PHT www.vishay.com Vishay Sfernice High Stability - High Temperature (230 C) Thin Film Wraparound Chip Resistors, Sulfur Resistant FEATURES Operating temperature range: -55 C +215 C Storage temperature: -55 C +230 C Gold terminations (< 1 m thick) 5 sizes available (0402, 0603, 0805, 1206, 2010) other sizes upon request INTRODUCTION Temperature coefficient down to 15 ppm (-55 C +215 C) For applications such as down hole applications, the need Tolerance down to 0.01 % for parts able to withstand very severe conditions (temperature as high as 215 C powered or up to 230 C Load life stability: 0.35 % max. after 2000 h at 220 C un-powered) has leaded Vishay Sfernice to push out the (ambient) at Pn limit of the thin film technology. Shelf life stability: 0.7 % typ. (1 % max.) after 15 000 h at Designers might read the application note: Power 230 C Dissipation Considerations in High Precision Vishay SMD wraparound Sfernice Thin Film Chip Resistors and Arrays (P, PRA etc) (High Temperature Application) TCR remains constant after long term storage at 230 C www.vishay.com/doc 53047 in conjunction with this (15 000 h) datasheet to help them to properly design their PCBs and Sulfur resistant (per ASTM B809-95 humid vapor test) get the best performances of the PHT. Material categorization: for definitions of compliance Vishay Sfernice R&D engineers will be willing to support any please see www.vishay.com/doc 99912 customer design considerations. STANDARD ELECTRICAL SPECIFICATIONS (1)(2) RESISTANCE RATED POWER LIMITING ELEMENT TEMPERATURE (2) TOLERANCE (3) MODEL SIZE RANGE P VOLTAGE COEFFICIENT 215 C % W V ppm/C PHT0402 0402 10 to 130K 0.0189 50 0.01, 0.02, 0.05, 0.1, 0.5, 1 10, 15, 25, 30, 50, 55 PHT0603 0603 10 to 320K 0.0375 75 0.01, 0.02, 0.05, 0.1, 0.5, 1 10, 15, 25, 30, 50, 55 PHT0805 0805 10 to 720K 0.06 150 0.01, 0.02, 0.05, 0.1, 0.5, 1 10, 15, 25, 30, 50, 55 PHT1206 1206 10 to 2.7M 0.1 200 0.01, 0.02, 0.05, 0.1, 0.5, 1 10, 15, 25, 30, 50, 55 (4) PHT2010 2010 10 to 7.5M 0.2 300 0.01, 0.02, 0.05, 0.1, 0.5, 1 10, 15, 25, 30, 50, 55 Notes (1) For power handling improvement, please refer to application note 53047: Power Dissipation Considerations in High Precision Vishay Sfernice Thin Film Chip Resistors and Arrays (High Temperature Applications) www.vishay.com/doc /53047 and consult Vishay Sfernice (2) See Table 2 on next page (3) See Table 1 on next page (4) It is possible to dissipate up to 0.3 W, but there will be an additional drift of 0.1 % after load life CLIMATIC SPECIFICATIONS MECHANICAL SPECIFICATIONS Substrate Alumina Operating temperature range -55 C +215 C Resistive Element Nichrome (NiCr) Passivation Silicon nitride (Si N ) 3 4 Storage temperature range -55 C +230 C Protection Epoxy + silicone Terminations Gold (< 1 m) over nickel barrier PERFORMANCE VS. HUMID SULFUR VAPOR Note 50 C 2 C, 85 % 4 % RH, For other terminations, please consult Test conditions exposure time 500 h Resistance drift < (0.05 % R + 0.05 ), Test results no corrosion products observed Revision: 14-Jan-15 Document Number: 53050 1 For technical questions, contact: sferthinfilm vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000PHT www.vishay.com Vishay Sfernice TABLE 1 - TEMPERATURE COEFFICIENT 10 ppm/C -55 C +155 C Y 15 ppm/C -55 C +215 C 25 ppm/C -55 C +155 C E 30 ppm/C -55 C +215 C 50 ppm/C -55 C +155 C H 55 ppm/C -55 C +215 C TABLE 2 - BEST TOLERANCE AND TCR VS. OHMIC VALUE SERIES RANGE () TOL. ( %) TCR CODE 10 to < 100 0.05 0.1 0.5 1 Y E H 0402 100 to < 90K 0.01 0.02 0.05 0.1 0.5 1 Y E H 90K to 130K 0.01 0.02 0.05 0.1 0.5 1 E H 10 to < 100 0.05 0.1 0.5 1 Y E H 0603 100 to < 210K 0.01 0.02 0.05 0.1 0.5 1 Y E H 210K to 320K 0.01 0.02 0.05 0.1 0.5 1 E H 10 to < 100 0.05 0.1 0.5 1 Y E H 0805 100 to < 480K 0.01 0.02 0.05 0.1 0.5 1 Y E H 480K to 720K 0.01 0.02 0.05 0.1 0.5 1 E H 10 to < 100 0.05 0.1 0.5 1 Y E H 1206 100 to < 1.8M 0.01 0.02 0.05 0.1 0.5 1 Y E H 1.8M to 2.7M 0.01 0.02 0.05 0.1 0.5 1 E H 10 to < 100 0.05 0.1 0.5 1 Y E H 2010 100 to < 5M 0.01 0.02 0.05 0.1 0.5 1 Y E H 5M to 7.5M 0.01 0.02 0.05 0.1 0.5 1 E H PHT STABILITY CURVE High Temperature Drift vs. Time 2.0 1.8 1.6 1.4 1.2 1.0 T = 230 C 0.8 With Pd 0.6 T = 215 C (T = 230 C) j T = 200 C 0.4 T = 185 C 0.2 0.0 0 2000 4000 6000 8000 10 000 12 000 14 000 Time in h Note Stability will be dependent on resistivity of resistor. Above curves are worst case. Revision: 14-Jan-15 Document Number: 53050 2 For technical questions, contact: sferthinfilm vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 Drift in %