Digital systems incorporating Emitter
Coupled Logic (ECL) or other ultra-high
switching speed logic families will
require signal termination to prevent
transmission line effects such as refl ec-
tions and ringing due to fast transition
times.
Bourns 800 series resistor capacitor
networks are ideal for termination of
high speed transmission lines. Each
network is composed of resistors
for parallel termination and bypass
capacitor(s) for cross talk noise
reduction.
The 5 conformal coated SIP circuit
variations offered are as follows.
Resistance Tolerance .................... ±5 %
Resistance Power ...................... 0.1 watt
Capacitance Tolerance ................ ±20 %
Capacitor Dielectric Type ................ X7R
Capacitance Voltage Rating ...... 50 Volts
Flammability ........Conforms to UL94V-0
Leadframe ..................Copper (Olin 194)
Body Material ............. Epoxy/Anhydride
Custom Resistance Range
Custom Capacitance Range
NPO and Z5U dielectrics available on a
custom basis.
For Standard Values Used in
Capacitors, Inductors, and Resistors,
click
General Description
Electrical Characteristics
Physical Characteristics
........................ 10 ohms to 50K ohms
........................... 39 pF to 100,000 pF
here.
(Conformal Material)
Features
■
■
■
■
Governing dimensions are metric. Dimensions in parentheses
are inches and are approximate.
*Terminal centerline to centerline measurements made at point of
emergence of the lead from the body.
800 Series - RC Networks ECL Terminator Circuits
MEDIUM PROFILE
HIGH PROFILE
BOTH ENDS
BOTH ENDS
Product Dimensions
Optimizes data transmission in ECL
systems through proper termination
between drivers and receivers
Minimizes overshoot, undershoot, and
ringing while increasing noise immunity
Provides decoupling capacitors
RoHS compliant*
(.020 ± .002)
(.020 ± .002)
MAX.
MAX.
.508 ± .050
.508 ± .050
(.100 ± .003*)
(.100 ± .003*)
NON-ACCUM.
NON-ACCUM.
2.54 ± .07
2.54 ± .07
(.049)
(.049)
1.24
1.24
TYP.
PIN #1
TYP.
PIN #1
REF.
REF.
TYP.
TYP.
MAXIMUM
MAXIMUM
A
A
(.010 ± .002)
.254 ± .050
(.010 ± .002)
(.098)
.254 ± .050
(.150)
2.49
3.81
(.135 + .015/ - .010)
(.135 + .015/ - .010)
3.43 + .38/ - .25
3.43 + .38/ - .25
MAX.
(.250)
(.350)
MAX.
MAX.
MAX.
6.35
8.89
Customers should verify actual device performance in their specifi c applications.
TYP.
TYP.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
For information on ECL Terminators, download
Bourns’ ECL Terminator Application Note.
801 AND 802
Represents total content. Layout may vary.
803 AND 805
Represents total content. Layout may vary.
804
Represents total content. Layout may vary.
Typical Part Marking
Specifi cations are subject to change without notice.
PART NUMBER
PART NUMBER
PART NUMBER
The 800 Series is obsolete,
and not recommended for new
PIN ONE
INDICATOR
PIN ONE
INDICATOR
PIN ONE
INDICATOR
designs.
4608M-801
4610H-805
4612M-804
500/103
500/103
500
YYWW
YYWW
YYWW
MANUFACTURER'S
TRADEMARK
MANUFACTURER'S
TRADEMARK
MANUFACTURER'S
TRADEMARK
CIRCUIT
CIRCUIT
CIRCUIT
RESISTANCE
CODE
DATE CODE
RESISTANCE
CODE
DATE CODE
RESISTANCE
CODE
DATE CODE