RCA-LS e3
www.vishay.com
Vishay Draloric
Sulfur Resistant, Long Side Termination Thick Film Chip Resistors
FEATURES
• Superior resistance against sulfur atmosphere
(H
2
S), according to ASTM B809-95
• Enhanced power rating
• Long side terminations
• Enhanced thermal cycling performance
• AEC-Q200 qualified
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
The sulfur resistant, long side termination thick film chip
resistors series combines the capability to stand harsh
environment operation with enhanced power rating
performance compared to standard long side termination
resistors.
APPLICATIONS
• Automotive
• Industrial
• Commercial
TECHNICAL SPECIFICATIONS
DESCRIPTION
Imperial size
Metric size code
Resistance range
Resistance tolerance
Temperature coefficient
Rated dissipation,
P
70 (1)
Operating voltage,
U
max.
AC
RMS
/DC
Permissible film temperature,
ϑ
F max. (1)
Operating temperature range
Max. resistance change at
P
70
for resistance range, |ΔR/R| after:
1000 h
8000 h
Permissible voltage against ambient
(insulation):
1 min,
U
ins
100 V
100 V
300 V
300 V
300 V
≤
1.0 %
≤
2.0 %
0.25 W
50 V
0.75 W
75 V
RCA0406-LS e3
0406
RR1016M
RCA0612-LS e3
0612
RR1632M
1
Ω
to 1 MΩ; jumper (0
Ω)
± 5 %; ± 1 %
± 200 ppm/K; ± 100 ppm/K
1.0 W
200 V
155 °C
-55 °C to +155 °C
1.0 W
200 V
2.0 W
(2)
200 V
RCA1020-LS e3
1020
RR2550M
RCA1218-LS e3
1218
RR3246M
1
Ω
to 2.2 MΩ;
jumper (0
Ω)
RCA1225-LS e3
1225
RR3263M
1
Ω
to 1 MΩ;
jumper (0
Ω)
Notes
(1)
Please refer to APPLICATION INFORMATION below
(2)
Specified power rating requires dedicated mounting conditions to achieve the required thermal resistance
APPLICATION INFORMATION
When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal
resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted
film temperature is not exceeded.
These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift
increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a
functional lifetime.
Revision: 06-Jul-17
Document Number: 20060
1
For technical questions, contact:
thickfilmchip@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCA-LS e3
www.vishay.com
DESCRIPTION
Production is strictly controlled and follows an extensive set
of instructions established for reproducibility. A cermet film
layer and a glass-over are deposited on a high grade (Al
2
O
3
)
ceramic substrate with its prepared inner contacts on both
sides. A special laser is used to achieve the target value by
smoothly fine trimming the resistive layer without damaging
the ceramics. A special process is used to ensure
resistor long term operation in harsh environment (sulfur
atmosphere). The resistor elements are covered by a
protective coating designed for electrical, mechanical and
climatic protection. The terminations receive a final pure tin
on nickel plating.
The result of the determined production is verified by an
extensive testing procedure on 100 % of the individual chip
resistors. Only accepted products are laid directly into the
tape in accordance with
IEC 60286-3 Type 1a and
Type 2a
(1)
.
Vishay Draloric
The products do not contain any of the banned
substances as per IEC 62474, GADSL, or the SVHC list,
see
www.vishay.com/how/leadfree.
Hence the products fully comply with the following
directives:
• 2000/53/EC End-of-Life Vehicle Directive (ELV) and
Annex II (ELV II)
• 2011/65/EU Restriction of the Use of Hazardous
Substances
Directive
(RoHS)
with
amendment
2015/863/EU
• 2012/19/EU Waste Electrical and Electronic Equipment
Directive (WEEE)
Vishay pursues the elimination of conflict minerals from its
supply chain, see the Conflict Minerals Policy at
www.vishay.com/doc?49037.
APPROVALS
The resistors are qualified according to AEC-Q200.
Where applicable, the resistors are tested in accordance
with
EN 140401-802
which refers to
EN 60115-1,
EN 60115-8
and the variety of environmental test
procedures of the
IEC 60068
(1)
series.
