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Specifications
Resistance @ 25℃:
500Ω
Operating Temperature:
-55℃~+220℃
B Constant (25℃/100℃):
-
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant Tolerance:
-
B Constant (25℃/50℃):
-
Mfr. Part #:
SM501B1K
Package:
DO-213AC,SOD-80
Key Attributes
Model Number:
SM501B1K
Product Description
Littelfuse LL-34 MiniMELF Surface Mount Thermistors
Littelfuse LL-34 MiniMELF style glass encapsulated surface mount thermistors are manufactured using super stable NTC chips hermetically sealed in a glass package. This construction ensures excellent long-term reliability and stability, even under severe environmental or thermal conditions. Their uniform dimensions make them ideal for automatic insertion equipment, offering high temperature capability up to +220C, a hermetically sealed glass package, and low cost.
Product Attributes
- Brand: Littelfuse
- Style: MiniMELF SM
- Package: Glass encapsulated, hermetically sealed
- Material: NTC chips
- Application: Surface Mount
Technical Specifications
| Part Number | Resistance @ 25C (Ohms) | Resistance Tol. % @ 25C | R-T Curve | Temperature Coefficient (%/C) @ 25C | Beta (K) 0-50C | Dissipation Constant, Nominal (mW/C) | Thermal Time Constant, Max. - Still Air (seconds) | Temperature Rating (C) |
| SM102B1K | 1000 | 10 | B | -3.3 | 2941 | 2 | 8 | -55 to +220 |
| SM102D1K | 1000 | 10 | D2 | _ | 3156 | 2 | 8 | -55 to +220 |
| SM102E1K | 1000 | 10 | E | -3.67 | 3263 | 2 | 8 | -55 to +220 |
| SM202F1K | 2000 | 10 | F | -3.86 | 3419 | 2 | 8 | -55 to +220 |
| SM222E1K | 2186 | 10 | E1 | -3.82 | 3320 | 2 | 8 | -55 to +220 |
| SM252B1K | 2500 | 10 | B | -3.31 | 2941 | 2 | 8 | -55 to +220 |
| SM252B4K | 2500 | 10 | B | -3.31 | 2941 | 2 | 8 | -55 to +220 |
| SM103F5K | 10000 | 10 | F | -3.86 | 3419 | 2 | 8 | -55 to +220 |
| SM103G1K | 10000 | 10 | G | -4.04 | 3575 | 2 | 8 | -55 to +220 |
| SM103J1F | 10000 | 1 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM103J1K | 10000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM403J1K | 10000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM472F1K | 10000 | 10 | F | -3.86 | 3419 | 2 | 8 | -55 to +220 |
| SM472G1K | 10000 | 10 | G | -4.03 | 3575 | 2 | 8 | -55 to +220 |
| SM501B1K | 10000 | 10 | B | -3.31 | 2941 | 2 | 8 | -55 to +220 |
| SM153J1K | 15000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM602F1K | 15000 | 10 | F | -3.86 | 3419 | 2 | 8 | -55 to +220 |
| SM203J1K | 20000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM253J1K | 25000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM303J1K | 30000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM104J1F | 100000 | 1 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM104J1K | 100000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM104J1O | 100000 | _ | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM104R1K | 100000 | 10 | R | -4.68 | 4140 | 2 | 8 | -55 to +220 |
| SM502F1K | 100000 | 10 | F | -3.86 | 3419 | 2 | 8 | -55 to +220 |
| SM503J1K | 100000 | 10 | J | -4.4 | 3892 | 2 | 8 | -55 to +220 |
| SM504R1K | 100000 | 10 | R | -4.68 | 4140 | 2 | 8 | -55 to +220 |
| SM254R1K | 250000 | 10 | R | -4.68 | 4140 | 2 | 8 | -55 to +220 |
| SM105V3K | 1000000 | 10 | V3 | -4.93 | 4369 | 2 | 8 | -55 to +220 |
| SM105R1K | 1000000 | 10 | R | -4.68 | 4140 | 2 | 8 | -55 to +220 |
2411200145_Littelfuse-SM501B1K_C17651926.pdf
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