GENERAL PURPOSE CHIP RESISTORS
RC1218
5%, 1%
DATA SHEET
RoHS compliant
Product specification – Jul 15, 2008 V.2
Supersedes Date of Mar. 06, 2003
Product specification
2
8
Chip Resistor Surface Mount
RC
SERIES
1218 (RoHS Compliant)
SCOPE
This specification describes
RC1218 series chip resistors
with lead-free terminations made
by thick film process.
APPLICATIONS
All general purpose application
FEATURES
RoHS compliant
-
ORDERING INFORMATION - GLOBAL PART NUMBER & 12NC
Both part numbers are identified by the series, size, tolerance, packing
type, temperature coefficient, taping reel and resistance value.
YAGEO BRAND ordering code
GLOBAL PART NUMBER
RC1218
(1) (2) (3) (4)
(5)
(
PREFERRED
)
X K - XX XXXX L
(6)
(1) TOLERANCE
F = ±1%
J = ±5% (for Jumper ordering, use code of J)
Products with lead free
terminations meet RoHS
requirements
Pb-glass contained in electrodes
Resistor element and glass are
exempted by RoHS
(2) PACKAGING TYPE
K = Embossed taping reel
-
-
(3) TEMPERATURE COEFFICIENT OF RESISTANCE
– = Base on spec
(4) TAPING REEL
07 = 7 inch dia. Reel
Reducing environmentally
hazardous wastes
High component and equipment
reliability
Saving of PCB space
None forbidden-materials used
in products/production
Halogen Free Epoxy
(5) RESISTANCE VALUE
There are 2~4 digits indicated the resistor value. Letter R/K/M is decimal point, no need
to mention the last zero after R/K/M, e.g.1K2, not 1K20.
Detailed resistance rules show in table of “Resistance rule of global part number”.
(6) OPTIONAL CODE
L = optional symbol
(Note)
Resistance rule of global part
number
Resistance code rule
Example
0R
XRXX
(1 to 9.76
Ω)
XXRX
(10 to 97.6
Ω)
XXXR
(100 to 976
Ω)
XKXX
(1 to 9.76 KΩ)
XMXX
(1 to 9.76 MΩ)
0R = Jumper
1R = 1
Ω
1R5 = 1.5
Ω
9R76 = 9.76
Ω
10R = 10
Ω
97R6 = 97.6
Ω
100R = 100
Ω
1K = 1,000
Ω
9K76 = 9760
Ω
1M = 1,000,000
Ω
9M76= 9,760,000
Ω
O
RDERING EXAMPLE
The ordering code of a RC1218
chip resistor, value 56
X
with
±1% tolerance, supplied in 7-inch
tape reel is: RC1218FK-0756R(L).
NOTE
1. All our RSMD products meet RoHS
compliant. "LFP" of the internal 2D reel
label mentions "Lead Free Process"
2. On customized label, "LFP" or specific
symbol printed and the optional "L" at
the end of GLOBAL PART NUMBER /
12NC can be added (both are on
customer request)
www.yageo.com
Jul 15, 2008 V.2
Product specification
3
8
Chip Resistor Surface Mount
RC
SERIES
1218 (RoHS Compliant)
PHYCOMP BRAND ordering codes
Both GLOBAL PART NUMBER (preferred) and 12NC (traditional) codes are acceptable to order Phycomp
brand products.
GLOBAL PART NUMBER
12NC
(
PREFERRED
)
For detailed information of GLOBAL PART NUMBER and ordering example, please refer to page 2.
CODE
2322
(1)
XXX XXXXX L
(2)
(3)
(4)
Last digit of 12NC
Resistance decade
(3)
EMBOSSED TAPE ON REEL (units)
(2)
4,000
735 64xxx
735 7xxxx
735 90007
Last digit
0
7
8
9
1
2
3
4
5
6
TYPE/ START
1218 IN
(1)
PRC201
2322
PRC201
2322
Jumper
2322
TOL.
(%)
±5%
±1%
-
RESISTANCE
RANGE
1 to 1 MΩ
1 to 1 MΩ
0
Ω
0.01 to 0.0976
X
0.1 to 0.976
X
1 to 9.76
X
10 to 97.6
X
100 to 976
X
1 to 9.76 K
X
10 to 97.6 K
X
100 to 976 K
X
1 to 9.76 M
X
10 to 97.6 M
X
Example:
0.02
X
0.3
X
1
X
33 K
X
10 M
X
=
=
=
=
=
(1) The resistors have a 12-digit ordering code starting with 2322.
(2) The subsequent 4 or 5 digits indicate the resistor tolerance and
packaging.
