Thick Film High
Power Chip Resistor
WHPC Series
Features
Thick Film High Power Chip Resistor
Double
WHPC
the standard power for size
Series
Inverse terminated versions
Double the standard power for size
Small footprint
Inverse terminated versions
Excellent pulse performance
Small footprint
Extra-high-power range
Excellent pulse performance
AEC-Q200 Qualified
RoHS compliant
AEC-Q200 Qualified
All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Standard range
Power rating @70C
watts
ohms
volts
%
ppm/C
C
mm²
1206
0.5
2010
1.0
0612
0.5
1020
1.0
1218
Resistance range
Limiting element voltage
Standard values
Tolerance
TCR(-55ºC to 155ºC)
Ambient temperature range
Pad / trace area *
Extra-high-power
Physical Data
range
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
0508X
0612X
1.5
1020X
2
1225
1.5
10R to
1M
Power rating
(mm) & weight (mg)
Dimensions
@ 70°C
L
W
Resistance range
watts
1
T
0.55±0.1
ohms
A
volts
0.5±0.2
%
C
0.5±0.25
<10: 150
0.6±0.25
≥10: 100
wt.
1R0 to 1M
Limiting element voltage
1206
3.1±0.1
1.55±0.1
Standard values
Tolerance
TCR (-55°C to 155°C)
2.5±0.15
2010
5.0±0.2
Ambient temperature range
Pad/trace area*
0612
3.2±0.15
200
9
E24 (1% & 5%) &E96 (1%)
0.5, 1, 5
ppm/°C
0.55±0.1
0.5±0.2
°C
25
100
-55 to +155
<10: 150
≥10: 100
mm²
50
60
80
1.6±0.15
0.55±0.1
pad
0.3±0.2
trace area for each termination for rated power dissipation on FR4 PCB
0.45±0.2
10
*Recommended minimum
& adjacent
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
Welwyn Components reserves the right to make changes in product specification without notice or liability
TT Electronics 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.
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
10.21
Thick Film High
Power Chip Resistor
1020
1225
1R0 to 1M
1218
1M
1.0
1.5
200
10R to
Standard values
E24 (1% & 5%) & E96 (1%)
Resistance range
ohms
1R0 to 10M
1R0 to 1M
1M
Tolerance
%
1, 5
≤10R:5
>10R:1, 5
1, 5
Limiting element voltage
volts
200
≤10R:
200
<10R: 400
TCR(-55ºC to 155ºC)
ppm/C
Standard values
E24 (1% & 5%) & E96 (1%)
>10R-1M0: 100
10R-100R: 200
Tolerance
%
1, 5 200
≤10R:5
>10R:1,>100R: 100 1, 5
5
>1M0:
≤10R:
200
<10R: 400
TCR(-55ºC temperature
ppm/C
C
WHPC Series
155ºC) range
-55 to +155
Ambient to
>10R-1M0: 100
10R-100R: 200
Pad / trace area *
mm²
50
60
40
50
50
90
>1M0: 200
for each termination for
>100R: 100
*Recommended minimum pad & adjacent trace area
rated power dissipation on FR4 PCB
-55 to +155
Ambient temperature range
C
Physical
area *
Pad / trace
Data
mm²
50
60
40
50
50
90
Resistance range
Power rating @70C
Limiting element voltage
ohms
watts
volts
Dimensions (mm) & weight (mg)
Dimensions (mm) & weight (mg)
L
W
1206
2010
1R0 to 10M
1.0
0.5
0612
0.5
Physical Data
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
Physical Data
T
T
0.55±0.1
T
A
A
0.5±0.2
A
C
wt.
Dimensions
L
(mm) & weight (mg)
W
1206
3.1±0.1
1.55±0.1
L
W
C
Wt.
