MODEL 628 L
R/2R Ladder
.220” Small Outline
Thick Film DIP
Surface Mount
Resistor Networks
ELECTRICAL
Standard Resistance Range, Ohms
Standard Resistance Tolerance, at 25°C
Operating Temperature Range
Temperature Coefficient of Resistance
Maximum Operating Voltage
Insulation Resistance
Ladder Network Accuracy
MECHANICAL
1K to 100K
±2%
-55°C to +125°C
±100ppm/°C
50Vdc or
√PR
≥10,000
Megohms
8 Bits: ±1/2 LSB, -55°C to +125°C
4
Lead Material
Lead Configuration
Lead Coplanarity
Substrate Material
Resistor Material
Body Material
APPLICABLE DOCUMENTS
Copper Alloy, 60/40 Tin-Lead (Dipped)
Gull Wing
±0.002 in. (0.057mm)
Alumina
Cermet
Epoxy
MIL-R-914 — Resistor Networks, Fixed, Film, Surface Mount Established Reliability General Specification
MIL-STD-202 — Test Methods for Electronic and Electrical Component Parts
EIA-481 — Carrier Taping of Surface Mount Components for Automatic Handling
EIA-PDP-100 — SOGN-0002 Outline Dimensions
Specifications subject to change without notice.
4-131
Model 628 L
OUTLINE DIMENSIONS (Inch/mm)
.445
11.30
.090
2.29
Max.
.028
0.71
Typ.
.310
7.87
Max.
.220
±
.005
5.59
±
0.13
.008
±
.005
0.20
±
0.13
.016
Typ.
0.41
.050
1.27 Typ.
.008
0.20 Typ.
Note: Maximum Allowable Mold Excursion = 0.006"
SCHEMATICS
Model 628 L
8 Bits, 16 Leads
16
16
Model 628 LN
8 Bits, 16 Leads
R
R
R
R
R
R
R
2R
R
R
R
R
R
R
R
2R
2R 2R 2R 2R 2R 2R 2R
2R
2R 2R 2R 2R 2R 2R 2R
2R
1
1
Note: Custom circuits are available. Consult factory.
4-132
Model 628 L
SOLDER PAD LAYOUT
.045
±
.005
1.14
±
0.13
.050
Typ.
1.27
.220
±
.010
5.59
±
0.25
.315
Min.
8.00
.030
±
.005
0.76
±
0.13
POWER DERATING CURVE
POWER DISSIPATION, WATTS AT 70°C
Percent of
Rated Power
100
80
60
40
20
0
-0
70
125 150
Degrees C
Model
628L
Per Package
0.640
Per Resistor
0.040
4
STANDARD RESISTANCE VALUES, OHMS
R/2R
1K/2K
10K/20K
R/2R
25K/50K
50K/100K
R/2R
100K/200K
TYPICAL PART MARKING
Manufacturer’s Trademark
Part
Number:
628L104
8L104
Part
Marking:
8L104
UK MADE
Date Code
Part Marking
Lead #1 Indicator
4-133
Model 628 L
PACKAGING
Standard:
Tape & Reel
Conforms to requirements of EIA-481.
All units oriented with lead #1 to the left of direction of feed.
Tape:
Width
Pocket
Pitch
Diameter
Capacity
=
=
=
=
=
24mm
Embossed Plastic, Antistatic
12mm
13” (330mm) Maximum
2,000 Units
Reel:
Option:
Magazines
Conforms to EIA and JEDEC standards.
All units oriented with lead #1 to the same side.
Magazine:
Capacity
=
50 Units
ORDERING INFORMATION
628 L 104 TR4
Model Series
Circuit Type:
L = Ladder
Standard Tape & Reel Packaging:
(No code used for Magazines.)
R Resistance Code:
First 2 digits are significant.
Last digit denotes the number of trailing zeros.
4-134
Model 628 L
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