Resistors
Pulse Withstanding
Planar Resistors
PWP Series
Excellent pulse withstand capability
Energy ratings 5J to 70J
Excellent reliability
Ideally suited for medical applications
Custom design service available
RoHS compliant
All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Energy rating (10msec pulse, 25˚C)
Power rating at 70˚C
Resistance range
Limiting element voltage (dc or ac rms)
TCR (20˚C to 70˚C)
Resistance tolerance
Standard values
Ambient temperature range
joules
watts
ohms
volts
ppm/°C
%
°C
PWP04
6
0.4
PWP08
PWP10
PWP15
13
33
50
0.8
1
1.5
100 to 200K
√(P.R)
PWP04, 06, 08: 100: PWP10, 15, 20 <200R: 200: ≥200R: 100
1, 5
E24 preferred
-55 to 155
PWP06
11
0.6
PWP20
70
2
Physical Data
All Dimensions in mm and nominal weight in g
Type
PWP04
PWP06
PWP08
PWP10
PWP15
PWP20
L ±0.75
10.16
12.7
17.78
25.4
38.1
50.8
H ±0.5
6.35
6.35
6.35
6.35
6.35
6.35
W ±0.5
2
2
2
2
2
2
P ±0.5
7.62
10.16
15.24
22.86
35.56
48.26
Weight
0.31
0.38
0.51
0.69
1.1
1.33
0.5
P
7 min
0.7
0.25
L
H
W
Construction
Conductor pads are printed to the rear and front faces of a 96% alumina substrate. A specially selected high voltage
thick film resistor ink, based on a ruthenium oxide/glass system, is printed between the front face conductors and then
covered in an overglaze before being protected with a special screen printed material which gives excellent high
voltage and climatic performance.
Marking Type
Resistance value and tolerance are legend marked in black ink on the rear of the component. The resistance value conforms to IEC 62.
Solvent Resistance
The component protection and marking are resistant to all normal industrial cleaning solvents suitable for printed
circuit boards.
Terminations
Solder coated phosphor bronze leadframe terminations are solder dipped in SnAgCu and meet the following IEC requirements: IEC
68.2.21 – Strength, IEC 115-1, Clause 4.17.3.2 – Solderability.
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
07.18
Pulse Withstanding
Planar Resistors
PWP Series
Performance Data
Load at rated power: 1000 hours at 70˚C
Dry heat: 1000 hours at 155˚C
Shelf life: 12 months at room temperature
Derating from power at 70˚C
Climatic
Climatic category
Long term damp heat
Temperature rapid change
Resistance to solder heat
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
Maximum
1
1
0.3
Zero at 155˚C
1
-55/155/56
1
0.25
0.25
0.3
0.02
0.02
0.3
Typical
0.25
0.25
<0.1
Pulse / Surge Performance
Data based on testing performed at 100R
using Single Pulse conditions, i.e. with
mean power negligible compared to rated
power. The maximum allowed ΔR is 1%
1000
Single Pulse Energy Capacity
100
Energy (J)
PWP20
PWP15
PWP10
PWP08
PWP06
PWP04
10
1
0.1
0.01
0.1
1
10
Duration of Pulse (ms)
100
1,000,000
Maximum Single Pulse Power
100,000
Peak Power (W)
10,000
PWP20
PWP15
PWP10
PWP08
PWP06
PWP04
1,000
100
10
0.01
0.1
1
Duration of Pulse (ms)
10
100
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
07.18
Pulse Withstanding
Planar Resistors
PWP
Series
Pulse Withstanding Planar Resistors
PWP Series
Design Flexibility
The experience of TT electronics engineers has been used to design this generation of pulse withstanding planar resistors to
The experience of TT electronics engineers has been used to design this generation of pulse
be suitable for the majority of applications. However, should an application require particular consideration, TT electronics
withstanding planar resistors to be suitable for the majority of applications. However, should an application require
designers are able to provide advice and, where applicable, to recommend a non-standard product. Special sizes, designs
particular consideration, TT electronics
etc, can be prototyped at short notice.
designers are able to provide advice and, where applicable, to recommend a non
standard product. Special sizes, designs etc, can be prototyped at short notice.
Ordering
Procedure
Ordering
Procedure
Example: PWP10 at 200 ohms and 5% tolerance and packed in a box of 160 pieces:
Example: PWP10 at 200 ohms and 5% tolerance and packed in a box of 160 pieces:
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
J
1%
5%
Packing
B048
B036
B024
B016
B012
B008
Bulk Pack
PWP04
PWP06
PWP08
PWP10
PWP15
PWP20
480 / box
360 / box
240 / box
160 / box
120 / box
80 / box
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.
www.bitechnologies.com www.irctt.com www.welwyntt.com
12.11
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
07.18
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