Hybrid Microcircuit Materials
ER4000H Resistor Series
High Voltage Applications
PROCESSING RECOMMENDATIONS
APPLICATION
50 k/sq – 10 M/sq
The ER4000H series resistor system has excellent
stability under continuous or pulsed high voltage
stresses, providing excellent tracking, TCR and
resistance. They are not affected by static
electricity and are recommended for applications
such as color television focus control
potentiometers, voltage dividers, bleeder resistors
and in microcircuits where high value resistivities
are required.
Printing: The specified properties are based on
resistors printed to 25  3m dried print thickness.
This may be achieved using 200 mesh stainless
steel screen, 40m wire diameter with emulsion of
15  3m.
Leveling: 2 to 5 minutes at room temperature
Drying: 10 minutes at 150°C in an oven with forced
air flow or an equivalent conveyor drier
FORMULATION PROPERTIES
Viscosity: 220  30 kcP at 25°C when measured
using a Brookfield HBT viscometer with a #6
spindle at 10 rpm
2
Coverage: 80 to 100 cm /g based on 50 m wet
print thickness
Storage: These pastes should be stored in tightly
capped containers, at room temperature in a dry
place away from direct sunlight
Shelf life: 12 months at 25°C
Blending: Adjacent members of the 4000H series
may be blended to obtain intermediate resistivity
values
Firing: Optimum results are obtained by firing at a
peak temperature of 850°C for 10 minutes with a
total cycle time of 36 to 60 minutes
For the user it is important to establish a consistent
furnace profile to reproduce the manufacturers
reported resistivities, while maintaining the same
profile day-to-day to assure the best yields. A
clean, dry air supply is required for all resistor
firings.
Thinner: While thinning is generally not
recommended, solvent loss may be made up with
Emflow 102
This data represents typical properties and is not intended to be used as specification limits
DISCLAIMER: Reasonable care has been taken in the preparation of this information, but FERRO EXTENDS NO WARRANTIES, MAKES NO
REPRESENTATIONS AND ASSUMES NO RESPONSIBILITY AS TO ACCURACY OR SUITABILITY OF THIS INFORMATION OF THIS PRODUCT FOR ANY
PURCHASER’S OR USER’S USE OR FOR ANY CONSEQUENCE OF ITS USE. FERRO DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR
WARRANTY OF FITNESS FOR ANY PARTICULAR USE. All statements, technical information and recommendations contained herein are based on Seller’s
or Manufacturer’s test and the test of others, and are believed to be accurate, but no guarantee of accuracy is made. Judgment as to the suitability of
information herein or the user’s purposes are necessarily the user’s responsibility. Users shall determine the suitability of the products for their own intended
application.
Users assume all risk of use or handling whether or not in accordance with any statements or recommendation of the seller or manufacturer, Liability, if any, is
and shall be limited to the replacement of such quantity of material proved not to conform to specifications as set out in product specification. Statements
concerning the possible use of these products are not intended as recommendation to use these products in infringement of any patent. No guarantee is made
that any use of the products does not infringe third-party intellectual property or patent rights anywhere in the world.
Page 1 of 2
Ferro Electronic Materials
www.ferro.com
Rev: 01/11
Hybrid Microcircuit Materials
ER4000H Resistor Series
High Voltage Applications
TYPICAL PERFORMANCE
CHARACTERISTICS
Compatibility: The 4000H series resistors are
compatible with 3425-1 and other Pd/Ag
conductors
Calibration: Reported properties were obtained
with pre-fired Ferro 3425-1 Pd/Ag terminations on
96% alumina substrates
Resistivity
(/sq)
[1]
:
[2]
[3]
TCR :
o
(ppm/ C)
VCR :
(ppm/V/mm)
Pulsed Voltage Stability, R
(%)
4045H
50k  15%
 200
0
 1.0
4051H
100k  15%
 200
0
 1.0
4061H
1M  15%
 300
< 10
 0.5
4065H
5M  15%
 350
<10
 0.5
4071H
10M  15%
350
< 25
 0.5
Notes:
[1]
Calibrated on 10mm x 1mm resistor
[2]
Cold TCR: -55°C to 25°C
Hot TCR: 25°C to 125°C
[3]
Tested on 5mm x 1mm resistor at
100V/mm
[4]
Fifty pulses at 2.5 kV/mm
[4]
:
This data represents typical properties and is not intended to be used as specification limits
DISCLAIMER: Reasonable care has been taken in the preparation of this information, but FERRO EXTENDS NO WARRANTIES, MAKES NO
REPRESENTATIONS AND ASSUMES NO RESPONSIBILITY AS TO ACCURACY OR SUITABILITY OF THIS INFORMATION OF THIS PRODUCT FOR ANY
PURCHASER’S OR USER’S USE OR FOR ANY CONSEQUENCE OF ITS USE. FERRO DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR
WARRANTY OF FITNESS FOR ANY PARTICULAR USE. All statements, technical information and recommendations contained herein are based on Seller’s
or Manufacturer’s test and the test of others, and are believed to be accurate, but no guarantee of accuracy is made. Judgment as to the suitability of
information herein or the user’s purposes are necessarily the user’s responsibility. Users shall determine the suitability of the products for their own intended
application.
Users assume all risk of use or handling whether or not in accordance with any statements or recommendation of the seller or manufacturer, Liability, if any, is
and shall be limited to the replacement of such quantity of material proved not to conform to specifications as set out in product specification. Statements
concerning the possible use of these products are not intended as recommendation to use these products in infringement of any patent. No guarantee is made
that any use of the products does not infringe third-party intellectual property or patent rights anywhere in the world.
Page 2 of 2
Ferro Electronic Materials
www.ferro.com
Rev: 01/11