U.S. Sensor’s NTC LL-31 and LL-41 “MELF” style glass encapsulated surface mount thermistors are manufactured using super stable NTC chips which are hermetically sealed in a glass package. The result is an extremely reliable surface mount package which is capable of withstanding the most severe environmental conditions. Tape and reeling for use with automatic insertion equipment is available.

 

Features
•	Surface mountable	•	High stability
•	Hermetically sealed glass package	•	Rated to 220°C operating temperature
•	Low cost
			"LL-31" SERIES
Options
•	Non-standard resistance values and tolerances
•	Point matched at specified temperatures
•	Tape and reel packaging

Specifications				"LL-41" SERIES  View Photo
•	Thermal time constant: LL-31 Series 5 seconds max, LL-41 series 8 seconds max
•	Dissipation constant: LL-31 series 1 mW/°C, LL-41 series 3 mW/°C

SURFACE MOUNT NTC LL-31 MICROMELF STYLE (220°C) Part Number Resistance Ohms @25°C * Resistance Tol. ± % R-T Curve Beta (K) 0-50°C View R-T Chart MM302F1K 3000 10 F 3420 MM502F1K 5000 10 F 3420 MM103J1K 10000 10 J 3890 MM153J1K 15000 10 J 3890 MM203J1K 20000 10 J 3890 MM104R1K 100000 10 R 4140 SURFACE MOUNT NTC LL-41 MELF STYLE (220°C) Part Number Resistance Ohms @25°C * Resistance Tol. ± % R-T Curve Beta (K) 0-50°C View R-T Chart SB302J1K 3000 10 J 3890 SB502J1K 5000 10 J 3890