MODELS 627, 628

Model 627, 628 Series

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General Note

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

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

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10.12

Standard Resistance Range, Ohms

10 to 1Meg (Plus “0” Ohm Jumper)

Standard Resistance Tolerance, at 25°C

±2%(<33

Ω = ±1 Ohm)

(Optional: F Tol. = ±1%)

Operating Temperature Range

-55°C to +125°C

Temperature Coefficient of Resistance

±100ppm/°C (<100

Ω = ±250ppm/°C)

Temperature Coefficient of Resistance, Tracking

±50ppm/°C

Maximum Operating Voltage

50Vdc or

√PR

Insulation Resistance

≥10,000 Megohms

Thermal Shock plus Power Conditioning

ΔR 0.70%

Short Time Overload

ΔR 0.25%

Moisture Resistance

ΔR 0.50%

Mechanical Shock

ΔR 0.25%

Vibration

ΔR 0.25%

Low Temperature Operation

ΔR 0.25%

High Temperature Exposure

ΔR 0.50%

Load Life, 2000 Hours (

≤330Ω = ±0.5 Ohm)

ΔR 0.50%

Resistance to Solder Heat (Total Immersion in solder at 280°C for 10 sec.)

ΔR 0.25%

Dielectric Withstanding Voltage

200V for 1 minute

Temperature Exposure, Maximum

215°C for 3 minutes

Marking Permanency

MIL-STD-202, Method 215

Lead Solderability

MIL-STD-202, Method 208

Flammability

UL-94V-0 Rated

Storage Temperature Range

–55°C to +150°C

Electrical

Environmental