Contact Mouser (USA)  (800) 346-6873     |     Feedback        
View Cart     |     Change Location  USD
United States United States

Please confirm your currency selection:

US Dollars
NEDA Authorized Welwyn Components / TT Electronics Distributor
Welwyn / TT Electronics
   
View all
Welwyn / TT Electronics Products
View
TT Electronics NEWESTPRODUCTS
   

Home | AB Connectors | BI Technologies | IRC | Optek Technology | Semelab | Welwyn Components

 

Welwyn Components designs and manufactures electronic components for customers across defense and aerospace, medical, transportation, energy and industrial electronics markets. Key applications are circuit protection, power and energy management, medical device equipment and signal conditioning. Products include: fixed resistors - current sense, high power, precision, fusible, flameproof, high voltage/value, surge/pulse, general purpose and dividers.

 
TT Electronics Technology Center

TT Electronics Technology CenterThe Technology Showcase brings together TT Electronics' key products within selected vertical markets: medical, defence & aerospace, industrial, transportation and energy. Highlighting their latest and most innovative products, the Showcase helps you to choose the right products to develop your applications.
Learn More >>

 
TT Electronics Newest Products

Welwyn Components / TT Electronics Product Line

Welwyn Components / TT Electronics New Products

Added 02/2013 TT Electronics PCF Series Thin Film Resistors Learn More
Added 02/2013 TT Electronics WPRT Series Wirewound Resistors Learn More
Added 02/2013 TT Electronics WHS Series Wirewound High Surge Resistors Learn More
Added 07/2011 TT Electronics PWC Series Chip Resistors - New At Mouser Learn More
Added 07/2011 TT Electronics W20 Series Wirewound Resistors Learn More
Added 07/2011 TT Electronics DSC Series Double-Sided Chip Resistors Learn More
Added 07/2011 TT Electronics WH Series Aluminum Housed Wirewound Resistors - New At Mouser Learn More
Added 07/2011 TT Electronics RC Series Precision Metal Film Resistors - New At Mouser Learn More
Added 08/2010 TT Electronics ULW Series UL Recognized Wirewound Resistors Learn More
Added 08/2010 TT Electronics EMC Series Pulse Withstanding Resistors Learn More

Welwyn Components / TT Electronics Featured Products

Welwyn / TT Electronics LRMA Low Resistance Metal Alloy Resistors

Welwyn / TT ElectronicsLRMA Low Resistance Metal Alloy Resistors offer metal element construction, good surge performance, low TCR down to 75ppm/°C, and are AEC-Q200 certified for automotive applications. Specific applications include power supplies, small motor control, medical PSU, and battery chargers.

Welwyn / TT Electronics PCF Series Thin Film Resistors

Welwyn / TT ElectronicsPCF Series Thin Film SMT Resistors are constructed from a thin-film material selectively deposited on a 96% alumina substrate with metallic contacts at each end and supplied with 100% Sn matte plated wrap-around terminations suitable for soldering.  The wrap-around terminations supplied to the PCF Series Thin Film Resistor chips from Welwyn / TT Electronics have an electroplated nickel barrier and tin coating that ensures excellent "leach" resistance properties and reliable contact to the PCB.  These robust resistors can operate at a maximum temperature of 125ºC, and up to 155ºC for higher power grades. PCF Series Thin Film Resistors offer an extended ohmic range from 1R-3M and superior humidity performance at a passivated range.

TT Electronics Welwyn WPRT Wirewound Resistors

TT electronics Welwyn WPRT Series Wirewound Resistors feature 10 - 50W power range, up to 250W overload, quick connect or soldered tags, optional mounting bracket, and flameproof construction. They are designed as a high power resistor with high overload rating and optimized surge energy capacity, and are designed for high power energy conversion systems in such areas as electric vehicles and motor drives. Ideal markets for TT Electronics Welwyn WPRT Series Wirewound Resistors include industrial, automotive, and energy.

Welwyn / TT Electronics WHS Wirewound High Surge Resistors

Welwyn / TT Electronics WHS Series Wirewound High Surge Resistors offer the industry's highest surge energy ratings from 2W to 7W sizes. The WHS2, rated at 2W, is the smallest resistor of its type on the market and provides surge energy ratings of 0.9 to 5.8J. WHS Series Wirewound High Surge Resistors are available rated 3, 5 and 7W, in resistance values up to 330Ω and taking energy ratings up to 60J. Designers have greater flexibility with the additional options of radial, goalpost, lancet and SMD Z-form leads. All the WHS Series Wirewound High Surge Resistors benefit from UL94-V0 flameproof protection and operate over a wide -55º to +155ºC temperature range. Suitable for a wide range of pulse applications, the Welwyn / TT Electronics WHS Series Wirewound High Surge Resistors are flameproof, and are aimed at designers of power supplies requiring a line input resistor for inrush limiting and protection.

Welwyn RC Series Precision Metal Film Resistors

Welwyn's RC Series Precision Metal Film Resistors are CECC-released devices with low TCRs over a wide resistance range. Other features of Welwyn's RC Series resistors are resistance tolerance down to 0.05%, low noise and negligible voltage coefficient, and screened parts available for critical applications. Express delivery is available for this product.

Welwyn WH Series Aluminum Housed Wirewound Resistors

The WH Series Aluminum Housed Wirewound Resistors from Welwyn have an all-welded construction and high-power dissipation up to 300W. Welwyn's WH Series wirewound resistors are suitable for severe environments and designed for excellent thermal conductivity to heatsinks. In addition, these resistors offer a spade terminal option and are RoHS compliant.

Welwyn DSC Series Double-Sided Chip Resistors

Welwyn's DSC Series Double-Sided Chip Resistors have two parallel resistance elements in a single chip. Other features of the DSC Series chip resistors from Welwyn include excellent pulse withstand performance, operating temperature range of -55 to +155ºC, enhanced working voltage and power rating, and Pb-free terminations. The DSC Series is also laser trimmed up to 0.5% tolerance.

Welwyn PWC Series Chip Resistors

The PWC Series Chip Resistors from Welwyn offer excellent pulse withstand performance and improved working voltage. In addition, Welwyn's PWC Series Chip Resistors have standard chip sizes (0805 to 2512), improved power rating, operating temperature range of -55 to +155ºC, and custom designs available.

Welwyn W20 Series Wirewound Resistors

Welwyn's W20 Series Wirewound Resistors are CECC approved and offer high stability and reliability. Suitable for harsh environments, the W20 Series resistors from Welwyn have an impervious lead-free vitreous enamel coating. In addition, these resistors feature high-power dissipation for their size and overload characteristics ideal for protection circuits.

Welwyn ULW Series UL Recognized Wirewound Resistors

The Welwyn ULW Series UL Recognized Wirewound Resistors are fusable resistors with failsafe AC fusing at 120 / 240Vrms, inrush and surge withstanding. With a UL940V0 flameproof coating, the ULW Series offers power ratings of 2W, 3W, 4W, and 5W. The Welwyn ULW Series UL Recognized Wirewound Resistors are available SMD and are RoHS compliant.

Welwyn EMC Series Pulse Withstanding Resistors

Welwyn EMC Series Pulse Withstanding Resistors feature failsafe 240V AC fusing with good pulse handling capability. The flameproof (UL94-V0) metal film resistors are a small size for the 2W power rating. The Welwyn EMC Series Pulse Withstanding Resistors offer a resistance range of 4R7 - 68R Ohms and are UL1412 recognized.