DATA SH EET
Product specification
Supersedes data of 27th April 2001 2001 May 28 Rev.15
DISCRETE CERAMICS
PRC201
5%; 1%
Power chip resistors
size 1218
www.phycomp-components.com
2001 May 28 Rev.15 2 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
FEATURES
•Reduced size of final equipment
•Low assembly costs
•Higher component and equipment
reliability
•Excellent performance at high
frequency.
APPLICATIONS
•Power suppl ies in small sized
equipment
•Camcorders
•Portable radio, CD and cassette
players
•Automotive.
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 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 to lerance, by laser cutting of
this resi stive layer.
The resistive layer is covered with a
protective coating and printed with
the resistance value. Finally, the two
external end terminations ar e added.
To guarantee optimum solderability
the outer layer consists of a
lead-tin alloy.
QUI CK REFERENCE DATA
DESCRIPTION VALUE
Resistance range 1Ωto1MΩ
Resistance tolerance and series:
1Ω≤R≤1MΩ±5%, ±1%;
E24/E96 series
Temperature coefficient:
1Ω≤R<10Ω≤±200 ×10−6/K
10 Ω≤R≤1MΩ≤±100 ×10−6/K
Absolute maximum dissipation at Tamb =70°C1W
Maximum permissible voltage 200 V (DC or RMS)
Maximum permissible current 6 A (DC or RMS)
Operating temperature range −55 °Cto+155°C
Ba sic specification IEC 60115- 8
2001 May 28 Rev.15 3 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
ORDERING INFORMATION
Table 1 Ordering code indicati ng resistor type and packing
Note
1. The jumper has a maximum resistance Rmax =20mΩ and a rated current IR=6A.
TYPE TOL.
(%)
ORDERING CODE 2322 735 .....
BLISTER TAPE ON REEL
5000 units
PRC201 ±5 60...
±1 2....
Jumpe r 0 Ω
PRC201; note 1 −90006
Ordering code (12NC)
•The resistors have a 12-dig it
ordering code starting with 2322
•The subsequent four or five digits
indicate the resistor type and
packing; see Table 1.
•The remaining digits indicate the
resistance value:
– The first 2 digits for 5% or
3 digits for 1% tolerance
produc ts indic ate the re sist ance
value.
– 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
1to9.1Ω8
10 to 91 Ω9
100 to 910 Ω1
1to9.1kΩ2
10 to 91 kΩ3
100 to 910 kΩ4
1MΩ5
ORDERING EXAMPLE
The ordering code of a PRC201
resistor, value 470 Ω with 5%
tolerance, supplied on blister tape
of 5000 units per reel is:
2322 735 60471.
2001 May 28 Rev.15 4 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal
resistance are taken from the
E24 or E96 series for resistors
with a tolerance of ±5% or
±1%. The values of the E24/E96
series are in accordance with
“IEC publication 60063”.
Limiting values
Note
1. The maximum voltage that may be continuously applied to the r esistor
element, see “IEC publication 60115-8”.
TYPE LIMITING
VOLTAGE(1)
(V)
LIMITING
CURRENT
(A)
LIMITING
POWER
(W)
PRC201 200 6 1
DERATING
The power that the resistor can dissipate depends on the operating
temp erature; see Fig.1.
handbook, 4 columns
70 10050
00
50
100
155
CCB412
−55 Tamb (°C)
Pmax
(%Prated)
Fig.1 Maximum dissipation (Pmax) in percentage of rated power
as a function of the ambient temperature (Tamb).
2001 May 28 Rev.15 5 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
PULSE LOADING CAPABILITIES
Fig.2 Pulse on a regular bas i s; maximum permissible pe ak pulse power as a
function of pulse duration for R ≤10 kΩ, single pulse and repetitive pulse tp/ti.
P
ˆmax
()
handbook, full pagewidth
10 11
MLB883
103
1
10
102
10 2
10 3
10 4
10 5
10 6
10 1
Pmax
(W) single pulse
t /t =1000
pi
100
2
A
B
t (s)
i
Single puls e A: R n≤300 Ω.
Single puls e B: R n>300 Ω.
Fig.3 Pulse on a r egula r bas is; maxi mum per missi ble peak puls e vol tage as a
function of pulse duration. V
ˆmax
()
handbook, full pagewidth
600
200
0
400
800 MLB884
10 11
10 2
10 3
10 4
10 5
10 6
Vmax
(V)
t (s)
i
2001 May 28 Rev.15 6 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
These pulses may not be applied on a regular basis.
Fig.4 Maximum permis sible pe ak pu lse vo lta ge wi thout fa ilin g t o ‘ope n circu it’
in accordance with DIN IEC 60040 (CO) 533.
handbook, full pagewidth
10 102103104105106107
MBD582
104
10
102
103
V
R (Ω)
n
1.2/50 µs
10/700 µs
max
(V)
2001 May 28 Rev.15 7 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
Application information
Fig.5 Temperature rise at hot-spot and solder joint
as a function of dissipated power, for a resistor
mounted horizontally on ceramic PCB.
handbook, halfpage
MRA630
0 0.2 0.4 0.6 0.8 1
0
50
100
150
200
P (W)
( C)
o
hot-spot
solder joint
∆ T
Fig.6 Temperature rise at hot-spot and solder joint
as a function of dissipated power, for a
resistor mounted horizontal ly on a FR4 P CB.
handbook, halfpage MRA631
0 0.2 0.4 0.6 0.8 1
0
50
100
150
200
P (W)
hot-spot
solder joint
( C)
o
∆ T
Fig.7 Temperature rise at hot -spot and sol der
joint as a function of dissipated power,
for a resistor horizontally mounted on
the test substrate; see Fig.8.
handbook, halfpage
0 0.2 1.0
100
75
25
0
50
MBD097
0.4 0.6 0.8 P (W)
∆ T
( C)
o
hot-spot
solder joint
bottom side
2001 May 28 Rev.15 8 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
Fig.8 Test sub strate layout . The tracks o n the substrate for values belo w 33 mΩ are wider. With this
substrate, the resistance of the tracks becomes significant compared to the resistor tested.
