HIA Series

PRECISION POWER
SILICONE COATED WIRE WOUND RESISTORS
INDUSTRIAL/PROFESSIONAL APPLICATIONS
  • Axial Termination
  • Small Size : Power Ratio
  • 1W to 15 Watts
  • Tolerances as close as 1%
  • R10 to 100K
  • TCR as low as ± 20ppm/°C available depending on application and resistance value.
APPLICABLE STANDARDS -
ML R26 Char. U, EIA-RS-155-B Char. G, JIS-C 6401 Char. G, IEC-Pub 266
and Pub 266 A/Type 2D/ 2F

Physical configuration



 
 
 

HTR TYPE POWER RATING at 25°C DIMENSIONS (mm) RESISTANCE RANGE  WT. PER PC (gms)
L
±1.5 		 D
±0.5 		 I
±1.5 		 d
±0.05 		 MIN MAX
H-1 1W 9.0 4.0 38 0.8 R10 3K5 0.6
H-2 2W 11.0 4.5 38 0.8  R10 5K6 0.8
H-3A 3W 13.0 5.5 38 0.8 R10 10K 1.1
H-3 3W 15.0 6.0 38 .08 R10 12K 1.2
H-4 4W 16.0 6.0 38 0.8 R10 12K 1.3
H-5A 5W 19.5 6.5 38 0.8 R10 20K 2.0
H-5 5W 25.0 8.5 38 0.8 R10 39K 3.3
H-7A 7W 32.0 9.5 38 0.8 R10 68K 5.0
H-7 7W 39.0 8.5 38 0.8 R10 70K 5.4
H-10A 10W 45.0 9.5 38 0.8 R10 100K 5.7
H-10 10W 54.0 8.5 38 0.8 R10 100K 6.3
H-15 15W 45.0 10.0 38 1.0 R10 100K 5.9
NON INDUCTIVE RESISTORS
Low inductance Aryton - Perry winding type resistors are available in this series. For non-inductive types reduce maximum resistance values shown to 50% and the continuous working voltage to 70%
PRE-FORMED LEADS
The resistor terminations can be bent and cut as per requirements for quick PCB mounting. Please send detailed drawings of the type of preforming required.
TAPING
Types H-1, H-2, H-3, H-3A, H-4, H-5A & H-5 can be supplied in taped form. Please refer Taping Specification
Electrical Data /Characteristics
Resistance tolerances available
±10% [K], ± 5% [J], ± 3% [H]
±2% [G], ±1% [F],
[Test method no. 303 of MIL 202 F]

Dielectric withstanding voltage
Max.D R ± (1% + 0.05ohms ). No flashover, mechanical damage, arcing or insulation breakdown.
[Test method no. 301 of MIL 202 F]

Insulation resistance
> 1000 M (dry) > 100 M (wet)
[Test method no. 302 of MIL 202 F]

Short time overload
Max..D R ± ( 2% + 0.05ohms). No arcing, burning or charring. [Test method - 5 sec at 5 times rated power for 3 watts and smaller; 5 sec at 10 times rated power for 4 watts and larger]

Voltage rating
The resistors shall have a rated DC, continuous working voltage, or an approximate sine-wave root mean square (rms.) working voltage at commercial line frequency corresponding to the power rating as determined by the following formula
E =ÖPR
where,
E = rated DC or rms. continuous working voltage.
P = Power rating in watts.
R = Nominal resistance in ohms.
 

Rated ambient temperature - 25°C
Full power dissipation at upto 25°C and linearly derated down to zero dissipation at 275°C. [See derating curve]

Resistor temperature rise as a function of applied power 
[see graph displayed below]


 
ENVIRONMENTAL SPECIFICATIONS
Temp. co-efficient - very low values ± 400 ppm/ °C, low values ± 250 ppm/ °C, medium and high values ± 60ppm/ °C to 150 ppm/ °C [Test method no. 304 of MIL 202 F]
[TCR figures given are based on the usage of normally selected cost effective resistance elements and can be significantly lowered on request]
Moisture resistance
Max..D R ± [3%+0.05 ohms]. 
No mechanical damage.
[[Test method no 106 E of MIL 202 F]		 Load life
Max...D R ± [5%+0.05 ohms ]
No mechanical damage. 
[Test method no.108A of MIL 202 F] 
MECHANICAL SPECIFICATIONS
Pull test
No mechanical damage 
[Force supplied from 2 to 4.5 Kgs depending on size] 		 Solderability
Continuous and satisfactory 
[ Test method no 208 F of MIL 202 F] 

NOTE:
1) In case non inductive type is required please prefix HTR type with "N" eg: NH-2

2) Types H5, H7, H7A, H10 and H10A can be supplied with lead diameter of 1.0 mm. Please specify to avoid confusion.
 

Eurocap International Limited.   138 High Street,  Cheshunt,  Herts,  EN8 0AP  England.
Tel    +44 (0)1992 625407      Fax   +44 (0)1992 625420
Email eurocap@dial.pipex.com