RKEF250
For Reference Only
| Part Number | RKEF250 |
| PNEDA Part # | RKEF250 |
| Description | PTC RESET FUSE 60V 2.5A RADIAL |
| Manufacturer | Littelfuse |
| Unit Price | Request a Quote |
| In Stock | 54,096 |
| Warehouses | Shipped from Hong Kong SAR |
| Estimated Delivery | Jun 27 - Jul 2 (Choose Expedited Shipping) |
| Guarantee | Up to 1 year [PNEDA-Warranty]* |
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Free shipping on orders over $100. PNEDA is willing to provide you with better services.
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RKEF250 Resources
| Brand | Littelfuse |
| ECAD Module |
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| Mfr. Part Number | RKEF250 |
| Category | Power › Circuit Protection › PTC Resettable Fuses |
| Datasheet |
Payment Method
- Penda is not limited to cash transfers. Checks and bill transfers are also accepted.
- If you need the detailed invoice or tax ID,please email us.
- Some orders may require a minimum amount of $100.00.
- Cheque or cash on delivery, processing may take an additional 3-5 days.
Logistics Mode
- Delivery time: At the same day (Order deadline is 2pm, HK Time).
- Delivery date: usually 2 to 7 working days.
- It is unable to appoint a date of delivery.
- Tracking number will be sent once your order has been shipped.
- It may take up to 24 hours before carriers display the info.
Notes
- Please confirm the specifications of the products when ordering.
- If you have special order instructions,please note it on the ordering pages.
- Registered users can log in to the account to view the order status.
- You can email us to change the order details before shipment.
- Orders cannot be canceled after shipping the packages.
At PNEDA, we strive to be the industry leader by quickly and reliably supplying high-quality electronic components to our clients.
Our approach is built around proving our clients with three key advantages:
Prompt Responsiveness
Our team responds quickly to your requests, and gets to work immediately to find your parts.
Guaranteed Quality
Our quality-control processes guard against counterfeits while ensuring reliability and performance.
Global Access
Our worldwide network of trusted resources allows us to find and deliver the specific parts you need.
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RKEF250 Specifications
| Manufacturer | Littelfuse Inc. |
| Series | PolySwitch®, RKEF |
| Type | Polymeric |
| Voltage - Max | 60V |
| Current - Max | 40A |
| Current - Hold (Ih) (Max) | 2.5A |
| Current - Trip (It) | 5A |
| Time to Trip | 15.6s |
| Resistance - Initial (Ri) (Min) | 40 mOhms |
| Resistance - Post Trip (R1) (Max) | 140 mOhms |
| Resistance - 25°C (Typ) | - |
| Operating Temperature | -40°C ~ 85°C |
| Ratings | - |
| Mounting Type | Through Hole |
| Package / Case | Radial, Disc |
| Size / Dimension | 0.512" L x 0.150" W (13.00mm x 3.81mm) |
| Height - Seated (Max) | 0.740" (18.80mm) |
| Thickness (Max) | - |
| Lead Spacing | 0.200" (5.08mm) |
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Manufacturer Littelfuse Inc. Series PolySwitch®, RGEF Type Polymeric Voltage - Max 16V Current - Max 100A Current - Hold (Ih) (Max) 12A Current - Trip (It) 20.4A Time to Trip 7.5s Resistance - Initial (Ri) (Min) 3.3 mOhms Resistance - Post Trip (R1) (Max) 8.6 mOhms Resistance - 25°C (Typ) - Operating Temperature -40°C ~ 85°C Ratings - Mounting Type Through Hole Package / Case Radial, Disc Size / Dimension 0.670" L x 0.115" W (16.95mm x 2.90mm) Height - Seated (Max) 1.102" (28.00mm) Thickness (Max) - Lead Spacing 0.400" (10.15mm) |
Manufacturer EPCOS (TDK) Series - Type Ceramic Voltage - Max 265V Current - Max 4.1A Current - Hold (Ih) (Max) 330mA Current - Trip (It) 660mA Time to Trip - Resistance - Initial (Ri) (Min) - Resistance - Post Trip (R1) (Max) - Resistance - 25°C (Typ) 6 Ohms Operating Temperature 0°C ~ 60°C Ratings - Mounting Type Through Hole Package / Case Radial, Disc Size / Dimension 0.689" Dia x 0.197" T (17.50mm x 5.00mm) Height - Seated (Max) 0.827" (21.00mm) Thickness (Max) - Lead Spacing 0.197" (5.00mm) |
Manufacturer Bourns Inc. Series CMF-SDP Type Ceramic Voltage - Max 230V (250V Int) Current - Max 1A Current - Hold (Ih) (Max) 180mA Current - Trip (It) 360mA Time to Trip 3.8s Resistance - Initial (Ri) (Min) - Resistance - Post Trip (R1) (Max) - Resistance - 25°C (Typ) 10 Ohms Operating Temperature -40°C ~ 125°C Ratings - Mounting Type Surface Mount Package / Case 4-SMD Cube Size / Dimension 0.433" L x 0.354" W (11.00mm x 9.00mm) Height - Seated (Max) - Thickness (Max) 0.453" (11.50mm) Lead Spacing - |
Manufacturer Littelfuse Inc. Series POLY-FUSE®, 72R Type Polymeric Voltage - Max 72V Current - Max 40A Current - Hold (Ih) (Max) 400mA Current - Trip (It) 800mA Time to Trip 3.8s Resistance - Initial (Ri) (Min) 550 mOhms Resistance - Post Trip (R1) (Max) 1.29 Ohms Resistance - 25°C (Typ) - Operating Temperature -40°C ~ 85°C Ratings - Mounting Type Through Hole Package / Case Radial, Disc Size / Dimension 0.299" Dia x 0.122" T (7.60mm x 3.10mm) Height - Seated (Max) 0.532" (13.50mm) Thickness (Max) - Lead Spacing 0.201" (5.10mm) |
