Product Overview
Littelfuse low cost interchangeable glass encapsulated thermistors are manufactured using super stable, precision NTC chips hermetically sealed in a glass (DO-35 diode style) package. This design ensures excellent long-term reliability and stability, even under severe environmental or thermal conditions. Their interchangeability eliminates the need for costly individual circuit calibration, and their uniform dimensions with axial lead configuration are ideal for automatic insertion equipment. Suitable for uses requiring precise temperature sensing and stability.
Product Attributes
- Brand: Littelfuse
- Certifications: UL Recognized (E232830)
- Package Type: DO-35 Glass Encapsulated
- Lead Wires: Tinned CSS, Solderable or Weldable
- Temperature Rating: -40 to +150C
Technical Specifications
| Part Number | Resistance Ohms @25C | Resistance Tol. % @ 25C | Temperature Coefficient (%/C) @ 25C | Beta (K) 0-50C | Max. Power Rating (mW) | Dissipation Constant, Nominal (mW/C) | Temperature Rating (C) | |
| USUG1000-103G | 10000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-103J | 10000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-103K | 10000 | 10 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-203G | 20000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-203J | 20000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-203K | 20000 | 10 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-253G | 25000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-253J | 25000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-253K | 25000 | 10 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-303G | 30000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-303J | 30000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-303K | 30000 | 10 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-503G | 50000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-503J | 50000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-503K | 50000 | 10 | J | -3.67 | 3892 | 20 | 2 | -40 to +150 |
| USUG1000-104G | 100000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-104J | 100000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-104K | 100000 | 10 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-254G | 250000 | 2 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-254J | 250000 | 5 | J | 3892 | 20 | 2 | -40 to +150 | |
| USUG1000-254K | 250000 | 10 | J | 3892 | 20 | 2 | -40 to +150 |
Note: Resistance tolerances of 1%, 2%, and 5% are available upon request.
2506271420_Littelfuse-USUG1000-103G_C17678390.pdf
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