F251rf Copal Electronics Brushless Dc Fans Features

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COPAL ELECTRONICS F251RF BRUSHLESS DC FANS ■ FEATURES ● FG signal type ● Low noise, 11 dB (A) type by the correct application of hydrodynamic design of impeller and frame ● Light weight (approx. 7 g) RoHS compliant ■ STRUCTURE ● Frame and impeller ABS/PBT alloy ● Bearing B type : 1 ball bearing and 1 sleeve bearing C type : 1 sleeve bearing ■ PART NUMBER DESIGNATION F251RF - 12 LL B Series name Bearing B : 1 ball bearing and 1 sleeve bearing C : 1 sleeve bearing Power supply 05 : DC5 V 12 : DC12 V Air flow LL : 0.04 m3/min ■ LIST OF PART NUMBERS Power supply Part number DC5 V F251RF-05LLB F251RF-12LLB DC12 V F251RF-12LLC ❈ : Verify the above part numbers when placing orders. ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. Oct, 2005 COPAL ELECTRONICS F251RF BRUSHLESS DC FANS ■ STANDARD SPECIFICATIONS F251RF-05LLB F251RF-12LLB F251RF-12LLC Rated voltage DC5 V DC12 V DC12 V Voltage range 4.2 ~ 5.7 V Rated current 0.05 A 25 10.2 ~ 13.8 V 20 Static pressure (Pa) Item ■ AIR FLOW PERFORMANCE CURVES 0.03 A 6500 min-1 Rotating speed 3 Air flow 0.04 m /min Static pressure 20 Pa Noise 15 10 11 dB (A) Net weight 5 Approx. 7 g ❈ : Figures in the table are typical values under rated operating condition. 0 ■ FG SIGNAL CHARACTERISTICS Item Specification Output circuit 0.02 0.04 0.06 Air flow (m3/min) ● FAN condition and FG sighal FAN condition Stop Rotation One rotation Open collector High FG signal Low 15 V Maximum output voltage Lock Rotation 5 mA Maximum sink current FAN condition Vsat : Maximum 0.4 V Output saturation voltage (at Low) Stop High FG signal Low High or High/Low intermittent motion ❈ Output (lock) Time a High Signal (lock) 0.5 s (minimum) Lock 4 pulses / rotation Output (rotate) ● Output circuitry Connect to any voltage Do not exceed maximum output voltage 0.5 s minimum ❈ : 2 conditions are possible according to the stop position of the impeller. 1 “High” (Fixed) : Constantly “High” 2 “High/Low” intermittent motion : “High” and “Low” switch at regular time intervals. It is guaranteed that “high” continues over 0.5 seconds. Pull up Collector Power + GND Yellow Red I Pull up resistance Approx. 10 kΩ Do not exceed maximum sink current Black 10±0.5 Lead wire UL1685 AWG28 Black : 0 V Red : B Rated voltage Yellow : FG 4 – φ 2.8 20±0.5 □ 25 Dimension of mounting hole for recommendation .6 φ 23 4 – C2 20±0.5 Air flow (Unit: mm) 20±0.5 150±20 ■ OUTLINE DIMENSIONS 4 – φ 2.8 20±0.5 ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. Oct, 2005