NTC Thermistors – Mouser Japan

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Surface-Mount Thermistors

Littelfuse Surface-Mount Thermistors offer a 0.7Ω to 500,000Ω resistance range and a maximum operating range of -55°C to +220°C. This Littelfuse portfolio includes end-banded chip thermistors, leadless top- and bottom-terminated chip thermistors, inrush current limiters (power thermistors), and more. These surface-mount modules are ideal for a wide variety of applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Series	B Parameter	Resistance	Power Rating	Tolerance	Mounting Style	Termination Style	Minimum Operating Temperature	Maximum Operating Temperature	Package / Case	Diameter	Length	Width	Height	Packaging
NTC Thermistors NTC THERMISTOR 100K OHM 0.5C MELF HM104J1A Littelfuse 1: ¥249.2 5,211In Stock	Mfr. Part # HM104J1A Mouser Part # 576-HM104J1A	Littelfuse	NTC Thermistors NTC THERMISTOR 100K OHM 0.5C MELF Learn More about Littelfuse surface mount thermistors	Datasheet	5,211In Stock	¥249.2 ¥227.6 ¥206 ¥197.7 View ¥192.7 ¥174.4 ¥167.8 ¥160.5 ¥148.2	Min.: 1 Mult.: 1	HM	3892 K	100 kOhms		0.5 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.0603 in	0.135 in	0.0603 in	0.0603 in	Bulk
NTC Thermistors THERMISTOR, US SENSOR WM103J1B Littelfuse 1: ¥943.4 2,756In Stock	Mfr. Part # WM103J1B Mouser Part # 803-WM103J1B	Littelfuse	NTC Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	2,756In Stock	¥943.4 ¥838.8 ¥755.8 ¥700.9 View ¥671 ¥639.5 ¥584.7 ¥566.4	Min.: 1 Mult.: 1	WM	3892 K	10 kOhms		1 C	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors NTC THERMISTOR 2K OHM 10% MELF SM202F1K Littelfuse 1: ¥328.9 459In Stock	Mfr. Part # SM202F1K Mouser Part # 576-SM202F1K	Littelfuse	NTC Thermistors NTC THERMISTOR 2K OHM 10% MELF Learn More about Littelfuse surface mount thermistors	Datasheet	459In Stock	¥328.9 ¥254.1 ¥212.6 ¥207.6 View ¥189.4 ¥164.6 ¥157.5 ¥149.2	Min.: 1 Mult.: 1	SM	3419 K	2 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors 1K OHM +/-10% SM102B1K Littelfuse 1: ¥267.4 691In Stock	Mfr. Part # SM102B1K Mouser Part # 803-SM102B1K	Littelfuse	NTC Thermistors 1K OHM +/-10% Learn More about Littelfuse surface mount thermistors	Datasheet	691In Stock	¥267.4 ¥254.1 ¥212.6 ¥207.6 View ¥189.4 ¥169.4 ¥159.1 ¥147	Min.: 1 Mult.: 1	SM	2941 K	1 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT KR502F0J Littelfuse 1: ¥122.9 3,475In Stock	Mfr. Part # KR502F0J Mouser Part # 576-KR502F0J	Littelfuse	NTC Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT Learn More about Littelfuse surface mount thermistors	Datasheet	3,475In Stock	¥122.9 ¥116.4 ¥109 ¥103.8 View ¥99.2 ¥99 ¥88.9 ¥83.5 ¥71.6	Min.: 1 Mult.: 1	KR	3550 K	5 kOhms	300 mW	5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	0805 (2012 metric)		0.0787 in	0.0492 in	0.05 in	Bulk
