Resistors
Thick Film High Power
Chip Resistor
WHPC Series
Thick Film High Power Chip Resistor
WHPC
the standard power for size
Double
Series
Inverse terminated versions
Double the standard power for size
Small footprint
Inverse terminated versions
Excellent pulse performance
Small footprint
Excellent pulse
RoHS compliant
performance
RoHS compliant
AEC-Q200 Qualified
AEC-Q200 Qualified
All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Power rating @70C
Resistance range
Limiting element voltage
Standard values
Tolerance
TCR(-55ºC to 155ºC)
Ambient temperature range
Pad / trace area *
watts
ohms
volts
%
ppm/C
C
mm²
1206
0.5
2010
1.0
0612
0.5
1020
1.0
1218
1R0 to 10M
1R0 to 1M
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
200
E24 (1% & 5%) & E96 (1%)
1, 5
≤10R:5
>10R:1, 5
1, 5
≤10R:
200
<10R: 400
>10R-1M0: 100
10R-100R: 200
>1M0: 200
>100R: 100
-55 to +155
50
60
40
50
50
90
1225
1.5
10R to
1M
Physical Data
Dimensions (mm) & weight (mg)
L
W
1206
3.1±0.1
1.55±0.1
T
0.55±0.1
A
0.5±0.2
C
0.5±0.25
wt.
9
2010
5.0±0.2
2.5±0.15
0.55±0.1
0.5±0.2
0.6±0.25
25
0612
3.2±0.15
1.6±0.15
0.55±0.1
0.3±0.2
0.45±0.2
10
1020
5.0±0.15
2.5±0.15
0.55±0.1
0.4±0.2
0.6±0.2
26
1218
1225
4.6±0.15
3.1±0.1
0.55±0.1
0.4±0.2
0.45±0.2
27
6.25±0.15
3.1±0.15
0.55±0.1
0.65±0.2
0.45±0.2
39
General Note
General Note
reserves the right to make changes in product specification without notice or liability
Welwyn Components
TT Electronics reserves the right to make changes in
is considered accurate at time
notice or
to print.
All information is subject to Welwyn’s own data and
product specification without
of going
liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181
Facsimile: +44 (0) 1670 829465
Email: info@welwyn-tt.com
Website: www.welwyn-tt.com
06.18
Thick Film High
Power
Film High Power Chip Resistor
Thick
Chip Resistor
WHPC Series
WHPC Series
Construction
WHPC 1206 and 2010 Size
Thick-film electrodes, resistor material, overglaze
and organic protection are screen printed on an
alumina substrate. Wrap-around terminations have
an electroplated nickel barrier and matt tin plating;
this ensures excellent leach resistance properties
and solderability.
Marking
Substrate
Protection
Overglaze
Resistor
Wraparound Termination
Top Electrode
Bottom Electrode
Bridge Electrode
Marking
5% parts are marked with 3 digits. The first two digits are significant figures and the third digit is the number of
zeros to follow. The letter “R” represents a decimal point.
1% parts have four digits, the first three digits are significant figures and the fourth digit is the number of zeros to
follow. The letter “R” represents a decimal point.
Solvent Resistance
The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits.
Performance Data
AEC-Q200
Table 7
ref.
Test
Method
Max.
ΔR%
1
3
ΔR%
0.5
+0.05Ω
1.5
+0.1Ω
ΔR%
2
+0.1Ω
3
+0.1Ω
ΔR%
2
3
+0.1Ω
ΔR%
2
3
+0.1Ω
ΔR%
0.5
+0.05Ω
1
+0.05Ω
ΔR%
1
ΔR%
0.5
1
>95% coverage
ΔR%
1
no damage
ΔR%
2
3
ΔR%
1.5
2
+0.1Ω
ΔR%
2
≥10G
3
High Temp. Exposure * MIL-STD-202 Method 108
4
Temperature Cycling JESD22 Method JA-104
6
Moisture Resistance MIL-STD-202 Method 106
7
Biased Humidity * MIL-STD-202 Method 103
8 Operational Life (Cyclic Load) * MIL-STD-202 Method 108
14
Vibration MIL-STD-202 Method 204
15 Resistance to Soldering Heat * MIL-STD-202 Method 210
16
Thermal Shock * MIL-STD-202 Method 107
18
Solderability *
J-STD-002
21
Board Flex *
AEC-Q200-005
22
Terminal Strength
AEC-Q200-006
Climatic *
Category 55/155/42
Short Term Overload * 6.25 x Pr or 2 x LEV for 5s
10,000 pulses @70°C
Pulse Loading Capability
See graphs below
Insulation Resistance *
400V for 1 minute
Tol:
F
J
Typ.
