SURFACE MOUNT CERAMIC ENCASED TYPE TM HSVAS/ HSVALS HSVALS Series Alloy Electrical Resistance Ribbon SERIES Fire Proof Ceramic Housing Terminals Suitable For Reflow Soldering Surface Mount Wire Wound/Current Sense Resistors Quartz Silica Powder HSVAS Series Alloy Wire Wound Element On Heat Conducting Ceramic/ Fiber Glass Substrate Fire Proof Ceramic Housing Terminals Suitable For Reflow Soldering Quartz Silica Powder PHYSICAL CONFIGURATION L TM C 4.0+1.0 3.0+0.2 HTR SERIES HTR TYPE POWER RATING AT 70C HSVAS SV4AS 4W 20.0 20.5 RESISTANCE RANGE max min R10 11K HSVAS SV5AS 5W 25.0 25.5 R10 16K 3.0 HSVALS SV4ALS 4W 20.0 20.5 R003 R051 2.5 HSVALS SV5ALS 5W 25.0 25.5 R004 R068 3.0 DIMENSIONS (mm) L C (+1.5) (+1.5) TYPICAL WT. PC. (gms) 2.5 SV4ALS & SV5ALS :- Resistance value must be checked using 41/2 digit micro-ohm meter with four wire system and insulated clips and the designer of the pad layout might prefer to split the pad for four wire checking. MOUNTING / ASSEMBLY DATA For the guidance of the Design Engineer, our applications laboratory has given the recommended pad size and geometry which is shown below :C 6.0+0.5 4.0+0.5 ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA Test Performance Requirements Resistance tolerance + 10% [K]; + 5% [J]; +3% [H]; +2% [G]; +1% [F] Rated ambient temperature at 70C full power dissipation derated linearly to zero at 275C Insulation resistance > 1000 Mega Ohms Short time overload 5 times rated wattage for 5 sec. Di-electric withstanding voltage 500 Volts r.m.s. Ambient operating temperature range -40C to + 155C Temperature co-efficient of resistance < + 250ppm/C (Average). For very low resistance values, TCR will increase. TYPICAL APPLICATIONS These devices have been introduced to answer the increased demand for power resistors which can be surface mounted. The HSVAS Series caters to those who require a normal wire wound with surface mounting and the HSVALS series caters to those who require a shunt / current sense device which is surface mounted. Note : Due to recent technological advances, the ceramic cases used may be steatite ceramic or corderite ceramic or high alumina ceramic depending on the nature of the application. Hence the ceramic cases may be off-white or variations of brown and variations of grey; colours which are inherent to these ceramic materials. ORDERING INFORMATION HSVAS/HSVALS SV4AS/SV5ALS 3K0/R03 J TOLERANCE RESISTANCE VALUE HTR TYPE SERIES HSVAS/HSVALS SURFACE MOUNT SILICONE COATED TYPE TM