0.5±0.25 wt. 9
C
1206
3.1±0.1
1.55±0.1
0.55±0.1
0.5±0.2
0.5±0.25
9
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
2010
5.0±0.2
2.5±0.15
0.55±0.1
0.5±0.2
0.6±0.25
25
2010
5.0±0.2
2.5±0.15
0.55±0.1
0.55±0.1
0.3±0.15
0.5±0.2
0.3±0.15
0.6±0.25
25
0508X
2.0±0.1
1.25±0.1
5
0612
3.2±0.15
1.6±0.15
0.55±0.1
0.3±0.2
0.45±0.2
10
0612
3.2±0.15
1.6±0.15
0.55±0.1
0.3±0.2
0.45±0.2
10
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
1.55±0.1
2.5±0.15
0.55±0.1 0.25±0.15 0.4±0.15
0.55±0.1
0.4±0.2
0.6±0.2
9
26
0612X
3.0±0.15
1020
1020
5.0±0.15
5.0±0.15
2.5±0.15
2.5±0.15
0.55±0.1
0.55±0.1
0.4±0.2
0.4±0.2
0.6±0.2
0.6±0.2
26
26
1218
4.6±0.15
3.1±0.1
0.55±0.1
0.4±0.2
0.45±0.2
27
Thick Film High Power Chip Resistor
WHPC Series
1225
6.25±0.15
1225
General Note
1020X
5.0±0.1
2.45±0.15 0.60±0.15 0.35±0.2
0.7±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
1218
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
3.1±0.15
0.55±0.1
0.55±0.1
0.65±0.2
0.45±0.2
0.45±0.2
0.65±0.2
39
39
Construction
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
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.
Thick-film electrodes, resistor material, overglaze and organic protection are screen printed on an alumina substrate.
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
Wrap-around
1670 822181
Facsimile: +44 (0) 1670 829465
Email: info@welwyn-tt.com
Website:
matt tin plating; this ensures excellent leach
Telephone: +44 (0)
terminations have an electroplated nickel barrier and
www.welwyn-tt.com
resistance properties and solderability.
Telephone: +44 (0) 1670 822181
to make changes in product specification without notice or liability
Welwyn Components reserves the rightFacsimile: +44 (0) 1670 829465
Email: info@welwyn-tt.com
Website: www.welwyn-tt.com
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
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
. (+0.05Ω except where stated)
Range:
3
High Temp. Exposure * MIL-STD-202 Method 108 ±
ΔR
%
4
Temperature Cycling JESD22 Method JA-104 ±
ΔR%
6
Moisture Resistance MIL-STD-202 Method 106 ±
ΔR%
General Note
7
Biased Humidity * MIL-STD-202 Method 103 ±
ΔR%
TT Electronics reserves the right to make changes in product specification without notice or liability.
8 Operational Life (Cyclic Load) * MIL-STD-202 Method 108 ±
ΔR%
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
14
Vibration MIL-STD-202 Method 204 ±
ΔR%
©
15
Electronics plc
to Soldering Heat * MIL-STD-202 Method 210 ±
ΔR%
TT
Resistance
16
Thermal Shock * MIL-STD-202 Method 107 ±
ΔR%
18
Solderability *
J-STD-002
Standard Standard
Extra-high-
power
1%
5%
Typ.
0.15
1
1.5
+0.1Ω
0.1
0.5
2
+0.1Ω
3
+0.1Ω
0.05
N/A
2
BI Technologies IRC Welwyn
3
+0.1Ω
1+0.1Ω
0.2
2
3
+0.1Ω
1+0.1Ω
0.2
0.5
1
0.1
0.5
www.ttelectronics.com/resistors
1
0.05
0.5
0.5
1
0.05
N/A
10.21
>95% coverage
1
0.5
3
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
three digits are
Thick
have four
High
the first decimal point. significant figures and the fourth digit is the number of zeros to
Film
“R”digits,
follow. The letter
represents a
Power
Resistance
Chip Resistor
Solvent
WHPC Series
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
. (+0.05Ω except where stated)
Range:
Thick Film High Power Chip Resistor
WHPC Series
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
±
ΔR
%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
±
ΔR%
Standard Standard
Extra-high-
power
1%
5%
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
1.5
+0.1Ω
0.5
2
+0.1Ω
3
+0.1Ω
N/A
2
3
+0.1Ω
1+0.1Ω
2
3
+0.1Ω
1+0.1Ω
0.5
1
0.5
1
0.5
0.5
1
N/A
>95% coverage
1
1
no damage
2
3
N/A
1.5
2
+0.1Ω
1
2
≥10G
N/A
1
0.5
3
1. Full AEC-Q200 qualification applies to 1206 and 2010 sizes, 0508X, 0612X & 1020X. Other sizes received the tests marked *.
