scsi & ecl termination networks
RD(X)
EU
resistors
features
•
•
•
•
•
•
Thin film construction
Surface mount package
Stable resistor density
High resistor density
Application specific design
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
applications
dimensions and
construction
L
•
ECL signal termination
•
SCSI signal termination
Package
Code
Bonding
Wire
d
Q16
Q20
Total
Power
0.8 watts
1 watt
Pins
16
20
Dimensions
inches
(mm)
p ±0.1
H ±0.2
L ±0.2
W ±0.2
.193
(4.90)
.341
(8.66)
.236
(5.99)
.236
(5.99)
.025
(0.635)
.025
(0.635)
__
.063
(1.60)
d ±0.05
__
.010
(0.25)
W
Die
Pad
Si
Wafer
Molded
Resin
Lead
p
circuit schematic
ECL Terminator
SCSI Terminator
R1
R2
R2
R1
R1
R2
R1
RDA:
20 pins
RDB:
20 pins
ordering information
New Part #
RDA
Type
RDA
RDB
Q20
Package
Code
Reference above
table
T
Termination
Material
T: Sn
(Other termination
styles available,
contact factory
for options)
TEB
Packaging
TEB: 13"
embossed
plastic
331J/221J
R1 Value/R2 Value
& Tolerance
3 digits
J: ±5%
H
T.C.R.
H: ±100
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/19/08
98
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
scsi & ecl termination networks
application schematic
ESL Termination
VCC
220
+ Signal
Gnd
330
+ Signal
150
- Signal
330
Gnd
GND
GND
330
SCSI termination
VCC
applications and ratings
Part
Designation
RDA
RDB
Power Rating
@ 70°C
(Per Element)
50mW
T.C.R.
(ppm/°C)
±25%, ±50%, ±100
Resistance
Range
10Ω - 10,000Ω
Resistance
Tolerance
±2%, ±5%
Maximum
Working
Voltage
100V
Operating
Temperature
Range
-55°C to +155°C
environmental applications
Performance Characteristics
Parameter
Resistance to Soldering Heat
Short Time Overload
Moisture Resistance
Thermal Shock
H.A.S.T.
Maximum
∆
R
±0.2%
+0.2%
±0.2%
±0.2%
±0.5%
MIL-R-55342 4.7.7
MIL-R-55342 4.7.5
MIL-STD-202 method 103
MIL-STD-202 method 107
2 Atm., 121°C, 96 hrs
Test Method
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/19/09
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
99
resistors
RD(X)
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