80 9CRB type High Airflow Counter Rotating Fan ■ Features High Airflow and High Static Pressure The maximum airflow increased by approximately 22% compared with our conventional counter rotating fan, while maintaining equivalent * maximum static pressure. It's a perfect cooling solution especially for densely-packed equipment. Suitable for 2U Devices Measuring 80 mm square, this new fan is ideal for 2U sized equipment. *: Our conventional counter rotating fan is 80 x 80 x 80 mm“San Ace 80”9CRA type, Model No. 9CRA0812P8G001. 80×80×80 mm ■ Specifications The following nos. have PWM controls, pulse sensors. Operating PWM Operating Expected -1 Rated voltage Rated current Rated input Rated speed [min ] Max. airflow Max. static pressure SPL Model no. voltage range duty cycle temperature life 3 [V] [A] [W] Inlet Outlet [m / min] [CFM] [Pa] [inchH2O] [dB(A)] (Note 3) (Note 1,2) [V] [℃] [h] [%] 100 9.2 110.4 14,600 12,200 5.5 194 1,150 4.6 80 40,000 / 60 ℃ 9CRB0812P8G001 12 10.8 to 13.2 -20 to +70 (70,000 / 40 ℃) 20 0.17 2.04 2,000 1,670 0.7 24.7 21.6 0.09 24 Note 1: PWM frequency: 25 kHz Note 2: Fan does not rotate when PWM duty cycle is 0%. Note 3: Expected life at 40 ℃ ambient is just reference value. Models with the following sensor specifications are also available as options: Pulse sensor ■ Common Specifications □ Material ･･････････････････････････ Frame, Impeller: Plastics (Flammability: UL94V-0) □ Expected life ･････････････････････ Refer to specifications (L10: Survival rate: 90% at 60 ℃, rated voltage, and continuously run in a free air state) □ Motor protection system ･･････････ Current blocking function and reverse polarity protection □ Dielectric strength ････････････････ 50 / 60 Hz, 500 VAC, 1 minute (between lead conductor and frame) □ Sound pressure level (SPL) ････････ Expressed as the value at 1 m from air inlet side □ Operating temperature ････････････ Refer to specifications (Non-condensing) □ Storage temperature ･･････････････ -30 ℃ to +70 ℃ (Non-condensing) □ Lead wire ････････････････････････ Inlet: ○＋ Red ○－ Black Sensor: Yellow Control: Brown Outlet: ○＋ Orange ○－ Gray Sensor: Purple Control: White □ Mass ･････････････････････････････ 430 g ■ PWM Duty ■ Airflow - Static Pressure Characteristics - Speed Characteristics Example ・ PWM duty cycle ・ Operating voltage range -1 (min ) Voltage: 12 VDC (inch H2O) (Pa) (inch H2O) (Pa) 12 VDC PWM duty cycle 100% 1,400 1,400 16,000 PWM frequency: 25 kHz PWM duty cycle -1 13.2 V 14,600 min 100% 5 5 14,000 1,200 1,200 -1 12,200 min 12 V 12,000 1,000 1,000 4 4 Inlet side 10,000 10.8 V 800 800 3 3 8,000 600 600 Outlet side 6,000 2 60% 2 400 400 4,000 1 1 200 200 2,000 20% 0 0 3 3 0 1 2 3 4 5 6 (m / min) 0 1 2 3 4 5 6 (m / min) 0 100 (%) 0 20 40 60 80 100 120 140 160 180 (CFM) 0 20 40 60 80 100 120 140 160 180 200 (CFM) 200 PWM duty cycle → Airflow → Airflow → Static pressure → Static pressure Speed ■ PWM Input Signal Example ■ Example of Connection Schematic Input signal waveform VIH=4.75 V to 5.25 V ○＋ Inside of DC fan DC fan input voltage VIL=0 V to 0.4 V VIH T1 PWM duty cycle (%) = ×100 T 1 5V PWM frequency 25 (kHz) = T Source current (Isource) : 2 mA max. at control voltage 0 V 10kΩ VIL Sink current (Isink) : 2 mA max. at control voltage 5.25 V Control 22Ω Control terminal voltage: 5.25 V max. (Open circuit) PWM input signal T1 Isource When the control lead wire is open, 20kΩ Isink the fan speed is the same as the one T at a PWM duty cycle of 100%. ○－ Either TTL input, open collector or open drain can be used for PWM control input signal. ■ Specifications for Pulse Sensors Output circuit: Open collector Output waveform (Need pull-up resistor) Inside of DC fan In case of steady running VCE＝＋13.8 V max. Ic＝5 mA max. [VCE (SAT) ＝0.6 V max.] (One revolution) T1 to 4≒ (1/4) T0 T0 T1 to 4≒ (1/4) T0＝60/4N (sec) Pull-up resistor Sensor -1 N＝Fan speed (min ) T1 T2 T3 T4 Pull-up voltage Ic VOH VOL Sensor output 0 V (VCE) ■ Dimensions (unit: mm) Inlet side Outlet side 80±0.5 80±1 4-φ4.5±0.5 Lead wire 71.5±0.5 (4) (4) Mounting hole AWG22 UL1430 (10) +30 300 0 4-φ4.5±0.5 Mounting hole Rotating direction Airflow direction Rotating direction ■ Reference Dimensions of Mounting Holes and Vent Opening (unit: mm) Inlet side, Outlet side 78.5 4-φ4.5 71.5±0.3 Notice ●Please read the "Safety Precautions" on our website before using the product. ●The products shown in this catalog are subject to Japanese Export Control Law. Diversion contrary to the law of exporting country is prohibited. ●For protecting fan bearings against electrolytic corrosion near strong electromagnetic noise sources, 　we provide effective countermeasures such as Electrolytic Corrosion Proof Fans and EMC guards. Contact us for details. 3-33-1 Minami-Otsuka, Toshima-ku, Tokyo 170-8451, Japan TEL: +81 3 5927 1020 http://www.sanyodenki.com The names of companies and/or their products specified in this catalog are the trade names, and/or trademarks and/or registered trademarks of such respective companies. “San Ace” is a trademark of SANYO DENKI CO.,LTD. Specifications are subject to change without notice. CATALOG No. C1055B002 ‘16.6 φ90 78.5 71.5±0.3 71.5±0.5 80±0.5 ○－ ○＋