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Specifications
Resistance @ 25℃:
10kΩ
B Constant (25℃/100℃):
-
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant Tolerance:
-
B Constant (25℃/50℃):
-
Mfr. Part #:
MM103J1K
Package:
MicroMELF
Key Attributes
Model Number:
MM103J1K
Product Description
Product Overview
Littelfuse LL-31 MicroMELF style glass encapsulated surface mount thermistors are manufactured using super stable NTC chips hermetically sealed in a glass package. This design ensures excellent long-term reliability and stability, even under severe environmental or thermal conditions. Their uniform dimensions make them ideal for automatic insertion equipment.
Product Attributes
- Brand: Littelfuse
- Series: LL-31 MicroMELF
- Style: MELF
- Encapsulation: Glass
- Mounting: Surface Mount
- Contact: Tinned Dumet
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Part Number | Resistance @ 25C (Ohms) | Resistance Tol. % @ 25C | Accuracy (C) 0-50C | 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) |
| 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.
2411181754_Littelfuse-MM103J1K_C17682612.pdf
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