PTC Resettable Fuses

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Type	Voltage - Max	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	Grade	Qualification	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
YQS8121 PTC RESET FUSE 265V 35MA RADIAL Amphenol Advanced Sensors (Thermometrics)	3,965	-	RFQ	Datasheet	Radial, Disc	YP	Strip	Active	Ceramic	265V	35 mA	80 mA	400 mA	-	-	-	120 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	0.472" (12.00mm)	-	0.236" (6.00mm)
YQS6000 PTC RESET FUSE 120V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	536	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Active	Ceramic	120V	-	-	-	-	-	-	10 Ohms	-	-	-	-	Through Hole	0.865" Dia x 0.300" T (21.97mm x 7.62mm)	0.990" (25.15mm)	-	0.328" (8.33mm)
YQS5876PTF PTC RESET FUSE 240V 100MA RADIAL Amphenol Advanced Sensors (Thermometrics)	912	-	RFQ	Datasheet	Radial, Disc	PTF	Bulk	Active	Ceramic	240V	100 mA	210 mA	-	-	-	-	50 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.650" Dia x 0.272" T (16.50mm x 6.90mm)	0.650" (16.50mm)	-	0.331" (8.40mm)
YQD120N0006 PTC RESET FUSE 265V 390MA RADIAL Amphenol Advanced Sensors (Thermometrics)	1,271	-	RFQ	Datasheet	Radial, Disc	YQ	Bulk	Active	Ceramic	265V	390 mA	780 mA	3.1 A	-	-	-	6 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.689" Dia x 0.197" T (17.50mm x 5.00mm)	-	-	0.201" (5.10mm)
YQS5898PTO PTC RESET FUSE 12V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	1,392	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Active	Ceramic	12V	-	-	-	-	-	-	25 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.350" (8.89mm)	-	0.197" (5.00mm)
YQS5745PTO PTC RESET FUSE 25V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	9,270	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Active	Ceramic	25V	-	-	-	-	-	-	50 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.394" (10.00mm)	-	0.197" (5.00mm)
YS5921PTO PTC RESET FUSE 120V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	9,009	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Active	Ceramic	120V	-	-	-	-	-	-	200 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.300" Dia x 0.200" T (7.62mm x 5.08mm)	0.300" (7.62mm)	-	0.150" (3.81mm)
YQS5853PTF PTC RESET FUSE 50V 170MA RADIAL Amphenol Advanced Sensors (Thermometrics)	4,401	-	RFQ	Datasheet	Radial, Disc	PTF	Bulk	Active	Ceramic	50V	170 mA	400 mA	-	-	-	-	10 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.449" Dia x 0.169" T (11.40mm x 4.30mm)	0.512" (13.00mm)	-	0.197" (5.00mm)
YS5918PTO PTC RESET FUSE 120V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	9,175	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Active	Ceramic	120V	-	-	-	-	-	-	25 Ohms	10°C ~ 55°C	-	-	-	Through Hole	0.600" Dia x 0.220" T (15.24mm x 5.59mm)	0.600" (15.24mm)	-	0.330" (8.38mm)
YM120C15N182 PTC RESET FUSE 265V 16MA RADIAL Amphenol Advanced Sensors (Thermometrics)	3,002	-	RFQ	Datasheet	Radial, Disc	YM	Bulk	Active	Ceramic	265V	16 mA	23 mA	100 mA	-	-	-	1.8 kOhms	0°C ~ 55°C	-	-	-	Through Hole	0.157" Dia x 0.177" T (4.00mm x 4.50mm)	0.256" (6.50mm)	-	0.200" (5.08mm)

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FREQUENTLY ASKED QUESTIONS

PTC Resettable Fuses FAQ

Common questions about filtering, comparing and sourcing PTC Resettable Fuses components.

How can I narrow the PTC Resettable Fuses selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific PTC Resettable Fuses part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.