CRCW....-37 e3 Lead (Pb)-Free Thick Film, Rectangular

CRCW....-37 e3
Vishay
Lead (Pb)-Free Thick Film, Rectangular Chip Resistors
FEATURES
• High pulse performance (time/power)
• Metal glaze on high quality ceramic
• Protective overglaze
• Lead (Pb)-free solder contacts on Ni barrier layer
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
STANDARD ELECTRICAL SPECIFICATIONS
SIZE
MODEL
INCH METRIC
POWER RATING
P70 °C
W
RATED
VOLTAGE
V
CRCW1206-37
1206
3216
0.25
200
CRCW1210-37
1210
3225
0.33
200
CRCW2512-37
2512
6332
1.0
500
TEMPERATURE TOLERANCE RESISTANCE
RANGE
E-SERIES
COEFFICIENT
%
Ω
ppm/K
± 200
± 10
5R1 to 10M
E24
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
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
CRCW1206-37
CRCW1210-37
CRCW2512-37
Rated Dissipation at P70 (2)
W
0.25
0.33
1.0
Rated Voltage Umax. AC/DC
V
200
200
500
Insulation Voltage Uins (1 Min)
V
Thermal Resistance (1)
K/W
Category Temperature Range
°C
Weight
mg
> 300
≤ 220
≤ 140
≤ 65
- 55 to + 155
10
16
40.5
Notes:
(1) For
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: [email protected]
Document Number: 20045
Revision: 28-May-08
CRCW....-37 e3
Lead (Pb)-Free Thick Film, Rectangular Chip Resistors
Vishay
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: CRCW120622K0KNEA37 (1)
C
R
C
W
1
2
0
6
2
2
K
0
K
N
E
A
3
7
MODEL
VALUE
TOLERANCE
TCR
PACKAGING (2)
SPECIAL
CRCW1206
CRCW1210
CRCW2512
R = Decimal
K = Thousand
M = Million
K = ± 10 %
N = ± 200 ppm/K
EA
EB
EC
EG
EH
EI
EL
Up to 2 digits
37 = Non-trimmed
ET1
e3
PACKAGING (2)
LEAD (Pb)-FREE
ET1
ET5
ET6
E67
E82
EG1
E20
e3 = Pure tin
termination
finish
PRODUCT DESCRIPTION: D25/CRCW1206-37 200 22K0 10 % ET1 e3
D25/CRCW1206
200
MODEL
TCR
CRCW1206
CRCW1210
CRCW2512
22K0
10 %
RESISTANCE VALUE TOLERANCE VALUE
10R = 10 Ω
562R = 562 Ω
10K = 10 kΩ
1M = 1 MΩ
± 200 ppm/K
± 10 %
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
CRCW1206-37
CRCW1210-37
CRCW2512-37
Document Number: 20045
Revision: 28-May-08
TAPE
WIDTH
8 mm
12 mm
12 mm
DIAMETER
PITCH
PIECES/
REEL
PART NUMBER
PRODUCT DESC.
PAPER
BLISTER
PAPER
BLISTER
EI
ET1
EG1
180 mm/7"
4 mm
5000
EA
285 mm/11.25"
4 mm
10 000
EB
330 mm/13"
4 mm
20 000
EC
180 mm/7"
4 mm
5000
EA
ET1
285 mm/11.25"
4 mm
10 000
EB
ET5
330 mm/13"
4 mm
20 000
EC
ET6
8 mm
2000
EG
E67
4 mm
4000
EH
E82
ET5
EL
ET6
E20
180 mm/7"
For technical questions, contact: [email protected]
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CRCW....-37 e3
Lead (Pb)-Free Thick Film, Rectangular Chip Resistors
Vishay
DIMENSIONS
SIZE
INCH METRIC
SOLDER PAD DIMENSIONS [in millimeters]
DIMENSIONS [in millimeters]
L
3.2
+ 0.10
- 0.20
REFLOW SOLDERING
WAVE SOLDERING
W
H
T1
T2
a
b
l
a
b
l
1.6 ± 0.15
0.55 ± 0.05
0.45 ± 0.2
0.4 ± 0.2
0.9
1.7
2.0
1.1
1.7
2.3
1206
3216
1210
3225
3.2 ± 0.2
2.5 ± 0.2
0.55 ± 0.05
0.45 ± 0.2
0.4 ± 0.2
0.9
2.5
2.0
1.1
2.5
2.2
2512
6332
6.3 ± 0.2
3.15 ± 0.15
0.6 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
1.0
3.2
5.2
1.2
3.2
5.2
Pulse Power (W)
FUNCTIONAL PERFORMANCE
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)
Rated Power in %
Maximum pulse dissipation as a function of the pulse duration for one.pulse loading of CRCW...-37 resistors
120
100
80
60
40
20
0
- 55
Derating
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3
- 25
0
25
50
75
70
100
125
155 175
Ambient Temperature in °C
For technical questions, contact: [email protected]
Document Number: 20045
Revision: 28-May-08
CRCW....-37 e3
Lead (Pb)-Free Thick Film, Rectangular Chip Resistors
Vishay
TEST PROCEDURES AND REQUIREMENTS
EN 60115-1
REQUIREMENTS
TEST (clause)
CONDITIONS OF TEST
STABILITY CLASS 2 OR BETTER
Stability for product types:
5.1 Ω to 10 MΩ
CRCW....-37
Resistance
(4.5)
-
± 10 %
20/- 55/20 °C and
20/125/20 °C
± 200 ppm/K
U = 2.5 x (P70 x R)1/2
≤ 2 x Umax.;
Duration: according the style
± (0.25 % R + 0.05 Ω)
Aging 4 h at 155 °C, dryheat
solder bath method; 235 °C; 2 s
visual examination
Good tinning (≥ 95 % covered)
no visible damage
Resistance to soldering heat (4.18.2)
Solder bath method;
(260 ± 5) °C; (10 ± 1) s
± (0.25 % R + 0.05 Ω)
Rapid change of temperature (4.19)
30 min at LCT = - 55 °C;
30 min at UCT = 125 °C; 5 cycles
± (0.25 % R + 0.05 Ω)
(40 ± 2) °C; 56 days;
(93 ± 3) % RH
± (1 % R + 0.05 Ω)
Climatic sequence
(4.23)
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 = (P70 × R)1/2
U = Umax.; whichever is less severe
± (1 % R + 0.05 Ω)
Endurance at 70 °C
(4.25.1)
U = (P70 × R)1/2
U = Umax.; whichever is less severe
1.5 h ON; 0.5 h OFF;
70 °C; 1000 h
± (1 % R + 0.05 Ω)
Extended endurance
(4.25.1.8)
Duration extended to 8000 h
± (2 % R + 0.1 Ω)
UCT = 125 °C; 1000 h
± (1 % R + 0.05 Ω)
Temperature coefficient
(4.8.4.2)
Overload
(4.13)
Solderability
(4.17.5)
Damp heat, steady state
(4.24)
Endurance at upper category temperature
(4.25.3)
APPLICABLE SPECIFICATIONS
• EN 60115-1
Generic Specification
• EN 140400
Sectional Specification
• EN 140401-802
Detail Specification
• IEC 60068-2-X
Variety of environmental test procedures
• IEC 60286-3
Packaging of SMD components
Document Number: 20045
Revision: 28-May-08
For technical questions, contact: [email protected]
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Disclaimer
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Revision: 02-Oct-12
1
Document Number: 91000