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
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HV - Vitreous-Enamelled Axial-Lead Wirewound Resistors
HVN - Non-Inductive Vitreous-Enamelled Axial-Lead WW Resist.

Series HV & HVN are components manufactured with the help of advanced machinery.
Prime materials of the highest quality, their construction thoroughly electrically welded, and quality controls at all stages of the process confer those resistors outstanding professional performance and reliability.
In agreement with Spec. CCTU 04-02C


(mm)


GENERAL SPECIFICATIONS TABLE

TYPE POWER
p/Ths <= 350șC		 OHMIC VALUES DIMENSIONS
MAXIMUM (mm) 		MAX.
WORKING
VOLTAGE		 TYPE TYPE
T amb. 25șC T amb. 70șC MIN. MAX. D L Volts MIL-R26E CCTU 04-02C
HV-4 4W 3.3W 0R1 10K 5.6 12.7 125V RW69 RB59
HV-6 6W 5W 0R1 20K 8 17 250V    
HV-7 7W 6W 0R1 30K 8 22 350V   RB61
HV-8 8W 7W 0R1 40K 8 28 500V RW67 RB57
HV-9 9W 8W 0R1 50K 8 36 550V   RB60
HV-12 12W 10W 0R1 70K 10 36 550V    
HV-15 15W 13W 0R15 100K 10 47 700V RW68 RB58

         Tolerances: ± 5% ; ± 2%; ± 1%

Low-inductance Ayrton-Perry Winding. Maximum continuous voltage is reduced to 70% of Series HV maximum voltage. Ayrton-Perry winding consists of two wires wound from opposite ends, and, therefore, connected in parallel, thus reducing maximum ohmic values obtainable.
Hence, inductance is also reduced considerably since the currents flow in opposite directions.		 NON-INDUCTIVE WIREWOUND RESISTORS 
SERIES HVN
TYPE OHMIC VALUES MAX. VOLTAGE
PERMITTED
MIN. MAX.
HVN-4 0R50 300R 87V
HVN-6 1R 510R 175V
HVN-7 2R 820R 245V
HVN-8 3R 1K 350V
HVN-9 3R9 1K3 385V
HVN-12 5R1 1K8 385V
HVN-15 6R8 2K7 490V

Non-inductive Winding (Ayrton-Perry)
Standard Tolerance: ± 5%

 

RESISTOR TEMPERATURE RISE AS A FUNCTION OF APPLIED POWER POWER DERATING CURVE AS A FUNCTION OF THE AMBIENT TEMPERATURE

APPLIED POWER IN W
AMBIENT TEMPERATURE (șC)

 

CONSTRUCTION

CORE: Rectified Steatite Rod of High Thermical Conductivity
END CAPS: "Gas-free" Fe-Ni Alloy mounted on the rods under pressure.
RESISTIVE WIRE: Ni-Cr; Ni-Cr-Al; Cu-Ni Alloys electrically welded to caps, and wound under dynamically controlled stress to 1/3 of its elastic limit.
WIRE LEADS: Cu-Ni Alloy or Nickel coated steel tinned with Sn-Pb 60/40 Alloy.
RESISTOR COATING: Vitreous-Enamelled at High Temperature


HV - TECHNICAL DATA & PERFORMANCE

TEST CONDITIONS CCTU 04-02C SPECS. MIL R-26E SPECS.
LOAD LIFE Nominal Power Rate: Pn
1,5h.ON -0,5h.OFF		 At 1000h R <= 5% At 2000h R<= 3%
LONG-TERM DAMP HEAT Tamb.= 40șC; HR = 93%
Power = Pn/100		 After 56 days R < 0,4% After 56 days R< 0,4%
SHORT-TERM OVERLOAD 10xPn during 5 sec. R < 0,3% R < 0,3%
INSULATION RESISTANCE 500 V.d.c. > 400 M ohms > 400 M ohms
DIELECTRIC STRENGTH 1000 V.a.c. applied at
100Vxsec.during 1mn.		 > 1000 V.d.c. > 1000 V.a.c.
MECHANICAL TESTS Soldering Test
Solvents Resistance
Lead Pull Resistance		 In accordance with
CCTU 01-01A Specs.		 In accordance with
MIL STD-202 Specs.

 

Electrical Specifications

Standard Tolerances: ± 5%;±2%
Special Tolerances: ±1%
Dialectric Strength: >1000 V.a.c.
Standard Temperature Coefficient: T.C<= 90 p.p.m/șC 

Special Temperature Coefficient

Res.> 10R: T.C<= ± 30 p.p.m./șC
1R0 < Res.< 9R9: T.C.<= ± 50 p.p.m./șC
0R1 < Res.< 0R99: T.C. <= ± 90 p.p.m./șC


Norms: In agreement with CCTU 04-02C; can be manufactured to agree with MIL-R26E Specs.
Special Designs: Series HV can be produced using Al2O3 cores of high purity, thus obtaining higher specific power for equal temperature Ths<= 350șC.
Resistor Marking: Legend printed according to Norms: Manufacturer, Type, Ohmic Value, Tolerance. It will withstand the action of all commonly used industrial cleansing solvents.
Taping Axial Resistors: Following Series can be supplied bandoliered: HV-4, HV-6, HV-7

For Special Ohmic Values, Consult Technical Department.

Ordering Example:

HV-6 - 12K  ± 1% - Enc.
Type Ohm.Value Toler. Taping