LOWOHMIC PRECISION AND POWER RESISTORS PRECISION AND POWER

LOW-OHMIC PRECISION AND POWER RESISTORS

PRECISION AND POWER RESISTORS Introduction // Products // Customers // ISABELLENHÜTTE HEUSLER GMBH & CO. KG 2

INTRODUCTION Overview // ISA-PLAN® / ISA-WELD® / Product families / Ways of assembly Facts // Countries / local agents / subsidiaries ISABELLENHÜTTE HEUSLER GMBH & CO. KG 3

INTRODUCTION ISA-PLAN® Ultimate performance where it‘s least expected – in every detail With our combination of specialist expertise and many decades of experience, we can offer our customers solutions with the highest quality standards. All our product serieses meet even the toughest requirements with regard to thermoelectric voltage, long-term stability, inductance and power rating. These characteristics are influenced not only by the choice of resistance material, but also by the resistor design. For this reason, we have created two different manufacturing technologies: ISA-PLAN® und ISA-WELD®. 4 OVERVIEW

INTRODUCTION ISA-PLAN® resistors are manufactured from etched, homogenous precision resistor alloys such as MANGANIN® or ZERANIN®. They are electrically insulated and mounted on a metal substrate with good thermal conductivity. The resistance materials have low temperature coefficients of less than 10 ppm/K and are thermoelectrically matched to the copper, thereby reducing thermoelectric voltage to almost zero. In addition, the heat conduction into the substrate, together with its high thermal capacity, provides excellent pulse power rating. 5 OVERVIEW

INTRODUCTION ISA-WELD® resistors made of composite material, copper and one of our resistor alloys, e. g. MANGANIN®, ZERANIN® or ISAOHM® and ALUCHROM. This enables highest flexibility. Thickness and width of the strips are as variable as the resistor materials used. An optimized heat distribution in the components avoids hot spots. There a number of further advantages, such as the comparatively low leading resistance of the copper connections and a uniform current density and heat distribution in the resistor. 6 OVERVIEW

INTRODUCTION PRODUCT FAMILIES / WAYS OF ASSEMBLY SMD assembly Hybrid assembly Circuit board assembly Heat sink assembly Customer-specific resistors made of composite material 7 OVERVIEW

INTRODUCTION OVERVIEW ISA-PLAN® SMD-Product series SMx Values: Tolerance: Power: TCR: VMx 4 mΩ – 4 Ω 0, 5 %; 1 %; 5 % 7 W <50 ppm/K 8 5 mΩ – 1 Ω 1 %; 5 % 4 W <20 ppm/K CMx VLx Values: Tolerance: Power: TCR: 1 – 39 mΩ 1 %; 5 % 2 W <50 ppm/K Values: Tolerance: Power: TCR: 10 – 250 mΩ 1 %; 5 % 2. 5 W <75 ppm/K

INTRODUCTION OVERVIEW ISA-PLAN® SMx family: R values: Tolerances: Power: TCR: VMx family: 4 mΩ - 4 Ω 0. 5 %; 1 %; 5 % ~ 7 W (2817) 50 ppm/K - sizes 1206, 2010, 2512 and 2817 - extremely low thermal resistance - flat size for two-sided plate assembly - cost-optimized design - solder pad as integrated substrate holder and heat sink 9 R values: Tolerances: Power: TCR: 5 mΩ - 1 Ω 1 %; 5 % ~ 4 W (2512) 20 ppm/K - sizes 0805, 1206, 2010 and 2512 - 3 W power loss with size 2512 - high permanent and pulse load capacity - standard solder pads

INTRODUCTION OVERVIEW ISA-PLAN® Comparison: ISA-PLAN® vs. the strongest competitor Temperature increase under load Difference hot spot and contact Load reduction curve of SMS at Tmax = 170 °C Rthi = 20 K/W 10

INTRODUCTION OVERVIEW ISA-PLAN® Comparison: ISA-PLAN® vs. the strongest competitor Long-term stability at 140 °C TC influence under load Change of resistance vs. temperature 1 0, 5 Resistance change [%] Resistance drift [%] 2 0 -0, 5 1 0 -1 -1 0 200 400 600 800 Aging time [h] SMS 1 SMS 2 Competition 11 1000 -2 -50 -25 0 25 50 75 100 125 Temperature [°C] SMS 3 ISA-PLAN® 20 ppm/K 50 ppm/K 100 ppm/K 300 ppm/K 150 175 200

INTRODUCTION OVERVIEW BASIC PRINCIPLE OF ISA-PLAN® Foil technology <=> thick film / thin film technology Resistance foil with heat-conductive adhesive Resistance foil Adhesive Substrate 0. 02 to 1. 5 mm Manganin® Zeranin® Aluchrom 0. 025 to 0. 075 mm Acrylic filled with epoxy adhesive (Durabond technology) with or without Kapton interlayer Product advantages Low TC High time stability Low thermo-electric voltage against copper Resistant against environmental influences 12 0. 3 to 2 mm (up to 6 mm) Copper Aluminium (anodised)

