Circuit Protection – Mouser Finland

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PLC Design Solutions

Littelfuse Programmable Logic Controller (PLC) Design Solutions feature products that address the evolving demands of industrial automation, artificial intelligence (AI), machine learning (ML), renewable energy, and electric vehicles (EVs). These PLC circuit protection and power control products are designed to meet these challenges with precision and reliability. The components improve system uptime and resilience, from safeguarding power supplies to ensuring the reliable switching of loads. This PLC Design Solutions lineup from Littelfuse helps streamline designs and speed up time to market while ensuring compliance with global safety standards.

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Types of Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Resettable Fuses - PPTC 9A 30V 100A Imax RUEF900 Littelfuse 1: 0,989 € 17 289In Stock	Mfr. Part No. RUEF900 Mouser Part No 650-RUEF900	Littelfuse	Resettable Fuses - PPTC 9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	17 289In Stock	0,989 € 0,877 € 0,744 € 0,689 € View 0,612 € 0,57 € 0,565 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500K-2 Littelfuse 1: 0,765 € 5 890In Stock	Mfr. Part No. RUEF500K-2 Mouser Part No 650-RUEF500K-2	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	5 890In Stock	Cut Tape 0,765 € 0,706 € 0,586 € 0,541 € Reel 0,337 € View 0,486 € 0,448 € 0,323 € 0,316 €	Min.: 1 Mult.: 1 : 1 500
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185-2 Littelfuse 1: 0,507 € 4 291In Stock	Mfr. Part No. RUEF185-2 Mouser Part No 650-RUEF185-2	Littelfuse	Resettable Fuses - PPTC 1.85A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4 291In Stock	Cut Tape 0,507 € 0,463 € 0,384 € 0,355 € View Reel 0,258 € 0,319 € 0,294 € 0,258 € 0,258 €	Min.: 1 Mult.: 1 : 3 000
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400K-2 Littelfuse 1: 0,499 € 3 000In Stock	Mfr. Part No. RUEF400K-2 Mouser Part No 650-RUEF400K-2	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3 000In Stock	Cut Tape 0,499 € 0,451 € 0,396 € 0,37 € Reel 0,28 € View 0,343 € 0,323 € 0,265 € 0,264 €	Min.: 1 Mult.: 1 : 1 500
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160-AP Littelfuse 1: 0,499 € 3 673In Stock	Mfr. Part No. RUEF160-AP Mouser Part No 650-RUEF160-AP	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3 673In Stock	Cut Tape 0,499 € 0,454 € 0,378 € 0,348 € Reel 0,21 € View 0,313 € 0,267 € 0,195 €	Min.: 1 Mult.: 1 : 2 000
Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated RUEF250U-2 Littelfuse 1: 0,464 € 3 930In Stock	Mfr. Part No. RUEF250U-2 Mouser Part No 650-RUEF250U-2	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated Learn More about Littelfuse radial leaded pptcs	Datasheet	3 930In Stock	Cut Tape 0,464 € 0,366 € 0,323 € 0,304 € Reel 0,215 € View 0,283 € 0,27 € 0,256 € 0,208 €	Min.: 1 Mult.: 1 : 3 000
Resettable Fuses - PPTC 9A 30V 40A Imax RUEF900K-2 Littelfuse 1: 1,20 € 1 410In Stock	Mfr. Part No. RUEF900K-2 Mouser Part No 650-RUEF900K-2	Littelfuse	Resettable Fuses - PPTC 9A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1 410In Stock	Cut Tape 1,20 € 1,10 € 0,912 € 0,84 € Reel 0,55 € View 0,755 € 0,697 € 0,514 €	Min.: 1 Mult.: 1 : 1 000
Resettable Fuses - PPTC 30V 40A 0.90W PolySwitch Reset Dev RUEF160S-RA Littelfuse 1: 0,43 € 1 904In Stock	Mfr. Part No. RUEF160S-RA Mouser Part No 650-RUEF160S-RA	Littelfuse	Resettable Fuses - PPTC 30V 40A 0.90W PolySwitch Reset Dev Learn More about Littelfuse indoor led protection	Datasheet	1 904In Stock	0,43 € 0,329 € 0,277 € 0,251 € View 0,226 € 0,191 € 0,176 € 0,158 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.1A 30V 40A Imax RUEF110S-1 Littelfuse 1: 0,533 € 834In Stock	Mfr. Part No. RUEF110S-1 Mouser Part No 650-RUEF110S-1	Littelfuse	Resettable Fuses - PPTC 1.1A 30V 40A Imax Learn More about Littelfuse indoor led protection	Datasheet	834In Stock	Cut Tape 0,533 € 0,419 € 0,353 € 0,31 € Reel 0,237 € View 0,279 € 0,218 € 0,195 €	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes 12 KV .5pF Diode Array SP7538PUTG Littelfuse 1: 1,37 € 27 651In Stock 18 000Expected 10/11/2026	Mfr. Part No. SP7538PUTG Mouser Part No 576-SP7538PUTG	Littelfuse	ESD Protection Diodes / TVS Diodes 12 KV .5pF Diode Array Learn More about Littelfuse sp0544t sp7538p	Datasheet	27 651In Stock 18 000Expected 10/11/2026	Cut Tape 1,37 € 0,869 € 0,646 € 0,575 € View Reel 0,39 € 0,451 € 0,407 € 0,39 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Resettable Fuses - PPTC .9A 30V 100A Imax RUEF090 Littelfuse 1: 0,37 € 19 440In Stock	Mfr. Part No. RUEF090 Mouser Part No 650-RUEF090	Littelfuse	Resettable Fuses - PPTC .9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	19 440In Stock	0,37 € 0,341 € 0,284 € 0,259 € View 0,236 € 0,213 