CHP

CHP WELWYN | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 2

Technical content

Characteristics Maximum Change Test Method Temperature As Specified MIL-R55342E Par 4.79 (-55°C =125°C) Thermal Shock ±0.5% +0.01 ohm MIL-R55342E Par 4.7.3 (-65°C +150°C, 5 cycles) Low Temperature Operation ±0.25% +0.01 ohm MIL-R-55342E Par 4.7.4 (-65°C @ working voltage) Short Time Overload ±0.5% +0.01 ohm MIL-R-55342E Par 4.7.5 +1% for R>100K ohm 2.5 x √PxR for 5 seconds High Temperature Exposure ±0.5% +0.01 ohm MIL-R-55342E Par 4.7.6 (+150°C for 100 hours) Resistance to Bonding Exposure ±0.25% 0.01 ohm MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260°C for 10 seconds) Solderability 95% minimum coverage MIL-STD-202, Method 208 (245°C for 5 seconds) Moisture Resistance ±0.5% +0.01 ohm MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours) Life Test ±0.5% +0.01 ohm MIL-R-55342E Par 4.7.10 (2000 hour at 70°C intermittent) Terminal Adhesion Strength ±1% +0.01 ohm 1200 gram push from underside of mounted chip no mechanical change for 60 seconds Resistance to Board Bending ±1% +0.01 ohm Chip mounted in center of 90mm long board, deflected 5mm so as to exert pull on chip for 10 seconds Type Maximum Working Maximum Resistance Tolerance TCR Product Power Rating Voltage1Voltage Range2(±%)2(ppm/°C)2Category (watts) (volts) (volts) (ohms) 0R1 to 0R99 1, 2, 5 100 Low Range CHP1/8 0.25 @ 70°C 200 400 1R0 to 1M 1, 2, 5 50, 100 Standard 20R to 348K 0.25, 0.5 50, 100 Tight Tolerance CHP1/2 0.5 @ 70°C 300 600 0R1 to 0R99 1, 2, 5 100 Low Range 1R0 to 348K 1, 2, 5 50, 100 Standard 0R1 to 0R99 1, 2, 5 100 Low Range CHP1 1 @ 70°C 350 700 1R0 to 2M21 1, 2, 5 50, 100 Standard 20R to 348K 0.25, 0.5 50, 100 Tight Tolerance 2 @ 25°C 0R1 to 0R99 1, 2, 5 100 Low Range CHP21.33 @ 70°C500 10001R0 to 2M21 1, 2, 5 50, 100 Standard Metal Glaze™General Purpose Surface Mount Power Resistors CHP Series

• Up to 2 watts
• 0.1 ohm to 2.2 megohm range
• Up to 1000 volts
• 150°C maximum operating temperature General Note Welwyn Components 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. © Welwyn Components Limited· Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Electrical Data Issue C · 05.03 A subsidiary of TT electronics plc Welwyn Components Performance Characteristics 1Not to exceed √PxR 2Consult factory for tighter TCR, tolerance or resistance values CHP_C.qxd 14/5/03 8:16 am Page 1

Metal Glaze™General Purpose Surface Mount Power Resistors CHP Series © Welwyn Components LimitedBedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com CHP Power Derating Curve CHP Repetitive Surge Curve Issue C · 05.03 Welwyn Components 120% 100% 80% 60% 40% 20% 30 50 70 90 110 130 150 Ambient Temperature (oC) Percent Relative Power CHP 1/8, 1/2, 1 CHP 2 1000 100 .1msec 1msec 10msec 100msec 10000msec Surge or pulse duration (seconds) Peak Power (watts) CHP 2 CHP 1 CHP 1/8 CHP 1/2 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. Size Code Industry Dimensions (mm) FootprintLWC Physical Data L C W CHP_C.qxd 14/5/03 8:16 am Page 2