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136

SPECIFICATION

RESISTORS

RESISTOR NETWORK SIL

SIL PIN-OUTS

Short Term Overload

∆R/R ± (1% + 0.05Ω)

After application of 21/2 x rated voltage, or the maximum overload voltage, whichever smaller, for a period of 5

secs. Resistance change to be within specification, with no evidence of arcing, burning or charring.

Vibration

∆R/R ± (0.5% + 0.5Ω)

Resistors are to be subjected to vibration of amplitude 0.8mm for 2 hours in each of three mutually

perpendicular directions. The vibration frequency shall be swept from 10 to 55 to 10Hz in 1 minute.

Resistance change to be within specification with no evidence of damage.

Dielectric Strength

Components shall withstand twice their rated voltage for 1 minute applied between termination and substrate. No

evidence of arcing, burning or charring.

Solderability

∆R/R ± (1% + 0.05Ω)

After dipping at 260°C ± 5°C for 10 seconds, resistance change to be within specification, with no evidence of

arcing, burning or charring. Terminations shall maintain a minimum of 75% coverage following the procedures of

MIL-STD-202E.

Load Life

∆R/R ± (2% + 0.05Ω)

After 1000 hours application of the rated voltage with a duty cycle of 11/2 hours ON and 1/2 hour OFF, at

70°C. Resistance change to be within specification, with no evidence of arcing, burning or charring.

Moisture Load

∆R/R ± (2% + 0.05Ω)

After 1000 hours application of the rated voltage with a duty cycle of 11/2 hours ON and 1/2 hour OFF, at

40°C and 90-95% RH. Resistance change to be within specification, with no evidence of arcing, burning

or charring.

Voltage Coefficient

∆R/R < 100ppm/V

Flammability

Product is conformally coated with epoxy resin conforming to UL94V-0.

2

3

4

5

6

7

8

n-1

n = Number of pins

1

Common parts are characterised by having a number of resistive

elements, all of the same nominal value. All elements are connected to pin 1.

1

2

3

4

5

6

n-1

n

n = Number of pins

Isolated parts are characterised by having a number of resistive

elements, all of the same nominal value. All elements are independent.

Common (E)

Isolated (M)