USUR1000-103G-06
NTC THERMISTOR, 10K, WIRE LEADED
- Manufacturer: LITTELFUSE
- Product type:
- Thermistor Type:Ring Lug, Probe; Resistance (25°C):10kohm; Product Range:USUR1000 Series; B-Constant:3892K; B-Constant Tolerance:-; Probe Material:-; Lead Length:152. 43AC9661
- B-Constant: 3892K
- Lead Length: 152.4mm
- NTC Mounting: Free Hanging
- NTC Case Size: -
- Product Range: USUR1000 Series
- Qualification: -
- Probe Diameter: -
- Probe Material: -
- Thermistor Type: Ring Lug, Probe
- Resistance (25°C): 10kohm
- B-Constant Tolerance: -
- Thermistor Case Style: -
- Operating Temperature Max: 125°C
- Operating Temperature Min: -40°C
- Resistance Tolerance (25°C): ± 2%
- Thermal Time Constant (in Air): -
- Automotive Qualification Standard: -
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 6.74 € |
| Current stock | 10+ |
| Lead time | 30 days |
**Thermistor Probes and Assemblies** Surface Temperature Sensing ## USUR1000 Series UL Recogniz ~~ed Ring Lug Thermistor Assembly~~ ## **Description** Littelfuse UL Recognized ring lug thermistor probe assemblies are manufacturing using super stable NTC chips which are potted into a ring lug housing with thermally conductive epoxy. Designed for rapid thermal response and excellent long-term stability, these devices can be used in a wide range of surface temperature sensing applications. ## **Features** - [Insulated lead wire rated ] •[Ring tongue mounting ] for 300V minimum hole diameter 0.145” nominal - •[User selectable ] lead length •[Ring tongue mounting ] hole stud size #6 ## **Dimensions** **==> picture [248 x 169] intentionally omitted <==** **----- Start of picture text -----**<br> 28 AWG, SINGLE CONDUCTOR BARREL THERMISTOR ELEMENT POTTED<br>INSULATED WIRE, DIAMETER: IN BARREL OF RING LUG HOUSING<br>UL RATED FOR 300 VOLTS MINIMUM<br>& 125˚C MINIMUM B<br>A<br>C<br>— F | t et<br>D<br>E<br>KYNAR SHRINK<br>SLEEVING<br>Dim “L” is the MIN lead wire length,<br>and is specified by the last two digits<br>of the part number (USUR1000-xxx-xx)<br>e.g. USUR1000-102G-03 would have<br>a MIN lead wire length of 3”<br>**----- End of picture text -----**<br> ## **Part Numbering System** USUR 1000 Series ~~J 7~~ No Significance **Note:** Not all combinations of Part Number codes are available. Contact Littelfuse for details. Dimensions in inches. |**A**|**B**|**C**| |---|---|---| |0.250”<br>± 0.070”<br>Strip|0.215”<br>± 0.020”|0.280”<br>± 0.025”| |||| |**D**|**E**|**F**| |0.615”<br>± 0.025”|0.400”<br>± 0.250”<br>Long|Dim. “L”<br>Min.| © 2018 Littelfuse, Inc. Revised: March 13, 2018 Specifications are subject to change without notice. littelfuse.com **1** **Thermistor Probes and Assemblies** Surface Temperature Sensing **==> picture [93 x 32] intentionally omitted <==** ## USUR1000 Series UL Recogniz ~~ed Ring Lug Thermistor Assembly~~ **==> picture [506 x 528] intentionally omitted <==** **----- Start of picture text -----**<br> Specifications<br>Part Resistance Resistance Tol. R-T Beta (K) Max Power Temperature<br>Number Ohms @25°C ± % @ 25°C Curve 0-50°C Rating (mW) Rating (°C)<br>USUR1000-102G 1000 2 J 3892 20 -40 to +125<br>USUR1000-102H 1000 3 J 3892 20 -40 to +125<br>USUR1000-102J 1000 5 J 3892 20 -40 to +125<br>USUR1000-102K 1000 10 J 3892 20 -40 to +125<br>USUR1000-222G 2252 2 J 3892 20 -40 to +125<br>USUR1000-222H 2252 3 J 3892 20 -40 to +125<br>USUR1000-222J 2252 5 J 3892 20 -40 to +125<br>USUR1000-222K 2252 10 J 3892 20 -40 to +125<br>USUR1000-302G 3000 2 J 3892 20 -40 to +125<br>USUR1000-302H 3000 3 J 3892 20 -40 to +125<br>USUR1000-302J 3000 5 J 3892 20 -40 to +125<br>USUR1000-302K 3000 10 J 3892 20 -40 to +125<br>USUR1000-502G 5000 2 J 3892 20 -40 to +125<br>USUR1000-502H 5000 3 J 3892 20 -40 to +125<br>USUR1000-502J 5000 5 J 3892 20 -40 to +125<br>USUR1000-502K 5000 10 J 3892 20 -40 to +125<br>USUR1000-103G 10000 2 J 3892 20 -40 to +125<br>USUR1000-103H 10000 3 J 3892 20 -40 to +125<br>USUR1000-103J 10000 5 J 3892 20 -40 to +125<br>USUR1000-103K 10000 10 J 3892 20 -40 to +125<br>**----- End of picture text -----**<br> © 2018 Littelfuse, Inc. Revised: March 13, 2018 Specifications are subject to change without notice. littelfuse.com **2** **Thermistor Probes and Assemblies** Surface Temperature Sensing **==> picture [93 x 33] intentionally omitted <==** ## USUR1000 Series UL Recogniz ~~ed Ring Lug Thermistor Assembly~~ ## **Specifications** **==> picture [506 x 412] intentionally omitted <==** **----- Start of picture text -----**<br> Part Resistance Resistance Tol. R-T Beta (K) Max Power Temperature<br>Number Ohms @25°C ± % @ 25°C Curve 0-50°C Rating (mW) Rating (°C)<br>USUR1000-203G 20000 2 J 3892 20 -40 to +125<br>USUR1000-203H 20000 3 J 3892 20 -40 to +125<br>USUR1000-203J 20000 5 J 3892 20 -40 to +125<br>USUR1000-203K 20000 10 J 3892 20 -40 to +125<br>USUR1000-303G 30000 2 J 3892 20 -40 to +125<br>USUR1000-303H 30000 3 J 3892 20 -40 to +125<br>USUR1000-303J 30000 5 J 3892 20 -40 to +125<br>USUR1000-303K 30000 10 J 3892 20 -40 to +125<br>USUR1000-503G 50000 2 J 3892 20 -40 to +125<br>USUR1000-503H 50000 3 J 3892 20 -40 to +125<br>USUR1000-503J 50000 5 J 3892 20 -40 to +125<br>USUR1000-503K 50000 10 J 3892 20 -40 to +125<br>USUR1000-104G 100000 2 J 3892 20 -40 to +125<br>USUR1000-104H 100000 3 J 3892 20 -40 to +125<br>USUR1000-104J 100000 5 J 3892 20 -40 to +125<br>USUR1000-104K 100000 10 J 3892 20 -40 to +125<br>**----- End of picture text -----**<br> > **Disclaimer Notice** - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics © 2018 Littelfuse, Inc. Revised: March 13, 2018 Specifications are subject to change without notice. littelfuse.com **3**
Updated at June 8, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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