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.
A subsidiary of
TT electronics plc
CHP SERIES
METAL GLAZE™ GENERAL PURPOSE
SURFACE MOUNT POWER RESISTOR
· Up to 2 watts
· 0.2 ohm to 2.2 megohm range
· Up to 1000 volts
· 150°C maximum operating temperature
· RoHS-compliant version available
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
CHP PERFORMANCE CHARACTERISTICS:
Characteristics
Temperature Coefficient
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Resistance to Bonding
Exposure
Solderability
Moisture Resistance
Life Test
Terminal Adhesion Strength
Maximum Change
As specified
±0.5% +0.01 ohm
±0.25% +0.01 ohm
±0.5% +0.01 ohm
±1% for R>100K ohm
±0.5% +0.01 ohm
±0.25% 0.01 ohm
95% minimum coverage
±0.5% +0.01 ohm
±0.5% +0.01 ohm
±1% +0.01 ohm
no mechanical damage
±1% + 0.01 ohm
no mechanical damage
Test Method
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-R-55342E Par 4.7.5
2.5 x for 5 seconds
MIL-R-55342E Par 4.7.6 (+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 (245°C for 5 seconds)
MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours)
MIL-R-55342E Par 4.7.10 (2000 hour at 70°C intermittent)
1200 gram push from underside of mounted chip for 60 seconds
Chip mounted in center of 90mm long board, deflected 1mm so as to
exert pull on chip contacts for 5 seconds
Metal GlazeTM thick
film element fired
at 1000°C to solid
ceramic substrate
High
temperature
dielectric
coating
Solder over nickel
barrier
CHP SPECIFICATIONS:
IRC
Type
CHP 1/8
CHP 1/2
CHP 1
CHP 2
Industry
Footprint
1206
2010
2512
3610
Size
Code1
B
D
F
H
Maximum
Power Rating
1/4W @ 70°C
1/2W @ 70°C
1W @ 70°C
2W @ 25°C
1.33W @ 70°C
Maximum
Voltage
400
600
700
1000
Working
Voltage2
200
300
350
500
Resistance
Range (ohms)3
0.1 to 0.99
1.0 to 1.0 M
20 to 348K
0.1 to 0.99
1.0 to 348K
0.1 to 0.99
1.0 to 2.21M
20 to 348K
0.2 to 0.99
1.0 to 2.21M
Tolerance
(±%)3
1, 2, 5
1, 2, 5
0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
1, 2, 5
0.25, 0.5
1, 2, 5
1, 2, 5
TCR
(ppm/°C)3
100
50, 100
50, 100
100
50, 100
100
50, 100
50, 100
100
50, 100
Product
Category
Low Range
Standard
Tight Tolerance
Low Range
Standard
Low Range
Standard
Tight Tolerance
Low Range
Standard
1See page 8 for product dimensions, recommended solder pads, and standard packaging. 2 Not to exceed 3 Consult factory for tighter TCR, tolerance, or resistance values.
PxR
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.
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
Peak Power (watts)
CHP REPETITIVE SURGE CURVE:
Surge or Pulse duration (seconds)
HOW TO ORDER:
Sample Part No.
IRC Type
(CHP 1/8, CHP 1/2, CHP 1, or CHP 2)
Temperature Coefficient
(50 or 100)
Resistance Value
(100 ohms and greater - First 3 significant figures plus 4th digit multiplier)
Example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503
(Less than 100 ohms - "R" is used to designate decimal)
Example: 51 ohms = 51R0, 1 ohm = 1R00, 0.25 ohm = R250
Tolerance
(C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%)
Packaging Code*
(BLK = Bulk, 7=7" Reel, 13=13" Reel)
*See page 8 for packaging details
CHP 1 100 2203 F 13 LF
CHP POWER DERATING CURVE:
Percent Relative Power
Ambient Temperature (°C)
*For packaging information, see Appendix “A”.
Lead Free Construction
3
ISO-9001
Registered
CHP FAMILY STANDARD SIZES, SOLDER PADS AND PACKAGING:
RECOMMENDED SOLDER PAD DIMENSIONS (REFLO W):
To ensure excellent solderability performance, IRC recommends the following pad design. This design will provide a
large repeatable solder fillet to the CHP resistor on reflow processes and will provide maximum heat transfer to the PC
board in high pow er applications. By placing the CHP on the solder paste while the paste is in the "tacky" state, the CHP
will be held in position until solder reflow begins. The pad design then uses the surface tension of the molten solder to
pull the component to the center of the solder pad. The placement of a via rising abov e the board le v el directly beneath
the CHP is not recommended.
DIMENSIONS (Inches and (mm)):
Industry
Footprint
1206
1206
2010
2010
2512
3610
Size Code
B
C
D
E
F
H
Actual Size L
0.128±0.007
(3.25±0.18)
0.128±0.007
(3.25±0.18)
0.200±0.010
(5.08±0.25)
0.200±0.010
(5.08±0.25)
0.251±0.010
(6.38±0.25)
0.367±0.010
(9.32±0.25)
W
0.057±0.006
(1.45±0.15)
0.063±0.010
(1.60±0.25)
0.079±0.006
(2.01±0.15)
0.105±0.006
(2.67±0.15)
0.079±0.006
(2.01±0.15)
0.105±0.006
(2.67±0.15)
C
0.020±0.010
(0.51±0.25)
0.020±0.010
(0.51±0.25)
0.030±0.010
(0.761±0.25)
0.040±0.015
(1.02±0.38)
0.040±0.010
(1.02±0.25)
0.050±0.010
(1.27±0.25)
W
L
C
Size
Code
B&C
D
E
F
H
Industry
Footprint
1206
2010
2010
2512
3610
Dimensions (Inches and (mm))
A
0.076
(1.93)
0.111
(2.82)
0.170
(4.32)
0.121
(3.07)
0.170
(4.32)
B
0.093
(2.36)
0.126
(3.20)
0.160
(4.06)
0.126
(3.20)
0.160
(4.06)
C
0.058
(1.47)
0.096
(2.44)
0.072
(1.83)
0.127
(3.23)
0.213
(5.41)
D
0.098
(2.49)
0.152
(3.86)
0.132
(3.35)
0.183
(4.65)
0.273
(6.93)
F
0.211
(5.36)
0.318
(8.08)
0.412
(10.46)
0.369
(9.37)
0.553
(14.05)
E
0.032
(0.81)
0.040
(1.02)
0.044
(1.12)
0.040
(1.02)
0.044
(1.12)
F
CAA
D
E
B
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, Nor th Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
Quantity Per Reel
2,500 max.
10,000 max.
1,500 max.
5,000 max.
1,500 max.
5,000 max.
5,000 max.
1,500 max.
STANDARD REEL PACKAGING PER EIA-481:
Siz e Code
B&C
D
E
F
H
Industry Footprint
1206
2010
2010
2512
3610
* The 13" reel is considered standard and will be supplied unless otherwise specified.
Reel Diameter*
7"
13"
7"
13"
7"
13"
13"
7"
Carrier T ape
Width
8mm
12mm
12mm
12mm
24mm
Component
Pitch
4mm
4mm
4mm
4mm
4mm
