Littelfuse Inc. TR250-145U
- Part No.:
- TR250-145U
- Manufacturer:
- Littelfuse Inc.
- Category:
- PTC Resettable Fuses
- Package:
- Radial, Disc
- Description:
- PTC RESET FUSE 250V 145MA RADIAL
- Quantity:
- Payment:

- Shipping:

Inventory:7,367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
TR250-145U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Littelfuse Inc.
- Package/Case:
- Radial, Disc
- Series:
- PolySwitch®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Polymeric
- Voltage - Max:
- 250V (60V Int)
- Current - Hold (Ih) (Max):
- 145 mA
- Current - Trip (It):
- -
- Current - Max:
- 3 A
- Time to Trip:
- 2 s
- Resistance - Initial (Ri) (Min):
- 3.5 Ohms
- Resistance - Post Trip (R1) (Max):
- 12 Ohms
- Resistance - 25°C (Typ):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Ratings:
- -
- Mounting Type:
- Through Hole
- Size / Dimension:
- 0.236" L x 0.150" W (6.00mm x 3.80mm)
- Height - Seated (Max):
- 0.394" (10.00mm)
- Thickness (Max):
- -
- Lead Spacing:
- 0.197" (5.00mm)
TR250-145U FAQ
1.How can I place an order for TR250-145U through Aetrix?
Please submit a Request for Quotation (RFQ) for TR250-145U on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TR250-145U reliable?
The price and inventory of TR250-145U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TR250-145U is usually 5 days.
3.What payment methods are accepted for TR250-145U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TR250-145U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TR250-145U?
TR250-145U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TR250-145U order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TR250-145U?
For technical support, including TR250-145U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TR250-145U requirements.
6.How does Aetrix verify that TR250-145U is sourced from the original manufacturer or authorized distributors?
All TR250-145U products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TR250-145U meets industry standards.
7.What is the process for return or replacement of TR250-145U?
All TR250-145U units undergo pre-shipment inspection (PSI). If there is an issue with TR250-145U, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TR250-145U part is unused and in its original packaging.
Return procedure for TR250-145U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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