WIRE WOUND RESISTORS CERAMIC ENCASED TYPE TM HEA Fire Proof Ceramic Housing SERIES Alloy Wire Wound Element On Heat Conducting Ceramic / Fibre Glass Substrate EUROPEAN STYLE Power Ceramic Encased Wire Wounds Quartz Silica Powder Mechanically Crimped Termination Assembly 2.5 W to 17 W R 025 to 70 K PHYSICAL CONFIGURATION HEA SERIES LM d H 35+3 35+3 L w 6mm, reduced solderability in this area HTR TYPE C-2A C-4 C-5B C-6 C-7A C-7B C-9/ C-10A C-11 C-17 POWER RATING at 70C 2.5W 4W 5W 6W 7W 7W 9W/ 10W 11W 17W DIMENSIONS (mm) L +1.5 W +1 H +1 d +0.05 LM +1 RESISTANCE TYPICAL RANGE WT. min max PER PC (gms) 15.0 20.0 25.0 30.0 38.0 25.0 6.0 6.0 6.0 6.0 6.0 9.0 6.0 6.0 6.0 6.0 6.0 9.0 0.8 0.8 0.8 0.8 0.8 0.8 35 40 45 50 60 45 R025 R04 R05 R10 R10 R05 6K8 11K 16K 22K 33K 16K 1.6 2.0 2.3 2.8 4.9 4.8 38.0 50.0 75.0 9.0 9.0 9.0 9.0 9.0 9.0 0.8 0.8 0.8 60 70 95 R10 R10 R10 33K 47K 70K 7.3 9.5 13.8 For resistance values less than R10 and tolerance less than +2% please measure resistance over centered length LM. ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA Test Performance Requirements Resistance tolerance + 10% [K]; + 5% [J]; +3% [H], + 2% [G]; +1% [F] Rated ambient temperature [See derating curve] at 70C full power dissipation Voltage rating V= PxR Dielectric withstanding voltage Max. DR +[2% + R05] Insulation resistance > 1000 M [minimum] Temperature co-efficient +40 to +150 ppm/ C [medium and high values] +400 to +500 ppm/ C [low and very low values] Max.D R +[2% + R05] Moisture resistance Max.D R +[3% + R05] Load life Max.D R +[3% + R05] Average Ambient operating temperature range -40C to +155C Rated dissipation [%] DERATING CURVE Short time overload Flame test HEA WIRE WOUND RESISTORS CERAMIC ENCASED TYPE TM 70C 120 100 80 40 0 40 80 120 160 200 240 275 Ambient temperature [C] UL specifications have been met satisfactorily. TYPICAL APPLICATIONS HEA series enjoy a wide market in audio and TV field. Apart from these applications and as they are also available in close tolerance, they have increasingly found favour with OEM's in the industrial field, especially where the following properties are required (a) High degree of insulation (b) Low surface temperature. Depending on resistance value and application the resistors core may be fibreglass or ceramic. These resistors are also available for use in pulse applications, for further information please refer to "Understanding pulse & over load capability of wire wound resistors". In case a tailor-made pulse resistor is required, please refer to "Questionnaire of data required" and provide data accordingly. 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 HEA C-4 100R J TOLERANCE RESISTANCE VALUE HTR TYPE SERIES Note : TAPING : Types C-2A, C-4 and C-5B can be supplied in taped form. Please refer tape/ammo pack specifications and tape/reel specifications. In case pulse type is required, please suffix HTR Type with I eg. C-4I.