Due to the current loading required for resistor testing these tracks may be damaged.
handbook, full pagewidth
MBD096
1.0
85
20
20 25
2.0 1.9
5.0
FR4, 1.6 mm electroplated (SnPb) Cu 35 µ
Dimensions in mm.
2001 May 28 Rev.15 9 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
MECHANICAL DATA
Mass per 100 units
Marking
Each resistor is marked with the
nominal resistance value.
4-DIGIT MARKING
For values up to 910 Ω the R is used
as a decimal point. For values of 1 kΩ
or gr eater the le tter K or M is used as
the decimal point for the kΩ or MΩ
indication.
Magnitude indicators
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)
PRC201 3
RESISTANCE INDICATOR
1 to 910 ΩR
1 to 910 kΩK
1MΩM
MARKING RESISTANCE
120R 120 Ω
4K70 4.70 kΩ
Outlines
Table 3 Chip resistor type and relevant physical dimensions; see Fig.9
TYPE L
(mm) W
(mm) T
(mm) tt
(mm) tb
(mm)
PRC201 3.05 ±0.15 4.60 ±0.20 0.55 ±0.10 0.45 ±0.25 0.50 ±0.25
Fig.9 Outlines.
For dimensions see Table 3.
handbook, halfpage
MRA629 - 1
;;
;;
;;;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;;;
protective coat
resistor layer
inner electrode
end termination
ceramic substrate
protective coat
;
;;
220R
T
W
L
tb
tt
2001 May 28 Rev.15 10 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
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
55/155/56 (rated temperatur e ra nge −55 to +155 °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 bas ic cli ma tic
and mechanical robustness testing procedure for
electronic components” and under sta nda rd atmospheric
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 instances deviations from
the IEC re commendatio ns were nece ssary for our m ethod
of speci fy i n g.
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 damage
4.4.2 dimensions
(outline) gauge 0.45 mm ≤T≤0.65 mm
4.4 mm ≤W≤4.8 mm
2.9 mm ≤L≤3.2 mm
4.5 resistance applied voltage (+0/−10%): R −Rnom: m ax. ±5% or 1%
R<10Ω:0.1V
10 Ω≤R<100 Ω: 0.3 V
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
1MΩ: 50 V
4.18 20 (Tb) resistance to
soldering heat unmounted chips; 10 ±1 s; 260 ±5°C:
1Ω≤R≤1MΩ∆R/R max.: ±(1% +0.05 Ω)
4.29 45 (Xa) component
solvent
resistance
isopropyl alcohol; H2O no visible damage
4.17 20 (Ta) solderability unmounted chips completely immersed
for 2 ±0.5 s in a solder bath at 235 ±2°Cgood tinning (≥95% covered);
no damage
4.7 v oltage proof on
insulation 200 V (RMS) during 1 minute no breakdown or flashover
4.13 short time
overload room temperature;
dissipation 6.25 ×Pn;
5 s (voltage not more than 2 ×Vmax)
∆R/R max.: ±(1% +0.05 Ω)
2001 May 28 Rev.15 11 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
4.33 bending resistor s mounted on a 90 mm glass
epoxy resin PCB (FR4), bendi ng: 2 mm no damage
∆R/R max.: ±(1% +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.: ±(1.0% +0.05 Ω)
4.6.1.1 insulation
resistance 100 V (DC) after 1 minute Rins min.: 1000 MΩ
4.24.2 3 (Ca) damp heat
(steady state) 56 days; 40 ±2°C; 93 +2/−3% RH;
loaded wi th 0.01Pn
no visible damage
∆R/R max.: ±(3% +0.1 Ω)
4.25.1 endurance 1000 +48/−0hours; 70±2°C;
loaded wi th Pn or Vmax;
1.5 hours on and 0.5 hours off:
no visible damage
1Ω≤R≤1 MΩ∆R/R max.: ±(3% +0.1 Ω)
4.23.2 27 (Ba) endurance at
upper category
temperature
1000 +48/−0 hours; no load no visible damage
∆R/R max.: ±(3% +0.1 Ω)
4.8.4.2s‘temperature
coefficient at 20/LCT/20 °C and 20/UCT/20 °C:
1Ω≤R<10 Ω∆R/R max.: ±200 ×10−6/K
10 Ω≤R∆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) 16 hours steam or 16 hours at 155 °C;
unmounted chips completely immersed
for 2 ±0.5 s in a solder bath at 235 ±2°C
good tinning (≥95% covered);
no damage
Other applicable tests
leaching unmounted chips 60 ±1s; 260±5°C good tinning; no leaching
IEC
60115-8
CLAUSE
IEC
60068-2
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
2001 May 28 Rev.15 12 www.phycomp-components.com
Phycomp Product specification
Power chip resistors
size 1218 PRC201
5%; 1%
REVISION HISTORY
Revision Date Change
Notification Description
Rev. 14 2001 Apr 27 –- Converted to Phycomp brand
Rev.15 2001 May 28 EBB-0176-
2000005/FD
2000 May 15
- 2% range discontinued