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using wave, reflow or vapor phase as shown in
IEC 61760-1
(1)
. The encapsulation is resistant to all
cleaning solvents commonly used in the electronics
industry, including alcohols, esters and aqueous solutions.
The suitability of conformal coatings, potting compounds
and their processes, if applied, shall be qualified by
appropriate means to ensure the long-term stability of the
whole system.
The resistors are RoHS-compliant, the pure tin plating
provides
compatibility
with
lead
(Pb)-free
and
lead-containing soldering processes. Solderability is
specified for 2 years after production or requalification. The
permitted storage time is 20 years. The immunity of the
plating against tin whisker growth has been proven under
extensive testing.
RELATED PRODUCTS
The RCL e3 series is not designed for sulfur-containing
environment applications. For ordering RCL e3 products
please
refer
to
latest
edition
of
datasheet:
www.vishay.com/doc?20046
MATERIALS
Vishay acknowledges the following systems for the
regulation of hazardous substances:
• IEC 62474, Material Declaration for Products of and for the
Electrotechnical Industry, with the list of declarable
substances given therein
(2)
• The Global Automotive Declarable Substance List
(GADSL)
(3)
• The REACH regulation (1907/2006/EC) and the related list
of substances with very high concern (SVHC)
(4)
for its
supply chain
Notes
(1)
The quoted IEC standards are also released as EN standards with the same number and identical contents
(2)
The IEC 62474 list of declarable substances is maintained in a dedicated database, which is available at
http://std.iec.ch/iec62474
(3)
The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council and available at
www.gadsl.org
(4)
The SVHC list is maintained by the European Chemical Agency (ECHA) and available at
http://echa.europa.eu/candidate-list-table
Revision: 06-Jul-17
Document Number: 20060
4
For technical questions, contact:
thickfilmchip@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCA-LS e3
www.vishay.com
FUNCTIONAL PERFORMANCE
PERFORMANCE IN SULFUR-CONTAINING AMBIANCE
TEST NAME
Reference specification
Test conditions
(temperature, humidity)
Aggressive agent
Failure criteria in VI under magnification
Failure criteria in electrical test
Time before failure
HUMID SULFUR VAPOR TEST
ASTM B809-95
60 °C ± 2 °C
85 % ± 4 % RH
Sulfur (saturated vapor)
HUMID SULFUR VAPOR TEST
(Accelerated)
ASTM B809-95
accelerated conditions
90 °C ± 2 °C
74 % ± 7 % RH
Sulfur (saturated vapor)
Vishay Draloric
No silver sulfide growth at the interface
No silver sulfide growth at the interface
between termination and protective overcoat. between termination and protective overcoat.
No signs of mechanical damage.
No signs of mechanical damage.
≤
(± 1 %
R
+ 0.05
Ω)
8000 h
≤
(± 1 %
R
+ 0.05
Ω)
1000 h
Single Pulse
(1)
Axis Title
2 nd line
^
P
max.
- Pulse Load (W)
1000
1225
1218
1020 in work
0612
0406
10000
100
1000
1st line
2nd line
100
10
10
1
0.1
0.01
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t
i
- Pulse Duration (s)
2nd line
ˆ
ˆ
Maximum pulse load, single pulse; applicable if
P
→
0 and n < 1000 and
U
≤
U
max.
;
for permissible resistance change equivalent to 8000 h operation
Continuous Pulse
(1)
Axis Title
2 nd line
^
P
max.
- Continuous Pulse Load (W)
1000
1225
1218
1020 in work
0612
0406
10000
100
1000
1st line
2nd line
100
10
10
1
0.1
0.01
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t
i
- Pulse Duration (s)
2nd line
ˆ
ˆ
Maximum pulse load, continuous pulses; applicable if
P
≤
P
(
ϑ
amb
) and
U
≤
U
max.
;
for permissible resistance change equivalent to 8000 h operation
(1)
Note
Pulse upgrade under review to match upgraded rated dissipation
Document Number: 20060
5
For technical questions, contact:
thickfilmchip@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Revision: 06-Jul-17
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