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Product Detailed Parameters
- Description：PTC RESET FUSE 30V 280MA RADIAL
- Series：YQ
- Mfr：Amphenol Advanced Sensors (Thermometrics)
- Package：Bulk
- Type：Ceramic
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：280 mA
- Current - Trip (It)：560 mA
- Current - Max：3:00 AM
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：4.2 Ohms
- 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：0.201" (5.10mm)
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Overview
The YQA120N4.2 is a PTC resettable fuse manufactured by Amphenol Advanced Sensors under the Thermometrics brand. It features radial termination and PCB mounting style. The component has a nominal resistance of 4.2 Ohms at standard conditions, with a maximum current rating of 280 mA. It operates within a voltage range up to 30 V and withstands a maximum operating temperature of +60 C. The device provides overcurrent protection through positive temperature coefficient characteristics.
Feature Summary
- Provides automatic circuit protection via resettable PTC mechanism
- Utilizes radial lead configuration for printed circuit board integration
- Ensures reliable performance in low-voltage applications
Applications
- Overcurrent protection in electronic circuits
- Battery pack safeguarding systems
- Consumer electronics power input lines
Procurement Notes
Verify that the specific part number YQA120N4.2 matches the required 4.2 Ohm resistance and 280 mA current rating for your design. Confirm RoHS compliance status as indicated in official documentation. Ensure the 30 V voltage rating and +60 C temperature limit are suitable for the intended operational environment before procurement.
Selection Notes
Select this component when a resettable fuse with radial leads is required for PCB mounting. Consider the 4.2 Ohm initial resistance and 280 mA hold current to ensure compatibility with the circuit's normal operating parameters. Verify that the maximum operating temperature of +60 C meets the thermal requirements of the application environment.
Part Context
This component belongs to the YQ series of PTC thermistors from Amphenol Advanced Sensors. The series offers various resistance values and current ratings for different protection needs. The YQA120N4.2 specifically addresses applications requiring precise low-resistance overcurrent protection with radial termination capabilities.
Replacement Considerations
Check datasheets for alternative PTC fuses with matching 4.2 Ohm resistance, 280 mA current rating, and 30 V voltage rating. Ensure replacement parts maintain radial termination and similar thermal characteristics.
