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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Resettable Fuses - PPTC 5A 30V 100A Imax RUEF500K-2 Littelfuse 1: $1.16 5,890In Stock	Mfr. Part # RUEF500K-2 Mouser Part # 650-RUEF500K-2	Littelfuse	Resettable Fuses - PPTC 5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	5,890In Stock	Cut Tape $1.16 $1.07 $0.885 $0.818 Reel $0.51 View $0.735 $0.677 $0.491	Min.: 1 Mult.: 1 : 1,500
Coded Rotary Switches DIP / Rotary DIP RTE0400N04 C&K 1: $8.26 3,910In Stock	Mfr. Part # RTE0400N04 Mouser Part # 611-RTE0400N04	C&K	Coded Rotary Switches DIP / Rotary DIP Learn More about C&K ckswitches rte switches	Datasheet	3,910In Stock	$8.26 $7.05 $6.59 $5.95 View $5.88 $5.17 Quote	Min.: 1 Mult.: 1
Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW RTE1000N14 C&K 1: $9.06 2,647In Stock	Mfr. Part # RTE1000N14 Mouser Part # 611-RTE1000N14	C&K	Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW Learn More about C&K ckswitches rte switches	Datasheet	2,647In Stock	$9.06 $7.96 $7.37 $6.58 View $6.14 $5.84 $5.34 $5.33	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185-2 Littelfuse 1: $0.767 4,291In Stock	Mfr. Part # RUEF185-2 Mouser Part # 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 $0.767 $0.699 $0.581 $0.537 Reel $0.308 View $0.482 $0.445 $0.395 $0.289	Min.: 1 Mult.: 1 : 3,000
Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW RTE1000V14 C&K 1: $6.02 4,457In Stock	Mfr. Part # RTE1000V14 Mouser Part # 611-RTE1000V14	C&K	Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW Learn More about C&K ckswitches rte switches	Datasheet	4,457In Stock	$6.02 $5.33 $5.03 $4.52 View $4.16 $3.99 $3.71 $3.54	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400K-2 Littelfuse 1: $0.871 3,000In Stock	Mfr. Part # RUEF400K-2 Mouser Part # 650-RUEF400K-2	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	3,000In Stock	Cut Tape $0.871 $0.754 $0.654 $0.597 Reel $0.451 View $0.547 $0.514 $0.416 $0.399	Min.: 1 Mult.: 1 : 1,500
Resettable Fuses - PPTC 1.6A 30V 40A Imax RUEF160-AP Littelfuse 1: $0.754 3,673In Stock	Mfr. Part # RUEF160-AP Mouser Part # 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 $0.754 $0.686 $0.571 $0.527 Reel $0.319 View $0.473 $0.403 $0.293 $0.283	Min.: 1 Mult.: 1 : 2,000
Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated RUEF250U-2 Littelfuse 1: $0.767 3,930In Stock	Mfr. Part # RUEF250U-2 Mouser Part # 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 $0.767 $0.605 $0.525 $0.485 Reel $0.334 View $0.447 $0.423 $0.398 $0.315	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 9A 30V 40A Imax RUEF900K-2 Littelfuse 1: $1.81 1,410In Stock	Mfr. Part # RUEF900K-2 Mouser Part # 650-RUEF900K-2	Littelfuse	Resettable Fuses - PPTC 9A 30V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	1,410In Stock	Cut Tape $1.81 $1.66 $1.38 $1.27 Reel $0.831 View $1.14 $1.05 $0.746	Min.: 1 Mult.: 1 : 1,000
Resettable Fuses - PPTC 30V 40A 0.90W PolySwitch Reset Dev RUEF160S-RA Littelfuse 1: $0.65 1,904In Stock	Mfr. Part # RUEF160S-RA Mouser Part # 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	$0.65 $0.497 $0.419 $0.38 View $0.342 $0.289 $0.267 $0.239	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.1A 30V 40A Imax RUEF110S-1 Littelfuse 1: $0.806 834In Stock	Mfr. Part # RUEF110S-1 Mouser Part # 650-RUEF110S-1	Littelfuse	Resettable Fuses - PPTC 1.1A 30V 40A Imax Learn More about Littelfuse indoor led protection	Datasheet	834In Stock	Cut Tape $0.806 $0.633 $0.534 $0.469 Reel $0.358 View $0.421 $0.329 $0.295	Min.: 1 Mult.: 1 : 500
Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW RTE1000G14 C&K 1: $6.55 6,097In Stock	Mfr. Part # RTE1000G14 Mouser Part # 611-RTE1000G14	C&K	Coded Rotary Switches 10 FLUSH SCRDRV 0.1A 30VDC LW PRO DIP SW Learn More about C&K ckswitches rte switches	Datasheet	6,097In Stock	Cut Tape $6.55 $5.47 $5.07 $4.52 Reel $3.74 View $4.20 $3.99 $3.67 MouseReel Available	Min.: 1 Mult.: 1 : 1,250
