Thick Film High
Power Chip Resistor
WHPC Series
Double the standard power for size
Inverse terminated versions
Small footprint
Excellent pulse performance
RoHS compliant
AEC-Q200Qualied
Thick Film High Power Chip Resistor
WHPC Series
Double the standard power for size
Inverse terminated versions
Small footprint
Excellent pulse performance
RoHS compliant
AEC-Q200 Qualified
Electrical Data
1206 2010 0612 1020 1218 1225
Power rating @70C watts
0.5
1.0 0.5 1.0 1.5
Resistance range ohms 1R0 to 10M 1R0 to 1M
10R to
1M
Limiting element voltage volts 200
Standard values E24 (1% & 5%) & E96 (1%)
Tolerance % 1, 5 ≤10R:5 >10R:1, 5 1, 5
TCR(-55ºC to 155ºC) ppm/C
≤10R: 200
>10R-1M0: 100
>1M0: 200
<10R: 400
10R-100R: 200
>100R: 100
Ambient temperature range C
-55 to +155
Pad / trace area * mm² 50 60 40 50 50 90
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
Physical Data
Dimensions (mm) & weight (mg)
L W T A C wt.
1206
3.1±0.1 1.55±0.1 0.55±0.1 0.5±0.2 0.5±0.25 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
4.6±0.15 3.1±0.1 0.55±0.1 0.4±0.2 0.45±0.2 27
1225
6.25±0.15 3.1±0.15 0.55±0.1 0.65±0.2 0.45±0.2 39
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.
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
Resistors
03.20
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
AllpartsarePb-freeandcomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)AllpartsarePb-freeandcomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)
WHPC Series
Thick Film High Power Chip Resistor
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
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 decima
l 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
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.
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
Protection
Resistor
Overglaze
Top Electrode
Bottom Electrode
Bridge Electrode
Wraparound Termination
Substrate
Marking
AEC-Q200
Table 7
Method
Max.
Typ.
ref.
Tol:
F
J
3
MIL-STD-202 Method 108
ΔR%
1
3
0.15
4
JESD22 Method JA-104
ΔR%
0.5
+0.05Ω
1.5
+0.1Ω
0.1
6
MIL-STD-202 Method 106
ΔR%
2
+0.1Ω
3
+0.1Ω
0.05
7
MIL-STD-202 Method 103
ΔR%
2
3
+0.1Ω
0.2
8
MIL-STD-202 Method 108
ΔR%
2
3
+0.1Ω
0.2
14
MIL-STD-202 Method 204
ΔR%
0.5
+0.05Ω
1
+0.05Ω
0.1
15
MIL-STD-202 Method 210
ΔR%
1
0.05
16
MIL-STD-202 Method 107
ΔR%
0.5
1
0.05
18
J-STD-002
>95% coverage
21
AEC-Q200-005
ΔR%
1
0.25
22
AEC-Q200-006
no damage
Climatic *
Category 55/155/42
ΔR%
2
3
0.2
Short Term Overload *
6.25 x Pr or 2 x LEV for 5s
ΔR%
1.5
2
+0.1Ω
0.15
Pulse Loading Capability
10,000 pulses @70°C
See graphs below
ΔR%
2
0.5
Insulation Resistance *
400V for 1 minute
≥10G
1. Full AEC-Q200 qualification applies to 1206 and 2010 sizes. Other sizes received the tests marked *.
03.20
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
Thick Film High
Power Chip Resistor