DATA SH EET
Product specification
Supersedes data of 2nd December 1999 2001 Apr 27 Rev.2
DISCRETE CERAMICS
RC04H/RC14H/RC24H
0.25%
High-precision chip resistors
sizes 1206, 0805 and 0603
www.phycomp-components.com
2001 Apr 27 Rev.2 2 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
FEATURES
•Reduced size of final equipment
•Low assembly costs
•Higher component and equipment
reliability
•Complete high precision
SMD family.
APPLICATIONS
•Measuring ins t rum ents
•Power supplies
•EDP
•Telecom.
DESCRIPTION
The resistors are constructed on a
high grade ceramic body (aluminium
oxide). Internal metal electrodes are
added at each end and co nnected by
a high voltage resistive paste which is
applied to the top surface of the
substrate. The composition of the
paste is adjusted to give the
approximate resistance required and
the value is trimmed to within
tolerance, by laser cutting of this
resist ive layer.
The resistive layer is covered with a
protective coating and printed with the
resistance value. Finally, the two
external end terminations ar e adde d.
To guarantee optimum solderability
the outer layer consists of a
lead-tin alloy.
QUI CK REFERENCE DATA
DESCRIPTION VALUE
RC04H RC14H RC24H
Size code 1206
(3216) 0805
(2012) 0603
(1608)
Resistance range 100 Ω to 1 MΩ;
E24/E96 series
Resistance tolerance ±0.25%
Temperature coefficient:
100 Ω≤R≤1MΩ≤±100 ×10−6/K
Absolute maximum dissipation
at Tamb =70°C0.125 W 0.10 W 0.063 W
Maximum permissible voltage
(DC or RMS) 200 V 150 V 50 V
Climatic ca t egory (I EC 60068) 55/1 25/56
Ba sic specification IEC 60115-8
2001 Apr 27 Rev.2 3 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
ORDERING INFORMATION
Table 1 Ordering code indicating resistor type and packing
TYPE TOL.
(%)
RESISTANCE
VALUE
(Ω)SERIES
ORDERING CODE 2350 54. .....
PAPER TAPE ON REEL
5000 units
RC04H (1206) ±0.25 100 Ω to 1 MΩE24/E96 1 0....
RC14H (0805) 4 0....
RC24H (0603) 7 0....
Ordering code (12NC)
•The resistors have a 12-dig it
ordering code starting with
2350 54; see Table 1.
•The subsequent 2 digits indicates
the resistor type and packing.
•The remaining digits indicate the
resistance value:
– The first 3 digits indicate the
resist ance valu e.
– The last dig it ind ic ate s t he
resistance decade in
accordance with Table 2.
Table 2 Last digit of 12NC
RESISTANCE
DECADE LAST DIGIT
100 Ωto 976 Ω1
1kΩto 9.76 kΩ2
10 kΩto 97.6 kΩ3
100 kΩto 976 kΩ4
1MΩ5
ORDERING EXAMPLE
The ordering code of a RC04H
resistor, value 10 0 Ω with 0.25%
tolerance, supplied on paper tape
of 5000 units per reel is:
2350 541 01001.
2001 Apr 27 Rev.2 4 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal
resistance are taken from the
E24/E96 series for resistors
with a tolerance of ±0.25%.
The values of the E24/E96 series
are in accordance with
“IEC publication 60063”.
Limiting va lues
Note
1. The maximum voltage that may
be continuously applied to the
resistor element, see
“IEC publication 60115-8” and
“IEC publication 60115-2”.
TYPE
LIMI TING
VOLTAGE(1
)
(V)
LIMITING
POWER
(W)
RC04H 200 0.125
RC14H 150 0.10
RC24H 50 0.063
DERATING
The rated power that the resistor can dissipate depends on the operating
temp erature; see Fig.1.
Fig.1 Maximum dissipation (Pmax) in percentage of rated power
as a function of the ambient temperature (Tamb).
handbook, halfpage CCB413
70 100−55 50 Tamb (°C)
00
50
100
125
Pmax
(%Prated)
2001 Apr 27 Rev.2 5 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
MECHANICAL DATA
Mass per 100 units
Marking(1)
Each res is t or is mar k ed with a 4 digit
code on the protective coating to
designate the nominal resistance
value.
The first 3 digits are significant and
the fourth indicates the number of
zeros to follow.
Example
PACKAGE MARKING
The packing is also marked and
includes resistance value, tolerance,
catalogue number, quantity,
producti on pe riod, batch numbe r and
source code.
TYPE MASS
(g)
RC04H 1.0
RC14H 0.55
RC24H 0.25
(1) RC24H has no marking.
MARKING RESISTANCE
120R 120 Ω
8202 82 kΩ
Outlines
Table 3 Chip resistor type and relevant physical dimensions; see Fig.2
TYPE L
(mm) W
(mm) T
(mm) tt
(mm) tb
(mm)
RC04H 3.2
+0.1/−0.2 1.6 ±0.15 0.55 ±0.10 0.45 ±0.25 0.50 ±0.25
RC14H 2.00 ±0.15 1.25 ±0.15 0.55 ±0.10 0.40 ±0.20 0.40 ±0.20
RC24H 1.60 ±0.10 0.80
+0.15/−0.05 0.45 ±0.10 0.30 ±0.20 0.30 ±0.20
Fig.2 Outlines.
