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HomeProductsCircuit ProtectionPTC Resettable FusesTRF250-145T
Littelfuse Inc.
Image may be representation.
See specifications for product details.

TRF250-145T - Littelfuse Inc.

Manufacturer Part Number
TRF250-145T
Manufacturer
Littelfuse
Allelco Part Number
32D-TRF250-145T
ECAD Model
Parts Description
PTC RESET FUSE 60V 145MA RADIAL
Detailed Description
Package
Radial, Disc
Data sheet
Telecom/Networking Devices Catalog.pdf
TRF250-145T Spec.pdf
RoHs Status
ROHS3 Compliant
In stock: 88010

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Quantity

Specifications

TRF250-145T Tech Specifications
Littelfuse Inc. - TRF250-145T technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - TRF250-145T

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 60V (250V Int)  
Type Polymeric  
Time to Trip 2.5 s  
Thickness (Max) -  
Size / Dimension 0.256" L x 0.181" W (6.50mm x 4.60mm)  
Series PolySwitch®, TRF250  
Resistance - Post Trip (R1) (Max) 14 Ohms  
Resistance - Initial (Ri) (Min) 5.4 Ohms  
Ratings -  
Product Attribute Attribute Value  
Package / Case Radial, Disc  
Package Bag  
Operating Temperature -40°C ~ 85°C  
Mounting Type Through Hole  
Lead Spacing 0.197" (5.00mm)  
Height - Seated (Max) 0.433" (11.00mm)  
Current - Trip (It) 290 mA  
Current - Max 3 A  
Current - Hold (Ih) (Max) 145 mA  
Approval Agency CSA, TUV, UL  

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. TRF250-145T

Product Attribute TRF250-145T TRF250-184 TRF250-183 TRF250-120T
Part Number TRF250-145T TRF250-184 TRF250-183 TRF250-120T
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Resistance - Post Trip (R1) (Max) 14 Ohms 3.1 Ohms 3.4 Ohms 16 Ohms
Approval Agency CSA, TUV, UL CSA, TUV, UL CSA, TUV, UL CSA, TUV, UL
Resistance - Initial (Ri) (Min) 5.4 Ohms 1.2 Ohms 800 mOhms 7 Ohms
Operating Temperature -40°C ~ 85°C 0°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Current - Trip (It) 290 mA 1 A 685 mA 240 mA
Lead Spacing 0.197" (5.00mm) 0.197' (5.00mm) 0.197' (5.00mm) 0.197' (5.00mm)
Time to Trip 2.5 s 1.3 s 1.8 s 1.2 s
Package / Case Radial, Disc Radial, Disc Radial, Disc Radial, Disc
Type Polymeric Polymeric Polymeric Polymeric
Current - Hold (Ih) (Max) 145 mA 184 mA 183 mA 120 mA
Ratings - - - -
Thickness (Max) - - - -
Voltage - Max 60V (250V Int) 100V (250V Int) 100V (250V Int) 60V (250V Int)
Current - Max 3 A 10 A 10 A 3 A
Series PolySwitch®, TRF250 PolySwitch®, TRF250 PolySwitch®, TRF250 PolySwitch®, TRF250
Height - Seated (Max) 0.433" (11.00mm) 0.413' (10.50mm) 0.413' (10.50mm) 0.433' (11.00mm)
Size / Dimension 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.303' Dia x 0.181' T (7.70mm x 4.60mm) 0.295' Dia x 0.161' T (7.50mm x 4.10mm) 0.256' L x 0.181' W (6.50mm x 4.60mm)
Package Bag Bag Bulk Bag
Mounting Type Through Hole Through Hole Through Hole Through Hole

TRF250-145T Datasheet PDF

Download TRF250-145T pdf datasheets and Littelfuse Inc. documentation for TRF250-145T - Littelfuse Inc..

Datasheets
Telecom/Networking Devices Catalog.pdf TRF250-145T Spec.pdf
PCN Packaging
Mult Dev Shipping Chgs 9/Jun/2020.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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Littelfuse Inc.

TRF250-145T

Littelfuse Inc.
32D-TRF250-145T

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