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K-band (24GHz) Doppler Sensor Module 

 

Dopler sen

 MODEL NO. NJR4251 / 51J

 

* DRO (Dielectric Resonator Oscillator) for 24GHz direct oscillation
* Small size : 44.3 mm x 22.1 mm x 9.4 mm
* Low Power Consumption : 50 mA max. @+5V DC
* Flexibility of selection for Antenna (Horn and patch antenna)

 

 

 
Model No Center
Frequency
Output
Power
Operating
Voltage
Operation Region
NJR4251 24.15 GHz 7 mW +5 Vdc CW / Pulse All regions except Japan

 

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Specification

Electrical Characteristics   (at +25℃, +5VDC)

1.

Operating Voltage

5.0±0.2 Vdc

2.

Operating Current

50 mA typ.

3.

Frequency StaЬility

±5 MHz max. (-30 to +60℃)

4.

Output Power

+7 mW typ.

5.

Return Loss Sensitivity

-80dBc typ.

6.

Second Harmonic Emission

1μW  max.             [Model: NJR4251] 2.5μW max.   [Model : NJR4251J]

AЬsolute Maximum Ratings

1.

DC lnput Voltage

+7 Vdc

2.

Operating Temperature Range

-30 to +60℃

3.

Storage Temperature Range

-40 to +80℃

4.

Relative Humidity

95 % at 35℃

5.

ViЬration

G=10            (f=30,50 Hz, t=10min., Direction; Х, У, Z)

6.

Shock

G=20            (Half Sine, 10msec., Direction; Х, У, Z)

Regulation

1.

Regulation for compliance

ETS 300 440 / FCC Part 15   [Model: NJR4251]

Japanese Radio Law         [Model : NJR4251J]

 

 

 

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