Metal Glaze
™
General Purpose
Metal Glaze™
General Purpose
Glaze
™
General Purpose
Surface Mount Power Resistors
Surface Mount Power
Resistors
CHP Series
CHP Series
CHP Series
to 2 watts
•
Up
Up
•
2
2 watts
•
Up
to
0.1 ohm to 2.2 megohm range
to
watts
0.1 ohm to 2.2 megohm range
•
0.1 ohm to 2.2 megohm range
•
Up to 1000 volts
Up to 1000 volts
•
Up to
150°C
volts
operating temperature
•
maximum
150°C
1000
maximum operating temperature
•
150°C maximum operating temperature
Welwyn Components
Welwyn Components
·
·
·
·
Electrical Data
Electrical Data
Maximum
Type
Type
Working
Maximum
Resistance
Tolerance
TCR
Product
Power Rating
Voltage
1
Voltage
Range
2
(±%)
2
(ppm/°C)
2
Category
Maximum
Working
Maximum
Resistance
Tolerance
TCR
Product
(watts)
(volts)
(volts)
(ohms)
1
2
2
2
Power Rating
Voltage
Voltage
Range
(±%)
(ppm/°C)
Category
0R1
1, 2, 5
100
Low Range
(watts)
(volts)
(volts)
(ohms)
to 0R99
0.25 @ 70°C
0.25 @ 70°C
200
CHP1/8
CHP1/8
200
400
CHP1/2
CHP1/2
0.5 @ 70°C
0.5 @ 70°C
300
300
600
400
0R1 to 0R99
to 1M
2, 5
1, 2, 5
100
50, 100
Range
1R0
Standard
1,
Low
20R
Tight
1R0 to 1M
to 348K
5
0.25, 0.5
100
50, 100
1, 2,
50,
Standard
Tolerance
0R1
Low
20R to 348K
to 0R99
0.5
1, 2, 5
100
100
0.25,
50,
Tight Tolerance
Range
600
1R0
Standard
0R1 to 0R99
to 348K
5
1, 2, 5
100
50, 100
Range
1, 2,
Low
0R1
1R0 to 348K
to 0R99
5
1, 2, 5
100
1, 2,
50,
700
0R1 to 0R99
to 2M21
5
1, 2, 5
100
1R0
1, 2,
100
Standard
Low Range
50, 100
Range
Standard
Low
100
Low
Tight Tolerance
Range
50, 100
Range
Standard
Low
Standard
CHP1
CHP1
1 @ 70°C
1 @ 70°C
350
350
700
20R
Tight
1R0 to 2M21
to 348K
5
0.25, 0.5
100
50, 100
1, 2,
50,
Standard
Tolerance
1000
0R1
20R to 348K
to 0R99
0.5
1, 2, 5
100
0.25,
50,
1R0
0R1 to 0R99
to 2M21
5
1, 2, 5
100
1, 2,
1, 2, 5
50, 100
CHP2
CHP2
1
2 @ 25°C
1.33
2 @ 25°C
@ 70°C
500
500
1000
1
2
Performance Characteristics
Performance Characteristics
Change
Characteristics
Maximum
Characteristics
Temperature
Temperature
Thermal Shock
Thermal Shock
Low Temperature Operation
Low Temperature Operation
Short Time Overload
Short Time Overload
Maximum Change
As Specified
As Specified
+0.01 ohm
±0.5%
√
PxR
Not to exceed
1.33 @ 70°C
2
Consult factory for tighter TCR, tolerance or resistance values
Not to exceed
√
PxR
Consult factory for tighter TCR, tolerance or resistance values
1R0 to 2M21
Test Method
MIL-R55342E
Test
4.79 (-55°C =125°C)
Par
Method
MIL-R55342E Par 4.79
Par 4.7.3 (-65°C +150°C, 5 cycles)
MIL-R55342E
(-55°C =125°C)
MIL-R55342E Par 4.7.3
Par 4.7.4 (-65°C
5 cycles)
MIL-R-55342E
(-65°C +150°C,
@ working voltage)
MIL-R-55342E Par 4.7.4
Par 4.7.5
working voltage)
MIL-R-55342E
(-65°C @
MIL-R-55342E
√
PxR for 5 seconds
2.5 x
Par 4.7.5
2.5 x
√
PxR for 5 seconds
4.7.6 (+150°C for 100 hours)
MIL-R-55342E Par
MIL-R-55342E Par 4.7.6
Par 4.7.7 (Reflow soldered to board at
MIL-R-55342E
(+150°C for 100 hours)
MIL-R-55342E Par 4.7.7 (Reflow soldered to board at
260°C for 10 seconds)
MIL-STD-202, Method 208
4.7.8 (10 cycles, total 240 hours)
MIL-R-55342E Par
(245°C for 5 seconds)
MIL-R-55342E Par 4.7.8
Par 4.7.10 (2000
240 hours)
MIL-R-55342E
(10 cycles, total
hour at 70°C intermittent)
MIL-R-55342E
gram push
(2000
underside of mounted chip
1200
Par 4.7.10
from
hour at 70°C intermittent)
1200 gram push from underside of mounted chip
for 60 seconds
for 60 seconds
Chip mounted in center of 90mm long board, deflected
Chip mounted
so
center of 90mm long board, deflected
5mm
in
as to exert pull on chip for 10 seconds
5mm so as to exert pull on chip for 10 seconds
±0.5% +0.01 ohm
