Metal Glaze
™
Power Pack Surface Mount
Metal Glaze™ Power Pack Surface Mount
High
Power Density Ceramic Package
Power Density Ceramic Package
PPS-1 Series
PPS-1 Series
1 watt performance, standard 2010 footprint
•
1 watt performance, standard 2010 footprint
Flat ceramic package
•
Flat ceramic package
0R1 to 348K range
•
0R1 to 348K range
Low inductance
•
Low inductance
handling capability
Superior surge
•
Superior surge handling capability
150°C maximum operating temperature
•
150°C maximum operating temperature
Flameproof
•
Flameproof
Ceramic package provides superior
•
Ceramic package provides superior
temperature rise profile
temperature rise profile
Welwyn Components
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·
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·
·
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Electrical Data
PPS-1
Industry footprint
Maximum power rating at 70°C
Working voltage
1
Maximum voltage
Resistance range
Tolerance
TCR
watts
volts
volts
ohms
±%
2
ppm/°C
2
2010
1
350
700
0.1 to 0.99
1.0 to 348K
1, 2, 5
1, 2, 5
100
50, 100
1
2
Not to exceed (PxR)
1
/
2
Consult factory for tighter tolerance or TCR
PPS-1 Applications
The PPS-1 will dissipate 1 watt at 70°C on a 2010 footprint.
The PPS-1 is recommended for applications where board real
estate or component/board TCE mismatch is a major concern.
It is also recommended in circuits where a standard 2010
resistor exhibits marginal or unacceptable performance due to
high power density/surge handling demands.
Physical Data
Dimensions (mm)
a
PPS-1
4.32 ±0.25
b
3.30 ±0.13
c
2.01 ±0.15
d
5.08 ±0.25
e
3.30 ±0.13
f
2.67 ±0.13
Top view
a
Side view
e
f
b
c
d
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.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670
© TT electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
Issue C · 04.03
09. 11
49
Metal Glaze™ Power Pack
Pack Surface Mount
Metal Glaze
™
Power
Surface Mount
High Power Density Ceramic Package
High Power Density Ceramic Package
PPS-1 Series
PPS-1 Series
Welwyn Components
Performance Data
Test Method
Temperature coefficient
Thermal Shock
Low temperature
Short time overload
High temperature exposure
Resistance to bonding exposure
Solderability
Moisture resistance
Life test
Terminal adhesion strength
Resistance to board bending
MIL-R-55342E Par 4.7.9 (-55°C +125°C)
MIL-R-55342E Par 4.7.3 (-65°C +150°C, 5 cycles)
MIL-R-55342E Par 4.7.4 (-65°C @ working voltage)
MIL-R55342E Par 4.7.5 (2.5 x (PxR)1/2)
MIL-R55342E Par 4.7.6 (+150°C for 100 hours)
MIL-R55342E Par 4.7.7
(Reflow soldered to board at 260°C for 10 sec.)
MIL-STD-202, Method 208 (245°C for 5 seconds)
MIL-R55342E Par 4.7.8 (10 cycles, total 2240 hours)
MIL-R55342E Par 4.7.10
(2000 hours at 70°C intermittent
1200 gram push from underside
of mounted chip for 60 seconds
Chip mounted in centre of 90mm long board
deflected 5mm so as to extent pull on chip
contacts for 10 seconds
Maximum Change
As specified above
±(0.5% +0.01 ohm)
±(0.25% +0.01 ohm)
±(1.0% +0.01 ohm)
±(0.5% +0.01 ohm)
±(0.5% +0.01 ohm)
95% minimum coverage
±(0.5% +0.01 ohm)
±(1.0% +0.01 ohm)
±(1% +0.01 ohm)
+(1% +0.01 ohm)
Ordering Procedure
Example: PPS1 at 10 Ohms and 2% tolerance on a reel of 500 pieces
–
P P S 1- 1 0 R G
I
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
G
1%
2%
J
5%
Packing
I
Tape
500/reel
Standard
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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
© TT electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
50
Issue C · 04.03
09. 11
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