CHP Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Metal Glaze™ General Purpose Surface Mount Power Resistors

Metal Glaze™ Cylindrical
Surface Mount
Power Resistors
CHP Series
• Up to 2 watts
• Up to 1000 volts
• 0.2 ohm to 2.2 megohm range
• RoHS-compliant version available
• 150°C maximum operating temperature
Electrical Data
Metal Glaze™ thick
film element fired
at 1000°C to solid
ceramic substrate
Solder over nickel
barrier
High
temperature
dielectric
coating
IRC
Type
Indus-
try
Foot-
print
Size
Maximum Working Maximum Resistance
Code1 Power Rating Voltage² Voltage Range (ohms)³
Product
Category
Tolerance
(±%)³
TCR
(ppm/°C)³
0.1 to 0.99
Low Range
1, 2, 5
100
CHP 1/8 1206 B & C 1/4W @ 70°C 200
400
1.0 to 1.0 M
Standard
1, 2, 5
50, 100
20 to 348K
Tight Tolerance 0.25, 0.5
50, 100
CHP 1/2 2010 D & E 1/2W @ 70°C 300
600
0.1 to 0.99
1.0 to 348K
Low Range
Standard
1, 2, 5
1, 2, 5
100
50, 100
0.1 to 0.99
Low Range
1, 2, 5
100
CHP 1 2512
F
1W @ 70°C
350
700
1.0 to 2.21M
Standard
1, 2, 5
50, 100
20 to 348K
Tight Tolerance 0.25, 0.5
50, 100
CHP 2 3610
H
2W @ 25°C
1.33W @ 70°C
500
1000
0.2 to 0.99
1.0 to 2.21M
Low Range
Standard
1, 2, 5
1, 2, 5
100
50, 100
¹See page 8 for product dimensions, recommended solder pads, and standard packaging. ²Not to exceed √P x R
³Consult factory for tighter TCR, tolerance, or resistance values.
Environmental Data
Characteristics
Maximum Change
Test Method
Temperature Coefficient
As specified
MIL-R-55342E Par 4.7.9 (-55°C + 125°C)
Thermal Shock
±0.5% + 0.01 ohm
MIL-R-55342E Par 4.7.3 (-65°C + 150°C, 5 cycles)
Low Temperature Operation
Short Time Overload
High Temperature Exposure
±0.25% + 0.01 ohm
±0.5% + 0.01 ohm
±1% for R>100K ohm
±0.5% + 0.01 ohm
MIL-R-55342E Par 4.7.4 (-65°C @ working voltage)
MIL-R-55342E Par 4.7.5
2.5 x √ for 5 seconds
MIL-R-55342E Par 4.7.6 (-150°C for 100 hours)
Resistance to Bonding
±0.25% + 0.01 ohm
MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260°C for 10 seconds)
Exposure
95% minimum coverage MIL-STD-202, Method 208 (245°C for 5 seconds)
Solderability
±0.5% + 0.01 ohm
MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours)
Moisture Resistance
Life Test
Terminal Adhesion Strength
±0.5% + 0.01 ohm
±1% + 0.01 ohm
no mechanical damage
±1% + 0.01 ohm
no mechanical damage
MIL-R-55342E Par 4.7.10 (2000 hours at 70°C intermittent)
1200 gram push from underside of mounted cchip for 60 seconds
Chip mounted in center of 90mm long board, deflected 1mm so as to
exert pull on chip contacts for 5 seconds
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
© IRC Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: [phone] • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
CHP Series Issue July 2009 Sheet 1 of 3