Name: TRF250-145
Brand: Littelfuse Inc.
SKU: TRF250-145
Availability: InStock
Rating: 5 (184 reviews)

TRF250-145

For Reference Only

Part Number	TRF250-145
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH 0.145A HOLD ENCAPSUL
Datasheet	TRF250-145 Datasheet TRF250-145 Specifications
Package	Radial, Disc
ECAD
In Stock	2,460,000 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	May 15 - May 20 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # TRF250-145 (PTC Resettable Fuses) is manufactured by Littelfuse Inc. and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For TRF250-145 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add TRF250-145 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of TRF250-145.

TRF250-145 Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - PTC Resettable Fuses
Package	Radial, Disc
ECAD
Series	PolySwitch?, TRF250
Type	Polymeric
Voltage - Max	60V (250V Int)
Current - Max	3A
Current - Hold (Ih) (Max)	145mA
Current - Trip (It)	290mA
Time to Trip	5s
Resistance - Initial (Ri) (Min)	3 Ohms
Resistance - Post Trip (R1) (Max)	14 Ohms
Resistance - 25°C (Typ)	-
Operating Temperature	-40°C ~ 85°C
Ratings	-
Mounting Type	Through Hole
Package / Case	Radial, Disc
Size / Dimension	0.256" L x 0.181" W (6.50mm x 4.60mm)
Height - Seated (Max)	0.433" (11.00mm)
Thickness (Max)	-
Lead Spacing	0.197" (5.00mm)

TRF250-145 Datasheet

TRF250-145 Reviews

Cheye*****orman

April 3, 2023

★ ★ ★ ★ ★

I've never had a problem with Heisener. Packages arrive on time and in great condition.

Adel*****Pratt

March 26, 2023

★ ★ ★ ★ ★

Super easy search and order process. Lots of Shipping and Payment Options, you can always find the best way for the purchase.

Adrie*****obinson

March 7, 2023

★ ★ ★ ★ ★

Everything perfect. Great seller.

Arth*****asey

February 23, 2023

★ ★ ★ ★ ★

Very supportive of my small orders, but very glad easy to work with. Hard to see how it could be any more efficient!

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

TRF250-145 Packaging

TRF250-145 FAQ

1. How to order TRF250-145 on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that TRF250-145 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the TRF250-145. All suppliers must pass our qualification reviews before they can publish their products including TRF250-145 on Heisener; we pay more attention to the channels and quality of TRF250-145 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the TRF250-145 price and inventory displayed accurate?

The price and inventory of TRF250-145 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of TRF250-145?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TRF250-145 we delivered, we will accept the replacement or return of the TRF250-145 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of TRF250-145.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as TRF250-145 pin diagram, TRF250-145 datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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TRF250-145 Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number	Manufacturer	Description	Stock
TRF250-145-RA-B-0.5 D# V36:1790_14572867	TE Connectivity	PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 1W 4.5Ohm Radial 6.5 X 4.6 X 11mm Bag RoHS: Compliant	0
TRF250-145-B-0.5 D# V36:1790_18209374	Littelfuse Inc	PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 0.8W 5s 3Ohm Radial 6.5 X 4.6 X 7mm Bag RoHS: Compliant	0
TRF250-145-2 D# V36:1790_16252862	Littelfuse Inc	PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 0.8W 5s 3Ohm Radial 6.5 X 4.6 X 7mm T/R RoHS: Compliant	0
TRF250-145U D# V36:1790_11453755	Littelfuse Inc	PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 0.7W 4s 3.5Ohm Radial 6 X 3.8 X 6mm Bag RoHS: Compliant	0
TRF250-145 D# V36:1790_07446409	Littelfuse Inc	PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 0.8W 5s 3Ohm Radial 6.5 X 4.6 X 7mm Bag RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
RS250-145 (CROSS: TRF250-145)	OptiFuse		5000
TRF250-145U-2	TE Connectivity		1500
RS250-145U(CROSS: TRF250-145U)	OptiFuse		5000
TRF250-145	TE Connectivity		4247
TRF250-145US	Littelfuse Inc		1000