NTC Thermistors C THERMISTOR 10K OHM 5% 0603 SMT RB103J0J Littelfuse 1: ¥76.4 3,845In Stock	Mfr. Part # RB103J0J Mouser Part # 576-RB103J0J	Littelfuse	NTC Thermistors C THERMISTOR 10K OHM 5% 0603 SMT Learn More about Littelfuse surface mount thermistors	Datasheet	3,845In Stock	¥76.4 ¥70.9 ¥65.8 ¥62.6 View ¥61.6 ¥56 ¥53.2 ¥48 ¥44.5	Min.: 1 Mult.: 1		3976 K	10 kOhms		5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	0603 (1608 metric)		0.063 in	0.0315 in	0.0395 in	Bulk
NTC Thermistors THERMISTOR, U.S. SENSOR SM103J1F Littelfuse 1: ¥294 2,450In Stock 2,500Expected 10/5/2026	Mfr. Part # SM103J1F Mouser Part # 576-SM103J1F	Littelfuse	NTC Thermistors THERMISTOR, U.S. SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	2,450In Stock 2,500Expected 10/5/2026	¥294 ¥280.7 ¥237.5 ¥232.5 View ¥210.9 ¥187.7 ¥166.1	Min.: 1 Mult.: 1		3892 K	10 kOhms		1 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors NTC 10K OHM +/-1% MM103J1F Littelfuse 1: ¥191 1,992In Stock	Mfr. Part # MM103J1F Mouser Part # 803-MM103J1F	Littelfuse	NTC Thermistors NTC 10K OHM +/-1% Learn More about Littelfuse surface mount thermistors	Datasheet	1,992In Stock	¥191 ¥182.7 ¥171.1 ¥162.6 View ¥147 ¥141.4 ¥135 ¥124.6	Min.: 1 Mult.: 1	MM	3892 K	10 kOhms		1 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.053 in	0.075 in	0.053 in	0.049 in	Bulk
NTC Thermistors NTC THERMISTOR 1M OHM 10% MELF SM105R1K Littelfuse 1: ¥222.6 118In Stock	Mfr. Part # SM105R1K Mouser Part # 576-SM105R1K	Littelfuse	NTC Thermistors NTC THERMISTOR 1M OHM 10% MELF Learn More about Littelfuse surface mount thermistors	Datasheet	118In Stock	¥222.6 ¥210.9 ¥199.3 ¥189.4 View ¥182.7 ¥164.6 ¥155.8 ¥152	Min.: 1 Mult.: 1	SM	4140 K	1 mOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors THERMISTOR, U.S. SENSOR SM303J1K Littelfuse 1: ¥222.6 349In Stock	Mfr. Part # SM303J1K Mouser Part # 576-SM303J1K	Littelfuse	NTC Thermistors THERMISTOR, U.S. SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	349In Stock	¥222.6 ¥210.9 ¥199.3 ¥189.4 View ¥182.7 ¥164.6 ¥157.5 ¥147	Min.: 1 Mult.: 1	SM	3892 K	30 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.06 in	0.135 in	0.06 in	0.06 in
NTC Thermistors NTC 100K OHM +/-1% MM104J1F Littelfuse 1: ¥191 10In Stock 2,000On Order	Mfr. Part # MM104J1F Mouser Part # 803-MM104J1F	Littelfuse	NTC Thermistors NTC 100K OHM +/-1% Learn More about Littelfuse surface mount thermistors	Datasheet	10In Stock 2,000On Order On Order Ship Dates Mfr. #: MM104J1F Stock: 10 Can Ship Immediately On Order: 700 Expected 10/8/2026 300 Expected 10/23/2026 1,000 Expected 1/4/2027 Factory Lead-Time: 12 Weeks	¥191 ¥182.7 ¥171.1 ¥162.6 View ¥155.6 ¥141.4 ¥135 ¥124.6	Min.: 1 Mult.: 1	MM	3892 K	100 kOhms		1 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.053 in	0.075 in	0.053 in	0.049 in	Bulk
NTC Thermistors NTC 20K OHM +/-1% MM203J1F Littelfuse 1: ¥191 55In Stock	Mfr. Part # MM203J1F Mouser Part # 803-MM203J1F	Littelfuse	NTC Thermistors NTC 20K OHM +/-1% Learn More about Littelfuse surface mount thermistors	Datasheet	55In Stock	¥191 ¥182.7 ¥171.1 ¥162.6 View ¥147 ¥138.2 ¥132.5 ¥124.6	Min.: 1 Mult.: 1	MM	3892 K	20 kOhms		1 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MicroMELF-2	0.053 in	0.075 in			Bulk
