4
4-161
Models 898, 899
ELECTRICAL
Standard Resistance Range, Ohms * 10 to 10Meg
Standard Resistance Tolerance, at 25°C ±2% (<33 Ohms = ±2 Ohms)
Optional: ±1% (F Tol.)
Operating Temperature Range -55°C to +125°C
Temperature Coefficient of Resistance ±100ppm/°C (<100 Ohms = ±250ppm/°C)
Temperature Coefficient of Resistance Tracking ±50ppm/°C
Maximum Operating Voltage 100Vdc or √PR
Insulation Resistance ≥10,000 Megohms
ENVIRONMENTAL (PER MIL-R-83401)
Thermal Shock plus Power Conditioning ∆R 0.70%
Short Time Overload ∆R 0.50%
Terminal Strength ∆R 0.25%
Moisture Resistance ∆R 0.50%
Mechanical Shock ∆R 0.25%
Vibration ∆R 0.25%
Low Temperature Storage ∆R 0.25%
High Temperature Exposure ∆R 0.50%
Load Life, 1,000 Hours ∆R 1.00%
Resistance to Solder Heat (Per MIL-STD-202, Method 210, Cond.B) ∆R 0.25%
Dielectric Withstanding Voltage 200V rms 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-O Rated
Storage Temperature Range -55°C to +125°C
* Plus “0 Ohm” jumper
MODELS 898, 899
Dual-In-Line
Thick Film
Resistor Networks
Specifications subject to change without notice.
——Resistor (Per Circuit)——
Model Package -1 -3 -5
898 2.0 .125 .250 .125
899 1.8 .125 .250 .125
POWER DISSIPATION, WATTS AT 70°C
4-162
Models 898, 899
Lead Material Copper Alloy, 60/40 Tin-Lead (Plating)
Substrate Material Alumina
Resistor Material Cermet
APPLICABLE DOCUMENTS
MIL-R-83401 — Resistor Networks, Fixed, Film, General Specifications
MIL-STD-105 — Sampling Procedures and Tables for Inspection by Attributes
MIL-STD-202 — Test Methods for Electronic and Electrical Component Parts
22 390 5.6K 100K
27 470 6.8K 120K
33 510 8.2K 150K
39 560 10K 180K
47 680 12K 200K
51 820 15K 220K
56 1K 18K 270K
68 1.2K 20K 330K
82 1.5K 22K 390K
100 1.8K 27K 470K
120 2K 33K 510K
150 2.2K 39K 560K
180 2.7K 47K 680K
200 3.3K 51K 820K
220 3.9K 56K 1Meg
270 4.7K 68K
330 5.1K 82K
R1/R2 R1/R2 R1/R2 R1/R2
180/390 220/330 330/470 3K/6.2K
220/270 330/390 330/680
-5 Circuit (Dual Terminators)
-3 Circuit (Isolated Resistors) & -1 Circuits (Bussed Resistors)
MECHANICAL
STANDARD RESISTANCE VALUES, OHMS
4
4-163
Models 898, 899
SCHEMATICS
OUTLINE DIMENSIONS (Inch/mm)
Note: Model 899: N = 114 Leads, Model 898: N = 16 Leads.
Custom circuits are available. Consult Factory.
Model 898
Model 899
.780
19.8
Max.
.880
22.4
Max.
Notes:
Unless otherwise specified,
tolerances are
.005
±
0.13
.250
Ref.
6.35
.125
Max.
3.18
.100 ± .010*
.080 ± .020
2.03 ± 0.51
2.54 ± 0.25
.018 ± .003
0.46 ± 0.08
.600 ± .010
15.2 ± 0.25
.700 ± .010
17.8 ± 0.25
-3 Circuit - Isolated Resistors -1 Circuit - Bussed Resistors
N
N
.050
1.27
Ref.
.340 ± .020
8.64 ± 0.51
.060
1.52
.020
Min.
0.51
.135 ± .030
3.43 ± 0.76
Typical spacing
*
non-accumulating
lead thickness:
Max.
Ref.
.185
Max.
4.70
.010 ± .002
0.25 ± 0.05
-5 Circuit - Dual Terminator
N
R1
R2
1
16
N/2
-42 Circuit - 5.2V (VEE) Pull-Down
V
V
CC
EE
1
RR
cR RRRRRRRRR
1
V
CC
Custom Model: 898-42-R (R)
R=510Ω
V
EE
N/2
-45 Circuit - TTL to ECL Translator
V
CC
16
R
1
R
2
R
3
1
TTL Inputs
1
V
Outputs To ECL
CC
Custom Model: 898-45
R
=180Ω R2=270Ω R3=820Ω
1
N/2
180Ω
270Ω
820Ω
V
EE
4-164
Models 898, 899
ORDERING INFORMATION
PACKAGING
Standard: Magazines
All Units oriented with lead #1 to the same side.
Magazine: Material = Antistatic Plastic
Capacity = 25 Units
TYPICAL PART MARKING
Package Code – # Of Leads
Model Series
Number of Leads:
9 = 14 Leads
8 = 16 Leads
Circuit Type:
3 = Isolated
1 = Bussed
5 = Dual Terminator
898-3-R10K
Lead #1
Indicator
899 = 14 Leads
898 = 16 Leads
89 9 -5- R220 / R330 F
Date Code
Optional Locations
Resistance Value
Circuit Type: (–1 Bussed)
(–3 Isolated)
(–5 Dual Terminator)
Tolerance Code:
F = ±1%
(No code used for standard tolerances.)
R2 Resistance Value:
(Add for -5 circuit only)
Resistance Value
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