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Metal GlazeTM Surface Mount Precision Power Chip
PPC Series
* Surge tolerant * Up to 1000 volts * Tight TCR - 25 ppm/C * Tolerance down to 0.1%
Solder over nickel barrier High temperature dielectric coating Metal GlazeTM thick film element fired at 1000C to solid ceramic substrate
Electrical Data
Size Code B D F H Industry Footprint 1206 2010 2512 3610 IRC Type PPC1/8 PPC1/2 PPC1 PPC2 Power Rating at 70C (W) 1/8 W 1/2 W 1W 2W 1.33W Working Voltage 200 300 350 500 Resistance Range (ohms) 100 - 10K 100 - 10K 100 - 10K 100 - 10K 0.1% (B) 0.25% (C) 0.5% (D) Tolerance (%) Qty / Reel (7") 2500 1500 N/A N/A Qty / Reel (13") 10000 5000 5000 1500
Environmental Data
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 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 1% + 0.01 ohm no mechanical damage Test Method MIL-R-55342E Par 4.7.9 (-55C + 125C) MIL-R-55342E Par 4.7.3 (-65C + 150C, 5 cycles) MIL-R-55342E Par 4.7.4 (-65C @ working voltage) MIL-R-55342E Par 4.7.5 2.5 x
for 5 seconds
MIL-R-55342E Par 4.7.6 (+150C for 100 hours) MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260C for 10 seconds) MIL-STD-202, Method 208 (245C for 5 seconds) MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours) MIL-R-55342E Par 4.7.10 (2000 hours at 70C 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
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.
Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
A subsidiary of TT electronics plc PPC Series Issue November 2008 Sheet 1 of 3
Metal GlazeTM Surface Mount Precision Power Chip
Physical Data
L C
W
Size Code B D F H
Industry Footprint 1206 2010 2512 3610
Dimensions (Inches and (mm)) Actual Size L 0.128 0.007 (3.25 0.18) 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) 0.079 0.006 (2.01 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) 0.030 0.010 (0.761 0.25) 0.040 0.010 (1.02 0.25) 0.050 0.010 (1.27 0.25)
Recommended Solder Pad Dimensions (Reflow): To ensure excellent solderability performance, IRC recommends the following pad design. This design will provide a large repeatable solder fillet to the PPC resistor on reflow processes and will provide maximum heat transfert to the PC board in high power applications. By placing the PPC on the solder paste while the paste is in the "tacky" state, the PPC will be held in position until solder reflow begins. The pad design thes 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 above the board level directly beneath the PPC is not recommended.
Recommended Solder Pad Dimensions (Reflow):
F
A C A
B
E
D
Size Code B D F H
Industry Footprint 1206 2010 2512 3610
Dimensions (Inches and mm)) A 0.076 (1.93) 0.111 (2.82) 0.121 (3.07) 0.170 (4.32) B 0.093 (2.36) 0.126 (3.20) 0.126 (3.20) 0.160 (4.06) C 0.058 (1.47) 0.096 (2.44) 0.127 (3.23) 0.213 (5.41) D 0.098 (2.49) 0.152 (3.86) 0.183 (4.65) 0.273 (6.93) E 0.032 (0.81) 0.040 (1.02) 0.040 (1.02) 0.044 (1.12) F 0.211 (5.36) 0.318 (8.08) 0.369 (9.37) 0.553 (14.05)
Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
PPC Series Issue November 2008 Sheet 2 of 3
Metal GlazeTM Surface Mount Precision Power Chip
Standard Reel Packaging Per EIA-481
Size Code B D F H Industry Footprint 1206 2010 2512 3610 Reel Diameter* 7", 13" 7", 13" 13" 7" Quantity Per Reel 2,500 max., 10,000 max. 1,500 max., 5,000 max. 5,000 max. 1,500 max. Carrier Tape Width 8mm 12mm 12mm 24mm Component Pitch 4mm 4mm 4mm 4mm
* The 13" reel is considered standard and will be supplied unless otherwise specified.
Power Derating Curve
100
PPC 1/8, 1/2, 1
Repetitive Surge Curve
1000
% of Rated Power
80
Peak Power (watts)
PPC 2
100
60
PPC 2
PPC 1
40 20 0
10
PPC 1/8
PPC
1/2
30
40
50 60
70
80
90 100 110 120 130 140 150
1 0.0001
.1msec
Ambient Temperature (C)
0.0010
1msec
0.0100
10msec
Ordering Data
Specify type, resistance, tolerance, RoHS-Compliance and packaging. This example is for a Surface Mount Precision Power Chip.
100msec
0.1000
10000msec
1.0000
Surge or Pulse Duration (seconds)
Sample Part No. IRC Type
PPC1 25
1001
F
LF
13
PPC 1/8, 1/2, 1, 2
(100 - First 3 significant digits plus 4th digit multiplier) Example: 100 = 1000; 1000 = 1001 (>100 - "R" is used to designate decimal) Example: 10 = 10R0; 0.25 = R250
Resistance Value (EIA 4-digit code)
Tolerance (EIA format)
B = 0.1%, C = 0.25%, D = 0.5%
RoHS Indicator
LF indicates RoHS compliance Blank designates 60% Sn / 40% Pb Solder
Packaging
(BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel)
Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
PPC Series Issue November 2008 Sheet 3 of 3

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