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.35A 30V 100A Imax RUEF135 Littelfuse 1: 0,387 € 33 321In Stock	Mfr. Part No. RUEF135 Mouser Part No 650-RUEF135	Littelfuse	Resettable Fuses - PPTC 1.35A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	33 321In Stock	0,387 € 0,357 € 0,296 € 0,273 € View 0,24 € 0,223 € 0,208 € 0,194 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.6A 30V 100A Imax RUEF160 Littelfuse 1: 0,396 € 13 819In Stock	Mfr. Part No. RUEF160 Mouser Part No 650-RUEF160	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	13 819In Stock	0,396 € 0,364 € 0,303 € 0,279 € View 0,251 € 0,235 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185 Littelfuse 1: 0,43 € 15 559In Stock	Mfr. Part No. RUEF185 Mouser Part No 650-RUEF185	Littelfuse	Resettable Fuses - PPTC 1.85A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	15 559In Stock	0,43 € 0,385 € 0,321 € 0,268 € View 0,251 € 0,24 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250 Littelfuse 1: 0,439 € 42 620In Stock 18 000On Order	Mfr. Part No. RUEF250 Mouser Part No 650-RUEF250	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	42 620In Stock 18 000On Order On Order Ship Dates Mfr. No: RUEF250 Stock: 42 620 Can Dispatch Immediately On Order: 7 000 Pending 11 000 Expected 12/11/2026 Factory Lead Time: 17 Weeks	0,439 € 0,405 € 0,336 € 0,296 € View 0,279 € 0,254 € 0,245 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250-2 Littelfuse 1: 0,516 € 7 718In Stock 30 000Expected 18/01/2027	Mfr. Part No. RUEF250-2 Mouser Part No 650-RUEF250-2	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	7 718In Stock 30 000Expected 18/01/2027	Cut Tape 0,516 € 0,475 € 0,394 € 0,364 € View Reel 0,226 € 0,327 € 0,302 € 0,278 € 0,226 €	Min.: 1 Mult.: 1 : 3 000
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300 Littelfuse 1: 0,516 € 25 059In Stock 29 500Expected 25/01/2027	Mfr. Part No. RUEF300 Mouser Part No 650-RUEF300	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	25 059In Stock 29 500Expected 25/01/2027	0,516 € 0,415 € 0,36 € 0,292 € View 0,286 € 0,247 € 0,233 € 0,227 € 0,226 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300-2 Littelfuse 1: 0,55 € 13 222In Stock	Mfr. Part No. RUEF300-2 Mouser Part No 650-RUEF300-2	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	13 222In Stock	Cut Tape 0,55 € 0,507 € 0,421 € 0,388 € View Reel 0,242 € 0,349 € 0,322 € 0,297 € 0,242 €	Min.: 1 Mult.: 1 : 2 500
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400 Littelfuse 1: 0,525 € 16 360In Stock	Mfr. Part No. RUEF400 Mouser Part No 650-RUEF400	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	16 360In Stock	0,525 € 0,482 € 0,40 € 0,369 € View 0,332 € 0,301 € 0,273 € 0,271 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400-2 Littelfuse 1: 0,679 € 4 933In Stock	Mfr. Part No. RUEF400-2 Mouser Part No 650-RUEF400-2	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4 933In Stock	Cut Tape 0,679 € 0,625 € 0,519 € 0,471 € Reel 0,298 € View 0,423 € 0,385 € 0,286 €	Min.: 1 Mult.: 1 : 1 500
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500 Littelfuse 1: 0,671 € 22 181In Stock	Mfr. Part No. RUEF500 Mouser Part No 650-RUEF500	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	22 181In Stock	0,671 € 0,616 € 0,511 € 0,467 € View 0,412 € 0,383 € 0,359 € 0,354 € 0,337 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 100A Imax RUEF600 Littelfuse 1: 0,671 € 21 428In Stock 19 250Expected 18/01/2027	Mfr. Part No. RUEF600 Mouser Part No 650-RUEF600	Littelfuse	Resettable Fuses - PPTC 6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	21 428In Stock 19 250Expected 18/01/2027	0,671 € 0,619 € 0,514 € 0,475 € View 0,448 € 0,442 € 0,437 € 0,426 € 0,421 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6A 30V 40A Imax RUEF600K-2 Littelfuse 1: 0,851 € 4 542In Stock	Mfr. Part No. RUEF600K-2 Mouser Part No 650-RUEF600K-2	Littelfuse	Resettable Fuses - PPTC 6A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	4 542In Stock	Cut Tape 0,851 € 0,785 € 0,652 € 0,601 € Reel 0,393 € View 0,541 € 0,499 € 0,391 €	Min.: 1 Mult.: 1 : 1 000
Resettable Fuses - PPTC 7A 30V 100A Imax RUEF700 Littelfuse 1: 0,74 € 10 231In Stock	Mfr. Part No. RUEF700 Mouser Part No 650-RUEF700	Littelfuse	Resettable Fuses - PPTC 7A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	10 231In Stock	0,74 € 0,678 € 0,538 € 0,507 € View 0,466 € 0,429 € 0,405 € 0,397 € 0,394 €	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 8A 30V 100A Imax RUEF800 Littelfuse 1: 0,808 € 5 191In Stock	Mfr. Part No. RUEF800 Mouser Part No 650-RUEF800	Littelfuse	Resettable Fuses - PPTC 8A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	5 191In Stock	0,808 € 0,718 € 0,614 € 0,526 € View 0,493 € 0,453 €	Min.: 1 Mult.: 1

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PLC Design Solutions

Types of Circuit Protection