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
General Note
WHPC 1206
Single pulse
1000
WHPC 2010
Single pulse
Pulse power (W)
Pulse power (W)
Welwyn Components reserves the right to make changes in product specification without notice or liability
Continuous pulse
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
Continuous pulse
100
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
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
80
100
70
60
General Note
80
50
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.
40
60
30
© TT Electronics plc
40
20
0
70
10
20
0
120
Temperature Rise (hotspot)
WHPC 1206 and 2010
Temperature Rise (°C) .
Rated power (%)
1206
BI Technologies IRC Welwyn
2010
www.ttelectronics.com/resistors
10.21
Pulse
Pulse
1.E-01
1.E+00
10
Thick Film High
1
Power Chip Resistor
1.E-05
1.E-04
1.E-03
1.E-02
WHPC Series
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
Temperature Rise (°C) .
Rated power (%)
1206
2010
40
Thick Film High Power
70
Chip Resistor
0
WHPC Series
0
-55
-20
20
Packaging
Ambient temperature (ºC)
15
50
85
120
155
0.2
0.4
0.6
0.8
1
Power Dissipation (W)
Tape dimensions in mm
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability
Type
All information is subject to Welwyn’s own data and is considered accurate
±0.05
of going to print.
at time
±
0.3
±
0.1
±
0.1
±
0.1
±
0.2
W
P1
P0
P2
D0
D1
E
±
0.1
F
±
0.05
A0
1.9
2.79
1.6
2.0
2.8
3.5
3.5
±
0.2
B0
3.5
5.5
2.4
3.60
5.40
4.80
6.70
±
0.2
K0
0.85
1.2
0.85
0.81
0.75
1.0
1.0
±
0.1
A
9
13.0
12.5
10.0
13.8
13.8
13.8
±
1
1.0
1.75
Telephone:
2010
1670 822181
12.0
+44 (0)
Facsimile: +44 (0) 1670 829465
Email:
2.0
info@welwyn-tt.com
Website: www.welwyn-tt.com
4.0
4.0
1.5
1.5
1.75
8.0
4.0
4.0
2.0
1.5
N.A
1.75
0508
0612
8.0
4.0
4.0
2.0
1.5
N.A
1.75
1020
12.0
4.0
4.0
2.0
1.5
N.A
1.75
1218
12.0
4.0
4.0
2.0
1.5
1.5
1.75
1225
12.0
4.0
4.0
2.0
1.5
1.5
1.75
1206
8.0
4.0
4.0
2.0
Welwyn
Components Limited
Bedlington, Northumberland NE22 7AA, UK
1.5
3.5
5.5
3.5
3.5
5.5
5.5
5.5
Ordering Procedure
Ordering Procedure
Example: WHPC1206 at 10 kilohms and 1% tolerance on a reel of 5000 pieces -
Example: WHPC1206-10KFT5
(WHPC1206, 10 kilohms ±1%, Pb-free)
W
H
1
1
2
P
C
1
2
2
3 3
Range
0
6
3
4
Value
-
1
0
4
K
F
5
5
Tolerance
F = ±1%
J = ±5%
T
5
WHPC1206–10KFT5
6
6
Packing
T5
1206, 0508, 0612
T4 2010, 1020, 1218, 1225
5000/reel
4000/reel
Type
Size
Series Size
Value (use IEC62 code)
WHPC 1206
Omit for Standard
E24 = 3/4 characters
2010 X
code)
Tolerance (use IEC62
= Extra-high-power E96 = 3/4 characters
0508 (0508, 0612, 1020 only)
R = ohms
F
1%
0612
K = kilohms
J
5%
1020
M = megohms
1218
Packing
1225
General Note
T5
T4
Tape
1206, 0612
2010, 1020, 1218, 1225
5000/reel
4000/reel
Standard
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
10.21
Switching Power Supply Study Group
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