CRCW....-37
Vishay
Lead (Pb)-Bearing Thick Film, Rectangular Chip Resistors
FEATURES
•
High pulse performance (time/power)
•
Metal glaze on high quality ceramic
•
Protective overglaze
•
Lead (Pb)-bearing solder contacts on Ni barrier layer
STANDARD ELECTRICAL SPECIFICATIONS
SIZE
MODEL
INCH METRIC
CRCW1206-37
CRCW1210-37
CRCW2512-37
Notes:
•
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
•
Marking and packaging: see appropriate catalog or web pages
•
Power rating depends on the max. temperature at the solder point, the component placement density and the substrate material
1206
1210
2512
3216
3225
6332
POWER RATING
P
70 °C
W
0.25
0.33
1.0
RATED
VOLTAGE
V
200
200
500
± 200
± 10
5R1 to 10M
E24
TEMPERATURE TOLERANCE RESISTANCE
RANGE
E-SERIES
COEFFICIENT
%
Ω
ppm/K
TECHNICAL SPECIFICATIONS
PARAMETER
Rated Dissipation at
P
70 (2)
Rated Voltage
U
max.
AC/DC
Insulation Voltage
U
ins
(1 Min)
Thermal Resistance
(1)
Category Temperature Range
Weight
Notes:
(1)
For
UNIT
W
V
V
K/W
°C
mg
CRCW1206-37
0.25
200
CRCW1210-37
0.33
200
> 300
CRCW2512-37
1.0
500
≤
220
≤
140
- 55 to + 155
≤
65
10
16
40.5
size 1206 the measuring conditions are in acc. to EN 140401-802. For all other sizes the result depends on the solder pad dimensions.
(2)
The
power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the
printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature of 155 °C is not exceeded.
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For technical questions, contact: filmresistors.thickfilmchip@vishay.com
Document Number: 20044
Revision: 28-May-08
CRCW....-37
Lead (Pb)-Bearing Thick Film, Rectangular Chip Resistors
Vishay
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: CRCW120622K0KNTA37
(1)
C
MODEL
R
C
W
1
2
0
6
2
2
K
TCR
0
K
N
T
A
3
7
SPECIAL
VALUE
R
= Decimal
K
= Thousand
M
= Million
TOLERANCE
K
= ± 10 %
PACKAGING
(2)
TA
TB
TC
TG
TH
TI
TL
CRCW1206
CRCW1210
CRCW2512
N
= ± 200 ppm/K
37
= Non-trimmed
PRODUCT DESCRIPTION: CRCW1206-37 223 K 200 RT1
CRCW-37
MODEL
CRCW1206-37
CRCW1210-37
CRCW2512-37
223
RESISTANCE VALUE
685 = 6.8 MΩ
224 = 220 kΩ
K
TOLERANCE
K = ± 10 %
200
TCR
± 200 ppm/K
200
PACKAGING
(2)
RT1
RT5
RT6
R67
R82
RG1
R20
Notes:
(1)
Preferred
(2)
Please
way for ordering products is by use of the PART NUMBER
refer to table PACKAGING, see below
PACKAGING
REEL
PACKAGING CODE
MODEL
TAPE
WIDTH
DIAMETER
PITCH
PIECES/
REEL
PART NUMBER
PAPER
180 mm/7"
D25/CRCW1206-37
8 mm
285 mm/11.25"
330 mm/13"
180 mm/7"
CRCW1210-37
12 mm
285 mm/11.25"
330 mm/13"
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
8 mm
CRCW2512-37
12 mm
180 mm/7"
4 mm
4000
TH
R82
5000
10 000
20 000
5000
10 000
20 000
2000
TA
TB
TC
TA
TB
TC
TG
TL
BLISTER
TI
PRODUCT DESC.
