses 125V 1.25A Medium Acting 02331.25MXP Littelfuse 1: £1.07 2,425In Stock	Mfr. Part No. 02331.25MXP Mouser Part No 576-02331.25MXP	Littelfuse	Cartridge Fuses 125V 1.25A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	2,425In Stock	£1.07 £0.681 £0.637 £0.506 View £0.471 £0.45	Min.: 1 Mult.: 1
Cartridge Fuses 250V .3A Fast Acting 0235.300MXP Littelfuse 1: £1.06 11,766In Stock	Mfr. Part No. 0235.300MXP Mouser Part No 576-0235.300MXP	Littelfuse	Cartridge Fuses 250V .3A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	11,766In Stock	£1.06 £0.882 £0.811 £0.673 View £0.621 £0.559 £0.515 £0.443	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 376V Uni-Directional 1.5KE440A Littelfuse 1: £1.13 7,347In Stock	Mfr. Part No. 1.5KE440A Mouser Part No 576-1.5KE440A	Littelfuse	ESD Protection Diodes / TVS Diodes 1500W 376V Uni-Directional Learn More about Littelfuse 1.5ke series diodes	Datasheet	7,347In Stock	Cut Tape £1.13 £0.523 £0.363 £0.302 Reel £0.265 View £0.254 £0.244 £0.238	Min.: 1 Mult.: 1 : 1,200
ESD Protection Diodes / TVS Diodes 1500W 43.6V Bi-Directional 1.5KE51CA Littelfuse 1: £0.788 11,438In Stock	Mfr. Part No. 1.5KE51CA Mouser Part No 576-1.5KE51CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1500W 43.6V Bi-Directional Learn More about Littelfuse 1.5ke series diodes	Datasheet	11,438In Stock	Cut Tape £0.788 £0.395 £0.351 £0.271 Reel £0.199 £0.194	Min.: 1 Mult.: 1 : 1,200
ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A 5KP58A Littelfuse 1: £2.65 3,559In Stock	Mfr. Part No. 5KP58A Mouser Part No 576-5KP58A	Littelfuse	ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A Learn More about Littelfuse 5kp tvs diodes	Datasheet	3,559In Stock	Cut Tape £2.65 £1.74 £1.34 £1.20 £0.925 Reel £0.925	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 28.2V 400W 5% Bi-directional P4SMA33CA Littelfuse 1: £0.428 21,145In Stock	Mfr. Part No. P4SMA33CA Mouser Part No 576-P4SMA33CA	Littelfuse	ESD Protection Diodes / TVS Diodes 28.2V 400W 5% Bi-directional Learn More about Littelfuse tvsdiodes	Datasheet	21,145In Stock	Cut Tape £0.428 £0.23 £0.176 £0.134 Reel £0.08 View £0.108 £0.093 £0.075 £0.073 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 10.2Vr 600W 36A 5% Uni-Directional P6KE12A Littelfuse 1: £0.413 12,920In Stock	Mfr. Part No. P6KE12A Mouser Part No 576-P6KE12A	Littelfuse	ESD Protection Diodes / TVS Diodes 10.2Vr 600W 36A 5% Uni-Directional Learn More about Littelfuse p6ke diodes	Datasheet	12,920In Stock	Cut Tape £0.413 £0.217 £0.182 £0.143 View Reel £0.113 £0.131 £0.122 £0.113	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes SA16CA Bi-Directional SA16CA Littelfuse 1: £0.638 10,156In Stock	Mfr. Part No. SA16CA Mouser Part No 576-SA16CA	Littelfuse	ESD Protection Diodes / TVS Diodes SA16CA Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	10,156In Stock	Cut Tape £0.638 £0.29 £0.256 £0.196 View Reel £0.148 £0.188 £0.172 £0.148	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional SMAJ22A Littelfuse 1: £0.255 42,135In Stock	Mfr. Part No. SMAJ22A Mouser Part No 576-SMAJ22A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional Learn More about Littelfuse smaj tvs 400w diodes	Datasheet	42,135In Stock	Cut Tape £0.255 £0.121 £0.11 £0.086 Reel £0.061 View £0.085 £0.079 £0.052 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

Heat Pumps

Types of Circuit Protection

Customer Service Office

Company

Resources

Support

Share This

Heat Pumps

Types of Circuit Protection