HFB44B12A

® SEPA CPU-COOLER HFB44B05A, HFB44B12A Pb COOLING of HIGH-SPEED CPUs AUTOMOTIVE FAN • FEATURES Small, extremely thin and light. The ball-bearing fan integrated in the heat sink is highly effective despite its height of only 7.5 mm! This renders it highly suitable for the Pentium 586 (K6) and for automotive use. • VERY LOW POWER CONSUMPTION An NdFe2O3 magnet ensures a high torque of the ball bearing fan motor and maximum conductance of heat and simultaneous low current consumption. • HIGHEST RELIABELITY AND LIFE EXPECTANCY The brushless motor is electronically commutated. A special IC is responsible for the electrical control. High reliability is achieved by 100% burn-in. • SILENT The air flow performance is increased and the noise reduced by computer-aided optimisation of the impeller and cooling surfaces. • ALARM-OUTPUT A speed impulse output enables simple monitoring of the fan speed. PERFORMANCE Type Oper. Voltage Oper. Current [V] [mA] HFB44B05A HFB44B12A 4.5...5...5.5 10.2...12...13.8 Thermal Resist. [K/W] *) Noise [dB(A)] **) Op. Temperature (case)°C Life Exp./MTBF [h @ 60°C] 2.5 2.5 28 28 -10 ... +80 -10 ... +80 75000 / 210000 75000 / 210000 110 (160) 40 (70) *) Measured with thermal conductive tape **) Measured at 1m from the air intake side of the fan COOLING PERFORMANCE SHAPE & DIMENSION 7.5 5 min. distance 44 °C 30 44 Temperature rise 40 20 10 HFB44B12A DC 12V 0.04A 0 0 2 4 6 8 CPU-heat dissipation SEPA EUROPE GmbH 12/03 10 [W] 12 Lead wire: 3xAWG28 blk=-VDC red=+VDC yel=Pulse D-79108 FREIBURG 140 Tel: +49(0)761/1561025 Fax: +49(0)761/1561027 Technical changes without notice • ALARM OUTPUT The SEPA® HFB44BxxA includes a speed impulse output, which enables monitoring the correct function of the fan. An alarm-board is available on request. The pulse is like a rectangular wave, the frequency correlates to 3 x rotor speed. At blocked rotor the output signal could be L (≤1.0V) or H (Vcc -1V). IMPORTANT: The pulse output is not protected against short circuit and must not connect to GND or Vcc without series-resistor. A pull-up-resistor is not needed. Do not connect not used pulse output to GND or Vcc (insolate). The HFB44Bxx(A) has tinned lead wire ends (without connector). CPU-COOLER OUTPUT WAVEFORM ALARM-CIRCUIT red HFB44BxxA + + (5mAmax) yel T blk 1n - - Run: L=1Vmax; H=Vcc-1V; T=2.3msec Stop: H or L • Mounting: The SEPA® HFB44BxxA is mounted on the CPU by simply using the double side adhesive thermo conductive foil THPAD44. THPAD contains an aluminium medium and bonds reliably and permanently even as high temperatures. THPAD44 is provided as a blank in the appropriate size (see accessories). The surface of the heat sink and the CPU must be clean and dry. Even mere traces of thermo conducting paste prevent reliable bonding. For more information please read the data sheet of adhesive pad or glue. IMPORTANT: Only hold the cooler at the outer edge and do not touch the impeller! • Accessories: THPAD44 LOCTITE 315 ALG01 CONNECTOR thermally conductive adhesive pad, with aluminium carrier. thermally conductive glue, after 4 min. stalwart SEPA ALARM, monitor-circuit, generates an acoustic signal in case of missing pulses. on request • Order Information: HFB44B05A HFB44B12A SEPA CPU-Cooler 5VDC, ball bearing, pulse, CE SEPA CPU-Cooler 12VDC, ball bearing, pulse, CE 214421010 214422010 SEPA® is the brand name for fans and CPU-Cooler, made by Nippon Keiki Works LTD., Tokyo SEPA EUROPE GmbH 12/03 D-79108 FREIBURG Tel: +49(0)761/1561025 Fax: +49(0)761/1561027 Technical changes without notice