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Product Detailed Parameters
- Description：PTC RESET FUSE 30V 600MA RADIAL
- Series：YP
- Mfr：Amphenol Advanced Sensors (Thermometrics)
- Package：Bulk
- Type：Ceramic
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：600 mA
- Current - Trip (It)：1.2 A
- Current - Max：4.3 A
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：1.2 Ohms
- Operating Temperature：0°C ~ 60°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.433" Dia x 0.138" T (11.00mm x 3.50mm)
- Height - Seated (Max)：0.571" (14.50mm)
- Thickness (Max)：-
- Lead Spacing：0.236" (6.00mm)
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Overview
The YQS8122 is a PTC thermistor resettable fuse manufactured by Amphenol Advanced Sensors under the Thermometrics brand. It operates with a DC voltage rating of 30 VDC and features a current rating of 600 mA. The component utilizes a radial lead configuration with a specified lead spacing of 5 mm. Designed for overcurrent protection, it functions as a self-resetting device within electronic circuits.
Feature Summary
- Provides automatic circuit recovery after fault conditions without manual replacement
- Utilizes positive temperature coefficient characteristics to limit current flow during overheating
- Features a compact radial leaded package suitable for through-hole mounting
Applications
- Overcurrent protection in consumer electronics
- Battery pack protection systems
- Power supply input protection circuits
Procurement Notes
Verify the specific electrical ratings against the official datasheet before integration. Confirm that the 30 VDC and 600 mA specifications align with the target circuit requirements. Ensure the radial lead spacing matches the PCB layout design. Cross-reference the manufacturer part number to avoid confusion with similar series components.
Selection Notes
Select this component when a self-resetting overcurrent protection solution is required for low-voltage applications. Consider the hold current and trip current characteristics relative to the normal operating current of the protected circuit. Evaluate the physical size constraints imposed by the radial leaded form factor and ensure adequate clearance for heat dissipation during operation.
Part Context
This component belongs to the Thermometrics line of PTC thermistors produced by Amphenol Advanced Sensors. The product family focuses on resettable fuses designed for reliable overcurrent protection in various electronic assemblies. These devices are engineered to provide robust safety features while maintaining ease of integration into standard manufacturing processes.
Replacement Considerations
Consult official substitution lists for compatible parts. Verify that any alternative component matches the 30 VDC voltage rating and 600 mA current handling capability. Ensure the lead spacing and package type are compatible with existing board layouts. Do not assume functional equivalence based solely on category classification.