NTC Thermistors NTC 10K OHM +/-10% SM103J1K-TR Littelfuse 1: ¥84.7 2,578In Stock	Mfr. Part # SM103J1K-TR Mouser Part # 803-SM103J1K-TR	Littelfuse	NTC Thermistors NTC 10K OHM +/-10% Learn More about Littelfuse industrial portfolio	Datasheet	2,578In Stock	Cut Tape ¥84.7 ¥79.9 ¥74.7 ¥70.9 View Reel ¥50.2 ¥67.6 ¥61 ¥58.1 ¥50.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SM	3892 K	10 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.06 in	0.135 in	0.06 in	0.06 in	Reel, Cut Tape, MouseReel
NTC Thermistors THERMISTOR, U.S. SENSOR SM502F1K Littelfuse 1: ¥222.6 103In Stock	Mfr. Part # SM502F1K Mouser Part # 803-SM502F1K	Littelfuse	NTC Thermistors THERMISTOR, U.S. SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	103In Stock	¥222.6 ¥210.9 ¥199.3 ¥189.4 View ¥182.7 ¥164.6 ¥157.5 ¥147	Min.: 1 Mult.: 1	SM	3419 K	5 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C		0.06 in	0.135 in	0.06 in	0.06 in	Bulk
NTC Thermistors NTC THRM CHIP 3750 10K 5% TR KR103G0J-TR Littelfuse 1: ¥74.7 3,219In Stock	Mfr. Part # KR103G0J-TR Mouser Part # 576-KR103G0J-TR	Littelfuse	NTC Thermistors NTC THRM CHIP 3750 10K 5% TR Learn More about Littelfuse surface mount thermistors	Datasheet	3,219In Stock	Cut Tape ¥74.7 ¥70.3 ¥65.4 ¥62.3 View Reel ¥46.5 ¥59.3 ¥53.3 ¥50.5 ¥46.5 MouseReel Available	Min.: 1 Mult.: 1 : 3,500															Reel, Cut Tape, MouseReel
NTC Thermistors THERMISTOR, US SENSO KR104R0J Littelfuse 1: ¥192.7 3,493In Stock	Mfr. Part # KR104R0J Mouser Part # 576-KR104R0J	Littelfuse	NTC Thermistors THERMISTOR, US SENSO Learn More about Littelfuse surface mount thermistors	Datasheet	3,493In Stock	¥192.7 ¥144 ¥115.1 ¥108.3 View ¥105.6 ¥88.9 ¥83.5 ¥76.6	Min.: 1 Mult.: 1	KR	4250 K	100 kOhms	300 mW	5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	0805 (2012 metric)		0.0787 in	0.0492 in	0.05 in
NTC Thermistors THERMISTOR US SENSOR BC103J1K Littelfuse 1: ¥402 172In Stock	Mfr. Part # BC103J1K Mouser Part # 803-BC103J1K	Littelfuse	NTC Thermistors THERMISTOR US SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	172In Stock	¥402 ¥383.7 ¥362.1 ¥347.1 View ¥333.9 ¥300.6 ¥294 ¥274.1	Min.: 1 Mult.: 1	BC	3892 K	10 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 150 C			0.04 in	0.04 in	0.015 in	Bulk
NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT RB103E0J Littelfuse 1: ¥114.6 240Expected 12/7/2026	Mfr. Part # RB103E0J Mouser Part # 576-RB103E0J	Littelfuse	NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT Learn More about Littelfuse rb thermistors	Datasheet	240Expected 12/7/2026	¥114.6 ¥87 ¥74.9 ¥72.3 View ¥61.6 ¥59 ¥53.5 ¥51 ¥44.5	Min.: 1 Mult.: 1	RB	3435 K	10 kOhms	150 mW	5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	0603 (1608 metric)		0.063 in	0.0315 in	0.0395 in	Bulk
NTC Thermistors NTC THERMISTOR 1K OHM 5% 1206 SMT LR102D0J Littelfuse 1: ¥289 250Expected 1/27/2027	Mfr. Part # LR102D0J Mouser Part # 576-LR102D0J	Littelfuse	NTC Thermistors NTC THERMISTOR 1K OHM 5% 1206 SMT Learn More about Littelfuse surface mount thermistors	Datasheet	250Expected 1/27/2027	¥289 ¥215.9 ¥172.7 ¥162.4 View ¥158.5 ¥158.3 ¥133 ¥122.6 ¥112.9	Min.: 1 Mult.: 1	LR	3250 K	1 kOhms	400 mW	5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	1206 (3216 metric)		0.126 in	0.063 in	0.05 in	Bulk