Power Switch ICs - Power Distribution 28V/6A Bi-directional load switch LS24062RQ23 Littelfuse 1: $4.04 87In Stock 5,000Expected 11/10/2026	Mfr. Part # LS24062RQ23 Mouser Part # 576-LS24062RQ23	Littelfuse	Power Switch ICs - Power Distribution 28V/6A Bi-directional load switch Learn More about Littelfuse ls24062rq23 bidirectional efuse	Datasheet	87In Stock 5,000Expected 11/10/2026	Cut Tape $4.04 $3.03 $2.77 $2.48 View Reel $2.15 $2.35 $2.30 $2.24 $2.18 $2.15 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 12 KV .5pF Diode Array SP7538PUTG Littelfuse 1: $2.07 27,651In Stock 18,000Expected 11/10/2026	Mfr. Part # SP7538PUTG Mouser Part # 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 11/10/2026	Cut Tape $2.07 $1.31 $0.976 $0.87 View Reel $0.512 $0.681 $0.615 $0.512 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Coded Rotary Switches FLUSH SMT RTE0400G04 C&K 1: $7.66 2,912In Stock	Mfr. Part # RTE0400G04 Mouser Part # 611-RTE0400G04	C&K	Coded Rotary Switches FLUSH SMT Learn More about C&K ckswitches rte switches	Datasheet	2,912In Stock	Cut Tape $7.66 $6.68 $6.19 $5.43 Reel $4.59 View $5.15 $4.85 $4.38 MouseReel Available	Min.: 1 Mult.: 1 : 1,250
Coded Rotary Switches 10Pos BCD, Thru Hole RTE DIP Switch RTE1002V14 C&K 1: $7.57 1,076In Stock	Mfr. Part # RTE1002V14 Mouser Part # 611-RTE1002V14	C&K	Coded Rotary Switches 10Pos BCD, Thru Hole RTE DIP Switch Learn More about C&K ckswitches rte switches	Datasheet	1,076In Stock	$7.57 $6.60 $6.25 $5.71 View $5.23 $5.17 $4.97 $4.63 Quote	Min.: 1 Mult.: 1
Resettable Fuses - PPTC .9A 30V 100A Imax RUEF090 Littelfuse 1: $0.559 19,440In Stock	Mfr. Part # RUEF090 Mouser Part # 650-RUEF090	Littelfuse	Resettable Fuses - PPTC .9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	19,440In Stock	$0.559 $0.516 $0.429 $0.391 View $0.356 $0.319 $0.30 $0.29 $0.281	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.1A 30V 100A Imax RUEF110-2 Littelfuse 1: $0.715 6,265In Stock	Mfr. Part # RUEF110-2 Mouser Part # 650-RUEF110-2	Littelfuse	Resettable Fuses - PPTC 1.1A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	6,265In Stock	Cut Tape $0.715 $0.655 $0.545 $0.502 View Reel $0.308 $0.451 $0.416 $0.385 $0.308	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 1.35A 30V 100A Imax RUEF135 Littelfuse 1: $0.585 33,352In Stock	Mfr. Part # RUEF135 Mouser Part # 650-RUEF135	Littelfuse	Resettable Fuses - PPTC 1.35A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	33,352In Stock	$0.585 $0.54 $0.447 $0.413 View $0.363 $0.337 $0.315 $0.294	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.6A 30V 100A Imax RUEF160 Littelfuse 1: $0.598 13,819In Stock	Mfr. Part # RUEF160 Mouser Part # 650-RUEF160	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	13,819In Stock	$0.598 $0.55 $0.458 $0.404 View $0.38 $0.348 $0.321 $0.302	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 30V 100A Imax RUEF185 Littelfuse 1: $0.65 20,679In Stock	Mfr. Part # RUEF185 Mouser Part # 650-RUEF185	Littelfuse	Resettable Fuses - PPTC 1.85A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	20,679In Stock	$0.65 $0.582 $0.485 $0.406 View $0.38 $0.348 $0.329 $0.319 $0.308	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 2.5A 30V 100A Imax RUEF250-2 Littelfuse 1: $0.78 7,768In Stock 30,000Expected 1/18/2027	Mfr. Part # RUEF250-2 Mouser Part # 650-RUEF250-2	Littelfuse	Resettable Fuses - PPTC 2.5A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	7,768In Stock 30,000Expected 1/18/2027	Cut Tape $0.78 $0.718 $0.595 $0.55 View Reel $0.341 $0.494 $0.456 $0.42 $0.341	Min.: 1 Mult.: 1 : 3,000
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300 Littelfuse 1: $0.806 24,784In Stock 29,500Expected 2/17/2027	Mfr. Part # RUEF300 Mouser Part # 650-RUEF300	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	24,784In Stock 29,500Expected 2/17/2027	$0.806 $0.673 $0.577 $0.456 View $0.432 $0.395 $0.373 $0.356 $0.342	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300-2 Littelfuse 1: $0.832 13,222In Stock	Mfr. Part # RUEF300-2 Mouser Part # 650-RUEF300-2	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	13,222In Stock	Cut Tape $0.832 $0.766 $0.636 $0.586 View Reel $0.365 $0.528 $0.486 $0.449 $0.365	Min.: 1 Mult.: 1 : 2,500
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400 Littelfuse 1: $0.793 16,365In Stock	Mfr. Part # RUEF400 Mouser Part # 650-RUEF400	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	16,365In Stock	$0.793 $0.728 $0.605 $0.554 View $0.502 $0.451 $0.41	Min.: 1 Mult.: 1

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