General Note

IRC reserves the right to make changes in product specification without notice or liability.

All information is subject to IRC’s own data and is considered accurate at time of going to print.

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Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

PWC Series Issue January 2009

Electrical Data

Pulse Withstanding

Chip Resistors

Environmental Data

Test

Typical ∆R

Load life at rated power (1000 hours @ 70°C)

1.00%

0.25%

Overload (5.0 X rated power for 2512, 6.25 X rated power for other sizes, 5 secs)

1.00%

0.10%

High temperature storage (1000 hours @ 155°C)

1.00%

0.20%

Moisture resistance

1.00%

0.25%

Thermal shock

0.25%

0.05%

Resistance to soldering heat

0.25%

0.05%

Characteristic

0805

1206

2010

2512

Resistance Range

±1%, ±5%

±0.5%

1.0W to 10MW

10W to 1MW

Power @ 70°C

125mW

500mW

1.0W

2.0W

Max Voltage Rating

150V

200V

400V

500V

Absolute TCR

<6W = 0 – 350ppm; ≥6W = ±100ppm/°C

Operating Temperature

-55°C to +155°C

Thermal Impedance

220°C/W

160°C/W

80°C/W

40°C/W

Pad/Trace Area

Termination

Wrap-around Sn/Pb or Pb-free with leach resistant Ni barrier

*Recommended minimum pad and adjacent trace area for each termination for rated power on FR4 PCB.

PWC Series