PAPER
RT1
RT5
RT6
RT1
RT5
RT6
R67
R20
BLISTER
RG1
Document Number: 20044
Revision: 28-May-08
For technical questions, contact: filmresistors.thickfilmchip@vishay.com
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CRCW....-37
Vishay
DIMENSIONS
Lead (Pb)-Bearing Thick Film, Rectangular Chip Resistors
SOLDER PAD DIMENSIONS
[in millimeters]
SIZE
DIMENSIONS
[in millimeters]
REFLOW SOLDERING
INCH
1206
1210
2512
METRIC
3216
3225
6332
3.2
L
+ 0.10
- 0.20
WAVE SOLDERING
a
1.1
1.1
1.2
b
1.7
2.5
3.2
l
2.3
2.2
5.2
W
1.6 ± 0.15
2.5 ± 0.2
3.15 ± 0.15
H
0.55 ± 0.05
0.55 ± 0.05
0.6 ± 0.1
T1
0.45 ± 0.2
0.45 ± 0.2
0.6 ± 0.2
T2
0.4 ± 0.2
0.4 ± 0.2
0.6 ± 0.2
a
0.9
0.9
1.0
b
1.7
2.5
3.2
l
2.0
2.0
5.2
3.2 ± 0.2
6.3 ± 0.2
FUNCTIONAL PERFORMANCE
Pulse Power (W)
10 000
1000
100
10
1
10
-1
10
-2
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
1
10
100
Pulse Duration (s)
Maximum pulse dissipation as a function of the pulse duration for one.pulse loading of CRCW...-37 resistors
Rated Power in
%
120
100
80
60
40
20
0
- 55
- 25
0
25
50
Derating
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3
75
70
100
125
155 175
Ambient Temperature in °C
For technical questions, contact: filmresistors.thickfilmchip@vishay.com
Document Number: 20044
Revision: 28-May-08
CRCW....-37
Lead (Pb)-Bearing Thick Film, Rectangular Chip Resistors
Vishay
TEST PROCEDURES AND REQUIREMENTS
EN 60115-1
REQUIREMENTS
TEST (clause)
CONDITIONS OF TEST
STABILITY
CLASS 2
OR BETTER
5.1
Ω
to 10 MΩ
± 10 %
± 200 ppm/K
±
(0.25
%
R
+ 0.05
Ω)
Stability for product types:
CRCW....-37
Resistance
(4.5)
Temperature coefficient
(4.8.4.2)
Overload
(4.13)
Solderability
(4.17.5)
Resistance to soldering heat (4.18.2)
Rapid change of temperature (4.19)
Damp heat, steady state
(4.24)
-
20/- 55/20 °C and
20/125/20 °C
U
= 2.5 x (P
70
x
R)
1/2
≤
2 x
U
max.
;
Duration: according the style
Aging 4 h at 155 °C, dryheat
solder bath method; 235 °C; 2 s
visual examination
Solder bath method;
(260 ± 5) °C; (10 ± 1) s
30 min at LCT = - 55 °C;
30 min at UCT = 125 °C; 5 cycles
(40 ± 2) °C; 56 days;
(93 ± 3) % RH
16 h at UCT = 125 °C; 1 cycle at 55 °C;
2 h at LCT = - 55 °C;
1 h/1 kPa at 15 °C to 35 °C;
5 cycles at 55 °C
U
= (P
70
×
R)
1/2
U
=
U
max.
; whichever is less severe
U
= (P
70
×
R)
1/2
U
=
U
max.
; whichever is less severe
1.5 h ON; 0.5 h OFF;
70 °C; 1000 h
Duration extended to 8000 h
UCT = 125 °C; 1000 h
Good tinning (≥ 95 % covered)
no visible damage
±
(0.25
%
R
+ 0.05
Ω)
±
(0.25
%
R
+ 0.05
Ω)
±
(1
%
R
+ 0.05
Ω)
Climatic sequence
(4.23)
±
(1
%
R
+ 0.05
Ω)
Endurance at 70 °C
(4.25.1)
Extended endurance
(4.25.1.8)
Endurance at upper category temperature
(4.25.3)
±
(1
%
R
+ 0.05
Ω)
± (2 %
R
+ 0.1
Ω)
±
(1
%
R
+ 0.05
Ω)
APPLICABLE SPECIFICATIONS
• EN 60115-1
• EN 140400
• EN 140401-802
• IEC 60068-2-X
• IEC 60286-3
Generic Specification
Sectional Specification
Detail Specification
Variety of environmental test procedures
Packaging of SMD components
Document Number: 20044
Revision: 28-May-08
For technical questions, contact: filmresistors.thickfilmchip@vishay.com
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Revision: 02-Oct-12
1
Document Number: 91000
