Manage Cookie Settings

To make the TTI.com experience more targeted and user-friendly, TTI.com (and selected third parties) use “cookies” on this website. This technology helps us gather statistical and analytical information for personalization purposes, but the choice to accept the cookies is always yours.

Necessary Cookies

Always ON

These cookies are necessary for our website to function and cannot be deactivated. As a rule, these cookies enable our website’s proper functioning and support critical features that you have requested such as the maintaining of your shopping cart and maintaining your session when you have logged in as a customer. Your browser can be set to block cookies or inform you of their use. Blocking these technical cookies will result in the website not functioning as intended.

Performance Cookies

These cookies allow us to understand how the website is being used and how it is performing so that we can make improvements to your experience. By allowing these cookies you help us understand which pages are most important, and which are less so and where work may need to be done to improve the speed or content of our pages. These cookies may be set by us, or they may be set by providers whose tools we use to help in our analysis.

Personalization Cookies

These cookies are used to make our website easier to use and more enjoyable. They allow us to display content tailored to the website pages you visit or products purchased, and allow us to provide you with conveniently related content based on your searches.

Marketing Cookies

These cookies enable us and other perspective vendors to show you advertisements of products and services that would be of interest to you. If you do not agree to the use of these cookies, you can still be shown relevant TTI advertising while on our websites.

Part of the TTI Family of Specialists

About TTI Contact Us

BOM Upload

Hello {{accountJson.data.firstName}}

{{accountJson.data.ttiPlusRewardsLevel}} My Account Account Account {{selectedAccount.accountNumber}} {{selectedAccount.accountNumber}}

Rewards: {{rewardCredit | currency}}
Your Services
ezBuy
ezBuy
ezBuy ezBuy
ezReview
ezReview ezReview
ezBill
Quote Request
Project List
Control Tower

Your Accounts
Empty your cart to change accounts
My TTI Profile Update Profile
Sign out

Order Status

{{cartInfo.cartPartsCount}} 0

Hello {{accountJson.data.firstName}}

Hello, Sign in

Products
Technical Resources
Manufacturers
Services & Tools
About TTI
Contact Us

Order Status

My Support

Internet Sales / Support
(877) 645-4884
Email Internet Sales

Your Local Branch
(800) 225-5884

{{accountJson.data.customer[0].supportTeam.isr.firstName}} {{accountJson.data.customer[0].supportTeam.isr.lastName}}
{{accountJson.data.customer[0].supportTeam.isr.title}}
{{accountJson.data.customer[0].supportTeam.isr.phone}}
Email Rep

{{accountJson.data.customer[0].supportTeam.osr.firstName}} {{accountJson.data.customer[0].supportTeam.osr.lastName}}
{{accountJson.data.customer[0].supportTeam.osr.title}}
{{accountJson.data.customer[0].supportTeam.osr.phone}}
Email Rep

Email Both Reps

{{selectedAccount.supportTeam.isr.firstName}} {{selectedAccount.supportTeam.isr.lastName}}
{{selectedAccount.supportTeam.isr.title}}
{{selectedAccount.supportTeam.isr.phone}}
Email Rep

{{selectedAccount.supportTeam.osr.firstName}} {{selectedAccount.supportTeam.osr.lastName}}
{{selectedAccount.supportTeam.osr.title}}
{{selectedAccount.supportTeam.osr.phone}}
Email Rep

Email Both Reps

Help Center

Online Tools & Services

Sorry! You do not have access to this Online Service on account: {{appAccount.accountNumber}}

No Accounts Found

Please choose from the following accounts that have access.

No Accounts Have Access.

Please Click Here to find out more about ezReview.

Sorry! You do not have access to this Online Service on account: {{selectedAccount.accountNumber}}

No Accounts Found

The {{serviceName}} Application is Currently Unavailable.

Please choose from the following accounts that have access.

No Accounts Have Access. Please Click Here to find out more about ezBuy.

Your {{serviceName}} service cannot be accessed at this time because your shopping cart is "locked" to a TTI Account that is not in your {{serviceName}} profile. This probably happened because your cart contains one or more parts with discounted prices.

