OP Series

OPEN FRAME
LOW INDUCTANCE 
PCB MOUNTING
  • 0.5W TO 1.5W
  • R 003 TO R 10

Physical configuration
 
 
HTR TYPE
POWER RATING at 70°C
DIMENSIONS (mm)
RESISTANCE RANGE 
P
± 1mm
 H
(MAX)
MIN
MAX
OP-0.5 0.5W 10.0 7.0 R003 R051
OP-1 1W 10.0 11.0 R0041 R068
OP-1A 1W 15.0 9.0 R0041 R068
OP-1.5 1.5W 10.0 17.5 R0056 R10
OP-1.5A 1.5W 15.0 15.5 R0056 R10
OP-1.5B 1.5W 20.0 12.5 R0056 R10

TYPICAL APPLICATIONS:
The OP series offers a non-insulated, non-inductive resistor having high stability / overload capacity.The solder plated copper terminals are spot welded to the alloy resistive element forming a very reliable all welded construction, which is finding increasing usage in switching and linear power supplies, instruments, regulators and other modern current sensing circuits.

MARKING:
Due to the nature of their construction, these resistors cannot be marked however, the resistance value & other relevent details will be on the packing box.
 

Electrical And Environmental Characteristics / Data
Test
Performance Requirements
Resistance tolerance ± 10% [ K];    ± 5% [J];  ± 2% [G]
Rated ambient temperature at 70° C full power dissipation
Insulation resistance Nil
Temperature co-efficient ±200 ppm/°C to ±1200 ppm/°C depending on resistance value
Short time overload Max D R ± 2%
Moisture resistance Max D R ± 3%
Load Life Max D R ± 5%
Ambient operating temperature range -25° C to +250° C

 

 

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