Model

Ohms

Code

688A

50K

100K

5002

1003

688B

100K

1003

Model

Package

Per Resistor

688

.7

.1

Nichrome Resistor Networks

on Ceramic Substrates

Model 688 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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10.13

Accuracy Code

B

D

F

Absolute Resistance Tolerances, at 25°C

0.1%

0.5%

1.0%

Ratio

0.1%

0.1%

0.5%

Temperature Coefficient of Resistance

±25ppm/°C

Temperature Coefficient of Resistance, Tracking

±5ppm/°C

Tolerances

Lead Material

100% matte Tin (RoHS)

Lead Configuration

Gull Wing

Lead Coplanarity

0.004” (0.102mm)

Substrate Material

Alumina

Resistor Material

Nichrome

Body Material

Molded Epoxy

Mechanical

Solder Pad Layout (Inch/mm)

Percent of

Rated Power

100

80

60

40

20

0

150

125

70

-0

Degrees C

.025

0.64

.080

2.03

.300

7.62

.050

1.27

Typ.

.460

11.7

Power Dissipation, Watts At 70°C

Standard Resistance Values, Ohms

Power Derating Curve

OBSOLETE