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What Is a PTC Thermistor?
Learn why PTC resistance rises with temperature, how it differs from NTC, and which ratings matter for sensing and protection.
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YQD120N0050 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Amphenol Advanced Sensors (Thermometrics). Its product description is PTC RESET FUSE 265V RADIAL DISC. Review the specifications below when checking this part for your BOM.
Ptc Resettable Fuses specifications for YQD120N0050
- Description：PTC RESET FUSE 265V RADIAL DISC
- Series：YQ
- Mfr：Amphenol Advanced Sensors (Thermometrics)
- Package：Bulk
- Type：Ceramic
- Voltage - Max：265V
- Current - Hold (Ih) (Max)：-
- Current - Trip (It)：-
- Current - Max：-
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：-
- Operating Temperature：0°C ~ 60°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：-
- Height - Seated (Max)：-
- Thickness (Max)：-
- Lead Spacing：-
Ptc Resettable Fuses datasheet and documents for YQD120N0050
Ptc Resettable Fuses Overview
The YQD120N0050 is a PTC thermistor manufactured by Amphenol Advanced Sensors under the Thermometrics brand. It features a nominal resistance of 50 Ohms with a tolerance of 30%. The component utilizes a radial lead configuration and has a disc diameter of 9mm. It is designed for PCB mounting in bulk packaging. The device operates within a temperature range from 0°C to +60°C.
Ptc Resettable Fuses Feature Summary
- Positive Temperature Coefficient (PTC) thermistor functionality
- Radial leaded construction for through-hole mounting
- Disc form factor with specified diameter
- Self-resetting fuse capability
Ptc Resettable Fuses Applications
- Overcurrent protection circuits
- Temperature sensing applications
- Industrial control systems
- Consumer electronics protection
Ptc Resettable Fuses Procurement Notes
Verify the specific datasheet version for precise electrical characteristics and thermal curves. Confirm that the 30% tolerance aligns with circuit requirements. Ensure the operating temperature range of 0°C to +60°C meets environmental conditions. Check for any specific handling instructions regarding the radial leads and bulk packaging format.
Ptc Resettable Fuses Selection Notes
Select this component when a 50 Ohm PTC response is required. Consider the 30% tolerance for design margins. Evaluate the 9mm disc size against available board space. Verify compatibility with radial mounting techniques. Compare performance against other YQD series variants if different resistance or tolerance values are needed.
Ptc Resettable Fuses Part Context
This part belongs to the YQD series of PTC thermistors from Amphenol Advanced Sensors. It shares the radial leaded disc form factor common to this family. Other models in the series offer different resistance values and tolerances while maintaining similar physical dimensions and mounting styles.
Ptc Resettable Fuses Replacement Considerations
Direct substitutes include other YQD series parts with matching 50 Ohm resistance and 30% tolerance. Verify physical dimensions and lead spacing for mechanical compatibility. Cross-reference electrical specifications with equivalent PTC devices from other manufacturers if sourcing constraints exist.
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