4-6

Model BCN Series

ENVIRONMENTAL

Operating Temperature Range

-55°C to +125°C

Temperature Coefficient of Resistance

BCN 4D, BCN 16 8R/8S, BCN 21, BCN 31:

±200ppm/°C

BCN 102, BCN 104, BCN 16 4:

±250ppm/°C

Moisture Resistance

1,000 hours at +40°C, 95% R.H. (3.0%+0.1

Ω∆R)

High Temperature Operation

1,000 hours at 70°C (3.0%+0.1

Ω∆R)

Short Time Overload

2.5 x rated voltage, 5 seconds (2.0%+0.1

Ω∆R)

Temperature Cycling

-55°C to +125°C, 5 cycles (1.0%+0.1

Ω∆R)

Resistance to Solder Heat

260°C for 10 seconds (1.0%+0.1

Ω∆R)

Load Life

1,000 hours at 70°C (3.0%±0.1

Ω∆R)

Standard Resistance Range, Ohms

BCN 4D, BCN 10, BCN16 4:

10 to 1 Megohm

BCN 16 8R/8S:

100 to 1 Megohm

BCN 31 8R/8S:

22 to 1 Megohm

BCN 21:

68 to 220K

Standard Resistance Tolerance

±5% (J. Tol.)

Optional: ±1% (F Tol.), BCN 4D, BCN 16 4, BCN 318RB/8SB Only

±2% (G Tol.), BCN 16 4, BCN 31 8RB/8RS Only

Operating Voltage, Maximum

BCN16 4, BCN 31 8R/8S:

50Vdc or

√pr

BCN 102, BCN 104, BCN 16 8R/8S, BCN 21:

25Vdc or

√pr

BCN 4D:

75Vdc or

√pr

Power Rating, Watts at 70°C

BCN 102:

63mW per Resistor / 125mW per Package

BCN 4D:

125mW per Resistor / 500mW per Package

BCN 104:

63mW per Resistor / 125mW per Package

BCN 16 4A:

63mW per Resistor / 250mW per Package

BCN 16 8R/8S:

32mW per Resistor / 250mW per Package

BCN 21, BCN 31 8R/8S: 63mW per Resistor / 500mW per Package

ELECTRICAL

CONSTRUCTION

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90/10 Tin-Lead

Solder Coating

Nickel Barrier

Silver Palladium

Alumina Substrate

Electrode: Solder Plating

on Thick Conductor

Glass Passivation: Glass Protective Coating

Resistor:

Ruthenium Oxide

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