For dimensions see Table 3.
tb
tt
T
inner electrode
end termination
protective coat
CCB286
8202
marking
W
L
protective coat
resistor layer
ceramic substrate
2001 Apr 27 Rev.2 6 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
TESTS AND REQUIREM ENTS
Essent iall y all tes ts are ca rri ed out in acc orda nce with the
schedule of “IEC publication 60115-8”, category
55/125/56 (rated temperatur e range −55 to +125 °C;
damp heat, long term, 56 days).
The testing also covers the requirements specified by
EIA and EIAJ .
The tests are carried out in accordance with
IEC publication 60068, “Recommended basic clima t ic
and mechanical robustness testing procedure for
electronic components” and under sta nda rd atmosphe ri c
condi tions in acco rdance with “IEC 60068-1”,
subclause 5.3.
Unless otherwise specified the following values apply:
Temperatur e: 15 °Cto35°C
Relative humidity: 45% to 75%
Air pressure: 86 kPa to 106 kPa
(860 mbar to 1060 mbar).
In Table 4 the tests and requirements are listed with
reference to the relevant clauses of
“IEC publications 60115-8 and 60068”; a short
description of the test procedure is also given. In some
instanc es deviations fro m the IEC recommenda tions were
necessary for our method of specifying.
All solder ing tes ts are per formed with mil dly acti vated fl ux.
Table 4 Test procedures and requirements
IEC
60115-8
CLAUSE
IEC
60068-2
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
Tests in accordance with the schedule of IEC publication 60115-8
4.4.1 visual
examination no holes; clean surface;
no visible damage
4.5 resistance applied voltage (0 to −10%): R - Rnom: max. ±0.25%
100 Ω≤R<1kΩ: 1 V
1kΩ≤R<10 kΩ: 3 V
10 kΩ≤R<100 kΩ: 10 V
100 kΩ≤R<1MΩ: 25 V
R≥1MΩ: 50 V
4.17 20 (Ta) solderability unmounted chips compl etely immersed f or
2±0.5 s in a solder bath at 235 ±2 °Cgood tinning (≥95% covered);
no visible damage
4.18 20 (Tb) resistance to
solde ring heat unmounted chips; 10 ±1s;260±5°C no visible damage
∆R/R max.: ±(0.25% + 0.05 Ω)
4.13 short time
overload room temperature; dissipation = 6.25 ×Pn;
5 s (voltage not more than 2 ×Vmax)∆R/R max.: ±(0.5% + 0.05 Ω)
4.33 bending resistors mounted on a 90 mm glass
epoxy resin PCB (FR4),
bending:
3 mm for 1206; 5 m m for 0805 and 0603
no visible damage
∆R/R max.: ±(0.25% + 0.05 Ω)
4.19 14 (Na) rapid change of
temperature 30 minutes at LCT and
30 minutes at UCT; 5 cycles no visible damage
∆R/R max.: ±(0.25% + 0.05 Ω)
4.6.1.1 insulation
resistance voltage (DC) after 1 minute, metal block
method; 100 V Rins min . : 100 0 MΩ
4.24.2 3 (Ca) damp heat
(steady state) 56 days; 40 ±2°C; 93 +2/−3% RH;
loaded with 0.01 Pn:
R≤1MΩ∆R/R max.: ±(1.0% + 0.1 Ω)
2001 Apr 27 Rev.2 7 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
4.25.1 endurance 1000 +48/−0 hours; 70 ±2°C;
loaded with Pnor Vmax;
1.5 hours on, 0.5 hour off
∆R/R max.: ±(1% + 0.1 Ω)
4.25.1 endurance at
upper category
temperature
1000 +48/−0 hours, no load ∆R/R max.: ±(1% + 0.1 Ω)
4.8.4.2 temperature
coefficient at 20/LCT/20 °C and 20/UCT/20 °C∆R/R max.: ±100 ×10−6/K
Other tests in accordance with IEC 60115 clauses and IEC 60068 test method
4.17 20 (Ta) solderability
(after ageing) 8 hours steam or 16 hours at 155 °C;
unmounted ch ips completely immersed for
2±0.5 s in a solder bath at 235 ±2°C
good tinning (≥95% covered);
no visible damage
4.12 noise IEC publication 60195
(measured with Quantech-equipment):
100 Ω<R≤1kΩmax. 1 µV/V (0 dB)
1kΩ<R≤10 kΩmax. 3 µV/V (9.54 dB)
10 kΩ<R≤100 kΩmax. 6 µV/V (15.56 dB)
100 kΩ<R≤1MΩmax. 10 µV/V (20 dB)
Other applicable tests
leaching unmounted chips 60 ±1s; 260±5°C good tinning; no leaching
(JIS) C
5202 7.5 resistance to
damp heat
(steady state)
1000 +48/−0 hours; 40 ±2°C;
93 +2/−3% RH; loaded with Pnor Vmax;
1.5 hours on, 0.5 hour off
∆R/R max.: ±(2% + 0.1 Ω)
IEC
60115-8
CLAUSE
IEC
60068-2
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
2001 Apr 27 Rev.2 8 www.phycomp-components.com
Phycomp Product specification
High-precision chip resistors
sizes 1206, 0805 and 0603 RC04H/RC14H/RC24H
0.25%
REVISION HISTORY
Revision Date Change
Notification Description
Rev.2 2001 Apr 27 –- Converted to Phycomp brand
