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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.

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

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