Current Sensors Current Sensor MS Series Description The miniature MS Series are current sensors that measures DC and AC currents and provides electrical isolation between the circuit being measured and the output. The unipolar power source, small size and low cost make them the most cost effective solution for Hall effect current sensing in the industry. Features • High accuracy • Wide frequency range • Excellent linearity • Safety isolation • P.C. board mount Applications • Industrial • Automotive • Ideal Replacement for Shunt or CT • Appliances • Battery Monitoring • U.P.S. (Uninterruptable Power Supply) • Load Monitoring at the point of Distribution i.e. Mount on PCB, the back plane or fuse Specifications MS-15 MS-30 Electrical Data Measurement Range ...................................... ±15 AMPS ±30 AMPS Sensitivity (at +25ºC) .................................... 0.09 V/A to 0.14 V/A 0.03 V/A to 0.045 V/A Overload Capacity ......................................... ±25 AMPS ±45 AMPS Supply Voltage (See Note 2) ........................... +5.0 VDC ±0.5 V Isolation Between Primary and Output ............. 1250 VRMS for 1 minute Accuracy - Dynamic Information Zero Offset (at +25ºC) .................................. 2.5V±0.3V Linearity (at +25ºC) ...................................... 1% Typical Zero Offset Drift ............................................ ±2.0mV/ºC Gain Variation ................................................ ±0.18%/ºC Frequency Range (See Note 1) ....................... DC 20 kHz General Information Operating Temperature................................... -40ºC to +85ºC Storage Temperature ..................................... -55ºC to +95ºC Current Consumption ..................................... 12 mA max Output Burden .............................................. 1mA source/10mA sink MAX Enclosure ..................................................... UL94-VO Insulation Resistance ..................................... 200M Ohm min at 1000V Weight ......................................................... 8g nominal Fastening...................................................... PCB Footprint (as shown on reverse) Output Reference .......................................... A positive output signal is obtained when the primary current flows in the direction of the polarity arrow. Notes: 1. Response time is affected by the proximity of the return conductor and ferrous metals. It is best to test the sensor in the actual environment to obtain representative performance. 2. This device is ratiometric and sensitivity will vary with changes in supply voltage. Percent variation in sensitivity can be calculated with the formula % sensitivity= ((VDD/5V) -1) X 100% 3. Due to continuous process improvement, specifications subject to change without notice. 6120 Hanging Moss Road • Orlando, Florida 32807 Phone (407) 678-9748 • Fax (407) 677-5765 • www.fwbell.com Rev. date 04/2003 Currrent ������� ����������������� Mechanical Dimensions All dimensions are in inches (millimeters) PIN 1 VDD (+5v) 0.59" (15.0) PIN 2 GROUND 0.016" (0.4) 0.45" (11.4) PIN 3 OUTPUT 0.10" (2.5) 0.10" (2.5) 0.12" (3.0) 0.82" (20.7) 0.28" (7.2) PIN 5 I- PIN 4 I+ 0.23" (5.8)(TYP) 0.12" (3.0) 0.13" (3.2) 0.13" (3.2) 0.01" (0.3) I+ Tolerance: +0.01" (+0.254mm) Pins 4,5: MS-15 (18 AWG) MS-30 (13 AWG) Note: Due to continuous process improvement, specifications subject to change without notice. 6120 Hanging Moss Road • Orlando, Florida 32807 Phone (407) 678-9748 • Fax (407) 677-5765 • www.fwbell.com Rev. date 04/2003