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Product Detailed Parameters
- Description：PTC RESET FUSE 25V RADIAL DISC
- Series：PTO
- Mfr：Amphenol Advanced Sensors (Thermometrics)
- Package：Bulk
- Type：Ceramic
- Voltage - Max：25V
- 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)：50 Ohms
- Operating Temperature：10°C ~ 55°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.350" Dia x 0.150" T (8.90mm x 3.80mm)
- Height - Seated (Max)：0.472" (12.00mm)
- Thickness (Max)：-
- Lead Spacing：0.197" (5.00mm)
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Overview
The YQS5749PTO is a PTC thermistor manufactured by Amphenol Advanced Sensors. It features a resistance of 50 Ohms and a DC voltage rating of 25 VDC. The component supports PCB mount installation with radial termination. Its physical dimensions include a diameter of 8.89 mm and a width of 3.81 mm. The operating temperature range extends from +10°C to +55°C.
Feature Summary
- Positive temperature coefficient thermistor design
- Radial lead configuration for printed circuit board mounting
Applications
- Overcurrent protection circuits
- Self-regulating heating elements
- Motor start assistance
Procurement Notes
Verify the exact part number suffix, as distributor listings may reference YS5749PTO or YQS5749PTO. Confirm availability status directly with the manufacturer or authorized distributors, as supply constraints have been noted in public records. Ensure the specific thermal characteristics match the application requirements before finalizing procurement orders.
Selection Notes
Select this component when a low-resistance PTC device is required for PCB integration. The radial termination style facilitates standard through-hole assembly processes. Consider the limited operating temperature range of +10°C to +55°C to ensure compatibility with the intended environmental conditions and thermal management strategies.
Part Context
This part belongs to the PTC Thermistors subcategory within the broader Thermistors product line offered by Amphenol Advanced Sensors. It represents a specific variant designed for applications requiring positive temperature coefficient behavior with defined electrical parameters and mechanical form factors suitable for electronic assemblies.
FAQ
What is the DC voltage rating for the YQS5749PTO?
The maximum DC voltage rating is 25 VDC.
Does the YQS5749PTO support axial mounting?
No, the component utilizes radial termination for PCB mount installation.