(3) The remaining 4 or 3 digits represent the resistance value with the
last digit indicating the multiplier as shown in the table of
“Last digit of 12NC”.
(4) "L" is optional symbol
(Note)
.
O
RDERING EXAMPLE
The ordering code of a PRC201 resistor, value 56
X
with ±1% tolerance,
supplied in tape of 4,000 units per reel is: 232273575609(L) or
RC1218FK-0756R(L).
NOTE
0200 or 200
3007 or 307
1008 or 108
3303 or 333
1006 or 106
1. All our RSMD products are RoHS compliant. "LFP" of the internal 2D reel label mentions "Lead Free Process"
2. On customized label, "LFP" or specific symbol printed and the optional "L" at the end of GLOBAL PART
NUMBER / 12NC can be added (both are on customer request)
www.yageo.com
Jul 15, 2008 V.2
Product specification
4
8
Chip Resistor Surface Mount
RC
SERIES
1218 (RoHS Compliant)
MARKING
RC1218
101
E-24 series: 3 digits
YNSC023
First two digits for significant figure and 3rd digit for number of zeros
Fig. 1
Value=100
Ω
1000
Both E-24 and E-96 series: 4 digits
YNSC024
First three digits for significant figure and 4th digit for number of zeros
Fig. 2
Value=10 KΩ
For further marking information, please see special data sheet “Chip resistors marking”.
CONSTRUCTION
The resistor is constructed on top
of a high-grade ceramic body.
Internal metal electrodes are added
on each end to make the contacts to
the thick film resistive element. The
composition of the resistive element
is a noble metal imbedded into a
glass and covered by a second glass
to prevent environment influences.
The resistor is laser trimmed to the
rated resistance value. The resistor
is covered with a protective epoxy
coat, finally the two external
terminations (matte tin on Ni-
barrier) are added. See fig.3
OUTLINES
For dimension see Table 1
marking layer
overcoat
Primary glass layer
resistive layer
(Jumper chip is a conductor)
inner electrode
H
termination(Ni/matte tin)
I2
ceramic substrate
overcoat
I
1
W
DIMENSIONS
YNSC066
Table 1
TYPE
L (mm)
W (mm)
H (mm)
I
1
(mm)
I
2
(mm)
L
RC1218
3.10 ± 0.10
4.60 ± 0.10
0.55 ± 0.10
0.45 ± 0.20
0.40 ± 0.20
Fig. 3
Chip resistor outlines
www.yageo.com
Jul 15, 2008 V.2
Product specification
5
8
Chip Resistor Surface Mount
RC
SERIES
1218 (RoHS Compliant)
ELECTRICAL CHARACTERISTICS
Table 2
CHARACTERISTICS
Operating Temperature Range
Maximum Working Voltage
Maximum Overload Voltage
Dielectric Withstanding Voltage
5% (E24)
FOOTPRINT AND SOLDERING
PROFILES
RC1218 1 W
–55 °C to +155 °C
200 V
500 V
500 V
1
Ω
to 1 MΩ
1
Ω
to 1 MΩ
±200 ppm/°C
±100 ppm/°C
6A
10 A
1% (E24/E96)
1
Ω
≤
R
≤
10
Ω
10
Ω
< R
≤
1 MΩ
Rated Current
Maximum Current
For recommended footprint and
soldering profiles, please see the
special data sheet “Chip resistors
mounting”.
Resistance Range
Zero Ohm Jumper < 0.02
Ω
Temperature Coefficient
Jumper Criteria
PACKING STYLE AND PACKAGING QUANTITY
Table 3
Packing style and packaging quantity
PRODUCT TYPE
RC1218
NOTE
PACKING STYLE
Embossed taping reel (K)
REEL DIMENSION
7" (178 mm)
QUANTITY PER REEL
4,000 units
1. For embossed tape and reel specification/dimensions, please see the special data sheet “Packing” document.
FUNCTIONAL DESCRIPTION
POWER RATING
RC1218 rated power at 70°C is 1 W
R
ATED VOLTAGE
The DC or AC (rms) continuous working voltage
corresponding to the rated power is determined by
the following formula:
V=√(P X R)
or max. working voltage whichever is less
Where
V=Continuous rated DC or
AC (rms) working voltage (V)
P=Rated power (W)
R=Resistance value (X)
handbook, halfpage
P
(%Prated )
100
MLB206_2
50
0
55
0
50
70
100
155
o
Tamb ( C)
Fig. 4
Maximum dissipation (P) in percentage of rated power as a
function of the operating ambient temperature (T
amb
)
www.yageo.com
Jul 15, 2008 V.2
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