PRECISION AND POWER RESISTORS INTRODUCTION BASIC PRINCIPLE OF ISA-WELD® (Cu-Manganin®-Cu) ® Basis. Manganin Prinzipprinciple of Cu l w Electronbeam welding - highly stable production process - cost-efficient, high accuracy - extremely thin welding area (1/3 of the material‘s thickness) - low influence on the overall resistance h Product advantages: R= ρxl A = ρxl wxh ρ = 0. 43 Ω mm²/m 13 - low resistance values down to 0. 1 mΩ available - minimised power loss - ideally suited for assembly on DCB/IMS - SMD assembly possible - very narrow tolerances down to 0. 5 % - undestroyable welding connection - 4 -channel measurement technology

INTRODUCTION OVERVIEW ISA-WELD® SMD-Product series BVE Values: Tolerance: Size: Power: TCR: BVS 0. 1 – 5 mΩ 1 %; 5 % 5930 up to 15 W from 50 ppm/K BVB Values: Tolerance: Size: Power: TCR: 0. 2 – 5 mΩ 1 %; 5 % 2725 up to 12 W from 20 ppm/K * Under development 14 Values: Tolerance: Size: Power: TCR: BVT 0. 2 – 5 mΩ 1 %; 5 % 3920 up to 12 W from 50 ppm/K Values: Tolerance: Size: Power: TCR: BVR/BVZ (two terminal) BVN Values: Tolerance: Size: Power: TCR: 0. 2 – 5 mΩ 1 %; 5 % 4026 up to 12 W from 20 ppm/K 0. 3 – 6. 8 mΩ 1 %; 5 % 2512 up to 6 W from 50 ppm/K 0. 5, 1, 2*, 3* mΩ 1 %; 5 % 1216 up to 5 W from 50 ppm/K

INTRODUCTION OVERVIEW ISA-WELD® – resistors made of composite material R values: Tolerances: Currents: Mechanical tolerances: 15 35 µOhm - 10 m. Ohm 1%, 5% 1 m. A - 1, 500 A up to ± 0. 1 mm Standard SMD shunts Customer-specific and BMS shunts SMD packaging - Tape and reel - usually, new strips are necessary - tools are required - usually supplied in tubes or as bulk material - for volumes >100 k

INTRODUCTION OVERVIEW METHODS OF CURRENT MEASUREMENT – TECHNOLOGY COMPETITION Magnet core Current Resistor Conductor Detector/analysing electronics unit - Hall effect sensor - GMR sensor - Squid Pros: - free of losses - insulating 16 Cons: - size - high offset - offset TC - noise - linearity - stability - high TC - range dynamics - saturation - high costs Pros: - offset-free, zero TC - very low noise - very good linearity - high longtime stability - low TC - very wide dynamic range - high resolution - small - cost efficient Cons: - power loss - no insulation - low signal level

INTRODUCTION FACTS LOCAL AGENTS / SUBSIDIARIES / DISTRIBUTORS Europe North America South America Asia South Africa 17

PRODUCTS Application fields // Industrial branches // ISABELLENHÜTTE HEUSLER GMBH & CO. KG 18

Additional Applications in Electric and Hybrid Vehicles Product pictures are not to scale 19 PRECISION AND POWER RESISTORS

Additional Applications in Electric and Hybrid Vehicles Product pictures are not to scale 20 PRECISION AND POWER RESISTORS

PRODUCTS APPLICATION FIELDS AUTOMOTIVE APPLICATIONS ABS Antilock Braking System ACC Automatic Cruise Control ASR Anti-Slip Control BMS Battery Management System EHPS Electronic Hydraulic Power Steering EPAS Electronic Power Advanced Steering 21 ESP Electronic Stability Program GDI Gasoil Direct Injection TCS Traction Control System

PRODUCTS FURTHER APPLICATION FIELDS Shunts for IGBT power modules Power supply DC/DC converters Shunts for energy meters 22 APPLICATION FIELDS

PRODUCTS BATTERY MANAGEMENT Cars Trucks Hybrid and electronic cars USVs Camping vans Boats Measuring and monitoring current, voltage and temperature of the battery, with high accuracy, in an extremely wide range from a few m. A (stand-by current) to 1, 500 A (starter current). 23 APPLICATION FIELDS

PRODUCTS FURTHER BRANCHES Automotive Industrial electronics Drive technology Digital energy meters Telecommunication “White goods“ 24 INDUSTRIAL BRANCHES

CUSTOMERS Customer overview // ISABELLENHÜTTE HEUSLER GMBH & CO. KG 25

CUSTOMERS 26 CUSTOMER OVERVIEW APTIV AUTO-KABEL BOSCH CELESTICA CONTINENTAL DAIKIN DELPHI TECHNOLOGIES DENSO FLUKE HELLA JOHNSON CONTROLS KOSTAL LEAR MAGNA MAGNETI MARELLI TOSHIBA TRW VALEO

“We bring physics to the marketplace in the form of components that perform in the ppm range. “ ISABELLENHÜTTE HEUSLER GMBH & CO. KG 27

Thank your for your attention. Referent // Monat Jahr ISABELLENHÜTTE HEUSLER GMBH & CO. KG