Part Number	Manufacturer	Description	Stock
TRF250-145U	TE Connectivity	FUSE 3A 60V RESETTABLE 2PIN - Bag	2000
TRF250-145-2	TE Connectivity	RESETTABLE FUSE, PTC, 60VDC, 145mA, RADIAL, Holding Current:145mA, Tripping Current:290mA, Initial Resistance Max:6ohm, Operating Voltage:60VDC, PTC Fuse Case Style:Radial Leaded, Initial Resistance Min:3ohm, Lead Spacing:5mm , RoHS Compliant: Yes	1071
TRF250-145-B-0.5	TE Connectivity	Lead time 63	2450
TRF250-145T	TE Connectivity	POLYSWITCH PTC RESET 0.145A HOLD	6000
TRF250-145-RA-B-0.5	TE Connectivity	TLINE - Tape and Reel	0
TRF250-145T-B-0.5	TE Connectivity	TRF250-145T-B-0.5 - Bag	0
TRF250-145USTP-B-0.5	TE Connectivity	TLINE - Bag	0
TRF250-145US-B-0.5	TE Connectivity	TLINE - Bag	0
TRF250-145ST-B-0.5	TE Connectivity	TRF250-145ST-B-0.5 - Bag	0
TRF250-145	TE Connectivity	POLYSWITCH 0.145A HOLD UNENCAPS	1590
TRF250-145US	TE Connectivity	RESET,60V MAX,3A,0.145A IHOLD,0.29A ITRIP,RADIAL,BULK,HAZMAT - Bag	0
TRF250-145-RA-B0.5-2	TE Connectivity	TLINE - Tape and Reel	0
TRF250-145-RA-B 0.5-2	TE Connectivity	TLINE - Tape and Reel	0
TRF250-145U-2	TE Connectivity	Lead time 63	3000

Part Number	Manufacturer	Description	Stock
TRF250-145T-2 D# TRF250-145T-2TR-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0
TRF250-145U D# TRF250-145U-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1101
TRF250-145T-B-0.5 D# TRF250-145T-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1980
TRF250-145-RA-B-0.5 D# TRF250-145-RA-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1748
TRF250-145T D# TRF250-145T-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	800
TRF250-145USTP-B-0.5 D# TRF250-145USTP-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1960
TRF250-145US-B-0.5 D# TRF250-145US-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1990
TRF250-145ST-B-0.5 D# TRF250-145ST-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0
TRF250-145 D# TRF250-145-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0
TRF250-145-2 D# TRF250-145-2TR-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0
TRF250-145-B-0.5 D# TRF250-145-B-0.5-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0
TRF250-145US D# TRF250-145US-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	1897
TRF250-145-RA-B0.5-2 D# TRF250-145-RA-B0.5-2CT-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	2833
TRF250-145U-2 D# TRF250-145U-2-ND	Littelfuse Inc	PTC RESET FUSE 60V 145MA RADIAL	0

Part Number

Manufacturer

Description

Stock

TRF250-145

In stock shipping within 2days

21141

Part Number	Manufacturer	Description	Stock
TRF250-145U	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145-2	Littelfuse Inc	RoHS: Compliant pbFree: Yes	1500
TRF250-145T-B-0.5	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145-RA-B-0.5	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145T	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145US-B-0.5	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145	Littelfuse Inc	RoHS: Compliant pbFree: Yes	10342
TRF250-145-B-0.5	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145US	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0
TRF250-145T-2	Littelfuse Inc	RoHS: Compliant pbFree: Yes	0

Part Number

Manufacturer

Description

Stock

TRF250145F2

TE Connectivity

OEM/CM ONLY

12372

TRF250145USTPB05

TE Connectivity

OEM/CM ONLY

2100

Part Number

Manufacturer

Description

Stock

TRF250-145U-2

TE Connectivity

In Stock

1500

TRF250-145

TE Connectivity

In Stock

4247

Part Number	Manufacturer	Description	Stock
TRF250-145 D# 650-TRF250-145	Littelfuse Inc	Resettable Fuses - PPTC .145A 60Vdc MAX 250Vrms MAX RoHS: Compliant	978
TRF250-145T D# 650-TRF250-145T	Littelfuse Inc	Resettable Fuses - PPTC RoHS: Compliant	119
TRF250-145-2 D# 650-TRF250-145-2	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX RoHS: Compliant	6334
TRF250-145U D# 650-TRF250-145U	Littelfuse Inc	Resettable Fuses - PPTC .145A 60VDC MAX 250Vrms MAX RoHS: Compliant	500

Part Number

Manufacturer

Description

Stock

TRF250-145-2

D# XSFP00000198859

Littelfuse Inc

TRF250 Series 60 V 0.145 A Ihold Through Hole Radial PolySwitch Resettable Fuse

3000

TRF250-145

D# XSFP00000198858

Littelfuse Inc

TRF250 Series 60 V 0.145 A Ihold Through Hole Radial PolySwitch Resettable Fuse

6585

Part Number

Manufacturer

Description

Stock

TRF250-145

D# 42M2614

Littelfuse Inc

POLYSWITCH, TELECOM, RADIAL, 0.145A, Thermistor Mounting:Through Hole, Product Range:PolySwitch TRF250 Series, Holding Current:145mA, Tripping Current:290mA, Voltage Rating:60VDC, Operating Temperature Min:-40°C, Operating RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

