4
4-157
Models 898, 899 Ladder
APPLICABLE DOCUMENTS
MIL-R-83401 -- Resistor Networks, Fixed, Film, General Specifications
MIL-STD-202 -- Test Methods for Electronic and Electrical Component Parts
MIL-STD-105 -- Sampling Procedures and Tables for Inspection by Attributes
ELECTRICAL
Standard Resistance Range, Ohms
1K to 500K
Standard Resistance Tolerance, at 25C
2%
Operating Temperature Range
-40C to +70C
Temperature Coefficient of Resistance
100ppm/C
Maximum Operating Voltage
100Vdc or
PR
Insulation Resistance
10,000 Megohms
Ladder Network Accuracy
8 Bits: 1/2LSB, -40C to +70C
10 Bits:
1LSB, -40C to +70C
MECHANICAL
Lead Material
Copper Alloy, 60/40 Tin-Lead Plating
Substrate Material
Alumina
Resistor Material
Cermet
MODELS 898, 899
R/2R Ladder
Dual-In-Line
Thick Film
Resistor Networks
Specifications subject to change without notice.
4-158
Models 898, 899 Ladder
.340
.020
8.64
0.51
Ref.
.050
1.27
Max.
.125
3.18
Max.
.185
4.70
Ref.
.060
1.52
Min.
.020
0.51
Max.
.880
22.4
Model 898
Model 899
Max.
.780
19.8
Ref.
.250
6.35
.135
.030
3.43
0.76
Typical spacing
non-accumulating
*
.600
.010
15.2
0.25
.018
.003
0.46
0.08
.100
.010*
2.54
0.25
.080
.020
2.03
0.51
.700
.010
17.8
0.25
OUTLINE DIMENSIONS (Inch/mm)
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R 2R
2R
16
1
898-81 Circuit
8 Bits, 16 Leads
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R 2R
2R
16
1
898-82 Circuit
8 Bits, 16 Leads
899-10 Circuit
10 Bits, 14 Leads
2R
R
14
1
2R
R
2R
R
2R
R
2R
2R
2R
2R
2R
R
R
R
2R
2R
R
R
SCHEMATICS
Note: Custom configurations are available. Consult factory.
4
4-159
Models 898, 899 Ladder
ORDERING INFORMATION
89 8 -81 R10K
Model Series
R Resistance Value
Circuit Type:
81 = 8 Bits
82 = 8 Bits
Number of Leads:
8 = 16 Leads
89 9 -10 R10K
Model Series
R Resistance Value
Circuit Type:
10 = 10 Bits
Number of Leads:
9 = 14 Leads
Model
Per Package
Per Resistor
898-8X
0.8
.050
899-10
1.0
.050
POWER DISSIPATION, WATTS AT 70C
PACKAGING
Standard:
Magazines
All Units oriented with lead #1 to the same side.
Magazine:
Material
=
Antistatic Plastic
Capacity
=
25 Units
TYPICAL PART MARKING
898-81-R10K
Model Number:
899 = 14 Leads
898 = 16 Leads
Lead #1
Indicator
R Resistance Value
Date Code
Optional Location
Circuit Type: 10 (10 bits)
81 ( 8 bits)
82 ( 8 bits)
STANDARD RESISTANCE VALUES, OHMS
R/2R
R/2R
R/2R
10K/20K
25K/50K
100K/200K
50K/100K
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