TECNOMEGA Componentes Electrónicos S.L.
Barrio Florida, 56 ; L-29
20120 HERNANI (SPAIN)
Phone: 34 943 330710 - Fax: 34 943 331106
e-mail: info@tecnomega.es

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Further
Information

 
TV - Tubular Wirewound Vitreous Enamelled Resistors
TVN - Non-Inductive
TVR - Adjustable

Series TV-TVN-TVR, of rugged construction and all electrically welded for higher reliability, are coated with two (sometimes three) layers of enamel glazed at a very high temperature, thus providing their characteristic high insulation resistance, dielectric strength and climatic protection. Terminal tabs jutting out radially are the only parts of the resistor left uncovered by vitreous enamel; they are tin-coated and easily soldered.

TVN by Ayrton-Perry winding method: two resistive wires wound from opposite terminals, currents flowing in parallel so as to reduce Inductance to a minimum. Maximum continuous working Voltage is lowered to about 75% of TV maximum Voltage.

TVR fitted with fixed tapping lugs, contacting the stripped band by means of a silver stud.

Series TV, TVN and TVR agree with CCTU 04-02C requirements


Tab Terminal
 TV / TVN

TVR
 Fitted with fixed tapping lugs, contacting the stripped band by means of a silver stud

MAIN FEATURES
  • Entirely Welded Construction
  • Maximum Reliability
  • High Long-Term Stability
  • Great Dielectric Strength
  • Ableness to Withstand Heavy Overload Surges
  • Excellent Insulated Resistance
  • Completely Flameproof
  • Low Temperature Coefficient: < 150 ppm/ ºC
  • Standard Tolerances: ± 10%, ± 5%, ± 2%
 POWER DERATING CURVE AS A FUNCTION OF THE AMBIENT TEMPERATURE



AMBIENT TEMPERATURE ºC

Tab Terminals- Insulated


Bc Terminal: same as Terminal B but 10 mm high instead of 16 mm


General Specifications Table

TYPES
DIMENSIONS
(mm)		 POWER RATE (W) for a Surface  TEMP. OHMIC VALUES
Tamb. 25ºC		 MAX. VOLT. PERMISSIBLE
Vac		 TERMINAL
TYPES 		MOUNTING
SYSTEMS
TV TVR
D L d <=350ºC <=420ºC min. max. min. max. TV TVR TVN
TV 10.45 10 45 6 13 19 0R82 10K 3R3 2K5 380 300 380 A-B-Bc-S V-HS
TV 12.50 12 50 8 19 28 1R 12K 3R9 3K 550 350 550 A-B-Bc-S-Tr V-HS
TV 12.75 12 75 8 30 45 1R3 22K 5R6 4K7 800 550 800 A-B-Bc-S-Tr V-HS
TV 20.75 20 75 14 46 72 1R6 33K 6R6 6K8 800 550 800 A-B-Bc-S V-HS
TV 20.100 20 100 14 58 90 2R 47K 8R2 10K 900 630 900 A-B-Bc-S V-HS
TV 26.87 26 87 19 67 100 5R6 43K 8R2 10K 850 600 850 C-D-Tr V1-HS-HP
TV 26.165 26 165 19 130 195 18R 100K 18R 22K 1600 1000 1600 C-D-Tr V1-HS-HP
TV 30.100 30 100 22 85 135 5R6 68K 12R 15K 900 630 900 C-D-S-Tr V1-HS-HP
TV 30.153 30 153 22 130 200 5R6 120K 22R 25K 1500 1000 1500 C-D--STr V1-HS-HP
TV 30.203 30 203 22 170 265 6R8 150K 27R 35K 2000 1300 2000 C-D-S-Tr V1-HS-HP
TV 30.267 30 267 22 240 355 8R2 220K 33R 47K 3000 1750 3000 C-D-S-Tr V1-HS-HP
TV 30.305 30 305 22 280 400 11R 270K 47R 56K 3400 2000 3400 C-D-S-Tr V1-HS-HP

S: Ring Terminal Type
Dimensions Table

    

Tr: Traction Terminal Type
Dimensions Table

     Mounting
Systems 		 

TVN: For its Minimum and Maximum Ohmic Values, please consult Technical Dprt.

Legend: Printed according to Norms. It will withstand the action of all commonly used industrial cleansing solvents

Ordering Example:

TV-30.203 - 6R8 ± 5%  "HP"
Type Ohm.Value Toler. Mounting System

Mentioning Terminal Type (Tab, Ring, Traction)