RF0035-000

D# 34AC4830

Littelfuse Inc

TRF250-145-2 / TR

RoHS: Not Compliant

Min Qty: 1500

Container: TAPE & REEL - FULL

Part Number	Manufacturer	Description	Stock
TRF250-145-2 D# NS-TRF250-145-2	TE Connectivity	OEM/CM ONLY	1549
TRF250-145U-2 D# NS-TRF250-145U-2	TE Connectivity	OEM/CM ONLY	4941
TRF250-145T-B-0.5 D# NS-TRF250-145T-B-0.5	TE Connectivity	OEM/CM ONLY	5442
TRF250-145T D# NS-TRF250-145T	TE Connectivity	OEM/CM ONLY	4711
TRF250-145-RA-B-0.5 D# NS-TRF250-145-RA-B-0.5	TE Connectivity	OEM/CM ONLY	2199
TRF250-145US-B-0.5 D# NS-TRF250-145US-B-0.5	TE Connectivity	OEM/CM ONLY	7774
TRF250-145-B-0.5 D# NS-TRF250-145-B-0.5	TE Connectivity	OEM/CM ONLY	6103

Part Number

Manufacturer

Description

Stock

TRF250-145

TE Connectivity

PTC RESETTABLE FUSE, THROUGH HOLE MOUNT

900

TRF250-145-2

TE Connectivity

PTC RESETTABLE FUSE, THROUGH HOLE MOUNT

2159

Part Number	Manufacturer	Description	Stock
TRF250145USB0.5	TE Connectivity	OEM/CM ONLY	2085
TRF250145RAB0.5	TE Connectivity	OEM/CM ONLY	516
TRF250145U2	TE Connectivity	OEM/CM ONLY	1516
TRF250145S	TE Connectivity	OEM/CM ONLY	1516
TRF250145U	TE Connectivity	OEM/CM ONLY	511
TRF250145TB0.5	TE Connectivity	OEM/CM ONLY	2075
TRF250145B0.5	TE Connectivity	OEM/CM ONLY	4516
TRF250145T	TE Connectivity	OEM/CM ONLY	895
TRF250145	TE Connectivity	OEM/CM ONLY	6889
TRF250145US	TE Connectivity	OEM/CM ONLY	1016
TRF250145USTPB0.5	Littelfuse Inc	OEM/CM ONLY	2055
TRF2501450.125	TE Connectivity	OEM/CM ONLY	791
RF0035000 TRF2501452	LTF	OEM/CM ONLY	4516
TRF2501452	TE Connectivity	OEM/CM ONLY	48016

Part Number	Manufacturer	Description	Stock
RF0044-000	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
RF0027-000	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
TRF250-145T-B-0.5	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
TRF250-145-RA-B-0.5	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
TRF250-145-2	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
RF0045-000	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
TRF250-145U	Littelfuse Inc	Resettable Fuses - PPTC .145A 60VDC MAX 250Vrms MAX pbFree: Pb-Free	0
TRF250-145	Littelfuse Inc	Resettable Fuses - PPTC .145A 60Vdc MAX 250Vrms MAX pbFree: Pb-Free	0
RF0035-000	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A MAX pbFree: Pb-Free	0
RF0021-000	Littelfuse Inc	Resettable Fuses - PPTC 250V .145A-HD 3A pbFree: Pb-Free	0

Part Number

Manufacturer

Description

Stock

TRF250-145T

N/A

shipping today

490

Part Number

Manufacturer

Description

Stock

TRF250-145

D# 52134045

Littelfuse Inc

PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 0.8W 5s 3Ohm Radial 6.5 X 4.6 X 7mm Bag

RoHS: Compliant

TRF250-145-2

D# 39810623

Littelfuse Inc

PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60VDC 3A 0.8W 5s 3Ohm Radial 6.5 X 4.6 X 7mm T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

TRF250-145

mfr

RFQ

917

TRF250-145-2

TE Connectivity

RFQ

5543

Part Number

Manufacturer

Description

Stock

TRF250-145U

D# 1895854

TE Connectivity

FUSE, PTC RESET, 60V, 145mA, RADIAL

RoHS: Compliant

Min Qty: 1

Container: Each

TRF250-145-2

D# 2078411

TE Connectivity

RESETTABLE FUSE, PTC, 60VDC, 145mA, RADI

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Quick Inquiry

TRF250-145

Certified Quality

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