U.S. Sensor
1832 W. Collins Ave
Orange, CA 92867
Tel: 800-777-6467
Tel: 714-639-1000
Fax: 714-639-1220
Email: sales@ussensor.com
"MELF" Style Surface Mount NTC Thermistors LL-34 MiniMELF
U.S. Sensor’s NTC LL-34 “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 • Low cost
• Hermetically sealed glass package • High stability
"LL -34" SERIE S
View Photo
Options
• Non-standard resistance values and
tolerances
• Point matched at specified temperatures
• Tape and reel packaging
Specifications
• Thermal time constant: 8 seconds max
• Dissipation cons tant: 2 mW/°C
• Maximum operating temperature: 220°C
SURFACE MOUNT NT C L L -34 MINIMELF STYLE (220°C)
Part Number Resistance
Ohms @25°C * Resista nce
Tol. ± % R-T Curve Beta (K)
0-50°C
View
R-T
Chart
SM501B1K 500 10 B 2941
SM102B1K 1000 10 B 2941
SM502F1K 5000 10 F 3419
SM103F5K 10000 10 F 3419
SM103G1K 10000 10 G 3575
SM103J1K 10000 10 J 3890
SM153J1K 15000 10 J 3890
SM203J1K 20000 10 J 3890
SM253J1K 25000 10 J 3890
SM303J1K 30000 10 J 3890
SM403J1K 40000 10 J 3890
SM503J1K 50000 10 J 3890
SM104J1K 100000 10 J 3890
SM104R1K 100000 10 R 4140
SM254R1K 250000 10 R 4140
SM105R1K 1000000 10 R 4140
SURFACE MOUNT NTC LL-34 MINIMELF INTERCHANGEABLE (220°C)
± 0.5 Accuracy
Part Number
(±0.5°C 0-50°C ) Resistance
Ohms @25°C R-T Curve Beta (K)
0-50°C View
R-T Chart
HM103J1A 10000 J 3890
HM153J1A 15000 J 3890
HM203J1A 20000 J 3890
HM503J1A 50000 J 3890
HM104J1A 100000 J 3890
SURFACE MOUNT NTC LL-34 MINI MELF INTERCHANGEABLE (220°C)
± 1.0 Acc uracy
Part Number
(±1.0°C 0-100°C ) Resistance
Ohms @25°C R-T Curve Beta (K)
0-50°C View
R-T Chart
WM103J1A 10000 J 3890
WM153J1A 15000 J 3890
WM203J1A 20000 J 3890
WM503J1A 50000 J 3890
WM104J1A 100000 J 3890
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