YM120C20N122
PTC Thermistor, 1.2 kohm, 265 VAC, Through Hole, YM Series
- Manufacturer: AMPHENOL ADVANCED SENSORS
- Product type: PTC Thermistors
- SVHC: No SVHC (07-Jul-2017)
- Applications: Over Current, Over Temperature & Over Voltage Protection
- Trip Current: 28mA
- Product Range: YM Series
- Qualification: -
- Thermistor Type: Disc, Radial Leaded
- Resistance (25°C): 1.2kohm
- Holding Current Max: 20mA
- Thermistor Mounting: Through Hole
- Operating Voltage Max: 265VAC
- PTC Thermistor Diameter: 4mm
- Operating Temperature Max: 55°C
- Operating Temperature Min: 0°C
- Switching Temperature Max: 120°C
- Switching Temperature Min: -
- Resistance Tolerance (25°C): ± 20%
| Delivery and price | |
|---|---|
| Units per pack | 1500 |
| Price | 1.41 € |
| Current stock | 10+ |
| Lead time | 30 days |
## Type YM Series Thermometrics PTC Thermistors ## **Description** ## **Applications** Thermometrics YM Series consists of a range of radially-wired PTC disc thermistors with silicone resin coating. - Designed for general purpose over-current, overvoltage and direct over-temperature protection ## **Features** ## **Packaging** - Fast switching times - Operation up to 265V rms All types in the YM range are available loosepacked, as shown in the drawing. Devices are also available on bandolier (tape & reel): types with diameter a <12 mm comply with IEC 286-2. - Wide range of operating current levels - Excellent stability To identify the packaging required, replace N in the product codes shown in table as follows: - Fail-safe operation ## **YM** - Solid state - High performance barium titanate ceramic - Suitable for automatic PCB insertion Bandoliered ......................................................R* Loose-packed .................................................N **YQS** Bandoliered ...................................................Add T suffix Pack quantities: Loose-packed .........................................500-2500/box Bandoliered :........................................ 375-1500/reel *YM120D260N150 *YM120D370N100 _Not available taped and reeled_ ## **Amphenol Advanced Sensors** **==> picture [124 x 322] intentionally omitted <==** **----- Start of picture text -----**<br> D (max) T (max)<br>H<br>G Oy)<br>1 i<br>5.08+0.6/-1.0 0.6+0.06/-0.05<br>30 min<br>.<br>YM Drawing<br>D T<br>\ } aan)<br>ty am : it<br>0.55-0.66 25 Min<br>5 ±1<br>**----- End of picture text -----**<br> ## Electrical Specifications ## **Maximum Operating Voltage** 265V rms **Switch Temperature** 120°C nominal ## **Tolerance on R25** ±20% **Ambient Temperature Range** At Storage: -25 to +155°C At Maximum Voltage: 0 to +55°C ## **Lead Wire Material** Tin-coated copper ## **Body Coating** Silicone resin, black YM, green YQS _YQS Drawing_ |**Part Number**|**Replacement**<br>**for**|**R @ 25°C**<br>**Ω**|**Maximum Current**<br>**without Tripping**<br>**(Int)**<br>**mA**<br>**T=25°C**<br>**T=55°C**|**Maximum Current**<br>**without Tripping**<br>**(Int)**<br>**mA**<br>**T=25°C**<br>**T=55°C**|**Minimum Trip**<br>**Current (It) **<br>**mA**<br>**T=25°C**<br>**T=10°C**|**Minimum Trip**<br>**Current (It) **<br>**mA**<br>**T=25°C**<br>**T=10°C**|**Maximum**<br>**Overload**<br>**Current**<br>**(Imo) **<br>**A**|**Maximum**<br>**Residual**<br>**Current (Ires)**<br>**mA**|**D**<br>**(max)**<br>**mm**|**T**<br>**(max)**<br>**mm**|**H**<br>**(max)**<br>**mm**<br>**G**<br>**mm**| |---|---|---|---|---|---|---|---|---|---|---|---| |YM120C15N182||1800|16|14|23|28|0.1|5|4|5|8| |YM120C20N122||1200|20|17|28|34|0.1|6|4|5|8| |YQS8070|YM120C30N601|600|22|18|40|46|0.2|5|4.5|5|8| |YQS8069|YM120C45N301|300|33|26|55|62|0.2|7|4.5|5|9| |YQS8068|YM120C80N101|100|65|50|98|108|0.4|7|5.5|5|12| |YQS8067|YM120D105N600|60|85|65|131|144|0.6|9|6|4.5|12| |YM120D125N450||45|110|85|155|170|0.7|9|7|4.5|2 +0.5,-1| |YQS8066|YM120D150N330|33|128|99|181|198|0.9|12|7.5|4.5|12| |YM120D170N250||25|161|125|228|250|1.1|10|8.5|4.5|2 +0.5,-1| |YQS8065|YM120D200N200|20|168|130|265|298|1.3|10|9.5|4.5|15| |YM120D260N150||15|234|181|330|362|1.7|12|11.5|4.5|2 +0.5,-1| |YM120D370N100||10|314|243|444|486|2.7|16|14.5|4.5|2 +0.5,-1| ## **Amphenol Advanced Sensors** © 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice. Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. **AAS-920-627A-03/2014**
Updated at April 23, 2026
Amphenol Advanced Sensors is a leading innovator in sensor technologies and measurement solutions, serving the highly regulated and demanding needs of the transportation, medical, and industrial markets. Through its renowned legacy brands—including Thermometrics for temperature sensing, NovaSensor for pressure, and Telaire for air quality—the company delivers a diverse portfolio of critical components designed to provide accurate environmental data for real-time decision-making. The core of this manufacturer's offering focuses heavily on highly reliable circuit protection and transducer components. Engineers will find an extensive selection of temperature sensing and compensation NTC thermistors, alongside a comprehensive range of high-performance pressure sensors and transducers. These precision-engineered devices are essential for ensuring thermal stability, accurate fluid measurement, and reliable operational feedback in complex commercial and industrial applications. Beyond these primary lines, the selection includes vital power management devices such as inrush current limiting (ICL) NTC thermistors and PTC thermistors engineered to safeguard sensitive electronics. The portfolio is further complemented by specialized temperature sensors, light sensors, and dataloggers, providing a robust, integrated suite of measurement and protection solutions for modern hardware design.
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