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
RL4006-10-110-50-PTF PTC RESET FUSE 50V 230MA RADIAL Amphenol Advanced Sensors (Thermometrics)	2,024	-	RFQ	Datasheet	Radial, Disc	PTF	Bulk	Obsolete	Ceramic	50V	230 mA	340 mA	-	-	-	-	10 Ohms	-	-	-	-	Through Hole	0.449" Dia x 0.169" T (11.40mm x 4.30mm)	0.449" (11.40mm)	-	0.252" (6.40mm)
RL5305-2.5-110-12-PTF PTC RESET FUSE 12V 550MA RADIAL Amphenol Advanced Sensors (Thermometrics)	5,792	-	RFQ	Datasheet	Radial, Disc	PTF	Bulk	Obsolete	Ceramic	12V	550 mA	820 mA	-	-	-	-	2.5 Ohms	-	-	-	-	Through Hole	0.600" Dia x 0.160" T (15.24mm x 4.06mm)	0.600" (15.24mm)	-	0.330" (8.38mm)
YQD120N0070 PTC RESET FUSE 265V 65MA RADIAL Amphenol Advanced Sensors (Thermometrics)	4,890	-	RFQ	Datasheet	Radial, Disc	YQ	Bulk	Active	Ceramic	265V	65 mA	130 mA	300 mA	-	-	-	70 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.256" Dia x 0.197" T (6.50mm x 5.00mm)	-	-	0.201" (5.10mm)
YQS8122 PTC RESET FUSE 30V 600MA RADIAL Amphenol Advanced Sensors (Thermometrics)	5,073	-	RFQ	Datasheet	Radial, Disc	YP	Bulk	Active	Ceramic	30V	600 mA	1.2 A	4.3 A	-	-	-	1.2 Ohms	0°C ~ 60°C	-	-	-	Through Hole	0.433" Dia x 0.138" T (11.00mm x 3.50mm)	0.571" (14.50mm)	-	0.236" (6.00mm)
RL3312-200-110-50-PTO PTC RESET FUSE 50V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	8,693	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Obsolete	Ceramic	50V	-	-	-	45 s	-	-	200 Ohms	-	-	-	-	Through Hole	0.400" Dia x 0.230" T (10.16mm x 5.84mm)	0.400" (10.16mm)	-	0.250" (6.35mm)
RL3020-5K-100-480-PTO PTC RESET FUSE 480V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	2,250	-	RFQ	Datasheet	Radial, Disc	PTO	Bulk	Obsolete	Ceramic	480V	-	-	-	60 s	-	-	5 kOhms	-	-	-	-	Through Hole	0.350" Dia x 0.310" T (8.89mm x 7.87mm)	0.350" (8.89mm)	-	0.250" (6.35mm)
YQS5679 PTC RESET FUSE Amphenol Advanced Sensors (Thermometrics)	4,287	-	RFQ	Datasheet	-	YQ	Bulk	Active	Ceramic	-	-	-	-	-	-	-	50 Ohms	-	-	-	-	-	-	-	-	-
RL3006-50-60-25-PT4 PTC RESET FUSE 25V RADIAL DISC Amphenol Advanced Sensors (Thermometrics)	6,630	-	RFQ	Datasheet	Radial, Disc	-	Bulk	Obsolete	-	25V	-	-	-	-	-	-	-	-	-	-	-	Through Hole	0.350" Dia x 0.150" T (8.90mm x 3.80mm)	0.350" (8.89mm)	-	0.250" (6.35mm)
YQB120N9.40 PTC RESET FUSE 80V 180MA RADIAL Amphenol Advanced Sensors (Thermometrics)	7,134	-	RFQ	Datasheet	Radial, Disc	YQ	Bulk	Active	Ceramic	80V	180 mA	360 mA	3 A	-	-	-	9.4 Ohms	0°C ~ 60°C	-	-	-	Through Hole	-	-	-	0.201" (5.10mm)
YM120C80N101 PTC RESET FUSE 265V 65MA RADIAL Amphenol Advanced Sensors (Thermometrics)	9,852	-	RFQ	Datasheet	Radial, Disc	YM	Bulk	Obsolete	Ceramic	265V	65 mA	98 mA	400 mA	-	-	-	100 Ohms	0°C ~ 55°C	-	-	-	Through Hole	0.177" Dia x 0.177" T (4.50mm 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.