±0.25% +0.01 ohm
±0.25% +0.01 ohm
±0.5% +0.01 ohm
±0.5%
+1% for R>100K ohm
+0.01 ohm
+1% for R>100K ohm
ohm
±0.5% +0.01
±0.5% +0.01 ohm
±0.25% 0.01 ohm
±0.25% 0.01 ohm
95% minimum coverage
ohm
±0.5% +0.01
±0.5% +0.01 ohm
±0.5% +0.01 ohm
±0.5% +0.01 ohm
ohm
±1% +0.01
±1% +0.01 ohm
no mechanical change
no mechanical change
ohm
±1% +0.01
±1% +0.01 ohm
High Temperature Exposure
High Temperature Exposure
Resistance to Bonding Exposure
Resistance to Bonding Exposure
Solderability
Solderability
Moisture Resistance
Moisture
Life Test
Resistance
Life Test
Terminal Adhesion Strength
Terminal Adhesion Strength
95% minimum coverage
260°C for 10 seconds)
Method 208 (245°C for 5 seconds)
MIL-STD-202,
Resistance to Board Bending
Resistance to Board Bending
General Note
General
Welwyn Components reserves the right to make changes in product specification without notice or liability.
Note
General
All information is subject to Welwyn’s
changes in
and is considered accurate at time of going to print.
Note
Welwyn Components reserves the right to make
own data
product specification without notice or liability.
A subsidiary of
TT electronics plc
A subsidiary of
TT electronics reserves the
to Welwyn’s own data and is considered accurate at time of going to print.
All information is subject
right to make changes in product specification without notice or liability.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
TT electronics plc
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
Issue
Telephone: +44 (0) 1670 822181 Facsimile:
Northumberland NE22 7AA,
info@welwyn-tt.com · Website: www.welwyn-tt.com
www.irctt.com www.welwyn-tt.com
C · 05.03
www.bitechnologies.com
© Welwyn Components Limited
·
·
Bedlington,
+44 (0) 1670 829465 · Email:
UK
Issue C · 05.03
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
© TT electronics plc
43
10. 11
43
Metal Glaze™ General Purpose
Metal Glaze
™
General Purpose
Surface Mount Power Resistors
Surface Mount Power Resistors
CHP
Series
CHP
Series
CHP Power Derating Curve
120%
Welwyn Components
CHP Repetitive Surge Curve
1000
Percent Relative Power
CHP 1/8, 1/2, 1
Peak Power (watts)
100%
80%
60%
40%
20%
0%
30
50
70
CHP 2
100
CHP 2
CHP 1
CHP 1/2
CHP 1/8
10
90
110
130
150
Ambient Temperature
(
o
C)
1
0.0001
.1msec
0.0010
1msec
10msec
0.0100
100msec
0.1000
1.0000
10000msec
Surge or pulse duration (seconds)
Note: Use for repetitive pulses where the average power
dissipation is not to exceed the component rating at 70°C.
Surge handling capacity for low-repetitive surges may be
significantly greater than shown above. Contact factory for
recommendations.
Physical Data
Size Code
CHP1/8
CHP1/2
CHP1
CHP2
Industry
Footprint
1206
2010
2512
3610
L
3.25±0.18
5.08±0.25
6.38±0.25
9.32±0.25
Dimensions (mm)
W
1.45±0.15
2.01±0.15
2.01±0.15
2.67±0.15
C
0.51±0.25
0.761±0.25
1.02±0.25
1.27±0.25
L
W
C
Ordering Procedure
Example: CHP1 at 100 ohms, 1% tolerance and 100ppm/ °C on a reel of 1500 pieces -
CHP1
–
100RF
I
Type
Size
TCR
- 50
100ppm/
°C
50ppm/
°C
Value (use IEC62 code)
Tolerance (use IEC62 code)
C
D
F
0.25%
0.5%
1%
G 2%
J 5%
Packing
I
Tape
CHP1/8
CHP1/2, CHP1, CHP2
2500/reel
1500/reel
Standard
General Note
©
electronics reserves the right to make changes in product specification without notice or liability.
TT
Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
44
Issue C · 05.03
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
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
© TT electronics plc
10. 11
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