0.15
0.1
0.05
0.2
0.2
0.1
0.05
0.05
0.25
0.2
0.15
0.5
1. Full AEC-Q200 qualification applies to 1206 and 2010 sizes. Other sizes received the tests marked *.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability
General Note
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
Telephone: +44 (0) 1670 822181
Facsimile: +44 (0) 1670 829465
Email: info@welwyn-tt.com
Website: www.welwyn-tt.com
TT Electronics reserves the right to make changes in product specification without notice or liability.
Welwyn
Components Limited
own data and is considered accurate at time of going to print.
All information is subject to TT Electronics’
Bedlington, Northumberland NE22 7AA, UK
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.18
Thick Film High
Thick Film High Power Chip Resistor
Power Chip Resistor
WHPC Series
WHPC Series
Pulse Loading Capability
Test condition: 10,000 pulses at 70ºC. Single pulse condition has mean power
≤
10% of Pr. Continuous pulse
condition has mean power = Pr.
100
WHPC 1206
Single pulse
1000
Continuous pulse
WHPC 2010
Single pulse
Pulse power (W)
Pulse power (W)
Continuous pulse
100
10
10
1
1.E-05
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
Pulse duration (s)
1
1.E-05
1.E-04
Pulse duration (s)
1.E-03
1.E-02
1.E-01
1.E+00
De-Rating Curve
WHPC All Sizes
100
120
Temperature Rise (hotspot)
WHPC 1206 and 2010
80
70
60
50
40
30
20
10
0
0
80
60
40
20
0
-55
-20
Temperature Rise (°C) .
Rated power (%)
1206
2010
0
70
Ambient temperature (ºC)
15
50
85
120
155
0.2
0.4
0.6
0.8
1
Power Dissipation (W)
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
General Note
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
TT Electronics reserves the
822181
Facsimile: +44
in product
829465
Email: info@welwyn-tt.com
Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
right to make changes
(0) 1670
specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.18
Thick Film High
Power Chip Resistor
Thick Film High Power Chip Resistor
WHPC Series
WHPC Series
Packaging
Tape dimensions in mm
Type
1206
2010
0612
1020
1218
1225
W
8.0
12.0
8.0
12.0
12.0
12.0
0.3
P1
0.1
P0
0.1
P2
0.05
D0
0.1
D1
1.0
1.5
N.A
N.A
1.5
1.5
0.2
E
1.75
1.75
1.75
1.75
1.75
1.75
0.1
F
0.05
A0
1.9
2.79
2.0
2.8
3.5
3.5
0.2
B0
3.5
5.5
3.60
5.40
4.80
6.70
0.2
K0
0.85
1.2
0.81
0.75
1.0
1.0
0.1
A
9
13.0
10.0
13.8
13.8
13.8
1
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
2.0
2.0
2.0
2.0
2.0
2.0
1.5
1.5
1.5
1.5
1.5
1.5
3.5
5.5
3.5
5.5
5.5
5.5
Ordering Procedure
Example: WHPC1206 at 10 kilohms and 1% tolerance on a reel of 5000 pieces -
WHPC1206–10KFT5
Type
Size
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
J
1%
5%
Packing
T5
T4
Tape
1206, 0612
2010, 1020, 1218, 1225
5000/reel
4000/reel
Standard
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
08.10
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181
Facsimile: +44 (0) 1670 829465
Email: info@welwyn-tt.com
Website: www.welwyn-tt.com
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.18
