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Specifications
Resistance @ 25℃:
10kΩ
Operating Temperature:
-55℃~+220℃
Tolerance:
±1%
Thermal Time Constant:
5s
B Constant (25℃/50℃):
3892K
Mfr. Part #:
MM103J1F
Package:
MicroMELF
Key Attributes
Model Number:
MM103J1F
Product Description
Littelfuse LL-31 MicroMELF Thermistors
Littelfuse LL-31 "MicroMELF" style glass encapsulated surface mount thermistors are manufactured using super stable NTC chips hermetically sealed in a glass package. This construction provides excellent long-term reliability and stability, even under severe environmental or thermal conditions. Their uniform dimensions make them suitable for automatic insertion equipment.
Product Attributes
- Brand: Littelfuse
- Style: MicroMELF, MELF
- Mounting: Surface Mount
- Encapsulation: Glass
- Contact: Tinned Dumet
Technical Specifications
| Part Number | Resistance (Ohms @25C) | Resistance Tol. (%) @ 25C | Accuracy (C) 0-50C | R-T Curve | Temperature Coefficient (% / C) @ 25C | Beta (K) 0-50C | Dissipation Constant (mW/C) | Thermal Time Constant (Max. - Still Air) (seconds) | Temperature Rating (C) |
| MM222E1K | 2186 | 10 | 0.5C | E1 | -3.82 | 3320 | 1 | 5 | -55 to +220 |
| MM302F1K | 3000 | 10 | 0.5C | F | -3.86 | 3419 | 1 | 5 | -55 to +220 |
| MM502F1K | 5000 | 10 | 0.5C | F | -3.86 | 3419 | 1 | 5 | -55 to +220 |
| MM103E1K | 10000 | 10 | _ | E1 | -3.82 | 3320 | 1 | 5 | -55 to +220 |
| MM103G1K | 10000 | 10 | _ | G | -4.03 | 3575 | 1 | 5 | -55 to +220 |
| MM103J1F | 10000 | 1 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM103J1K | 10000 | 10 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM153J1K | 15000 | 10 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM203J1F | 20000 | 1 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM203J1K | 20000 | 10 | 0.5C | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM104J1F | 100000 | 1 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM104J1K | 100000 | 10 | _ | J | -4.4 | 3892 | 1 | 5 | -55 to +220 |
| MM104R1K | 100000 | 10 | _ | R | -4.68 | 4140 | 1 | 5 | -55 to +220 |
| MM254R1K | 250000 | 10 | 0.5C | R | -4.68 | 4140 | 1 | 5 | -55 to +220 |
Note: Resistance tolerances of 1%, 2%, and 5% are available upon request.
2410010200_Littelfuse-MM103J1F_C5342253.pdf
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