4608X-102-102 Datasheet, PDF (33/62 Pages) Bourns Electronic Solutions – Resistor Networks Product Selection Guide

Features
s Optimize data transmission in ECL
systems through proper termination
between drivers and receivers
s Minimize overshoot, undershoot, and
ringing while increasing noise immunity
s Provide decoupling capacitors
s Minimize space and routing problems,
and reduce manufacturing cost per
installed resistive function
s Increase board yields and reliability by
reducing component count
800 Series - RC Networks ECL Terminator Circuits
General Description
Digital systems incorporating Emitter
Coupled Logic (ECL) or other ultra-high
switching speed logic families will require
signal termination to prevent transmis-
sion line effects such as reflections and
ringing due to fast transition times.
Bourns 800 series resistor capacitor net-
works 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 varia-
tions offered are as follows.
Electrical Characteristics
Resistance Tolerance.......................±5%
Resistance Power.......................0.1 watt
Capacitance Tolerance ..................±20%
Capacitor Dielectric Type..................X7R
Capacitance Voltage Rating .......50 Volts
Physical Characteristics
Flammability .........Conforms to UL94V-0
Leadframe ...................Copper (Olin 194)
Body Material...............Epoxy/Anhydride
(Conformal Material)
Custom Resistance Range
...........................10 ohms to 50K ohms
Custom Capacitance Range
................................39pF to 100,000pF
NPO and Z5U dielectrics available on a
custom basis.
Product Dimensions
MEDIUM PROFILE
A
MAXIMUM
6.35
(.250)
MAX.
PIN #1
REF.
MAX. 1.24
BOTH ENDS (.049)
.508
(.020
±
±
.050
.002)
TYP.
2.54 ± .07
(.100 ± .003*)
TYP.
NON-ACCUM.
3.43 + .38/ - .25
(.135 + .015/ - .010)
3.81
(.150)
MAX.
.254
(.010
±
±
.050
.002)
TYP.
HIGH PROFILE
A
MAXIMUM
8.89
(.350)
MAX.
PIN #1
REF.
MAX. 1.24
BOTH ENDS (.049)
.508
(.020
±
±
.050
.002)
TYP.
2.54 ± .07
(.100 ± .003*)
TYP.
NON-ACCUM.
3.43 + .38/ - .25
(.135 + .015/ - .010)
2.49
(.098)
MAX.
Typical Part Marking
801 AND 802
Represents total content. Layout may vary.
PART NUMBER
PIN ONE
INDICATOR
CIRCUIT
4608M-801
500/103
YYWW
RESISTANCE
CODE
DATE CODE
MANUFACTURER'S
TRADEMARK
803 AND 805
Represents total content. Layout may vary.
PART NUMBER
PIN ONE
INDICATOR
CIRCUIT
4610H-805
500/103
YYWW
RESISTANCE
CODE
DATE CODE
MANUFACTURER'S
TRADEMARK
804
Represents total content. Layout may vary.
PART NUMBER
PIN ONE
INDICATOR
CIRCUIT
4612M-804
500
YYWW
RESISTANCE
CODE
DATE CODE
MANUFACTURER'S
TRADEMARK
.254
(.010
±
±
.050
.002)
TYP.
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.
FOR ADDITIONAL INFORMATION, SEE APPLICATION NOTE ON PAGES 324 AND 325.
Specifications are subject to change without notice.
309