To regain access to ezBuy, please clear your cart by submitting an order or by removing those parts with discounted prices.

If you have any other questions please call your TTI Sales Representative.

Shopping Cart is locked to:
{{selectedAccount.accountNumber}}
{{selectedAccount.billingAddress.name}}
{{selectedAccount.billingAddress.streetAddress}}
{{selectedAccount.billingAddress.city}}, {{selectedAccount.billingAddress.state.stateShortName}} {{selectedAccount.billingAddress.zip}}
{{selectedAccount.billingAddress.country.countryShortName}}

My Support Team

{{supportModalInfo.firstName}} {{supportModalInfo.lastName}}
{{supportModalInfo.title}}
{{supportModalInfo.branch}}
{{supportModalInfo.phone}}
{{supportModalInfo.email}}

{{supportModalInfoTwo.firstName}} {{supportModalInfoTwo.lastName}}
{{supportModalInfoTwo.title}}
{{supportModalInfoTwo.branch}}
{{supportModalInfoTwo.phone}}
{{supportModalInfoTwo.email}}

Email: {{supportModalInfo.email}}

Send Quick Message

Subject:

Message:

Email Sent Successfully!

Failed to Send Email!

Send

Description	Product Attribute	Similar
Manufacturer	Vishay
Product Category	Wirewound Resistors - Chassis Mount
Series	FSOTXX Flat
Resistance	25 Ohms
Power Rating	55 W
Tolerance	10 %
Temperature Coefficient	30 PPM / C
Minimum Operating Temperature	- 50 C
Maximum Operating Temperature	+ 150 C
Termination Style	Screw
Height	14.3 mm
Length	89 mm
Width	30 mm
Packaging	Bulk
Resistance	25 Ohms
Power Rating	55 W
Tolerance	10 %
Termination Style	Screw
Temperature Coefficient	30 PPM / C
Length	89 mm
Width	30 mm
Height	14.3 mm
Minimum Operating Temperature	- 50 C
Maximum Operating Temperature	+ 150 C
Series	FSOTXX Flat
Packaging	Bulk
Features	Coated Resistors, Silicone Coated
Mounting Style	Chassis Mount
Product Type	Wirewound Resistors
Subcategory	Resistors
Technology	Wirewound

Attribute	Description
Country of Origin	Mexico
ECCN	EAR99
HTS	8533290000
TARIC	8533290000
RoHS Compliant	Yes RoHS Compliant
RoHS Exemption Number	N/A
Lead(PB) in Terminals	No Lead Free
REACH SVHC	No
REACH Substance Name	N/A

Mfr	FSOT5509E25R00KE
TTI	FSOT5509E25R00KE
Stock	267 Can ship immediately
On Order	800 Expected on 01-Oct-26
Additional Stock Lead Time	16 Weeks

Quantity	Unit Price	Ext. Price
	$12.69	$12.69
	$10.96	$109.60
	$10.84	$162.60
	$10.44	$261.00
	$10.08	$504.00
	$9.88	$988.00
	$9.77	$2,442.50

FSOT5509E25R00KE

Manufacturer:
Vishay / Huntington

Mfr Part:
FSOT5509E25R00KE

TTI Part:
FSOT5509E25R00KE

Datasheet

EDA / CAD Models

Specifications

Export and Environmental Classification

Documents

Datasheet

EDA / CAD Models

267In Stock

Bulk

My Notes

Manage Cookie Settings

Product Gallery

FSOT5509E25R00KE

Manufacturer: Vishay / Huntington

Mfr Part: FSOT5509E25R00KE

TTI Part: FSOT5509E25R00KE

Datasheet

EDA / CAD Models

Specifications

Packaging

Export and Environmental Classification

Documents

Datasheet

EDA / CAD Models

267In Stock

Incoming Inventory

Bulk

Lead Time

My Notes

RoHS/Lead

RoHS Compliance

Lead (Pb)

Manufacturer:
Vishay / Huntington

Mfr Part:
FSOT5509E25R00KE

TTI Part:
FSOT5509E25R00KE