NTC Thermistors NTC THERMISTOR 10K O HM 0.5C MELF HM103J1A Littelfuse 2,500: ¥148.2 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # HM103J1A Mouser Part # 576-HM103J1A	Littelfuse	NTC Thermistors NTC THERMISTOR 10K O HM 0.5C MELF Learn More about Littelfuse surface mount thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥148.2	Min.: 2,500 Mult.: 2,500	HM	3892 K	10 kOhms		0.5 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.0603 in	0.135 in			Bulk
NTC Thermistors NTC THERMISTOR 10K OHM 10% MELF MM103J1K Littelfuse 1: ¥159.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # MM103J1K Mouser Part # 576-MM103J1K	Littelfuse	NTC Thermistors NTC THERMISTOR 10K OHM 10% MELF Learn More about Littelfuse surface mount thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥159.5 ¥151.3 ¥141.8 ¥135.2 View ¥129.4 ¥117.3 ¥112.8 ¥103.8	Min.: 1 Mult.: 1	MM	3892 K	10 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MicroMELF-2	0.053 in	0.075 in	0.053 in	0.049 in	Bulk
NTC Thermistors THERMISTOR RA103J0Q-TR Littelfuse 10,000: ¥33.4 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # RA103J0Q-TR Mouser Part # 576-RA103J0Q-TR	Littelfuse	NTC Thermistors THERMISTOR Learn More about Littelfuse surface mount thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel ¥33.4 ¥33.2	Min.: 10,000 Mult.: 10,000 : 10,000	RA	3900 K	10 kOhms		1 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C			0.0394 in	0.0197 in	0.028 in	Reel
NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT RB103K0J Littelfuse 4,000: ¥45 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # RB103K0J Mouser Part # 576-RB103K0J	Littelfuse	NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT Learn More about Littelfuse rb thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥45	Min.: 4,000 Mult.: 4,000	RB	4000 K	10 kOhms	150 mW	5 %	PCB Mount	SMD/SMT	- 40 C	+ 125 C	0603 (1608 metric)		0.063 in	0.0315 in	0.0395 in	Bulk
NTC Thermistors NTC THERMISTOR SB102F1K Littelfuse 1: ¥304 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # SB102F1K Mouser Part # 576-SB102F1K	Littelfuse	NTC Thermistors NTC THERMISTOR Learn More about Littelfuse surface mount thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥304 ¥234.2 ¥196 ¥191 View ¥174.4 ¥156.3 ¥154.5 ¥138.7	Min.: 1 Mult.: 1	SB	3419 K	1 kOhms		10 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MELF-2	0.096 in	0.135 in	0.06 in	0.096 in	Bulk
NTC Thermistors CUSTOM TEMPERATURE SENSOR SM104J1F Littelfuse 1: ¥368.7 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # SM104J1F Mouser Part # 576-SM104J1F	Littelfuse	NTC Thermistors CUSTOM TEMPERATURE SENSOR Learn More about Littelfuse surface mount thermistors	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥368.7 ¥284 ¥237.5 ¥232.5 View ¥210.9 ¥196 ¥184.4 ¥181 ¥166.1	Min.: 1 Mult.: 1		3892 K	100 kOhms		1 %	PCB Mount	SMD/SMT	- 55 C	+ 220 C	MiniMELF-2	0.06 in	0.135 in